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The NLRP3 inflammasome senses a range of cellular disturbances, although no consensus exists regarding a common mechanism. Canonical NLRP3 activation is blocked by high extracellular K+, regardless of the activating signal. We report here that canonical NLRP3 activation leads to Ca2+ flux and increased calpain activity. Activated calpain releases a pool of Caspase-1 sequestered by the cytoskeleton...
Peptides presented by MHC class I molecules are mostly derived from proteins synthesized by the antigen‐presenting cell itself, while peptides presented by MHC class II molecules are predominantly from materials acquired by endocytosis. External antigens can also be presented by MHC class I molecules in a process referred to as cross‐presentation. Here, we report that mouse dendritic cell (DC) engagement...
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