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Brown adipose tissue (BAT) increases energy expenditure and is an attractive therapeutic target for obesity. 11β-Hydroxysteroid dehydrogenase type 1 (11β-HSD1), an amplifier of local glucocorticoid activity, has been shown to modulate white adipose tissue (WAT) metabolism and function. In this study, we investigated the roles of 11β-HSD1 in regulating BAT function. We observed a significant increase in the expression of BAT-specific genes, including UCP1, Cidea, Cox7a1, and Cox8b, in BVT.2733 (a selective inhibitor of 11β-HSD1)-treated and 11β-HSD1-deficient primary brown adipocytes of mice. By contrast, a remarkable decrease in BAT-specific gene expression was detected in brown adipocytes when 11β-HSD1 was overexpressed, which effect was reversed by BVT.2733 treatment. Consistent with the in vitro results, expression of a range of genes related to brown fat function in high-fat diet-fed mice treated with BVT.2733. Our results indicate that 11β-HSD1 acts as a vital regulator that controls the expression of genes related to brown fat function and as such may become a potential target in preventing obesity.

Citation

Juan Liu, Xiaocen Kong, Long Wang, Hanmei Qi, Wenjuan Di, Xiao Zhang, Lin Wu, Xia Chen, Jing Yu, Juanmin Zha, Shan Lv, Aisen Zhang, Peng Cheng, Miao Hu, Yujie Li, Jianhua Bi, Yan Li, Fang Hu, Yi Zhong, Yong Xu, Guoxian Ding. Essential roles of 11β-HSD1 in regulating brown adipocyte function. Journal of molecular endocrinology. 2013 Feb;50(1):103-13

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PMID: 23197361

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