Deconvoluting the context-dependent role for autophagy in cancer.

Deconvoluting the context-dependent role for autophagy in cancer.
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DOI:
10.1038/nrc3262
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发表时间:
2012-04-26
期刊:
Nature reviews. Cancer
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其他
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自噬(也称为大自噬)捕获自噬体中的细胞内组分并将其递送到溶酶体,在那里它们被降解和回收。自噬在癌症中有两种功能。它可以通过消除致癌蛋白质底物、毒性未折叠蛋白质和受损细胞器来抑制肿瘤。或者,它可以通过自噬介导的细胞内再循环在已建立的癌症中促进肿瘤,所述细胞内再循环为代谢提供底物并维持线粒体的功能库。因此,定义自噬在癌症中的特定作用及其机制对于指导基于自噬的治疗干预将是重要的。
Autophagy (also known as macroautophagy) captures intracellular components in autophagosomes and delivers them to lysosomes, where they are degraded and recycled. Autophagy can have two functions in cancer. It can be tumour suppressive through the elimination of oncogenic protein substrates, toxic unfolded proteins and damaged organelles. Alternatively, it can be tumour promoting in established cancers through autophagy-mediated intracellular recycling that provides substrates for metabolism and that maintains the functional pool of mitochondria. Therefore, defining the context-specific role for autophagy in cancer and the mechanisms involved will be important to guide autophagy-based therapeutic intervention.
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