USP14调节细胞烧灭,并通过使SIRT3脱和稳定,改善多克索鲁比诱导的心脏毒性

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¹Department of Cardiology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, No.150 Ximen Street, Linhai, Zhejiang Province, 317000, China; Laboratory of Cardiovascular Disease, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, No.150 Ximen Street, Linhai, Zhejiang Province, 317000, China.

Free radical biology & medicine

|November 3, 2024

概括

双化酶USP14通过稳定SIRT3,一个关键的线粒体蛋白质,保护免受多克索鲁比诱导的心脏毒性. 这种机制涉及调节热和在化疗期间保持心脏功能.

科学领域:

生物化学生物化学
心脏病学心脏病学
分子生物学分子生物学

背景情况:

多克索鲁比 (DOX) 是一种强效的化疗剂,但引起显著的心脏毒性.
了解DOX诱导心脏毒性背后的分子机制对于开发心脏保护策略至关重要.
热,一种编程细胞死亡的形式,在心脏损伤中起作用.

研究的目的:

为了研究duxorubicin诱导的心脏毒性 (DIC) 中的duebiquitinating酶USP14的作用.
阐明USP14通过稳定线粒体蛋白SIRT3.3调节热的机制.
评估USP14作为心脏保护的潜在治疗点.

主要方法:

使用了体内和体外实验模型.
USP14表达被操纵 (过度表达和沉默).
使用siRNA.RNA使SIRT3沉默.
评估了热,线粒体功能和氧化应激.
进行了免疫沉以确认蛋白质相互作用.

主要成果:

USP14过度表达通过调节热死来保护DOX诱导的心脏损伤.
沉默SIRT3将其确定为USP14调节热的关键调解者.
DOX暴露减少了USP14的表达,而USP14的过度表达保留了线粒体功能,并通过稳定SIRT3.3减少了氧化应激.
证实USP14可以通过duebiquitination稳定SIRT3.

结论:

USP14对多克索鲁比引起的心脏毒性起着保护作用.
USP14稳定SIRT3,从而调节热和维护线粒体完整性.
USP14代表了一种有前途的治疗标,用于减轻化疗诱导的心脏毒性并增强心脏保护.

关键词:

消灭城市的消灭.德克索鲁比诱导的心脏毒性热灭菌的发生.在SIRT3中,SIRT3是最重要的.美国 14 美元

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