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击败PIAS3降低HT22细胞中H₂O₂诱导的氧化应激损伤

Baixue Wang¹, Wenxin Qian¹, Kaiyue Chen¹

¹Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China.

Cell biochemistry and biophysics

|May 11, 2024

概括

击败SUMO酶PIAS3可以保护HT22细胞免受过氧化诱导的氧化应激和亡. 这表明PIAS3是神经退行性疾病的潜在治疗点.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

氧化应激是神经退行性疾病的关键因素.
小型泛素类修饰剂 (SUMO) 结合与氧化应激损伤有关.
SUMO连接酶调节参与氧化应激反应的蛋白质.

研究的目的:

调查SUMO结合酶PIAS3在过氧化 (H2O2) 诱导的氧化应激中的作用.
评估PIAS3倒置对HT22细胞中细胞亡和细胞活性的影响.

主要方法:

在HT22细胞中选siRNAs以击倒PIAS3.
用H2O2刺激HT22细胞以诱导氧化应激.
分析蛋白质SUMOylation,活性氧物种 (ROS) 水平,分裂的caspase-3,p38/JNK酸化,亡和细胞活性的分析.

主要成果:

H2O2治疗增加了SUMOylation,ROS,分裂的caspase-3,p38/JNK酸化,亡,并降低了细胞活力.
通过siRNA介导的PIAS3 (siPIAS3-329) 中断逆转了这些H2O2诱导的效应.
负对照siRNA (siNC) 没有显著的影响.

结论:

通过P38/JNK通路,PIAS3介导的SUMOylation有助于氧化应激损伤和亡.
PIAS3代表了减轻与氧化应激相关的神经退行症的潜在治疗标.

关键词:

细胞亡是细胞的亡.氧化应激是一种氧化应激.在 PIAS3 中.这就是ROSOS ROS.这就是SUMOylation的作用.

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