针对ERR来抵消与身体不活动相关的与年龄相关的肌肉缩:一个试点研究
Roberto Bonanni1, Angela Falvino2, Antonio Matticari3
1Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
Frontiers in physiology
|July 22, 2025
概括
向与雌激素相关的受体 (ERRs) 可能会对抗与年龄相关的肌肉衰退. 在不活跃的女性肌肉细胞中激活ERR可以减少氧化应激并改善肌管形成,这表明其具有治疗潜力.
科学领域:
- 肌肉生理学和细胞代谢.
- 内分泌学和治疗目标.
- 衰老和肉症研究.
背景情况:
- 与雌激素相关的受体 (ERR) 调节线粒体功能和细胞呼吸,影响肌肉对运动的反应.
- 肌肉衰退在衰老和不活动中是一个重要的健康问题.
- 准ERR是一个潜在的策略来抵消肌肉缩.
研究的目的:
- 评估针对不活跃女性肌肉细胞中的ERRs的影响.
- 评估ERR激活后的代谢和表达变化.
- 研究ERRs激动剂在肌肉健康中的治疗潜力.
主要方法:
- 从活跃和不活跃的妇女的肌肉活检分析了蛋白质表达 (NOX4,SIRT1,PGC-1α,ERRα,FNDC5).
- 来自不活跃女性的髓细胞被培养并用ERR激动剂 (SLU-PP-332) 进行治疗.
- 评估了细胞毒性,氧化应激,衰老和髓管分化的变化.
主要成果:
- 不活跃的女性的NOX4高,SIRT1,PGC-1α,ERRα和FNDC5表达低.
- 在SLU-PP-332治疗下调NOX4和上调SIRT1,PGC-1α,ERRα,FNDC5,Akt和Bcl-2.
- ERR激活降低了细胞毒性和氧化应激,提高了谷氨水平,并促进了髓管的形成.
结论:
- 准ERR是一种有前途的治疗策略,用于静止型个体的肌肉缩.
- 激活ERR积极影响肌肉细胞代谢,分化和生存.
- 需要进一步的研究来阐明分子机制和代谢影响.
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