Transcriptomics

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Inflammation causes insulin resistance via IRF3-mediated reduction in FAHFA levels


ABSTRACT: Obesity-induced inflammation metabolic dysfunction, but the mechanisms remain elusive. Here we showed that the innate immune factor IRF3 is a direct transcriptional regulator of glucose homeostasis through induction of endogenous FAHFA hydrolase Aig1 in adipocytes. Adipocyte-specific knockout IRF3 protects mice against high-fat diet-induced insulin resistance, whereas overexpression of IRF3 in adipocytes promotes insulin resistance on a high-fat diet. Furthermore, pharmacological inhibition of AIG1 reversed obesity-induced insulin resistance and restored glucose homeostasis in the setting of adipocyte IRF3 overexpression. We therefore, identify the adipocyte IRF3/AIG1 axis as a crucial link between obesity-induced inflammation and insulin resistance and suggest an approach for limiting the metabolic dysfunction accompanying obesity.

ORGANISM(S): Mus musculus

PROVIDER: GSE213048 | GEO | 2024/02/09

REPOSITORIES: GEO

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