CELL:线粒体过度激活导致社会行为障碍

2020-05-17 MedSci原创 MedSci原创

社交障碍经常与线粒体功能障碍和神经递质改变有关。虽然线粒体功能对大脑的平衡至关重要,但线粒体功能的损伤是否会导致社会行为障碍仍是未知数。

社交障碍经常与线粒体功能障碍和神经递质改变有关。虽然线粒体功能对大脑的平衡至关重要,但线粒体功能的损伤是否会导致社会行为障碍仍是未知数。

最近,研究人员表明,在人类CYFIP1的同源基因具有突变的果蝇,一个与自闭症和精神分裂症有关的基因,表现出线粒体的过度激活和群体行为的改变。

此外,研究人员还确定了线粒体活动对GABA可用性的调节是其背后的生物学相关机制,并证明其对社会行为的贡献。具体来说,线粒体活动的增加会导致线粒体中γ-氨基丁酸(GABA)的封存,减少GABA能信号传导,导致社交障碍。

线粒体活性或GABA信号转导的药物和基因操纵可纠正所观察到的异常。研究人员还确定了Aralar是线粒体转运体,在线粒体活性增加时,会使GABA封存发生。

这项研究增加了我们对线粒体如何在生理病理条件下调节神经元平衡和社会行为的理解。

 

原始出处:

Kanellopoulos AK, Mariano V, Spinazzi M, et al. Aralar Sequesters GABA into Hyperactive Mitochondria, Causing Social Behavior Deficits. Cell. 2020;180(6):1178‐1197.e20. doi:10.1016/j.cell.2020.02.04

 

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    2020-10-17 ms2000001981254854

    精神分裂自闭怎么吃药?

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    2020-12-22 维他命
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