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Zhang D, Liu H, Zhang Y, Li J, Fu Y, Zheng Y, Wu J, Ma M, Wen Z, Wang C. Heat shock protein 60 (HSP60) modulates adiponectin signaling by stabilizing adiponectin receptor. Cell Commun Signal 2020; 18:60. [PMID: 32272950 PMCID: PMC7147001 DOI: 10.1186/s12964-020-00546-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/06/2020] [Indexed: 12/11/2022] Open
Abstract
Adiponectin, an adipokine produced and secreted by adipocytes, is involved in regulating the development and progression of insulin resistance, diabetes, and diabetic complications. Heat shock protein 60 (HSP60) is a molecular chaperone, most commonly presenting in mitochondria and participating in the maintenance of protein homeostasis. Accumulating studies have demonstrated that the elevated circulating HSP60 and the decreased intracellular HSP60 are closely associated with diabetic complications such as diabetic cardiomyopathy. However, the underlying mechanism remains poorly understood. In the present study, we reported that HSP60 interacted directly with adiponectin receptors. Its abundance was positively associated with adiponectin action. Furthermore, HSP60 depletion markedly mitigated the protective impacts of adiponectin on high glucose-induced oxidative stress and cell apoptosis in rat cardiac H9c2 cells. In addition, HSP60 knockdown significantly enhanced proteasome activity leading to the degradation of adiponectin receptor 1. Taken together, we showed for the first time that HSP60 interacted with adiponectin receptors and mediated adiponectin signaling through stabilizing adiponectin receptor. This in vitro study also provides an alternative explanation for mechanism by which adiponectin exerts its action. Video abstract
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Affiliation(s)
- Deling Zhang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Hua Liu
- Department of Clinical Pathology, The First People's Hospital of Lianyungang, Lianyungang, 222061, China
| | - Yemin Zhang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Junfeng Li
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yalin Fu
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Yuyang Zheng
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Jie Wu
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China
| | - Mingke Ma
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Zhongyuan Wen
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Changhua Wang
- Department of Pathology & Pathophysiology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China. .,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
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