Aerobic exercise prevents renal osteodystrophy via irisin-activated osteoblasts.

IF 6.3 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL JCI insight Pub Date : 2025-01-30 DOI:10.1172/jci.insight.184468
Meng Wu, Huilan Li, Xiaoting Sun, Rongrong Zhong, Linli Cai, Ruibo Chen, Madiya Madeniyet, Kana Ren, Zhen Peng, Yujie Yang, Weiqin Chen, Yanling Tu, Miaoxin Lai, Jinxiu Deng, Yuting Wu, Shumin Zhao, Qingyan Ruan, Mei Rao, Sisi Xie, Ying Ye, Jianxin Wan
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Abstract

Renal osteodystrophy is commonly seen in patients with chronic kidney disease (CKD) due to disrupted mineral homeostasis. Given the impaired renal function in these patients, common antiresorptive agents, including bisphosphonates, must be used with caution or even contraindicated. Therefore, an alternative therapy without renal burden to combat renal osteodystrophy is urgently needed. Here, we report that clinically relevant aerobic exercise significantly prevents high-turnover renal osteodystrophy in CKD mice and patients with CKD without compromising renal function. Mechanistically, 4-week aerobic exercise in CKD mice increased expression of skeletal muscle PPARγ coactivator-1α (PGC-1α) and circulating irisin. Both exercise and irisin administration significantly activated osteoblasts, but not osteoclasts, via integrin αvβ5, thereby conferring bone quality benefits. Removal of irisin-influenced thermogenic adipose tissues or genetic ablation of uncoupling protein 1 did not alter the irisin-conferred antiosteodystrophy effect. Importantly, in a pilot clinical study, 12-week aerobic exercise in patients with high-grade CKD significantly increased circulating irisin and prevented osteodystrophy progression, without detectable renal burden. The combination of irisin and current antiresorptive agents effectively rescued renal osteodystrophy in mice. Our work provides mechanistic insights into the role of exercise and irisin in renal osteodystrophy, and it highlights a clinically relevant, low-cost, kidney-friendly therapy for patients with this devastating disease.

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JCI insight
JCI insight Medicine-General Medicine
CiteScore
13.70
自引率
1.20%
发文量
543
审稿时长
6 weeks
期刊介绍: JCI Insight is a Gold Open Access journal with a 2022 Impact Factor of 8.0. It publishes high-quality studies in various biomedical specialties, such as autoimmunity, gastroenterology, immunology, metabolism, nephrology, neuroscience, oncology, pulmonology, and vascular biology. The journal focuses on clinically relevant basic and translational research that contributes to the understanding of disease biology and treatment. JCI Insight is self-published by the American Society for Clinical Investigation (ASCI), a nonprofit honor organization of physician-scientists founded in 1908, and it helps fulfill the ASCI's mission to advance medical science through the publication of clinically relevant research reports.
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