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在运动,不使用和衰老期间,骨肌肉中溶解体的调节
N Moradi1, V C Sanfrancesco1, S Champsi1
1Muscle Health Research Centre, Kinesiology and Health Science, York University, Toronto, ON, Canada.
Free radical biology & medicine
|September 27, 2024
概括
溶解体对于骨肌肉的健康至关重要,通过线粒细胞吸收 (mitophagy) 清除受损成分. 运动可以增强 lysosomal 功能,而不使用和衰老会损害它,强调运动.
科学领域:
- 肌肉生理学 肌肉生理学
- 细胞生物学 细胞生物学
- 自和溶酶体生物学
背景情况:
- 溶解体对于蛋白质降解和骨肌肉中的细胞平衡至关重要.
- 它们在肌肉适应运动,不使用和衰老方面的作用尚未得到充分研究.
- 溶解体介导线粒细胞衰变,损坏的线粒体的降解.
研究的目的:
- 在各种生理条件下审查骨肌肉中的溶酶体调节.
- 检查运动,不使用,衰老和性别差异对 lysosomal 功能的影响.
- 探索关键信号通路 (TFEB,TFE3,mTORC1,AMPK,TRPML1) 在 lysosomal活动中的作用.
主要方法:
- 文献综述专注于骨肌肉溶酶体调节.
- 分析涉及自和共的信号通路.
- 考虑诸如运动,不使用,衰老和性别差异等因素.
主要成果:
- 运动通过TFEB/TFE3激活增强了线粒和溶酶体基因表达.
- 肌肉的不使用和衰老导致 lysosomal 活动的抑制和细胞碎片的积累.
- 营养感应 (mTORC1) 和能量状态 (AMPK) 关键调节 lysosomal 功能.
- 通过ROS激活TRPML1对于溶解体释放和线粒细胞衰变至关重要.
结论:
- 溶解体功能对于骨肌肉适应生理需求至关重要.
- lysosomal 途径的干扰有助于肌肉功能障碍在停止使用和衰老.
- 运动诱导的适应突出了治疗干预的潜力,以保持肌肉健康.
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