Protection from obesity and diabetes by blockade of TGF-β/Smad3 signaling.
Protection from obesity and diabetes by blockade of TGF-β/Smad3 signaling.
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DOI:
10.1016/j.cmet.2011.04.013
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发表时间:
2011-07-06
期刊:
影响因子:
29
通讯作者:
Rane SG
中科院分区:
文献类型:
--
作者:
Yadav H;Quijano C;Kamaraju AK;Gavrilova O;Malek R;Chen W;Zerfas P;Zhigang D;Wright EC;Stuelten C;Sun P;Lonning S;Skarulis M;Sumner AE;Finkel T;Rane SG
Imbalances in glucose and energy homeostasis are at the core of the worldwide epidemic of obesity and diabetes. Here, we illustrate an important role of the TGF-β/Smad3 signaling pathway in regulating glucose and energy homeostasis. Smad3 deficient mice are protected from diet-induced obesity and diabetes. Interestingly, the metabolic protection is accompanied by Smad3−/− white adipose tissue acquiring the bioenergetic and gene expression profile of brown fat/skeletal muscle. Smad3−/− adipocytes demonstrate a marked increase in mitochondrial biogenesis, with a corresponding increase in basal respiration, and Smad3 acts as a repressor of PGC-1α expression. We observe significant correlation between TGF-β1 levels and adiposity in rodents and humans. Further, systemic blockade of TGF-β1 signaling protects mice from obesity, diabetes and hepatic steatosis. Together, these results demonstrate that TGF-β signaling regulates glucose tolerance and energy homeostasis and suggest that modulation of TGF-β1 activity might be an effective treatment strategy for obesity and diabetes.
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影响因子:
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作者:
Alessi, MC;Bastelica, D;Juhan-Vague, I
通讯作者:
Juhan-Vague, I
影响因子:
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DOI:
10.1097/01.asn.0000042168.43665.9b
发表时间:
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通讯作者:
Welsh, JoEllen