Microsomal prostaglandin E synthase-1 (mPGES-1) converts the COX product PGH into the biologically active PGE Like COX-2, the expression of mPGES-1 is induced in response to pro-inflammatory mediators, including LPS, IL-1β, and TNF-α. CAY10678 is a benzoimidazole that potently inhibits human and rat recombinant mPGES-1 (IC = 0.09 and 0.9 µM, respectively). It has minimal effects on COX-1, COX-2, PGIS, and hematopoietic PGDS at 50 μM but reduces lipocalin-type PGDS activity by 60% at this concentration. CAY10678 dose-dependently blocks PGE synthesis in isolated cells and whole blood treated with LPS or IL-1β. It also dose-dependently reduces PGE synthesis and cell recruitment during inflammation in mice.
CAY10678 is a benzimidazole-based mPGES-1 inhibitor that also inhibits adipophysin PGD synthase (I-PGDS) (5 μM, IR=60 %). CAY10678 reduces PGE2 production and tends to reduce levels of other prostaglandins. CAY10678 effectively inhibits acute inflammation in an air sac model stimulated by Carrageenan in mice[1].
IC50&Target
IC50: 0.9 μM (recombinant human mPGES-1), 0.09 μM (recombinant rat mPGES-1)[1]; lipocalin-type PGD synthase (I-PGDS)[1]
体外研究
CAY10678 (0.64-80 μ M; 24 h) can reduce PGE2 production induced by LPS (10 ng/mL) stimulation in A549 cells, mouse macrophages, and blood [1].
CAY10678 inhibits PGE2 synthesis in a concentration dependent manner, leading to the diversion of PGH2 to the prostacyclin pathway [1]
体内研究
CAY10678 (10-100 mg/kg; ip; single dose) effectively inhibits the overall synthesis of prostaglandins and reduces cell migration in a mouse model of balloon inflammation induced by 1% λ - Carrageenan [1].
Animal Model:
1% Carrageenan stimulated mouse air pouch model
Dosage:
10, 50, 100 mg/kg
Administration:
ip; single dose after modeling: use 3 mL of sterile-filtered air was injected sub-cutaneously into the interscapular region of mice; triggered in the pouch 24 h later by the injection of a 1 ml solution of λ-carrageenan (1%) in saline.
Result:
Had no effect on inflammatory exudate volume but dose-dependently reduced cell migration.
Resulted in a decrease in PGE2 synthesis, it does not affect changes in other prostaglandin levels, but leads to an overall downregulation of prostaglandin synthesis.
分子式
C23H34N4O
分子量
382.54
CAS号
1268709-57-4
运输条件
Room temperature in continental US; may vary elsewhere.
[1]. Leclerc P, et al. Characterization of a human and murine mPGES-1 inhibitor and comparison to mPGES-1 genetic deletion in mouse models of inflammation. Prostaglandins Other Lipid Mediat. 2013 Dec;107:26-34.