Inflammasome diversity: exploring novel frontiers in the innate immune response

Trends Immunol. 2024 Apr;45(4):248-258. doi: 10.1016/j.it.2024.02.004. Epub 2024 Mar 21.

Abstract

Pathogens elicit complex mammalian immune responses by activating multiple sensors within inflammasomes, which recognize diverse pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). This simultaneous activation induces the formation of protein complexes referred to as multiple inflammasomes, that orchestrate a spectrum of programmed cell death pathways, including pyroptosis, apoptosis, and necroptosis. This concept is crucial for comprehending the complexity of the innate immune system's response to diverse pathogens and its implications for various diseases. Novel contributions here include emphasizing simultaneous sensor activation by pathogens, proposing the existence of multiple inflammasome complexes, and advocating for further exploration of their structural basis. Understanding these mechanisms may offer insights into disease pathogenesis, paving the way for potential therapeutic interventions targeting inflammasome-mediated immune responses.

Keywords: apoptosis; cytokines; immune response; infection; inflammation; innate immunity; multiple inflammasome sensors; necroptosis; pathogen; pyroptosis.

Publication types

  • Review

MeSH terms

  • Animals
  • Apoptosis
  • Humans
  • Immunity, Innate*
  • Inflammasomes* / metabolism
  • Mammals
  • Pyroptosis

Substances

  • Inflammasomes