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Accession IconGSE61839

The Ubiquitin Ligase Siah2 Regulates Obesity-induced Adipose Tissue Inflammation

Organism Icon Mus musculus
Sample Icon 12 Downloadable Samples
Technology Badge IconIllumina MouseRef-8 v2.0 expression beadchip

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Description
Chronic, low-grade adipose tissue inflammation associated with adipocyte hypertrophy is an important link in the relationship between obesity and insulin resistance. Although ubiquitin ligases are essential regulators of inflammatory processes, the role of these enzymes in metabolically driven adipose tissue inflammation is relatively unexplored. In this study, we found that the ubiquitin ligase Siah2 is a central factor in obesity-related adipose tissue inflammation. When challenged with chronic excess energy intake, Siah2-null mice become obese with enlarged adipocytes, but do not develop obesity-induced insulin resistance. Proinflammatory gene expression is substantially reduced in the Siah2-null epididymal adipose tissue of the obese Siah2KO mice.
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12
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