Interleukin-1beta is a positive regulator of TIARP/STAMP2 gene and protein expression in adipocytes in vitro

FEBS Lett. 2009 Apr 2;583(7):1196-200. doi: 10.1016/j.febslet.2009.03.015. Epub 2009 Mar 14.

Abstract

The impact of interleukin (IL)-1beta on tumor necrosis factor alpha-induced adipose-related protein (TIARP)/six-transmembrane protein of prostate 2 (STAMP2) was determined in adipocytes. TIARP/STAMP2 mRNA synthesis was significantly stimulated by IL-1beta in a dose- and time-dependent fashion in 3T3-L1 adipocytes. Signaling studies suggested that janus kinase 2, nuclear factor kappaB, and p44/42 mitogen-activated protein kinase are involved in IL-1beta-induced TIARP/STAMP2 mRNA expression. Furthermore, IL-1beta, TNFalpha, and IL-6 showed synergistic stimulatory effects on TIARP/STAMP2 gene expression. Moreover, both TIARP/STAMP2 mRNA synthesis and protein expression were induced by IL-1beta in fully differentiated human mesenchymal stem cell-derived adipocytes (hMSC-Ad). Taken together, TIARP/STAMP2 is highly upregulated in 3T3-L1 cells and hMSC-Ad by IL-1beta and might, therefore, modulate proinflammatory and insulin resistance-inducing effects of IL-1beta.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 3T3-L1 Cells
  • Adipocytes / cytology
  • Adipocytes / metabolism*
  • Animals
  • Cell Differentiation / drug effects
  • Cell Differentiation / physiology
  • Dose-Response Relationship, Drug
  • Drug Synergism
  • Gene Expression Regulation / drug effects*
  • Gene Expression Regulation / physiology
  • Humans
  • Insulin Resistance / physiology
  • Interleukin-1beta / agonists
  • Interleukin-1beta / pharmacology*
  • Interleukin-6 / agonists
  • Interleukin-6 / pharmacology
  • Janus Kinase 2 / metabolism
  • Membrane Proteins / biosynthesis*
  • Mesenchymal Stem Cells / cytology
  • Mesenchymal Stem Cells / metabolism
  • Mice
  • Mitogen-Activated Protein Kinase 1 / metabolism
  • NF-kappa B / metabolism
  • Oxidoreductases / biosynthesis*
  • RNA, Messenger / biosynthesis
  • Tumor Necrosis Factor-alpha / agonists
  • Tumor Necrosis Factor-alpha / pharmacology

Substances

  • IL6 protein, human
  • Interleukin-1beta
  • Interleukin-6
  • Membrane Proteins
  • NF-kappa B
  • RNA, Messenger
  • Tiarp protein, mouse
  • Tumor Necrosis Factor-alpha
  • Oxidoreductases
  • STEAP4 protein, human
  • JAK2 protein, human
  • Jak2 protein, mouse
  • Janus Kinase 2
  • Mitogen-Activated Protein Kinase 1