从癌细胞中通过MIRO2介导的线粒体转移诱导与癌症相关的纤维细胞分化
Michael Cangkrama1, Huan Liu2, Xiaoyu Wu2
1Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Zurich, Switzerland. michael.cangkrama@biol.ethz.ch.
Nature cancer
|August 28, 2025
概括
癌细胞将线粒体转移到纤维细胞,从而产生与癌症相关的纤维细胞 (CAF),这些纤维细胞促进瘤的生长. 向线粒体转移蛋白MIRO2可能会抑制癌症的进展.
科学领域:
- 细胞生物学
- 癌症生物学
- 瘤微环境
背景情况:
- 癌症相关纤维细胞 (CAF) 是瘤微环境的关键组成部分.
- CAF通常会促进癌症的发展和进展.
研究的目的:
- 研究癌细胞衍生的线粒体在诱导原始CAF特征中的作用.
- 阐明线粒体转移的机制及其对瘤生长的影响.
主要方法:
- 用同培养和异种植的瘤模型来研究癌细胞与纤维细胞的相互作用.
- 评估了功能性线粒体从癌细胞转移到纤维细胞.
- 研究了MIRO2在线粒体转移和CAF分化中的作用.
- 在临床前小鼠模型中评估瘤形成.
主要成果:
- 癌细胞将功能性线粒体转移到纤维细胞,诱导原源CAF的特征.
- 线粒体转移导致新陈代谢变化,CAF标记体表达,以及原原体的分泌体和母体体的释放.
- 线粒体转移依赖于线粒体贩运蛋白MIRO2.
- 癌细胞中MIRO2的耗尽抑制了线粒体转移,CAF分化和瘤生长.
- 在皮肤上皮癌前沿的瘤细胞中,MIRO2的表达过度.
结论:
- 线粒体从癌细胞转移到纤维细胞是一种推动瘤发生的新机制.
- MIRO2对于这一过程至关重要,并代表一种潜在的治疗点.
- 针对MIRO2和线粒体转移可能为各种恶性瘤的癌症治疗提供新的策略.
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