Pyroptosis: Caspase-11 Unlocks the Gates of Death

Immunity. 2015 Nov 17;43(5):835-7. doi: 10.1016/j.immuni.2015.10.024.

Abstract

How inflammatory caspases trigger pyroptotic cell death is mostly unexplained. In this issue of Immunity, Núñez and colleagues report that caspase-11 cleaves the transmembrane channel pannexin-1, causing an efflux of cellular ATP that promotes a P2X7 receptor-dependent pyroptosis.

Keywords: Pyroptosis; caspase-11; danger signals; inflammation.

Publication types

  • Comment

MeSH terms

  • Animals
  • Caspases / metabolism*
  • Connexins / metabolism*
  • Humans
  • Nerve Tissue Proteins / metabolism*
  • Pyroptosis / physiology*
  • Receptors, Purinergic P2X7 / metabolism*
  • Shock, Septic / metabolism*

Substances

  • Connexins
  • Nerve Tissue Proteins
  • Receptors, Purinergic P2X7
  • Caspases