Cell death during sepsis: integration of disintegration in the inflammatory response to overwhelming infection

Apoptosis. 2009 Apr;14(4):509-21. doi: 10.1007/s10495-009-0320-3.

Abstract

Sepsis is a major health problem and a leading cause of death worldwide. In recent years, a crescendo of attention has been directed to the mechanisms of cell death that develop during this disease, since these are viewed as important contributors to the proinflammatory and anti-inflammatory responses associated with poor outcome. Here we discuss mechanisms of cell death evident severe bacterial infection and sepsis including necrosis, apoptosis, pyroptosis, and extracellular trap-associated neutrophil death, with a particular emphasis on lymphocyte apoptosis and its contribution to the immunosuppressed phenotype of late sepsis. Individual bacterial pathogens express virulence factors that modulate cell death pathways and influence the sepsis phenotype. A greater knowledge of cell death pathways in sepsis informs the potential for future therapies designed to ameliorate immune dysfunction in this syndrome.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Apoptosis / immunology*
  • Apoptosis / physiology
  • Bacterial Infections / immunology*
  • Bacterial Infections / metabolism
  • Cell Death / immunology
  • Humans
  • Inflammation / immunology*
  • Inflammation / physiopathology
  • Models, Immunological
  • Sepsis / immunology*
  • Sepsis / metabolism
  • Sepsis / physiopathology