Description: ONO-AE3-208 is an EP4 receptor antagonist with a Ki of 1.3 nM, exhibiting less potent activity against EP3, FP, and TP receptors (Ki values of 30, 790, and 2,400 nM, respectively), while showing no effect on other prostanoid receptors. In wild type mice, treatment with ONO-AE3-208, in conjunction with...

ONO-AE3-208 is an antagonist of the EP4 receptor (Ki = 1.3 nM) that less potently affects EP3, FP, and TP receptors (Kis = 30, 790, and 2,400 nM, respectively) and is without effect on other prostanoid receptors. In wild type mice, it mimics deletion of EP4 by producing severe colitis, with epithelial loss, crypt...