V2EX autophagosome

Autophagosome

释义 Definition

自噬体:细胞在“自噬(autophagy)”过程中形成的一种双层膜囊泡,用于包裹受损的细胞器或多余的细胞成分,随后与溶酶体融合并被降解回收,以维持细胞稳态与应对饥饿、压力等情况。

例句 Examples

Autophagosomes form when the cell is under stress.
细胞处于压力状态时会形成自噬体。

During nutrient deprivation, the autophagosome engulfs damaged mitochondria and later fuses with a lysosome to recycle cellular components.
在营养缺乏时,自噬体会吞噬受损的线粒体,并在之后与溶酶体融合以回收细胞成分。

发音 Pronunciation (IPA)

/tofsom/

词源 Etymology

该词由 **auto-**(“自身”)+ **-phago-**(源自希腊语 phagein,意为“吃”)+ -some(“体、结构”)构成,字面含义接近“自我吞食的结构”,对应其在细胞内“自我清理与回收”的功能。

相关词 Related Words

文学/著作中的用例 Literary / Notable Works

  • 《Molecular Biology of the Cell》(《细胞的分子生物学》,Alberts 等):在细胞降解与膜系统章节中讨论自噬及自噬体形成。
  • 《Lehninger Principles of Biochemistry》(《雷宁格生物化学原理》):在细胞代谢调控、细胞成分周转相关内容中提及自噬及相关结构。
  • Klionsky 等关于自噬研究的综述与论文(如 Nature Reviews Molecular Cell Biology 等期刊文章):自噬体(autophagosome)是核心术语之一,频繁出现于机制阐述与实验标记(如 LC3)讨论中。
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