线粒体相关的ER膜功能高葡萄糖诱导的不平衡促进RSC96细胞损伤
Housheng Fu1, Jianbing Xu2, Fei Wang3
1Department of Urology, Hainan Hospital Affiliated to Hainan Medical University, Haikou, China. shengshengzhu@yeah.net.
Cellular and molecular biology (Noisy-le-Grand, France)
|September 16, 2023
概括
高葡萄糖通过破坏与线粒体相关的ER膜 (MAMs) 来损害大鼠施万细胞,导致过载和氧化应激增加. 这项研究揭示了MAMs失衡是高葡萄糖诱导的细胞损伤的关键机制.
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.
- 生物化学 生物化学
背景情况:
- 施万细胞 (SCs) 对于神经功能至关重要.
- 高血糖水平与糖尿病神经病变有关.
- 线粒体相关的ER膜 (MAMs) 在细胞平衡中起着至关重要的作用.
研究的目的:
- 为了研究高葡萄糖对大鼠SCsMAMs的影响.
- 为了阐明高葡萄糖诱导的SC损伤的机制.
- 分析MAMs相关蛋白质的变化.
主要方法:
- 在高葡萄糖条件下培养RSC96细胞.
- 测量了细胞内和ROS水平.
- 通过传输电子显微镜观察亚细胞结构和MAM.
- 西部斑点分析用于检测与MAM相关的蛋白质 (Mfn2,PERK,VDAC1,IP3R).
主要成果:
- 高血糖显著增加了细胞内和ROS水平.
- 观察到线粒体和ER损伤,MAMs形成增加.
- Mfn2的表达减少,而PERK,VDAC1和IP3R的表达显著增加.
结论:
- 高葡萄糖会导致老鼠的 Schwann 细胞中MAMs 功能失衡.
- 这种不平衡促进了细胞内过载,导致细胞损伤.
- 在高葡萄糖诱导的SC损伤中,MAMs功能障碍是关键机制.
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