Inducing Pyroptosis Via the Pyrin Inflammasome

Methods Mol Biol. 2023:2641:37-47. doi: 10.1007/978-1-0716-3040-2_4.

Abstract

The pyrin inflammasome detects bacterial toxins and effectors that inhibit RhoA GTPases and triggers inflammatory cytokine release and a fast cell death termed pyroptosis. In addition, various endogenous molecules, drugs, synthetic molecules, or mutations can trigger pyrin inflammasome activation. The pyrin protein differs between humans and mice, and the repertoire of pyrin activators is also species-specific. Here, we present the various pyrin inflammasome activators, inhibitors, the kinetics of pyrin activation in response to the various activators, and their species specificity. In addition, we present different methods to monitor pyrin-mediated pyroptosis.

Keywords: Colchicine; IL-1 β; MEFV; Pregnanolone; Real-time cell death assay; Statin; TcdA; TcdB; Toxin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bacterial Toxins* / genetics
  • Cell Death
  • Humans
  • Inflammasomes* / metabolism
  • Mice
  • NLR Family, Pyrin Domain-Containing 3 Protein
  • Pyrin
  • Pyroptosis

Substances

  • Inflammasomes
  • Pyrin
  • Bacterial Toxins
  • NLR Family, Pyrin Domain-Containing 3 Protein