在肝细胞癌中,DAP3通过调节MT-ND5表达来促进线粒体活性和瘤进展
Siyu Tan1,2, Xiao Zhang1, Xiaowei Guo2
1Department of General Surgery, Qilu Hospital, Shandong University, Jinan, 250012, China.
Cell death & disease
|July 30, 2024
概括
线粒体蛋白DAP3通过增强线粒体呼吸和调节MT-ND5表达来促进肝细胞癌 (HCC) 的进展. 对于HCC患者来说,DAP3是潜在的治疗点.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 线粒体生物学 线粒体生物学
背景情况:
- 癌细胞表现出碎片化的线粒体和改变的线粒体动态.
- 在癌症中驱动这些线粒体失调的确切机制尚不清楚.
研究的目的:
- 研究线粒体蛋白死亡相关蛋白3 (DAP3) 在肝细胞癌 (HCC) 进展中的作用.
- 阐明DAP3影响HCC细胞行为和线粒体功能的分子机制.
主要方法:
- 在体外和体内测试以评估HCC细胞的增殖,迁移和入侵.
- 分析线粒体呼吸,表皮-介质细胞过渡 (EMT) 和细胞衰老.
- 研究DAP3与MT-ND5的相互作用以及AKT介导酸化在Ser185.5中的作用.
主要成果:
- DAP3局部化到线粒体,促进HCC的扩散,迁移和入侵.
- DAP3增加了线粒体呼吸,诱导了EMT,并减少了细胞衰老.
- 通过调节MT-ND5的翻译和表达,DAP3增强了线粒体复合体I的活动.
- 在Ser185中,DAP3的AKT介导酸化对其线粒体功能至关重要.
- 在HCC中,DAP3表达与患者存活率相反相关.
结论:
- 通过增强线粒体功能和MT-ND5调节,DAP3促进HCC的进展.
- DAP3代表了肝细胞癌的潜在治疗标.
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