TM30089，25MG，SML2743-25MG，Sigma

Biochem/physiol Actions

Orally active, potent and selective prostaglandin D2 receptor DP2 (CRTH2) antagonist without affinity or activity toward DP1 (PTGDR) and TP (TBXA2R).
TM30089 is a ramatroban analog and an orally active, high-affinity, potent and selective prostaglandin D2 receptor 2 (DP2; CRTH2) antagonist (K_i = 0.6 nM/hDP2 against 1.2 nM PGD2; K_i = 1.2 μM/hDP1 against 0.5 nM PGD2, >10 μM/hTP against 5 nM SQ29548) that blocks PGD2-induced responses in hDP2 transfectants (IP1/βarr IC₅₀ = 1.2/3.0 nM) and exhibits in vivo efficacy in a murine model of renal tubulointerstitial fibrosis (20 mg/kg b.i.d. p.o., starting 4 days before or 3 days after unilateral ureteral obstruction/UUO).