crid 3

MCC950 sodium (CP-456773 sodium) is a potent and selective inhibitor of the inflammatory vesicle NLRP3 (IC50=7.5 nM in BMDMs; IC50=8.1 nM in HMDMs). MCC950 sodium has no effect on other inflammatory vesicles such as AIM2, NLRC4 or NLRP1.

CP-456773 (MCC950 (CP-456773) and CRID3) is an effective and specific cytokine release inhibitor and NLRP3 inflammasome inhibitor. CP-456773 inhibits IL-1β secretion and caspase 1 processing. MCC950 blocked canonical and noncanonical NLRP3 activation at nanomolar concentrations. MCC950 specifically inhibited activation of NLRP3 but not the AIM2, NLRC4 or NLRP1 inflammasomes. MCC950 reduced IL-1β production in vivo and attenuated the severity of experimental autoimmune encephalomyelitis (EAE), a disease model of multiple sclerosis.