Abstract:NAIP5/NLRC4 inflammasome activation by cytosolic flagellin results in caspase-1-mediated processing and secretion of IL-1β/IL-18 and pyroptosis, an inflammatory cell death pathway. Here, we found that although NLRC4, ASC and caspase-1 are required for IL-1β secretion in response to cytosolic flagellin, cell death nevertheless occurs in the absence of these molecules. Cytosolic flagellin-induced inflammasome-independent cell death was accompanied by IL-1α secretion and was temporally correlated with the restric… Show more
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