V2EX endosome

Endosome

定义 Definition

内体:细胞内由内吞作用形成的膜性囊泡/细胞器,用于对进入细胞的物质(如受体、配体、营养物)进行分拣、运输与处理;常见类型包括早期内体(early endosome)晚期内体(late endosome),并可与溶酶体途径相衔接。

发音 Pronunciation (IPA)

/n.do.som/

例句 Examples

The virus enters the cell through an endosome.
病毒通过内体进入细胞。

After endocytosis, receptors are sorted in the endosome and either recycled to the membrane or sent to lysosomes for degradation.
内吞之后,受体会在内体中被分拣:要么回收到细胞膜,要么被送往溶酶体降解。

词源 Etymology

endosome 由 **endo-**(“在内部、内”)+ -some(源自希腊语 soma,“身体”,在生物学中常用于表示“体/小体/结构”)构成,字面含义可理解为“细胞内部的(膜性)小体/结构”。该词在细胞生物学中用于命名内吞途径中的关键囊泡结构。

相关词 Related Words

文学与著作 Literary Works

  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):内吞与内体分拣是核心章节内容。
  • The Cell: A Molecular Approach(Cooper & Hausman,《细胞:分子方法》):系统讲解早期/晚期内体及与溶酶体途径的关系。
  • Endocytosis(C. R. Keith & J. McMahon 等相关学术专著/综述标题常见该词):常用于阐述内体在受体循环与信号调控中的作用。
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