对于N6-甲基氨酸修饰的自激活是必要的,以调节肝细胞癌中的ferroptosis
Yujia Li1, Mei Guo2, Yangling Qiu1
1Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
Redox biology
|December 6, 2023
概括
这项研究揭示了m6A的修饰如何调节肝细胞癌 (HCC) 中的铁. 抑制WTAP或YTHDC2抑制了铁和HCC的生长,为这种癌症提供了新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 铁化是一种有前途的肝细胞癌 (HCC) 治疗方法,但其机制尚不清楚.
- 在HCC铁中m6A修饰的作用仍然在很大程度上未被探索.
- 这项研究调查了m6A修饰对HCC铁亡的调节影响.
研究的目的:
- 为了阐明m6A在肝细胞癌 (HCC) 铁化中的调节作用.
- 确定参与HCC中m6A介导铁灭调节的关键分子参与者.
- 探索针对m6A修改HCC治疗的治疗潜力.
主要方法:
- 定量性m6ARNA甲基化试验 (Dot blot,EpiQuik套件). 这种试验的结果是:
- MeRIP-qPCR和RIP-qPCR用于识别更多的A-修改目标.
- 在体内异种移植瘤模型 (BALB/c裸体小鼠) 和患者衍生器官模型.
主要成果:
- 在HCC中观察到铁和高m6A修饰水平之间存在显著的相关性.
- 确定了一种依赖于YTHDC2的ATG5mRNA的WTAP介导的m6修饰.
- 抑制WTAP或YTHDC2抑制了ferroptosis和HCC发育在体外和体内.
结论:
- 在转录后,WTAP通过一个m6A-YTHDC2依赖的途径对ATG5的表达进行上调调节,在HCC中ferroptosis期间促进ATG5mRNA转换.
- 针对m6轴A-YTHDC2-ATG5为HCC提供了一个新的治疗策略.
- 通过m6A修饰诱导铁亡为HCC治疗提供了一个有前途的途径.
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