CUMS压力通过FIS1/MFF介导的线粒体碎片化促进海马神经线粒
Xiaoke Qiu1, Shaoda Lai1, Yingyi Zhang1
1School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
Journal of neurophysiology
|August 1, 2025
概括
慢性不可预测的轻度压力 (CUMS) 会增加海马神经元中的线粒体和线粒体碎片化. 这种压力会影响FIS1/MFF路径,导致能源赤字.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 压力研究 压力研究
背景情况:
- 慢性不可预测的轻度压力 (CUMS) 范式影响海马牙 (DG) 神经元数量.
- 线粒体碎片化和线粒体与与压力有关的神经元变化有关.
- 由FIS1/MFF调节的线粒体裂变是线粒体动力学中的一个关键过程.
研究的目的:
- 研究CUMS对海马体DG神经元中的线粒体和线粒体碎片化的影响.
- 在此背景下,研究CUMS对FIS1/MFF途径的调制.
主要方法:
- 在一个相关模型中利用了慢性不可预测的轻度压力 (CUMS) 范式.
- 在海马体DG神经元中评估了线粒和线粒体碎片化.
- 分析了FIS1和MFF的表达水平.
主要成果:
- CUMS的压力显著增加了海马体DG神经元中的线粒.
- 在CUMS条件下,线粒体碎片化加剧了.
- FIS1表达是上调的,而MFF表达是下调的,改变了FIS1/MFF平衡.
- 这些变化导致线粒体含量的净损失和能量赤字.
结论:
- CUMS的压力调节了FIS1/MFF平衡,促进了线粒.
- 由于DG神经元中的线粒体碎片化导致的线粒体的增加是CUMS的后果.
- 这种途径的破坏导致长期压力下海马神经元的能量缺陷.
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