I-287

I-287 is a potent, selective, orally active inhibitor of PAR2, negative PAR2 allosteric modulator, inhibits PAR2-mediated activation of Gq and G12/13 but not Gi/o proteins (IC50=45-390 nM);I-287 is a negative allosteric modulator (NAM) and not an orthosteric competitive antagonist of hPAR2.I-287 inhibits PAR2-mediated activation of DAG/Ca2+/PKC and RhoA/SRF-RE, as well as FAK and ERK1/2 signaling pathways, shows no effect on PAR2-mediated recruitment of βarrestin2 and receptor internalization.I-287 inhibits PAR2-induced secretion of IL-8 cytokine in vitro and reduces Freund's adjuvant (CFA)-induced paw edema model in mice.

1. Avet C, et al. Commun Biol. 2020 Nov 27;3(1):719.