Adipocyte YTH N(6)-methyladenosine RNA-binding protein 1 protects against obesity by promoting white adipose tissue beiging in male mice

Sujun Yan, Xiaoling Zhou, Canlan Wu, Yunyi Gao, Yu Qian, Jingyu Hou, Renxiang Xie, Bing Han, Zhanghui Chen (), Saisai Wei () and Xiangwei Gao ()
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Sujun Yan: Institute of Environmental Medicine, Zhejiang University School of Medicine
Xiaoling Zhou: Institute of Environmental Medicine, Zhejiang University School of Medicine
Canlan Wu: Institute of Environmental Medicine, Zhejiang University School of Medicine
Yunyi Gao: Institute of Environmental Medicine, Zhejiang University School of Medicine
Yu Qian: Institute of Environmental Medicine, Zhejiang University School of Medicine
Jingyu Hou: Institute of Environmental Medicine, Zhejiang University School of Medicine
Renxiang Xie: Institute of Environmental Medicine, Zhejiang University School of Medicine
Bing Han: Institute of Environmental Medicine, Zhejiang University School of Medicine
Zhanghui Chen: Zhanjiang Central Hospital, Guangdong Medical University
Saisai Wei: Institute of Environmental Medicine, Zhejiang University School of Medicine
Xiangwei Gao: Institute of Environmental Medicine, Zhejiang University School of Medicine

Nature Communications, 2023, vol. 14, issue 1, 1-13

Abstract: Abstract Obesity, one of the most serious public health issues, is caused by the imbalance of energy intake and energy expenditure. N(6)-methyladenosine (m6A) RNA modification has been recently identified as a key regulator of obesity, while the detailed mechanism is elusive. Here, we find that YTH RNA binding protein 1 (YTHDF1), an m6A reader, acts as an essential regulator of white adipose tissue metabolism. The expression of YTHDF1 decreases in adipose tissue of male mice fed a high-fat diet. Adipocyte-specific Ythdf1 deficiency exacerbates obesity-induced metabolic defects and inhibits beiging of inguinal white adipose tissue (iWAT) in male mice. By contrast, male mice with WAT-specific YTHDF1 overexpression are resistant to obesity and shows promotion of beiging. Mechanistically, YTHDF1 regulates the translation of diverse m6A-modified mRNAs. In particular, YTHDF1 facilitates the translation of bone morphogenetic protein 8b (Bmp8b) in an m6A-dependent manner to induce the beiging process. Here, we show that YTHDF1 may be an potential therapeutic target for the management of obesity-associated diseases.

Date: 2023
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DOI: 10.1038/s41467-023-37100-z

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