LIGHT/TNFSF14 enhances adipose tissue inflammatory responses through its interaction with HVEM

FEBS Lett. 2011 Feb 4;585(3):579-84. doi: 10.1016/j.febslet.2011.01.011. Epub 2011 Jan 12.

Abstract

Obesity-induced adipose tissue inflammation is characterized by increased macrophage infiltration and cytokine production, and is associated with metabolic disorders. LIGHT/TNFSF14, a member of the TNF superfamily, plays a role in the development of various inflammatory diseases. The purpose of this study was to examine the involvement of soluble LIGHT (sLIGHT) in obesity-induced adipose tissue inflammatory responses. LIGHT gene expression on macrophages/adipocytes was upregulated by treatment with obesity-related factors. sLIGHT displayed chemotactic activity for macrophages and T cells, and enhanced inflammatory cytokine release from macrophages, adipocytes, and adipose tissue-derived SVF cells. The sLIGHT-induced inflammatory responses were blunted by neutralizing anti-HVEM antibody or knockout of HVEM, a receptor for sLIGHT. These findings indicate that sLIGHT enhances adipose tissue inflammatory responses through its interaction with HVEM.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adipocytes / metabolism
  • Adipose Tissue, White / cytology
  • Adipose Tissue, White / metabolism*
  • Animals
  • Cell Line
  • Cells, Cultured
  • Chemotaxis
  • Culture Media, Conditioned
  • Cytokines / metabolism*
  • Dietary Fats / administration & dosage
  • Gene Expression Regulation
  • Inflammation Mediators / metabolism*
  • Macrophages / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Obesity / metabolism*
  • Oxidative Stress
  • RNA, Messenger / metabolism
  • Receptors, Tumor Necrosis Factor, Member 14 / antagonists & inhibitors
  • Receptors, Tumor Necrosis Factor, Member 14 / genetics
  • Receptors, Tumor Necrosis Factor, Member 14 / metabolism*
  • Stromal Cells / metabolism
  • Tumor Necrosis Factor Ligand Superfamily Member 14 / genetics
  • Tumor Necrosis Factor Ligand Superfamily Member 14 / metabolism*

Substances

  • Culture Media, Conditioned
  • Cytokines
  • Dietary Fats
  • Inflammation Mediators
  • RNA, Messenger
  • Receptors, Tumor Necrosis Factor, Member 14
  • Tnfrsf14 protein, mouse
  • Tnfsf14 protein, mouse
  • Tumor Necrosis Factor Ligand Superfamily Member 14