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血管内皮细胞是沿血管腔表面排列的单层内皮细胞,将血管腔与血管平滑肌及组织分隔开,在维持血管稳态中具有重要的作用。心血管系统中复杂应激环境引起的内皮细胞整合应激反应(ISR)、炎症反应所造成的内皮细胞损伤是动脉粥样硬化的病因[1-2]。与肌组织细胞线粒体相比,内皮细胞线粒体的首要功能是参与信号转导维持细胞功能的完整,其次是进行能量代谢[3-4]。线粒体氧化应激是内皮细胞线粒体损伤的重要原因,而内皮细胞线粒体损伤引起细胞内信号转导异常和代谢紊乱,导致细胞的严重损伤[5]。本文重点阐述动脉粥样硬化病理进程中线粒体氧化应激引起内皮细胞损伤的作用及其机制。
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