通过劫持翻译机械,SRC促进了瘤细胞的入侵
Benjamin Bonnard1, Anouk Chatefau1, Cyril Dourthe2
1Bordeaux Institute of Oncology, BRIC U1312, INSERM, Université de Bordeaux, 33076 Bordeaux, France.
Cell reports
|February 24, 2026
概括
该Src瘤基因通过调节mRNA翻译和真核细胞翻译启动因子3 (eIF3) 复合体表达来控制癌细胞的侵入性. 这影响了内体细胞体的形成,细胞外基质的降解和肝细胞癌 (HCC) 的进展.
科学领域:
- 分子瘤学分子瘤学
- 癌细胞生物学 癌细胞生物学
- 信号传导传导是指信号的传导.
背景情况:
- 这种Src瘤基因与癌细胞的侵入性有关.
- 在细胞外基质 (ECM) 降解过程中,内体对细胞外基质 (ECM) 降解至关重要.
- 欧核细胞转化启动因子3 (eIF3) 复合体对于内体维护至关重要.
研究的目的:
- 调查Src在调节mRNA翻译中的作用及其对内体形成的影响.
- 为了确定Src如何影响eIF3子单元的表达和功能.
- 探索Src,eIF3子单位和肝细胞癌 (HCC) 预后之间的相关性.
主要方法:
- 研究了Src对mRNA翻译和eIF3亚单元表达的调节 (eIF3h,eIF3e,eIF3d).
- 分析了Src对正规 (通过PI3K/AKT/mTOR依赖eIF4E) 和非正规翻译的调制.
- 与HCC患者预后和瘤侵入性相关的Src和eIF3h/e/d过度表达.
主要成果:
- Src调节mRNA翻译,并控制关键eIF3子单元 (eIF3h,eIF3e,eIF3d) 的表达.
- Src调节了对内体功能必不可少的正规和非正规翻译通路.
- 过度表达Src和eIF3亚单元与HCC预后不佳,ECM降解增加和瘤侵入性相关.
结论:
- Src是翻译启动的关键调节者,影响着内体形成和ECM降解.
- Src介导的翻译控制有助于瘤细胞的入侵.
- Src和eIF3子单位作为HCC的潜在预后标志物.
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