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甲基可巴胺对氧化应激下施万细胞线粒体变化的作用

Qicheng Li^1,2, Shiyan Liu³, Lu Zhang^1,2,3

¹Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing 100044, China.

|October 29, 2025

概括

甲基可巴胺 (MeCbl) 通过改善线粒体结构和功能,保护施万细胞免受氧化应激. 这表明MeCbl是对外围神经病变的有希望的治疗方法.

科学领域:

细胞生物学细胞生物学
神经科学是一个神经科学.
线粒体生物学线粒体生物学

背景情况:

周围神经病变 (PN) 涉及氧化应激扰乱施万细胞平衡.
线粒体对活性氧物种 (ROS) 生产和PN的脆弱性至关重要.
施万细胞对于周围神经的功能和完整性至关重要.

研究的目的:

调查甲基可巴胺 (MeCbl) 对施瓦恩细胞中氧化应激诱导的线粒体功能障碍的保护作用.
通过转录组和网络药理学方法阐明MeCbl作用的分子机制.

主要方法:

为了诱导氧化损伤,RSC96细胞接受过氧化 (H2O2) 处理,然后进行MeCbl处理.
超分辨率成像评估了线粒体网络完整性和形态测量.
通过RNA测序确定了差异表达基因 (DEG) 和丰富的通路.
网络药理学将MeCbl目标与转录基因数据集成在一起.

主要成果:

MeCbl治疗逆转了H2O2诱导的线粒体分裂,增强了网络连接.
转录组分析揭示了MeCbl调节的应激反应途径,包括线粒体组织,氧化还原平衡和蛋白质质量控制.
网络药理学证实MeCbl目标与DEGs在关键的线粒体质量控制和抗氧化剂防御节点中融合.

结论:

MeCbl 改善了线粒体结构,并在受氧化应激影响的 Schwann 细胞中重新塑造了应激反应通路.
这些发现支持MeCbl作为氧化压力驱动的外围神经病变的辅助疗法.
确定了PN潜在的向治疗干预措施的监管轴.

关键词:

在RNA-Seqq.施万的细胞是斯万的细胞.甲基可巴胺胺是什么线粒体中的线粒体.氧化应激是一种氧化应激.

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