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Endothelial barrier dysfunction in septic shock.

S M Opal1, T van der Poll2

  • 1Infectious Disease Division, Alpert Medical School of Brown University, Pawtucket, RI, USA.

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|November 25, 2014
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Summary
This summary is machine-generated.

The endothelium, a vital barrier, plays an active role in sepsis, not a passive one. Understanding endothelial dysfunction in sepsis is key to developing new barrier repair treatments.

Keywords:
endothelial barrierendothelial junctionsprotease-activated receptorssepsissepsis-induced immunosuppressionseptic shock

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Area of Science:

  • Vascular Biology
  • Immunology
  • Critical Care Medicine

Background:

  • The endothelium forms a selective barrier regulating blood-tissue exchange.
  • Endothelial cells actively participate in the inflammatory response during sepsis.
  • Impaired endothelial barrier function is a hallmark of septic shock, contributing to poor outcomes.

Purpose of the Study:

  • To review recent advances in understanding endothelial function and dysfunction in sepsis.
  • To highlight signaling pathways regulating endothelial cells in septic states.
  • To discuss novel endothelial barrier repair strategies for sepsis treatment.

Main Methods:

  • Review of current scientific literature on endothelial biology in sepsis.
  • Analysis of signaling events governing endothelial function and dysfunction.
  • Identification of therapeutic targets for endothelial barrier repair.

Main Results:

  • Endothelial cells are dynamically involved with inflammatory mediators and immune systems in sepsis.
  • Endothelial barrier integrity is compromised in septic shock.
  • Several molecular targets and pathways are implicated in endothelial dysfunction.

Conclusions:

  • The endothelium is a critical, active player in sepsis pathogenesis.
  • Targeting endothelial dysfunction offers promising therapeutic avenues for sepsis.
  • Modulating specific pathways (e.g., C5a, HMGB1, VEGFR2) may restore endothelial barrier function.