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. 2022 Jul 14;19:183. doi: 10.1186/s12974-022-02547-2

Fig. 2.

Fig. 2

Inflammasome-independent pathway of pyroptosis. YopJ expressed during Yersinia infection inhibits TGF-β-activated kinase 1 (TAK1) and induces caspase-8-related cleavage of GSDMD and GSDMC. Neutrophil elastase, porcine epidemic diarrhea virus, and cathepsin G cleave GSDMD. Caspase-8 acts upstream of caspase-3 through the Bax/Bak signaling, while caspase-3 mediates GSDME cleavage. GZMA and GZMB activate GSDMB and GSDME, respectively. Streptococcal pyrogenic exotoxin B (SpeB) could cleave GSDMA and trigger pyroptosis