Autophagy and cell death.

Autophagy and cell death.
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DOI:
10.1042/bse0550105
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发表时间:
2013
影响因子:
6.4
通讯作者:
Thorburn A
Thorburn A
中科院分区:
生物学2区
文献类型:
--
作者:
Yonekawa T;Thorburn A

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自噬与真核细胞死亡和凋亡密切相关。事实上,在某些情况下,相同的蛋白质同时控制自噬和细胞凋亡。细胞凋亡信号传导可以调节自噬,相反,自噬可以调节细胞凋亡(以及很可能的其他细胞死亡机制)。然而,自噬和细胞死亡之间的分子联系很复杂,在不同的情况下,自噬可能促进或抑制细胞死亡。令人惊讶的是,尽管我们知道自噬的核心涉及隔离的细胞质物质的降解,因此可能必须通过降解某些物质来介导其对细胞死亡的影响,但在大多数情况下,我们几乎不知道是什么被降解以促进自噬的促死亡或抗死亡活性。由于已知自噬在健康和许多疾病中发挥着重要作用,因此了解自噬与细胞死亡机制相互作用并影响细胞死亡机制的机制至关重要,因为这可能会提供预防或治疗疾病的新方法。在本章中,我们讨论对这些过程的当前理解状态。
Autophagy is intimately associated with eukaryotic cell death and apoptosis. Indeed in some cases the same proteins control both autophagy and apoptosis. Apoptotic signaling can regulate autophagy and conversely autophagy can regulate apoptosis (and most likely other cell death mechanisms). However the molecular connections between autophagy and cell death are complicated and, in different contexts, autophagy may promote or inhibit cell death. Surprisingly, although we know that, at its core, autophagy involves degradation of sequestered cytoplasmic material, and therefore presumably must be mediating its effects on cell death by degrading something, in most cases we have little idea what is being degraded to promote autophagy’s pro- or anti-death activities. Because autophagy is known to play important roles in health and many diseases, it is critical to understand the mechanisms by which autophagy interacts with and affects the cell death machinery since this will perhaps allow new ways to prevent or treat disease. In this chapter we discuss the current state of understanding of these processes.
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