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. 2020 Dec 7;11:609441. doi: 10.3389/fimmu.2020.609441

Figure 2.

Figure 2

NLRP3 inflammasome activation following non-canonical inflammasome activation. The non-canonical inflammasome pathway is mediated by caspase-11 in mouse cell and caspase-4/caspase-5 in a human cell in response to cytoplasmic bacterial lipopolysaccharide (LPS). Caspase-4/5/11 cleaves GSDMD to initiate pyroptosis, thus leads to NLRP3 inflammasome activation. GSDMD and P2X7 receptor/Pannexin-1 have been proposed to mediate potassium efflux, which underlies the mechanism of NLRP3 inflammasome activation following non-canonical inflammasome.