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Chen Y, Chen X, Luo Z, Kang X, Ge Y, Wan R, Wang Q, Han Z, Li F, Fan Z, Xie Y, Qi B, Zhang X, Yang Z, Zhang JH, Liu D, Xu Y, Wu D, Chen S. Exercise-Induced Reduction of IGF1R Sumoylation Attenuates Neuroinflammation in APP/PS1 Transgenic Mice. J Adv Res 2024:S2090-1232(24)00127-9. [PMID: 38565402 DOI: 10.1016/j.jare.2024.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/03/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
INTRODUCTION Alzheimer's Disease (AD), a progressive neurodegenerative disorder, is marked by cognitive deterioration and heightened neuroinflammation. The influence of Insulin-like Growth Factor 1 Receptor (IGF1R) and its post-translational modifications, especially sumoylation, is crucial in understanding the progression of AD and exploring novel therapeutic avenues. OBJECTIVES This study investigates the impact of exercise on the sumoylation of IGF1R and its role in ameliorating AD symptoms in APP/PS1 mice, with a specific focus on neuroinflammation and innovative therapeutic strategies. METHODS APP/PS1 mice were subjected to a regimen of moderate-intensity exercise. The investigation encompassed assessments of cognitive functions, alterations in hippocampal protein expressions, neuroinflammatory markers, and the effects of exercise on IGF1R and SUMO1 nuclear translocation. Additionally, the study evaluated the efficacy of KPT-330, a nuclear export inhibitor, as an alternative to exercise. RESULTS Exercise notably enhanced cognitive functions in AD mice, possibly through modulations in hippocampal proteins, including Bcl-2 and BACE1. A decrease in neuroinflammatory markers such as IL-1β, IL-6, and TNF-α was observed, indicative of reduced neuroinflammation. Exercise modulated the nuclear translocation of SUMO1 and IGF1R in the hippocampus, thereby facilitating neuronal regeneration. Mutant IGF1R (MT IGF1R), lacking SUMO1 modification sites, showed reduced SUMOylation, leading to diminished expression of pro-inflammatory cytokines and apoptosis. KPT-330 impeded the formation of the IGF1R/RanBP2/SUMO1 complex, thereby limiting IGF1R nuclear translocation, inflammation, and neuronal apoptosis, while enhancing cognitive functions and neuron proliferation. CONCLUSION Moderate-intensity exercise effectively mitigates AD symptoms in mice, primarily by diminishing neuroinflammation, through the reduction of IGF1R Sumoylation. KPT-330, as a potential alternative to physical exercise, enhances the neuroprotective role of IGF1R by inhibiting SUMOylation through targeting XPO1, presenting a promising therapeutic strategy for AD.
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Affiliation(s)
- Yisheng Chen
- Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaofeng Chen
- Department of Orthopaedics, National Regional Medical Center, Jinjiang Municipal Hospital,Shanghai Sixth People's Hospital, Fujian, Jinjiang,China.
| | - Zhiwen Luo
- Huashan Hospital, Fudan University, Shanghai, China
| | - Xueran Kang
- Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, China
| | - Yunshen Ge
- Huashan Hospital, Fudan University, Shanghai, China
| | - Renwen Wan
- Huashan Hospital, Fudan University, Shanghai, China
| | - Qian Wang
- Department of Central Laboratory, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong, China
| | - Zhihua Han
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Fangqi Li
- Huashan Hospital, Fudan University, Shanghai, China
| | - Zhongcheng Fan
- Department of Orthopaedic Surgery, Hainan Province Clinical Medical Center, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, China
| | - Yuchun Xie
- Jiangsu Province Geriatric Hospital, China
| | - Beijie Qi
- Huashan Hospital, Fudan University, Shanghai, China
| | - Xintao Zhang
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital Lianhua Road, Shenzhen City, Guangdong Province, China
| | - Zhenwei Yang
- Department of Orthopaedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China
| | - John H Zhang
- Department of Neurosurgery, Department of Physiology and Pharmacology, Department of Neurosurgery and Anesthesiology, School of Medicine, Loma Linda University, Risley Hall, Room 219, 11041 Campus Street, Loma Linda, CA, 92354, USA.
| | - Danping Liu
- Department of Orthopaedics, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning Province, China.
| | - Yuzhen Xu
- Department of Rehabilitation, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China.
| | - Dongyan Wu
- Huashan Hospital, Fudan University, Shanghai, China.
| | - Shiyi Chen
- Huashan Hospital, Fudan University, Shanghai, China.
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