Journal
GENE THERAPY
Volume 24, Issue 1, Pages 60-66Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/gt.2016.76
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Funding
- NIH [RO1HL098295]
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The worldwide prevalence of obesity is increasing, raising health concerns regarding obesity-related complications. Chronic inflammation has been characterized as a major contributor to the development of obesity and obesity-associated metabolic disorders. The purpose of the current study is to assess whether the overexpression of interferon beta (IFN beta 1), an immune modulating cytokine, will attenuate high-fat diet-induced adipose inflammation and protect animals against obesity development. Using hydrodynamic gene transfer to elevate and sustain blood concentration of IMP in mice fed a high-fat diet, we showed that the overexpression of Ifn beta 1 gene markedly suppressed immune cell infiltration into adipose tissue, and attenuated production of pro-inflammatory cytokines. Systemically, IFN beta 1 blocked adipose tissue expansion and body weight gain, independent of food intake. Possible browning of white adipose tissue might also contribute to blockade of weight gain. More importantly, IFN beta 1 improved insulin sensitivity and glucose homeostasis. These results suggest that targeting inflammation represents a practical strategy to block the development of obesity and its related pathologies. In addition, IFN beta 1-based therapies have promising potential for clinical applications for the prevention and treatment of various inflammation-driven pathologies.
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