YY2-DRP1轴调节线粒体裂变并确定癌症干细胞不对称的分裂
Mankun Wei1,2, Uli Nurjanah1,2, Juan Li1,2
1Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|June 10, 2023
概括
阴阳2 (YY2) 通过调节线粒体裂变来抑制肝癌干细胞 (CSC) 分裂. 较低的YY2水平与预后不佳相关,这表明YY2是耗尽CSC的治疗目标.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 细胞生物学 细胞生物学
背景情况:
- 癌症干细胞 (CSC) 驱动瘤的进展,复发和治疗耐药性.
- 不对称的分裂维持了CSC池,产生了CSC和过境放大细胞.
- 了解CSC分裂机制对于开发有效的抗瘤策略至关重要.
研究的目的:
- 为了确定癌症干细胞维护的新型调节剂.
- 阐明阴阳2 (YY2) 在肝细胞分裂和瘤进展中的作用.
- 探索YY2作为肝癌治疗点的潜力.
主要方法:
- 交叉奥米学分析以确定YY2作为CSCs的调节者.
- 在肝癌细胞系和患者样本中分析YY2表达.
- 功能性研究涉及YY2过度表达和肝脏CSC模型中淘汰.
- 调查YY2的机制,涉及线粒体动力学和胺相关蛋白1 (DRP1) 转录.
主要成果:
- 在肝癌和肝癌中,YY2的下调,与疾病进展和不良预后相关.
- YY2过度表达抑制肝脏CSC不对称的分裂,耗尽CSC池,并减少瘤开始.
- YY2 缺乏会增强线粒体功能,并通过抑制 DRP1 转录来损害线粒体裂变,从而影响 CSC 非对称的分裂.
结论:
- YY2通过调节线粒体动力学来作为肝脏CSC维护的新型负调节剂.
- 在抑制不对称的CSC分裂方面YY2的作用突出了其作为瘤抑制剂的功能.
- YY2代表了一个潜在的治疗点,用于消耗CSC和治疗肝癌.
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