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Pyroptosis Induction and Detection

Andreas B den Hartigh, Susan L Fink
Current Protocols in Immunology 2018 July 20, : e52
Pyroptosis is a form of programmed pro-inflammatory cell death that plays a protective role in the host response to infection, but can also promote pathogenic inflammation. Pyroptosis is mediated by the cysteine protease, caspase-1. Caspase-1 cleaves gasdermin D, releasing the N-terminal pore-forming domain, which inserts into the plasma membrane and drives osmotic lysis. Caspase-1 also proteolytically activates the inflammatory cytokines interleukin 1β (IL-1β) and IL-18. This unit describes methods for stimulating pyroptosis and assessing subsequent loss of plasma membrane integrity. We also describe an ELISA to quantify released IL-1β. These methods can be applied to many different types of experiments. © 2018 by John Wiley & Sons, Inc.


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