产品描述:
TASP0277308 is a sphingosine-1-phosphate receptor 1 (S1P1) antagonist (IC50 = 4.2 nM).{20339} It is selective for S1P1 over S1P3, S1P4, and S1P5 (IC50s = >10,000, >10,000, and 8,756 nM, respectively). TASP0277308 inhibits S1P-induced [35S]GTPγS binding and forskolin-induced cAMP production in HEK293 cells expressing human S1P1 (IC50s = 7.8 and 4.3 nM, respectively). It inhibits S1P-induced migration of CHO cells expressing human S1P1 (IC50 = 18 nM). In vivo, TASP0277308 (100 mg/kg) induces lymphopenia in mice. It reduces bone erosion in a mouse model of collagen-induced arthritis. Intrathecal administration of TASP0277308 (3 or 10 nmol/animal) reduces flinching and guarding behaviors in a mouse model of cancer-induced bone pain.{72375}