Heat shock protein 60 induces inflammatory mediators in mouse adipocytes

FEBS Lett. 2008 Aug 6;582(18):2731-6. doi: 10.1016/j.febslet.2008.07.002. Epub 2008 Jul 11.

Abstract

Adipocytes represent an important cellular source of inflammatory mediators. However, the signals for the induction of proinflammatory adipocyte activities are largely unknown. Here, we demonstrate that heat shock protein (Hsp) 60, a potent stimulator of innate immunity, induces the release of the inflammatory mediators interleukin-6, CXCL1 and monocyte chemoattractant protein-1 in a time- and concentration-dependent manner from cells of the adipocyte line 3T3-L1 and from adipocytes of obese mice. These results identify Hsp60 as an important regulator of adipocyte functions which contribute to the development of inflammatory processes as observed in diabetes and diabetes-associated complications.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3T3 Cells
  • Adipocytes / drug effects
  • Adipocytes / immunology*
  • Animals
  • Chaperonin 60 / pharmacology
  • Chaperonin 60 / physiology*
  • Chemokine CCL2 / metabolism
  • Chemokine CXCL1 / metabolism
  • Inflammation Mediators / metabolism*
  • Interleukin-6 / metabolism
  • Lipopolysaccharides / pharmacology
  • Mice
  • Mice, Inbred Strains

Substances

  • Chaperonin 60
  • Chemokine CCL2
  • Chemokine CXCL1
  • Inflammation Mediators
  • Interleukin-6
  • Lipopolysaccharides