mPGES-1 knock-out mice are resistant to cancer-induced anorexia despite the absence of central mPGES-1 up-regulation in wild-type anorexic mice

J Neuroimmunol. 2008 Aug 13;199(1-2):104-14. doi: 10.1016/j.jneuroim.2008.05.012. Epub 2008 Jul 7.

Abstract

Anorexia-cachexia syndrome is a very common symptom observed in individuals affected by chronic inflammatory diseases. The present study was designed to address the possible involvement of the inducible microsomal prostaglandin E synthase-1 (mPGES-1) in the hypopaghia observed during these pathological states. To this end, we used a model of cancer-induced anorexia and we report here that despite the absence of up-regulation of the mPGES-1 enzyme within the brain during anorexia-cachexia syndrome, mPGES-1 knock-out mice exhibit resistance to tumor-induced anorexia and maintain their body mass.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anorexia / enzymology*
  • Anorexia / etiology
  • Blotting, Western
  • Brain / enzymology*
  • Brain / immunology
  • Cachexia / etiology
  • Cytokines / biosynthesis
  • Inflammation / immunology
  • Inflammation / metabolism
  • Inflammation / physiopathology
  • Intramolecular Oxidoreductases / genetics
  • Intramolecular Oxidoreductases / metabolism*
  • Male
  • Mice
  • Mice, Knockout
  • Neoplasms / complications*
  • Prostaglandin-E Synthases
  • Reverse Transcriptase Polymerase Chain Reaction
  • Up-Regulation

Substances

  • Cytokines
  • Intramolecular Oxidoreductases
  • Prostaglandin-E Synthases
  • Ptges protein, mouse