Inflammasome activation by nucleic acids and nucleosomes in sterile inflammation… or is it sterile?

FEBS J. 2017 Aug;284(15):2363-2374. doi: 10.1111/febs.14076. Epub 2017 Apr 26.

Abstract

Inflammasomes are multiprotein complexes that form in the cytoplasm in response to cellular damage and cytosolic pathogen-associated molecules during infection. These complexes play important roles in initiating innate and adaptive immune responses to infectious disease. In addition, inflammasomes are now recognized as important mediators of sterile inflammation in various autoimmune and autoinflammatory diseases. Interestingly, microbiota and infection play critical roles in the development of 'sterile inflammation'. Herein, we highlight recent advances in our understanding of the role for inflammasomes in nucleic acid-, nucleosome-, and histone-driven sterile inflammation and discuss knowledge gaps and areas of potential future research.

Keywords: AIM2; Caspase-1; IL-18; IL-1β; NLRP3; autoimmunity; autoinflammation; immunopathology; inflammasome; inflammation.

Publication types

  • Review

MeSH terms

  • Adaptive Immunity*
  • Animals
  • Autoimmune Diseases / immunology
  • Autoimmune Diseases / metabolism
  • Autoimmune Diseases / microbiology
  • DNA Damage*
  • DNA, Bacterial / metabolism
  • DNA, Mitochondrial / metabolism
  • Histones / metabolism
  • Humans
  • Immunity, Innate*
  • Infections / immunology
  • Infections / metabolism
  • Infections / microbiology
  • Inflammasomes / immunology
  • Inflammasomes / metabolism*
  • Microbiota
  • Models, Immunological*
  • Nucleosomes / immunology
  • Nucleosomes / metabolism*
  • Nucleosomes / microbiology
  • RNA, Bacterial / metabolism

Substances

  • DNA, Bacterial
  • DNA, Mitochondrial
  • Histones
  • Inflammasomes
  • Nucleosomes
  • RNA, Bacterial