FUNDC1通过RAC1相互作用和ferroptosis抑制驱动胆管癌的进展
Xuanming Luo1, Min Li1, Yuda Gong1
1Department of Biliary Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Department of General Surgery, Shanghai Xuhui Central Hospital, Fudan University, Shanghai, China; Biliary Tract Disease Center of Zhongshan Hospital, Fudan University, China; Cancer Center, Zhongshan Hospital, Fudan University, China; Biliary Tract Disease Institute, Fudan University, China; Shanghai Engineering Research Center of Biliary Tract Minimal Invasive Surgery and Materials, China.
International journal of biological macromolecules
|July 18, 2025
概括
FUNDC1蛋白在胆管癌 (CCA) 中升高,通过铁灭促进癌症的进展. 针对FUNDC1和RAC1可能为这种致命的胆道癌症提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 胆管癌 (CCA) 是一种致命的胆管癌,治疗选择有限.
- 在CCA中,FUND14域含蛋白1 (FUNDC1) 的表达升高.
- 线粒体功能障碍和铁亡与癌症进展有关.
研究的目的:
- 调查FUNDC1在CCA进展中的作用.
- 探索FUNDC1,线粒体功能和CCA中的铁亡之间的关系.
- 为了确定CCA的潜在治疗点.
主要方法:
- 在CCA组织和细胞系中分析FUNDC1表达.
- 评估线粒体膜潜力 (MMP),反应性氧物种 (ROS) 和谷氨 (GSH) 水平.
- 研究的铁灭菌标志物 (Gpx4,SLC7A11,NCOA4). 这些标志物
- 使用免疫沉研究了FUNDC1和RAC1之间的相互作用.
- 在体内评估了FUNDC1和RAC1对瘤生长的影响.
主要成果:
- 在CCA中,FUNDC1的表达显著高于正常组织,与预后不佳相关.
- FUNDC1 knockdown 破坏了线粒体膜潜力,增加了 ROS,并改变了 CCA 细胞中的铁亡标志物.
- FUNDC1与RAC1相互作用,这种相互作用对于FUNDC1诱导的恶性转变至关重要.
- 在FUNDC1中断诱导铁亡,而RAC1中断却没有,但两者都在体内减少瘤体积.
- FUNDC1通过线粒体功能依赖的铁死促进了CCA的进展.
结论:
- 在促进CCA发展方面,FUNDC1发挥着至关重要的作用.
- 由线粒体功能障碍和RAC1相互作用介导的FUNDC1诱导的铁,驱动CCA恶性病变.
- 在胆管癌治疗中,FUNDC1 是一个有前途的治疗点.
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