氧化酸化受损导致原发性瘤脱离和转移
bioRxiv : the preprint server for biology
|January 20, 2025
概括
被破坏的线粒体新陈代谢,特别是氧化酸化受损,驱动上皮细胞转移到介质酶 (EMT) 和癌症转移. 抑制NDUFA4L2可以防止EMT和瘤逃逸,为转移性癌症提供新的治疗点.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 代谢过程中的代谢.
背景情况:
- 转移是癌症死亡的主要原因,涉及复杂的细胞过渡.
- 皮质到介质细胞过渡 (EMT) 对于癌细胞脱离,迁移和原发性瘤脱离至关重要.
- 转移期间的新陈代谢可塑性仍然不太了解.
研究的目的:
- 调查代谢变化在驱动EMT和早期转移中的作用.
- 识别特定的代谢途径和参与癌细胞迁移和入侵的分子.
主要方法:
- 对细胞癌 (RCC) 患者样本的分析.
- 研究NDUFA4L2在调节线粒体代谢和EMT中的功能.
- 使用基因操纵 (删除和过度表达) 的NDUFA4L2.2.
- 检查患者衍生的瘤中被破坏的氧化酸化的影响.
主要成果:
- 线粒体电子运输抑制剂NDUFA4L2在EMT驱动的RCC细胞中被上调.
- 删除NDUFA4L2增强氧化代谢,抑制EMT和转移.
- NDUFA4L2过度表达通过抑制氧化酸化和改变色素可访问性来促进EMT和转移.
- 线粒体代谢受损,如在酸盐酸酶突变的RCC中所见,与高转移潜力和EMT相关.
结论:
- 被破坏的氧化代谢和线粒体损伤是EMT和原发性瘤脱离的关键驱动因素.
- NDUFA4L2在调节促进转移的代谢变化方面发挥着至关重要的作用.
- 准线粒体动力学是预防癌症转移和改善患者治疗结果的有希望的策略.
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