Mitochondrial quality control mechanisms

  • 文章类型: Journal Article
    肝脏缺血再灌注损伤是肝脏手术中缺血后血流恢复导致肝细胞损伤加剧的一种现象。尤其是那些涉及肝移植的。线粒体,产生能量的细胞器,对于细胞存活和凋亡至关重要,并且已经发展了一系列质量控制机制,以维持线粒体网络中的稳态以应对各种应激条件。肝缺血再灌注导致线粒体质量控制机制的破坏,线粒体自噬减少证明了这一点,过度分裂,减少融合,和抑制生物发生。这导致线粒体网络的功能障碍。由于细胞色素C等凋亡蛋白的释放,受损线粒体的积累最终导致肝细胞凋亡。这加剧了肝缺血再灌注损伤。目前,肝脏缺血再灌注损伤保护正在研究使用不同的方法,如药物预处理,干细胞和外泌体,遗传干预,和机械再灌注,所有这些都旨在针对线粒体质量控制机制。本文旨在通过对靶向线粒体质控机制的最新研究进行综述,为今后抗HIRI研究提供方向。
    Hepatic ischemia-reperfusion injury is a phenomenon in which exacerbating damage of liver cells due to restoration of blood flow following ischemia during liver surgery, especially those involving liver transplantation. Mitochondria, the energy-producing organelles, are crucial for cell survival and apoptosis and have evolved a range of quality control mechanisms to maintain homeostasis in the mitochondrial network in response to various stress conditions. Hepatic ischemia-reperfusion leads to disruption of mitochondrial quality control mechanisms, as evidenced by reduced mitochondrial autophagy, excessive division, reduced fusion, and inhibition of biogenesis. This leads to dysfunction of the mitochondrial network. The accumulation of damaged mitochondria ultimately results in apoptosis of hepatocytes due to the release of apoptotic proteins like cytochrome C. This worsens hepatic ischemia-reperfusion injury. Currently, hepatic ischemia-reperfusion injury protection is being studied using different approaches such as drug pretreatment, stem cells and exosomes, genetic interventions, and mechanical reperfusion, all aimed at targeting mitochondrial quality control mechanisms. This paper aims to provide direction for future research on combating HIRI by reviewing the latest studies that focus on targeting mitochondrial quality control mechanisms.
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