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组织蛋白酶L与自噬在退行性神经病变中作用

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摘要 组织蛋白酶L(Cathepsin L)是溶酶体木瓜蛋白酶家族中的一种半胱氨酸蛋白酶,其主要功能是降解和更新细胞内的蛋白。Cathepsin L在溶酶体降解蛋白的过程中发挥着重要作用,通过维持细胞内蛋白的动态平衡,从而参与机体的各项生理活动。自噬作为一种细胞生物学过程,自噬体(Autophagosome)是通过粗面内质网中无核糖体附着区所脱落的双层膜结构,包裹细胞内需降解的细胞器和部分胞质、蛋白质等成分形成,其与溶酶体融合形成自噬溶酶体,降解其所包裹的内容物,以实现细胞本身的代谢需要和某些细胞器的更新,自噬功能当前倍受关注,是研究热点之一,自噬的完成依赖于正常的溶酶体功能。
作者 张创 张智博
出处 《心脑血管病防治》 2015年第1期50-53,共4页 CARDIO-CEREBROVASCULAR DISEASE PREVENTION AND TREATMENT
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