Brown Adipose Tissue Transplantation Reverses Obesity in Ob/Ob Mice
2015; Oxford University Press; Volume: 156; Issue: 7 Linguagem: Inglês
10.1210/en.2014-1598
ISSN1945-7170
AutoresXiaomeng Liu, Siping Wang, Yilin You, Minghui Meng, Zongji Zheng, Meng Dong, Jun Lin, Qianwei Zhao, Chuanhai Zhang, Xiaoxue Yuan, Tao Hu, Lieqin Liu, Yuanyuan Huang, Lei Zhang, Dehua Wang, Jicheng Zhan, Hyuek Jong Lee, John R. Speakman, Wanzhu Jin,
Tópico(s)Exercise and Physiological Responses
ResumoIncreasing evidence indicates that brown adipose tissue (BAT) transplantation enhances whole-body energy metabolism in a mouse model of diet-induced obesity. However, it remains unclear whether BAT also has such beneficial effects on genetically obese mice. To address this issue, we transplanted BAT from C57/BL6 mice into the dorsal subcutaneous region of age- and sex-matched leptin deficient Ob/Ob mice. Interestingly, BAT transplantation led to a significant reduction of body weight gain with increased oxygen consumption and decreased total body fat mass, resulting in improvement of insulin resistance and liver steatosis. In addition, BAT transplantation increased the level of circulating adiponectin, whereas it reduced the levels of circulating free T3 and T4, which regulate thyroid hormone sensitivity in peripheral tissues. BAT transplantation also increased β3-adrenergic receptor and fatty acid oxidation related gene expression in subcutaneous and epididymal (EP) white adipose tissue. Accordingly, BAT transplantation increased whole-body thermogenesis. Taken together our results demonstrate that BAT transplantation may reduce obesity and its related diseases by activating endogenous BAT.
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