Macrophage pyroptosis pathway

The macrophage pyroptosis pathway refers to the cascade of molecular events leading to pro-inflammatory cell death (pyroptosis) in macrophages, typically triggered by recognition of pathogen-associated (PAMPs) or damage-associated (DAMPs) molecular patterns. The process involves activation of pattern recognition receptors (notably NLRP3, NLRC4, AIM2), formation of the inflammasome complex, activation of caspase-1 (canonical) or caspase-4/5/11 (non-canonical), cleavage of gasdermin D (GSDMD), and formation of membrane pores, resulting in cell lysis and release of inflammatory cytokines like IL-1β and IL-18. Pyroptosis plays a critical role in host defense, yet excessive or dysregulated macrophage pyroptosis contributes to inflammatory and infectious diseases, as well as tissue damage in conditions such as acute lung injury and sepsis[5][4][1][3][6]. Note: This entry is *not* for a single molecular target, but for a complex multi-step cell signaling pathway involving multiple proteins (such as NLRP3, caspase-1, GSDMD, etc.)[5][4][1][3][6]. The most appropriate use is as a descriptor for the pathway; if a single target is needed, refer to constituents such as "NLRP3", "Caspase-1", or "Gasdermin D".

Other names

Pyroptotic pathway in macrophagesMacrophage inflammasome-dependent cell death pathway

Inhibition of inflammasome assembly; Inhibition of caspase-1 or caspase-4/5/11; Inhibition/blockade of gasdermin D cleavage; Blockade of IL-1β/IL-18 signaling