在WT和Klotho缺陷小鼠中,神经肌肉电刺激对肌肉,大脑和等离子电动体的转录组反应
bioRxiv : the preprint server for biology
|August 8, 2025
概括
神经肌肉电刺激 (NMES) 在WT和Klotho缺乏的小鼠中类似地影响肌肉代谢. 然而,NMES对大脑基因表达有不同的影响,重点是Klothoho.
科学领域:
- 生物医学工程 生物医学工程
- 分子生物学分子生物学
- 神经科学是一个神经科学.
背景情况:
- 神经肌肉电刺激 (NMES) 增强了运动功能和日常生活活动.
- 细胞外囊泡 (EVs) 是细胞间通信的关键媒介.
- 克洛托在NMES反应中的作用尚不清楚.
研究的目的:
- 调查NMES对野生型 (WT) 和Klotho异合体 (KlHET) 小鼠肌肉,大脑和血衍生的EVs的转录效应.
- 为了比较不同组织和基因型之间对NMES的分子反应.
- 阐明克洛托缺乏对NMES诱导的变化的影响.
主要方法:
- 进行RNA测序 (RNA-seq) 在前肌,大脑组织和血衍生的EVs上.
- 小鼠接受了NMES治疗.
- 分析了转录形状,以确定差异表达的基因和途径.
主要成果:
- 在WT和KlHET小鼠的前肌中,NMES上调葡萄糖代谢和胰岛素反应途径,具有基因型特定的途径改变.
- 血EV显示了与氧气反应,胰岛素反应和突触强化相关的转录学相似性.
- 大脑转录组显示出不同的反应:WT小鼠显示出血流和细胞粘附基因的上调,而KlHET小鼠显示出免疫功能基因上调.
结论:
- 在刺激的肌肉中,NMES会诱导类似的代谢适应.
- 基于Klotho状态,NMES对大脑的间距影响有显著差异.
- 克洛托缺乏与大脑对NMES反应的改变有关,这表明它在调节神经可塑性和免疫功能方面发挥了作用.
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