AH22921

AH22921 is an EP4 prostaglandin receptor antagonist with the activity of antagonizing the activation of adenylate cyclase by prostaglandins in CHO cells. AH22921 can shift the PGE2 concentration-response curve to the right in CHO cells. It is a non-competitive antagonist that is selective for EP4 receptors and has an antagonistic effect on EP4 receptors in CHO cells, but does not affect the PGE2 concentration-response curve in NPE cells containing EP2 receptors.