自噬在疾病中的双重作用

被引:23
作者
王旭垒 [1 ]
熊剑锐 [1 ]
赵启明 [1 ]
蒋维 [2 ]
李萍 [1 ]
机构
[1] 西南交通大学生命科学与工程学院
[2] 四川大学华西医院分子医学研究中心生物治疗国家重点实验室
关键词
自噬; 疾病; 凋亡; 坏死; 肝脏; 心脏;
D O I
10.13241/j.cnki.pmb.2014.25.052
中图分类号
R363 [病理生理学];
学科分类号
100103 [病原生物学];
摘要
自噬是细胞的一种正常的生理活动,参与细胞内损伤的蛋白质和亚细胞器经溶酶体途径降解的过程。自噬可以抵御外界的不良环境,在多种疾病中起着重要作用。近年来,大量研究表明自噬在细胞新陈代谢和生理功能上有双重作用,在疾病发生的不同时期,自噬起到不同的作用。通常情况自噬可以及时的清除细胞内损伤的蛋白质,作为一种细胞的保护机制,但是自噬的持续活化,导致细胞内大量蛋白质的降解,使细胞无法维持其基本结构,最终将导致细胞坏死或凋亡。自噬、凋亡和坏死的转化,很有可能受到p53、Bcl-2、Beclin-1、ATG5、TG2及p62等信号分子调控。肝脏和心脏是维持人体生命活动的重要器官,自噬在脂肪肝、肝硬化、心肌梗塞及心脏衰竭等疾病中扮演着重要的角色。本文总结了自噬、凋亡及坏死的相互关系,自噬在疾病中的双重作用,并重点介绍自噬在肝脏和心脏疾病中的作用。
引用
收藏
页码:4997 / 5000
页数:4
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