机构:[1]Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China.[2]College of Veterinary Medicine, Yunnan Agricultural University, Kunming, China.[3]Department of Endocrinology and Metabolism, The First Hospital, Jilin University, Changchun, China.[4]State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.[5]Weifang Hospital of Traditional Chinese Medicine, Weifang, China.
Aims:
Nuclear factor E2-related factor 2 (Nrf2) is a regulator of cellular oxidative stress and is also involved in lipid metabolism in adipocytes. However, it remains unknown as to whether Nrf2 is the link between oxidative stress and the induction of lipid accumulation in adipocytes.
Results:
Here, we show that oxidative stress is markedly increased in white adipose tissue from mice with high-fat diet-induced or genetically (ob/ob)-induced obesity and from human subjects with obesity. Notably, in response to oxidative stress, Nrf2 expression and activity were induced, further promoting lipid accumulation in adipocytes and exacerbating the development of obesity. In contrast, Nrf2 ablation alleviated oxidative stress-induced lipid accumulation. Mechanistically, oxidative stress promoted Nrf2 recruitment to the sterol regulatory element binding protein 1 promoter, inducing target gene transcription and subsequent lipogenesis. In addition, Nrf2 mediated oxidative stress-inhibited lipolysis in adipocytes via the protein kinase A pathway.
Innovation and Conclusion:
Our data provide a novel insight that Nrf2, as a critical signaling node, links oxidative stress to the induction of fat accumulation in adipocytes.
基金:
This work was supported by the National Key Research
and Development Program (Beijing, China; Grant No.
2016YFD0501206 and 2016YFD0501007), the National
Natural Science Foundation of China (Beijing, China;
Grant No. 31472247, 31572581, 31672621, and 31772810),
the Jilin Province Science Foundation for Youths (Changchun,
China; Grant No. 20160520063JH), and the Jilin
Natural Science Foundation (Changchun, China; Grant No.
20170101148JC)
语种:
外文
PubmedID:
中科院(CAS)分区:
出版当年[2020]版:
大类|2 区生物
小类|2 区生化与分子生物学2 区内分泌学与代谢
最新[2023]版:
大类|2 区生物学
小类|2 区生化与分子生物学2 区内分泌学与代谢
第一作者:
第一作者机构:[1]Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China.
通讯作者:
通讯机构:[1]Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, China.[*1]Key Laboratory of Zoonosis Research Ministry of Education College of Veterinary Medicine Jilin University 5333 Xi’an Road Changchun 130062 China
推荐引用方式(GB/T 7714):
Sun Xudong,Li Xiaobing,Jia Hongdou,et al.Nuclear Factor E2-Related Factor 2 Mediates Oxidative Stress-Induced Lipid Accumulation in Adipocytes by Increasing Adipogenesis and Decreasing Lipolysis.[J].Antioxidants & redox signaling.2020,32(3):173-192.doi:10.1089/ars.2019.7769.
APA:
Sun Xudong,Li Xiaobing,Jia Hongdou,Wang Heyuan,Shui Guanghou...&Li Xinwei.(2020).Nuclear Factor E2-Related Factor 2 Mediates Oxidative Stress-Induced Lipid Accumulation in Adipocytes by Increasing Adipogenesis and Decreasing Lipolysis..Antioxidants & redox signaling,32,(3)
MLA:
Sun Xudong,et al."Nuclear Factor E2-Related Factor 2 Mediates Oxidative Stress-Induced Lipid Accumulation in Adipocytes by Increasing Adipogenesis and Decreasing Lipolysis.".Antioxidants & redox signaling 32..3(2020):173-192