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RISS 인기검색어
- 검색키워드
- 저자 : Tsougranis, George H. (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
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Dagdeviren, Sezin,Jung, Dae Young,Lee, Eunjung,Friedline, Randall H.,Noh, Hye Lim,Kim, Jong Hun,Patel, Payal R.,Tsitsilianos, Nicholas,Tsitsilianos, Andrew V.,Tran, Duy A.,Tsougranis, George H.,Kearns American Society for Microbiology 2016 Molecular and cellular biology Vol.36 No.23
<P>Skeletal muscle insulin resistance is a major characteristic of obesity and type 2 diabetes. Although obesity-mediated inflammation is causally associated with insulin resistance, the underlying mechanism is unclear. Here, we examined the effects of chronic obesity in mice with muscle-specific overexpression of interleukin-10 (M-IL10). After 16 weeks of a high-fat diet (HFD), M-IL10 mice became markedly obese but showed improved insulin action compared to that of wild-type mice, which was largely due to increased glucose metabolism and reduced inflammation in skeletal muscle. Since leptin regulates inflammation, the beneficial effects of interleukin-10 (IL-10) were further examined in leptin-deficient ob/ob mice. Muscle-specific overexpression of IL-10 in ob/ob mice (MCK-IL10(ob/ob)) did not affect spontaneous obesity, but MCK-IL10(ob/ob) mice showed increased glucose turnover compared to that in ob/ob mice. Last, mice with muscle-specific ablation of IL-10 receptor (M-IL10R(-/-)) were generated to determine whether IL-10 signaling in skeletal muscle is involved in IL-10 effects on glucose metabolism. After an HFD, M-IL10R(-/-) mice developed insulin resistance with reduced glucose metabolism compared to that in wild-type mice. Overall, these results demonstrate IL-10 effects to attenuate obesity-mediated inflammation and improve insulin sensitivity in skeletal muscle, and our findings implicate a potential therapeutic role of anti-inflammatory cytokines in treating insulin resistance and type 2 diabetes.</P>
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