2. Academic Validation
  3. Endothelial TET2 regulates the white adipose browning and metabolism via fatty acid oxidation in obesity

Endothelial TET2 regulates the white adipose browning and metabolism via fatty acid oxidation in obesity

  • Redox Biol. 2024 Feb:69:103013. doi: 10.1016/j.redox.2023.103013.
Yefei Shi 1,  Xinru Huang 2,  Yanxi Zeng 1,  Ming Zhai 1,  Hongyun Yao 2,  Chang Liu 3,  Bo Li 1,  Shiyu Gong 1,  Qing Yu 1,  Jianhui Zhuang 1,  Yifan Zhao 1,  Liesheng Lu 4,  Bo Zhou 5,  Weixia Jian 6,  Wenhui Peng 7
Affiliations

Affiliations

  • 1 Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
  • 2 Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
  • 3 Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
  • 4 Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
  • 5 Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
  • 6 Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China. Electronic address: [email protected].
  • 7 Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China. Electronic address: [email protected].
PMID: 38168657 DOI: 10.1016/j.redox.2023.103013
Abstract

Obesity is a complex metabolic disorder, manifesting as excessive accumulation of body fat. Ten-Eleven Translocation-2 (TET2) has garnered significant attention in the context of obesity due to its crucial role in epigenetic regulation and metabolic homeostasis. In this study, we aimed to investigate the effect of endothelial TET2 on obesity and explore the potential mechanism. We generated endothelial cell-specific TET2 deficiency mice and investigated endothelial TET2 using transcriptomic and epigenomic analyses. We determined the downregulation of endothelial TET2 in white adipose tissues. Furthermore, we identified that endothelial TET2 loss aggravated high-fat diet-induced obesity by inhibiting vascularization and thus suppressing white adipose tissue browning. Mechanistically, endothelial TET2 modulates obesity by engaging in endothelial fatty acid oxidation and angiocrine-mediated secretion of bone morphogenetic protein 4 (BMP4), in which nuclear factor-erythroid 2-related factor 2 (NRF2) serves as a key mediator. Our study reveals that endothelial TET2 regulates white adipose tissue browning by interacting with NRF2 to facilitate fatty acid oxidation and lipolysis in adipocytes.

Keywords

BMP4; Fatty acid oxidation; NRF2; Obesity; TET2.

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