Abstract

Human antigen R (HuR) is a member of the Hu family of RNA-binding proteins and is involved in many physiological processes. Obesity, as a worldwide healthcare problem, has attracted more and more attention. To investigate the role of adipose HuR, we generate adipose-specific HuR knockout (HuRAKO) mice. As compared with control mice, HuRAKO mice show obesity when induced with a high-fat diet, along with insulin resistance, glucose intolerance, hypercholesterolemia and increased inflammation in adipose tissue. The obesity of HuRAKO mice is attributed to adipocyte hypertrophy in white adipose tissue due to decreased expression of adipose triglyceride lipase (ATGL). HuR positively regulates ATGL expression by promoting the mRNA stability and translation of ATGL. Consistently, the expression of HuR in adipose tissue is reduced in obese humans. This study suggests that adipose HuR may be a critical regulator of ATGL expression and lipolysis and thereby controls obesity and metabolic syndrome.

Human antigen R (HuR) is a RNA-binding protein. Here the authors investigate its role in adipose tissue and find that it protects mice from diet-induced obesity, prevents adipocyte hypertrophy, and promotes lipolysis, which may at least in part be due to HuR-dependent ATGL mRNA stability regulation demonstrated in-vitro.

Details

Title
Adipose HuR protects against diet-induced obesity and insulin resistance
Author
Li, Jingyuan 1 ; Gong, Li 2 ; Liu Shaozhuang 3 ; Zhang, Yujie 1 ; Zhang, Chunmei 1 ; Tian Mi 1 ; Lu Huixia 1 ; Bu Peili 1 ; Yang, Jianmin 1 ; Ouyang Changhan 4 ; Jiang Xiuxin 3 ; Wu, Jiliang 4 ; Zhang, Yun 1 ; Min, Qing 4 ; Zhang, Cheng 1 ; Zhang Wencheng 5 

 Qilu Hospital of Shandong University, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Jinan, China (GRID:grid.452402.5) 
 Qilu Hospital of Shandong University, Department of Traditional Chinese Integrated Western Medicine, Jinan, China (GRID:grid.452402.5) 
 Qilu Hospital of Shandong University, Department of General Surgery, Jinan, China (GRID:grid.452402.5) 
 Hubei University of Science and Technology, School of Pharmacy, Xianning, China (GRID:grid.470508.e) (ISNI:0000 0004 1757 4174) 
 Qilu Hospital of Shandong University, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Jinan, China (GRID:grid.452402.5); Hubei University of Science and Technology, School of Pharmacy, Xianning, China (GRID:grid.470508.e) (ISNI:0000 0004 1757 4174) 
Publication year
2019
Publication date
2019
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2232664800
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.