Resistin messenger-RNA expression is increased by proinflammatory cytokines in vitro |
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Authors: | Kaser S Kaser A Sandhofer A Ebenbichler C F Tilg H Patsch J R |
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Institution: | Department of Medicine, University Hospital Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria. |
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Abstract: | Resistin is a recently discovered polypeptide that induces insulin resistance in rodents. While in rodents resistin is predominantly expressed in adipocytes, in humans peripheral blood mononuclear cells (PBMC) seem to a be a major source of resistin. In the present study, we show that in human PBMC resistin mRNA expression-determined by fluorescence-based real-time polymerase chain reaction-is strongly increased by the proinflammatory cytokines interleukin (IL)-1, IL-6, tumor necrosis factor alpha (TNF-alpha), and also by lipopolysaccharides (LPS), respectively, while no effect was found by interferon-gamma (IFN-gamma) or leptin. Our results suggest that in humans resistin may be a link in the well-known association between inflammation and insulin resistance. |
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Keywords: | Resistin Insulin resistance Inflammation In vitro PBMC |
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