Abstract
AbstractMany programmed cell death pathways are essential for organogenesis, development, immunity and the maintenance of homeostasis in multicellular organisms. Pyroptosis, a highly proinflammatory form of cell death, is a critical innate immune response to prevent intracellular infection. Pyroptosis is induced upon the activation of proinflammatory caspases within macromolecular signalling platforms called inflammasomes. This article reviews our understanding of pyroptosis induction, the function of inflammatory caspases in pyroptosis execution, and the importance of pyroptosis for pathogen clearance. It also highlights the situations in which extensive pyroptosis may in fact be detrimental to the host, leading to immune cell depletion or cytokine storm. Current efforts to understand the beneficial and pathological roles of pyroptosis bring the promise of new approaches to fight infectious diseases.
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