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通过P300介导的ARRB1乳化促进了线粒体功能障碍和神经细胞亡,通过S100A9UpregulatingS100A9通过下大脑关节出血

Kewei Mi¹, Zigui Chen¹, Jun He¹

¹Department of neurosurgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, No.43, Renmin Road, Meilan District, Haikou, 570208, Hainan Province, P.R. China.

Neurochemical research

|May 30, 2025

概括

乳化β-arrestin1 (ARRB1) 通过增加S100A9,导致线粒体功能障碍,加剧了下大脑下出血 (SAH) 后的神经元损伤. 针对这种途径为SAH提供了潜在的治疗策略.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
细胞生物学细胞生物学

背景情况:

乳酸化是一种乳酸衍生后翻译性修饰,影响大脑功能.
脑下关节下出血 (SAH) 是一种具有有限治疗选择的关键神经疾病.
在SAH病理生理学中β-arrestin1 (ARRB1) 乳化作用仍然未被探索.

研究的目的:

研究ARRB1乳化在SAH后神经元损伤中的作用和机制.
确定参与ARRB1乳介导SAH的关键蛋白质和途径.
基于ARRB1乳化,探索SAH的潜在治疗点.

主要方法:

建立小鼠SAH模型和用氧血球蛋白 (oxyHb) 刺激的初级神经元培养物.
乳酸组分析以确定差异性乳酸化蛋白质.
评估线粒体功能,细胞活力,细胞亡和蛋白质相互作用.

主要成果:

在SAH小鼠大脑中观察到高乳酸和ARRB1乳化.
由P300促进的ARRB1乳化,加剧了氧Hb诱导的神经元损伤和线粒体功能障碍.
ARRB1乳化上调了S100结合蛋白A9 (S100A9),这介导了线粒体功能障碍和神经元亡.
通过抑制S100A9介导的线粒体功能障碍,ARRB1沉默减轻了SAH损伤.

结论:

通过P300介导的ARRB1乳化增加了S100A9,促进了SAH中的线粒体功能障碍和神经元亡.
这种ARRB1乳化途径代表了改善SAH患者治疗结果的潜在治疗标.

关键词:

在ARRB1乳酸化中,ARRB1乳酸化细胞灭亡 (apoptosis) 是一种死亡的过程.线粒体功能障碍线粒体功能障碍在P300300中,P300是最重要的.在S100A9A9中使用.甲状腺下下垂体出血

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