V2EX proto-oncogene

Proto-oncogene

释义 Definition

原癌基因:正常细胞中本来就存在的一类基因,负责调控细胞生长、分裂与分化等过程;当它发生突变过度表达或被异常激活时,可能转变为癌基因(oncogene),推动肿瘤发生。(该术语也常用于指这类基因本身或其功能类别。)

发音 Pronunciation

/proto kodin/

例句 Examples

A proto-oncogene helps regulate cell growth.
原癌基因有助于调控细胞生长。

Mutations in a proto-oncogene can convert it into an oncogene, leading to uncontrolled cell division and cancer.
原癌基因发生突变可能使其转变为癌基因,从而引发失控的细胞分裂并导致癌症。

词源 Etymology

proto- 表示“最初的、前体的”,onco- 源自希腊语,意为“肿瘤”,**-gene** 表示“基因”。合起来强调:这类基因在正常情况下是“肿瘤相关基因的前身/前体”,一旦异常就可能与肿瘤形成相关。

相关词 Related Words

文献与作品 Literary Works

  • Molecular Biology of the Cell(《细胞的分子生物学》) 常在细胞信号与癌症章节讨论 proto-oncogene
  • The Biology of Cancer(Robert A. Weinberg,《癌症生物学》) 系统阐述原癌基因到癌基因的机制与案例。
  • Molecular Cell Biology(《分子细胞生物学》) 在细胞周期、信号通路与肿瘤发生相关内容中频繁出现该术语。
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