NLR family pyrin domain-containing 3 inflammasome complex (NLRP3 inflammasome)

The NLRP3 inflammasome complex is a multiprotein innate immune sensor complex that detects a wide spectrum of pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). Upon activation, NLRP3 oligomerizes and recruits the adaptor ASC ("apoptosis-associated speck-like protein containing a caspase recruitment domain"), which in turn recruits caspase-1. Activated caspase-1 processes pro-inflammatory cytokines IL-1β and IL-18 and cleaves gasdermin D, leading to cytokine release and a rapid lytic cell death called pyroptosis. The complex plays a pivotal role in triggering and amplifying immune and inflammatory responses and is a key driver in many inflammatory, infectious, and degenerative diseases. Its broad responsiveness to numerous triggers and its central role in immune homeostasis make it a critical molecule for therapeutic intervention.

Other names

NLRP3 inflammasomeCryopyrin inflammasomeNALP3 inflammasomeNOD-like receptor (NLR) family pyrin domain-containing 3 inflammasome complex

Direct inhibition of NLRP3 ATPase activity; Prevention of NLRP3 oligomerization and inflammasome assembly; Suppression of ASC recruitment and filament formation; Downregulation or neutralization of IL-1β/IL-18 signaling downstream; Modulation of post-translational modifications (e.g., deubiquitination, phosphorylation) that regulate activation