Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Antagonist activity at human CRTH2 receptor expressed in CEM cell assessed as inhibition of PGD2-induced cell migration after 3 hrs by transwell migration assayAntagonist activity at human CRTH2 receptor expressed in CEM cell assessed as inhibition of PGD2-induced cell migration after 3 hrs by transwell migration assay
Antagonist activity at human CRTH2 receptor expressed in CEM cell assessed as inhibition of PGD2-induced cell migration after 3 hrs by transwell migration assayAntagonist activity at human CRTH2 receptor expressed in CEM cell assessed as inhibition of PGD2-induced cell migration after 3 hrs by transwell migration assay
Agonist activity at human CRTh2 expressed in HEK cells assessed as forskolin-induced intracellular cAMP accumulation by ELISA based chemiluminescence assayAgonist activity at human CRTh2 expressed in HEK cells assessed as forskolin-induced intracellular cAMP accumulation by ELISA based chemiluminescence assay
Agonist activity at human CRTh2 expressed in HEK cells assessed as forskolin-induced intracellular cAMP accumulation by ELISA based chemiluminescence assayAgonist activity at human CRTh2 expressed in HEK cells assessed as forskolin-induced intracellular cAMP accumulation by ELISA based chemiluminescence assay
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape changeAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape changeAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape changeAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape changeAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Effective concentration for DP2 mediated stimulation of actin polymerization in eosinophilsEffective concentration for DP2 mediated stimulation of actin polymerization in eosinophils
Partial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysisPartial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysis
Partial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysisPartial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysis
Partial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysisPartial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysis
Partial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysisPartial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysis
Partial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysisPartial antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by FACS analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Effective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophilsEffective concentration DP2 mediated expression of the adhesion molecule CD11b in eosinophils
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change after 4 hrs by flow cytometry
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expressionAntagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expression
Antagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expressionAntagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expression
Antagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expressionAntagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expression
Antagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expressionAntagonist activity against human CRTh2 receptor in human eosinophils assessed as inhibition of DK-PGD2-induced CD11b expression
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells preincubated for 1 hr by radio-labelled [35S]-GTPgammaS binding assay in presence of 4% HSAAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells preincubated for 1 hr by radio-labelled [35S]-GTPgammaS binding assay in presence of 4% HSA
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells preincubated for 1 hr by radio-labelled [35S]-GTPgammaS binding assay in presence of 4% HSAAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells preincubated for 1 hr by radio-labelled [35S]-GTPgammaS binding assay in presence of 4% HSA
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albuminAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albumin
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albuminAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albumin
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy in the presence of PGD2 and 0.1% BSAAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy in the presence of PGD2 and 0.1% BSA
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy in the presence of PGD2 and 0.1% BSAAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy in the presence of PGD2 and 0.1% BSA
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO/Ga16 cells co-expressing Galpha16 protein assessed as calcium flux by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in CHO/Ga16 cells co-expressing Galpha16 protein assessed as calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in CHO/Ga16 cells co-expressing Galpha16 protein assessed as calcium flux by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in CHO/Ga16 cells co-expressing Galpha16 protein assessed as calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity against mouse CRTh2 receptor expressed in K562 cells by [35S]GTPgamma binding assayAntagonist activity against mouse CRTh2 receptor expressed in K562 cells by [35S]GTPgamma binding assay
Antagonist activity against mouse CRTh2 receptor expressed in K562 cells by [35S]GTPgamma binding assayAntagonist activity against mouse CRTh2 receptor expressed in K562 cells by [35S]GTPgamma binding assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 productionAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 production
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 productionAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 production
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 productionAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 production
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 productionAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced IL13 production
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assayAntagonist activity at human CRTH2 receptor expressed in HEK385-7 cells assessed as inhibition of PGD2-mediated beta-arrestin translocation preincubated 5 mins prior to PGD2 challenge measured after 5 mins by BRET assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 receptor in human Th2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometryAntagonist activity at CRTH2 receptor in human Th2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometry
Antagonist activity at CRTH2 receptor in human Th2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometryAntagonist activity at CRTH2 receptor in human Th2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxisAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxis
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxisAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxis
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxisAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxis
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxisAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced chemotaxis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albuminAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albumin
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albuminAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-induced calcium flux in presence of 1% bovine serum albumin
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 120 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 180 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cellsInhibition of PGD2-induced inositol phosphate formation at human chemoattractant receptor-homologous molecule expressed on TH2 cells
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Inhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assayInhibition of beta-arrestin translocation at human chemoattractant receptor-homologous molecule expressed on TH2 cells in BRET assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assayAntagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assay
Antagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assayAntagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assay
Antagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assayAntagonist activity at human CRTH2 receptor assessed as inhibition of PGD2-induced signaling by inositol-phosphate assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Antagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopyAntagonist activity at human CRTH2 expressed in human CHO cells by cellular dielectric spectroscopy
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activityAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activity
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activityAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activity
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activityAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activity
Antagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activityAntagonist activity at CRTH2 expressed in Th2 cells assessed as inhibition of PGD2-induced antiapoptotic activity
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 60 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 expressed in CEM cells assessed as inhibition of PGD2-stimulated cell migration after 3 hrs by transwell migration assayAntagonist activity at human CRTH2 expressed in CEM cells assessed as inhibition of PGD2-stimulated cell migration after 3 hrs by transwell migration assay
Antagonist activity at human CRTH2 expressed in CEM cells assessed as inhibition of PGD2-stimulated cell migration after 3 hrs by transwell migration assayAntagonist activity at human CRTH2 expressed in CEM cells assessed as inhibition of PGD2-stimulated cell migration after 3 hrs by transwell migration assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change incubated for 20 mins prior to PGD2-challenge measured after 10 mins by flow cytometryAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change incubated for 20 mins prior to PGD2-challenge measured after 10 mins by flow cytometry
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change incubated for 20 mins prior to PGD2-challenge measured after 10 mins by flow cytometryAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change incubated for 20 mins prior to PGD2-challenge measured after 10 mins by flow cytometry
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysisAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysis
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysisAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysis
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometryAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change by flow cytometry
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape changeAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 30 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasmaAntagonist activity at human CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by flow cytometric analysis in presence of 50% human plasma
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albuminAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albumin
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albuminAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albumin
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentrationAntagonist activity at human CRTH2 receptor expressed in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ concentration
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in PGD2-stimulated CHO.K1 cells preincubated for 15 mins by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 minsAntagonist activity at human CRTh2 receptor expressed in CHO cells assessed as inhibition of prostaglandin D2 and forskolin-induced cAMP accumulation after 45 mins
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assayAntagonist activity at PGD2-induced human CRTh2 receptor activation expressed in HEK293 cells assessed as intracellular Ca2+ liberation by FLIPR assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysisAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysis
Antagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysisAntagonist activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced shape change by gated autofluorescence forward scatter analysis
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape changeAntagonist activity against CRTh2 receptor in human whole blood assessed as eosinophil shape change
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change pretreated for 20 mins measured after 1 hr by flow cytometric analysis
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assayAntagonist activity at CRTH2 in human eosinophil assessed as effect of cellular shape change by EOS assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assayAntagonist activity at CRTh2 (unknown origin) stably expressed in CHO.K1 cells co-mixing the compound and PGD2 by radio-labelled [35S]-GTPgammaS binding assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albuminAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albumin
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albuminAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting in presence of 1% human serum albumin
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assayAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux after 5 mins by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assayAntagonist activity at human CRTH2 expressed in HEK293 cells assessed as inhibition of forskolin-induced increase intracellular [125I]cAMP level by scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2
Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced intracellular cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Antagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation countingAntagonist activity human CRTH2 expressed in chinese hamster CHO cells assessed as inhibition of PGD2-induced [35S]GTPgamma binding by liquid scintillation counting
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometryAntagonist activity at CRTh2 in human whole blood assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 10 mins followed by DK-PGD2 addition measured after 4 mins by flow cytometry
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assayAntagonist activity at human CRTH2 receptor expressed in HEK293-EBNA cells assessed as inhibition of forskolin-stimulated intracellular cAMP production by [125I]-cAMP scintillation proximity assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assayAntagonist activity against CRTH2 receptor measured as inhibition of PGD2-induced beta-arrestin translocation in HEK293 cells by BRET assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assayAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane by [35S]GTP-gamma-S binding assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assayAntagonist activity at human recombinant CRTh2 expressed in CHO-K1 cells by cAMP TR FRET assay
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation countingAntagonist activity at human CRTH2 receptor expressed in CHO cell membrane assessed as inhibition of PGD2-induced [35S]GTPgammaS binding after 30 mins by microbeta scintillation counting
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation countingAntagonist activity at CRTh2 (unknown origin) expressed in CHO.K1 cells assessed as inhibition of PGD2-induced [35S]-GTPgammaS binding after 2 hrs by liquid scintillation counting
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium fluxAntagonist activity at human CRTh2 receptor expressed in HEK cells assessed as inhibition of PGD2-induced calcium flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ fluxAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as inhibition of PGD2-mediated Ca2+ flux
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to controlAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding at 1 to 5 uM preincubated for 1 hr followed by 50 nM PGD2 and 0.1 nM [35S]-GTPgammaS addition measured after 2 hrs by liquid scintillation counting analysis relative to control
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assayAntagonist activity at human CRTh2 expressed in CHOK1 cells assessed as inhibition of PGD2-induced beta-arrestin recruitment incubated for 30 mins followed by PGD2 stimulation measured after 60 mins by PathHunter based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayAntagonist activity at human CRTH2 receptor expressed in HEK cells assessed as inhibition of forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Antagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formationAntagonist activity at human recombinant CRTH2 receptor expressed in HEK293 cells assessed as inhibition of DK-PGD2-induced intracellular cAMP formation
Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2
Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2Concentration required to inhibit PGD-2 induced change in the shape of human eosinophils expressing CRTH2
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulationAntagonist activity against human CRTh2 receptor expressed in CHO cells assessed as effect on cAMP accumulation
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assayAntagonist activity at human CRTh2 receptor expressed in HEK293 cells assessed as inhibition of PGD2-induced calcium flux by FLIPR assay
Antagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation countingAntagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation counting
Antagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation countingAntagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation counting
Antagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation countingAntagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation counting
Antagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation countingAntagonist activity at mouse CRTh2 receptor expressed in CHO-K1 cells assessed as inhibition of [125S]-GTP-gamma-S binding after 50 mins by liquid scintillation counting
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting methodAntagonist activity against human CRTh2 expressed in CHO-K1 cells assessed as inhibition of PGD2-mediated attenuation of forskolin-induced cAMP accumulation incubated for 60 mins by scintillation counting method
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Antagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISAAntagonist activity at human CRTH2 receptor expressed in HEK293 cells assessed as inhibition of PGD2/forskolin-induced intracellular cAMP production after 20 mins by ELISA
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.Calcium Flux Assay: Calcium Flux Assay Using Fluorometric Imaging Plate Reader (FLIPR). Buffer containing dye (from the FLIPR® Calcium 3 Assay Kit from Molecular Devices, a division of MDS Analytical Technologies and MDS Inc.) was prepared by dissolving the contents of one bottle into 200 mL Hank's Balanced Salt Solution containing 20 mM HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) and 2.5 mM probenecid. Growth media was removed from the cell plates and 25 μL of Hank's Balanced Salt Solution (HBSS) containing 20 mM HEPES, 0.05% BSA and 2.5 mM probenecid was added to each well followed by 25 μL of diluted dye using a Multidrop dispenser. The plates were then incubated for 1 hour at 37° C.
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysisAntagonist activity at CRTh2 receptor (unknown origin) overexpressed in CHOK1 cell membranes assessed as inhibition of [35S]-GTPgammaS binding measured after 2 hrs by liquid scintillation counting analysis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxisAntagonist activity at human CRTH2 receptor assessed as inhibition of DK-PGD2-induced eosinophil chemotaxis
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assayAntagonist activity at human CRTH2 transfected in human KB8 cells assessed as inhibition of PGD2-induced increase in intracellular Ca2+ by fluo-4AM dye-based assay
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometryAntagonist activity at CRTH2 in human blood cells assessed as inhibition of PGD2-induced eosinophil cell shape change after 10 mins by flow cytometry
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assayAntagonist activity at human CRTH2 receptor expressed in HEK285-7 cells assessed as inhibition of beta arrestin translocation by bioluminescence resonance energy transfer assay
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activationAntagonist activity at CRTh2 (unknown origin) assessed as inhibition of CD11b activation
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Partial agonist activity at human CRTH2 receptor expressed in HEK cells assessed as forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayPartial agonist activity at human CRTH2 receptor expressed in HEK cells assessed as forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Partial agonist activity at human CRTH2 receptor expressed in HEK cells assessed as forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assayPartial agonist activity at human CRTH2 receptor expressed in HEK cells assessed as forskolin-induced cAMP formation preincubated for 10 mins followed by forskolin challenge measured after 10 to 60 mins by ELISA assay
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity against CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity against CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity against CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity against CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human prostaglandin D2 receptor assessed as inhibition of PGD2-induced receptor activation by cell based FLIPR assayAntagonist activity at human prostaglandin D2 receptor assessed as inhibition of PGD2-induced receptor activation by cell based FLIPR assay
Antagonist activity at human prostaglandin D2 receptor assessed as inhibition of PGD2-induced receptor activation by cell based FLIPR assayAntagonist activity at human prostaglandin D2 receptor assessed as inhibition of PGD2-induced receptor activation by cell based FLIPR assay
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory concentration for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Inhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calciumInhibitory activity for PGD2-mediated receptor activation in a fluorescence assay that measures changes in intracellular calcium
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assayAntagonist activity at human CRTH2 receptor expressed in CHO-1 cells assessed as inhibition of PGD2-induced Ca2+ flux preincubated for 30 mins followed by PGD2 challenge measured after 60 mins by chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assayAntagonistic activity at CRTH2 in human eosinophils assessed as inhibition of PGD2-induced calcium mobilization after 60 mins by Fluo-3 based fluorescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Antagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assayAntagonist activity at human CRTh2 expressed in HEK cells assessed as inhibition of DK-PGD2-mediated attenuation of forskolin-induced cAMP accumulation preincubated for 10 mins followed by forskolin stimulation measured after 10 to 60 mins by ELISA based chemiluminescence assay
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Inhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranesInhibitory activity for binding of PGD-2 to CRTH-2 in hCRTH-2 binding assay using HEK293 cell membranes
Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.
Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.
Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.Membrane binding assay using human DP2 stably expressed in K562 leukemia cells.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Inhibition of CRTH2-mediated chemotaxis of human eosinophils towards DK-PGD2 after 30 mins by fluorescence counterInhibition of CRTH2-mediated chemotaxis of human eosinophils towards DK-PGD2 after 30 mins by fluorescence counter
Inhibition of CRTH2-mediated chemotaxis of human eosinophils towards DK-PGD2 after 30 mins by fluorescence counterInhibition of CRTH2-mediated chemotaxis of human eosinophils towards DK-PGD2 after 30 mins by fluorescence counter
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human CRTh2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape changeAntagonist activity against CRTh2 receptor in human eosinophils assessed as cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysisDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 90 mins by TopCount analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 60 mins by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 60 mins by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 60 mins by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in HEK293 cells after 60 mins by liquid scintillation counting
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting in presence of 4% human serum albuminDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting in presence of 4% human serum albumin
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting in presence of 4% human serum albuminDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting in presence of 4% human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Antagonist activity at CRTH2 in human TH2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometryAntagonist activity at CRTH2 in human TH2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometry
Antagonist activity at CRTH2 in human TH2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometryAntagonist activity at CRTH2 in human TH2 cells assessed as inhibition of PGD2-induced chemotaxis after 1 hr by hemocytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-13 production after 6 to 8 hrs
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting in the presence of 0.1% BSADisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting in the presence of 0.1% BSA
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting in the presence of 0.1% BSADisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting in the presence of 0.1% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGJ2-induced shape change after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of PGD2-induced IL-4 production preincubated for 30 mins followed by PGD2 addition measured after 6 hrs
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of 11-Dehydro-TXB2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of delta12-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation countingDisplacement of [3H]PGD2 from recombinant human CRTH2 expressed in HEK293 cells after 2 hrs by microbeta scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]Dofetilide from human CRTH2 receptor expressed in HEK293 cell membranes
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human RBC assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Antagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape changeAntagonist activity at CRTh2 in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in presence of 50% human plasma by scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Antagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrsAntagonist activity at DP2 receptor in CD4-positive human TH2 cells assessed as inhibition of DK-PGD2-induced IL-5 production after 6 to 8 hrs
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change preincubated for 10 mins followed by DK-PGD2 challenge measured after 40 mins by FACS flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change preincubated for 10 mins followed by DK-PGD2 challenge measured after 40 mins by FACS flow cytometric analysis
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change preincubated for 10 mins followed by DK-PGD2 challenge measured after 40 mins by FACS flow cytometric analysisAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of DK-PGD2-induced eosinophil shape change preincubated for 10 mins followed by DK-PGD2 challenge measured after 40 mins by FACS flow cytometric analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasmaAntagonist activity at CRTH2 receptor in human eosinophils assessed as inhibition of PGD2-induced cell shape change incubated for 1 hr prior to PGD2 induction measured after 5 mins by FACS flow cytometric analysis in presence of human plasma
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasmaDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by scintillation counting in presence of 50 % human plasma
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis in presence of human serum albuminAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis in presence of human serum albumin
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis in presence of human serum albuminAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis in presence of human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human whole assessed as inhibition of DK-PGD2-induced eosinophils shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK 293 cells in presence of 0.5% BSA by scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5 % BSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in HEK293 cells after 2 hrs by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assayAntagonist activity at CRTH2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change after 10 mins by fluorescence assay
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometryAntagonist activity at CRTh2 in human peripheral blood assessed as inhibition of PGD2-induced eosinophil shape change at room temperature by flow cytometry
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation countingDisplacement of [3H]-PGD2 from human CRTH2 expressed in HEK293 cells in buffer solution with 0.5% bovine serum albumin by scintillation counting
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of 50% plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.Binding Assay: A whole cell receptor binding assay using [3H]ramatroban as the competing radioactive ligand was employed to evaluate the compound binding activity to human CRTH2. The radioactive ligand [3H]ramatroban was synthesized according to Sugimoto et. al. (Eur. J. Pharmacol. 524, 30-37, 2005) to a specific activity of 42 Ci/mmol.A cell line stably expressing human CRTH2 was established by transfecting CHO-K1 cells with two mammalian expression vectors that harbored human CRTH2 and G-alpha16 cDNAs, respectively, using FuGene 6 transfection reagent (from Roche). Stable clones expressing CRTH2 were selected by staining each clone with BM16 (BD Pharmingen from BD Biosciences, a division of Becton, Dickinson and Company), which is a rat monoclonal antibody to human CRTH2. The cells were maintained as monolayer cultures in Ham's F-12 medium containing 10% fetal bovine serum, 100 units/mL penicillin, 100 ug/mL streptomycin, 2 mM glutamine, 0.5 mg/mL G418 (geneticin) for CRTH2.
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Antagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometryAntagonist activity at DP2 receptor in human isolated eosinophils assessed as inhibition of DK-PGD2-induced shape change preincubated for 5 mins followed by DK-PGD2 addition measured after 5 mins by flow cytometry
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albuminDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells in presence of 0.5% human serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins followed by PGD2 addition measured after 4 mins by side scatter analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSADisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Displacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assayDisplacement of [3H]-PGD2 from CRTh2 receptor by scintillation proximity assay
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Antagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometryAntagonist activity at CRTh2 receptor in human isolated eosinophil assessed as inhibition of DK-PGD2-induced shape change after 5 mins by flow cytometry
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albuminDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 0.5% bovine serum albumin
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasmaDisplacement of [3H]-PGH2 from human CRTH2 receptor expressed in HEK293 cells by scintillation counting in presence of buffer containing 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasmaDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysisDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Inhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysisInhibition of human prostanoid DP2 receptor in human whole bood assessed as eosinophil shape change preincubated for 15 mins before addition of PGD2 measured after 5 mins by FACS analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.Fluorometric Imaging Plate Reader (FLIPR) Assay: Cell Culture Conditions: CHO-K1 cells previously transfected with G-alpha 16 were subsequently transfected with the human CRTH2 receptor and the neomycin resistance gene. Following selection in 800 ug/mL G418 (geneticin), individual clones were assayed for their receptor expression based on staining with an anti human CRTH2 IgG, followed by assaying for their response to 13,14-dihydro-15-keto Prostaglandin D2 (DK-PDG2) (ligand) in the Ca2+ Flux assay. Positive clones were then cloned by limiting dilution cloning. The transfected cells were cultured in Ham's F-12 medium supplemented with 10% fetal bovine serum, 2 mM glutamine, 100 U/mL penicillin/100 ug/mL streptomycin, 200 ug/mL hygromycin B, and 800 ug/mL G418 (geneticin). Cells were harvested with trypsin-EDTA (trypsin-ethylenediaminetetraacetic acid) and counted using ViaCount reagent (from Guava Technologies, Inc. which contains two DNA-binding dyes.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Antagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysisAntagonist activity at CRTh2 receptor in human whole blood assessed as inhibition of PGD2-induced eosinophil shape change preincubated for 10 mins with PGD2 addition measured after 4 mins by forward scatter and side scatter analysis
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.Biological Assays: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration.
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysisDisplacement of [3H]PGD2 from human CRTH2 transfected in CHO cells by liquid scintillation counting analysis
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasmaDisplacement of [3H]-PGD2 from human CRTH2 receptor expressed in human HEK293 cells by scintillation counter in presence of 50% human plasma
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranesDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cell membranes
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSADisplacement of [3H]PGD2 from human CRTh2 receptor expressed in 293 cells by liquid scintillation counting in presence of 0.2 % HSA
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albuminDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in HEK293 cell membranes after 90 mins by scintillation counting analysis in presence of human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albuminDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting in presence of 0.2 % human serum albumin
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSADisplacement of [3H]PGD2 from human CRTH2 receptor expressed in 293 cells by scintillation counting in presence of 0.5% BSA
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Displacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET methodDisplacement of [3H]PGD2 from recombinant human CRTH2 receptor expressed in CHO-K1 cells after 30 min by FRET method
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Antagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape changeAntagonist activity at CRTh2 receptor in human eosinophil assessed as inhibition of PGD2-induced cell shape change
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albuminDisplacement of [3H]PGD2 from human prostaglandin D2 receptor in presence of human serum albumin
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2 pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well.
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counterDisplacement of [35S]-GTPgammaS from CRTH2 receptor (unknown origin) expressed in CHOK1 cell membrane after 1 hr by liquid scintillation counter
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cellsDisplacement of [3H]-PGD2 from human CRTh2 receptor expressed in HEK293 cells
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation countingDisplacement of [3H]-PGD2 from human prostanoid DP2 receptor expressed in human 293T cells by liquid scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 ul. First, 25 ul of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 ul Binding-Buffer, 50 ul of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 ul CRTH2 membrane fragments, reaching a final concentration of 20 ug/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 ul of Microscint-40 (Packard) was added to each well and the retained radioactivity quantified in a Topcount (Packard).
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Concentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptorConcentration required to inhibit PGD-2 (10 nM) stimulated [Ca2+] flux in CHO cells expressing human CRTH2 receptor
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Radioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the reRadioligand Displacement Assay: Binding assay was performed in a final assay volume of 250 μl. First, 25 μl of test compound, previously diluted in Binding-Buffer (Binding-Buffer: 50 mM Tris-Base, 100 mM NaCl, 1 mM EDTA, 0.1% BSA (protease free), 0.01% NaN3, 10 mM MnCl2, pH 7.0) was placed into each well. After addition of 75 μl Binding-Buffer, 50 μl of the radioligand 3H-PGD2 (at 2.5 nM (220.000 dpm/well) from ANAWA ART0662) was added to each well. Binding assay was started by addition of 100 μl CRTH2 membrane fragments, reaching a final concentration of 20 μg/well. For non-specific binding, PGD2 was added to the reaction mixture to 10 mM final concentration. This assay mix was incubated for 90 minutes at room temperature and then filtered through a GF/C filter 96-well plate which was pre-soaked for 3 hours in 0.5% polyethyleneimine (PEI). The filter-wells were washed three times with ice cold Binding-Buffer. Then, 40 μl of Microscint-40 (Packard) was added to each well and the re
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation countingDisplacement of [3H]PGD2 from guinea pig CRTH2 receptor expressed in HEK293 cells after 2 hrs by scintillation counting
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in african green monkey COS7 cells
Displacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]TRQ11238 from human CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Displacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assayDisplacement of [3H]NVP-QAW039 from human DP2 receptor expressed in CHO cell membranes by TopCount scintillation assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from CRTH2 expressed in HEK293 cells after 3 hrs by liquid scintillation countingDisplacement of [3H]PGD2 from CRTH2 expressed in HEK293 cells after 3 hrs by liquid scintillation counting
Displacement of [3H]PGD2 from CRTH2 expressed in HEK293 cells after 3 hrs by liquid scintillation countingDisplacement of [3H]PGD2 from CRTH2 expressed in HEK293 cells after 3 hrs by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Inhibition of PGD2-induced CRTH2 receptor internalization of CD16 negative granulocytes in human whole blood by flow cytometryInhibition of PGD2-induced CRTH2 receptor internalization of CD16 negative granulocytes in human whole blood by flow cytometry
Inhibition of PGD2-induced CRTH2 receptor internalization of CD16 negative granulocytes in human whole blood by flow cytometryInhibition of PGD2-induced CRTH2 receptor internalization of CD16 negative granulocytes in human whole blood by flow cytometry
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from mouse CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysisDisplacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysis
Displacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysisDisplacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Displacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation countingDisplacement of [3H]PGD2 from mouse CRTH2 expressed in human HEK cells by liquid scintillation counting
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in K562 cells after 60 mins by scintillation counting
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
In vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nMIn vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nM
In vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nMIn vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nM
In vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nMIn vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nM
In vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nMIn vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nM
In vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nMIn vitro binding affinity (agonistic) towards human CRTH2 receptor expressed in CHO cells; range 15 to 25 nM
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Displacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrsDisplacement of [3H]-prostaglandin D2 from human CRTh2 receptor expressed in CHO cells after 2 hrs
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysisDisplacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysis
Displacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysisDisplacement of [3H]PGD2 from CRTH2 expressed in CHO cells after 1 hr by beta counting analysis
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.Receptor Binding Assay: A prepared WP was homogenated and a membrane fraction was collected with high-speed centrifugation. A compound of the present invention was added to the plate and [3H]-PGD2 was also added. A platelet membrane, a protein concentration is 2 mg/mL, was added and mixed in the plate, and placed on ice for 2 hours. The reaction solution was transferred to a low protein-adsorptive filter and washed with a wash solution eight times using a cell harvester. After the final washing, water was removed sufficiently, and scintillator was added. DP inhibitory activity was investigated by measuring [3H] by using Micro Beta.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Binding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assayBinding affinity to human CRTH2 receptor expressed in HEK293-EBNA cells by radioligand competition binding assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assayDisplacement of radioligand from human CRTH2 expressed in HEK293 cells by competitive binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation countingDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cell membrane after 120 mins by scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.Radioligand Binding Assay: Radioligand binding was performed using filtration or scintillation proximity assay (SPA) technology. SPA assays were done at room temperature in 10 mM HEPES pH 7.4, 1 mM EDTA containing 2 mM MnCl2 and 16 nM [3H]-PGD2 (PerkinElmer, Waltham, Mass.) (164 Ci mmol-1), in a final volume of 0.05 mL. Competing ligands were diluted in dimethylsulfoxide and added using very low volumes (500 nL). The reaction was initiated by the addition of a mixture of 3.52 ug of membrane protein prepared from a human embryonic kidney (HEK)-hCRTH2 cell line adhered to 140 ug of wheatgerm agglutinin SPA beads (PerkinElmer). Total and non-specific binding were determined in the absence and the presence of a CRTH2 antagonist, respectively. The reaction was routinely conducted for 60 minutes at room temperature followed by centrifugation for 5 minutes at 1000 RPM. The radioactivity was measured with a TopCountNXT (PerkinElmer). Filtration binding assays were done in a similar way with minor differences. The assay volume was 0.20 mL and competing ligands in dimethylsulfoxide were added in 2 uL. [3H]-PGD2 was used at 0.6 nM, and reactions were initiated by the addition of 10 ug of membrane protein. Reactions were terminated by filtration through GF/C filter plates (PerkinElmer) presoaked in 10 mM HEPES. After washing with buffer, plates were dried in a 50° C. oven for 1 h, scintillation cocktail was added and radioactivity was measured. Results determined using the SPA-based assay were similar to those from the filtration binding assay.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uMBinding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uM
Binding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uMBinding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uM
Binding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uMBinding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uM
Binding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uMBinding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uM
Binding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uMBinding affinity towards human CRTH2 receptor expressed in CHO cells; range 25 nM to 8 uM
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human DP2 receptor expressed in CHO cell membranes after 60 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cellsDisplacement of [3H]PGD2 from mouse CRTH2 receptor expressed in HEK293 cells
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Binding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assayBinding affinity to human recombinant CRTH2 receptor by cell based radioligand equilibrium competition assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1") and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, Cat No. 6005040) in SPA incubation buffer with a final volume of 200 uL per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 uL of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 uL of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 uL of the test compound (dissolved in dimethylsulfoxide). The SPA assay mixture is incubated for 3 h at room temperature.
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Displacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation countingDisplacement of [3H]PGD2 from human CRTH2 expressed in chinese hamster CHO cells by liquid scintillation counting
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Binding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assayBinding affinity to human prostaglandin D2 receptor by cell based radioligand displacement assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Displacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assayDisplacement of [3HPGD2 from human CRTH2 receptor expressed in CHO cell membrane after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.Radioligand Binding Assay: The compounds of the present invention inhibit the binding of PGD2 to its receptor CRTH2. The inhibitory activity can be investigated by a radioligand binding assay (Sawyer et al., Br. J. Pharmocol 2002, 137, 1163-72). The radioligand binding assay was performed at room temperature in binding buffer (10 mM HEPES/KOH pH 7.4, mM MnCl2, with protease inhibitor cocktail tablets), containing 1.5 nM [3H]PGD2 (Amersham, 156 Cie/mmol), and 10 ug of hCRTH2 HEK293 (EBNA) cell membrane protein in a final volume of 100 ul in 96 well plates (Corning, USA). Non-specific binding was determined in the presence of 1 uM PGD2 (Cayman, USA). Competing pyrazine sulfonamides were diluted in dimethylsulphoxide so that the total volume of dimethylsulfoxide was kept constant at 1% dimethylsulphoxide (Me2SO). 10 ul of the pyrazine sulfonamides were added. Incubation (60 min at room temperature) was terminated by rapid filtration through 96 wells hydrophobic GF/C Unifilter plates.
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Displacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assayDisplacement of [3H]PGD2 from human CRTH2 receptor expressed in CHO cells after 90 mins by scintillation proximity assay
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23G) and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assayDisplacement of [3H]-PGD2 from human CRTh2 expressed in CHO-K1 cell membranes incubated for 1 hr by SPA binding assay
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Displacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting methodDisplacement of [3H]PGD2 from human CRTh2 expressed in HEK cell membranes after 60 mins by scintillation counting method
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).Radioligand Binding Assay: The CRTH2 receptor binding assay is performed in a scintillation proximity assay (SPA) format with the radioligand [3H]-PGD2 (Perkin Elmer, NET616000MC). CHO-K1-hCRTH2 cell membranes are again homogenized by passing through a single use needle (Terumo, 23Gx1'') and diluted in SPA incubation buffer in suitable concentrations (0.5-10 ug protein/well). The SPA assay is set up in 96 well microtiter plates (Perkin Elmer, CatNo. 6005040) in SPA incubation buffer with a final volume of 200 ul per well and final concentration of 50 mM Tris-HCl, 10 mM MgCl2, 150 mM NaCl, 1 mM EDTA pH 7.4, 0.1% bovine serum albumin). The SPA assay mixture contains 60 ul of the membrane suspension, 80 ul of Wheat Germ Agglutinin coated PVT beads (GE Healthcare, RPNQ-0001, 0.3 mg/well), 40 ul of [3H]-PGD2 diluted in SPA buffer to a final concentration of 1 nM (50 000 dpm) and 20 ul of the test compound (dissolved in dimethylsulfoxid).
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cellsDisplacement of[3H]PGD2 from human CRTH2 receptor expressed in HEK385-7 cells
Displacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptorDisplacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptor
Displacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptorDisplacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptor
Displacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptorDisplacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptor
Displacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptorDisplacement of [<sup>3</sup>H]PGD<sub>2</sub> from human DP<sub>2</sub> receptor
Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from human DP<sub>2</sub> receptors expressed in HEK293 cells.Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from human DP<sub>2</sub> receptors expressed in HEK293 cells.
Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from human DP<sub>2</sub> receptors expressed in HEK293 cells.Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from human DP<sub>2</sub> receptors expressed in HEK293 cells.
Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from rat DP<sub>2</sub> receptors.Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from rat DP<sub>2</sub> receptors.
Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from rat DP<sub>2</sub> receptors.Radioligand ([<sup>3</sup>H]PGD<sub>2</sub>) displacement from rat DP<sub>2</sub> receptors.
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)
Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)Inhibition of [3H]PGD-2 binding to human chemoattractant receptor-homologous molecule expressed on Th2 cells (CRTH2)