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Resistin gene expression in human adipocytes is not related to insulin resistance

Authors

  • J. Janke
  • S. Engeli
  • K. Gorzelniak
  • F.C. Luft
  • A.M. Sharma

Journal

  • Obesity Research

Citation

  • Obes Res 10 (1): 1-5

Abstract

  • Objectives: Obesity is an important risk factor for the development of insulin resistance and type 2 diabetes. Recently, a newly described circulating hormone resistin, which is expressed primarily in adipocytes, has been shown to antagonize insulin action in mice. Resistin, therefore, has been suggested to play a role in the pathogenesis of insulin resistance. Research Methods and Procedures: We studied the expression of the resistin gene in primary cultured human adipocytes and preadipocytes. We also examined resistin gene expression in subcutaneous abdominal adipocytes in women (n = 24) over a wide range of body weight and insulin sensitivity. Results: Whereas resistin gene expression was barely detectable in mature adipocytes, it was highly expressed in preadipocytes. Adipogenic differentiation of preadipocytes was associated with a time-dependent down-regulation of resistin gene expression. There was no relationship between body weight, insulin sensitivity, or other metabolic parameters and adipocyte resistin gene expression in the clinical study. Discussion: Together these findings do not support an important role of adipose-tissue resistin gene expression in human insulin resistance.


DOI

doi:10.1038/oby.2002.1