V2EX rna interference

RNA Interference

释义 (Definition)

RNA干扰(RNAi):一种细胞内的基因调控机制,通常由小RNA(如 siRNA、miRNA)引导,使特定mRNA 被降解或翻译被抑制,从而“沉默”相应基因的表达。常用于研究基因功能,也与抗病毒防御等过程相关。

发音 (Pronunciation, IPA)

/rne ntrfrns/

例句 (Examples)

RNA interference can silence a gene without changing the DNA sequence.
RNA干扰可以在不改变DNA序列的情况下沉默一个基因。

By introducing a specific siRNA, the researchers used RNA interference to reduce the expression of the target protein and observe its effects on cell growth.
研究人员通过引入特定的siRNA,利用RNA干扰降低目标蛋白的表达,并观察其对细胞生长的影响。

词源 (Etymology)

RNA interference 直译为“RNA 的干扰”。该术语在现代分子生物学语境中用来描述:由双链RNA小干扰RNA触发的一类过程,会“干扰”基因信息从 mRNA 到蛋白质的表达流程。常见缩写为 RNAi,其中 interference 强调“阻断/抑制”的作用。

相关词 (Related Words)

文献与作品示例 (Notable Works)

  • Andrew Fire & Craig C. Mello 等(1998),Nature:提出并实验证明双链RNA可在秀丽隐杆线虫中触发序列特异性的基因沉默(RNAi 的里程碑论文)。
  • Molecular Biology of the Cell(Alberts 等):在基因表达调控与小RNA章节中系统介绍 RNA interference 的机制与实验用途。
  • Molecular Cell Biology(Lodish 等):讲解 siRNA/miRNA 通路、RISC 复合体与 RNAi 在研究中的应用。
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