一种修饰通过通过YTHDF2促进P体中的TM4SF1mRNA降解来调节肌肉发育
Wenxiu Ru1, Jie Cheng2, Yuee Gao3
1College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China; Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, college of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
International journal of biological macromolecules
|January 8, 2025
概括
N6-甲基氨酸 (m6A) 通过控制TM4SF1mRNA水平来调节肌肉发育. METTL3增强了m6A的修改,影响了髓细胞的增殖和分化.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 肌肉的发展 肌肉的发展
背景情况:
- N6-甲基氨酸 (m6A) 是一个关键的转录后修饰影响细胞过程.
- m6A在肌肉发育中的特定作用在很大程度上仍未被阐明.
研究的目的:
- 为了研究肌肉发育中的m6A修改的机制.
- 为了识别参与m6A调节肌体形成的关键分子.
主要方法:
- 在肌肉细胞生长 (GM) 和分化 (DM) 期间分析m6A和METTL3水平.
- 在C2C12和牛肌细胞中进行基因缺失和过度表达研究.
- 一个测序 (MeRIP-seq) 来识别目标转录.
- 在小鼠体内进行的活体救援实验.
主要成果:
- 在肌肉细胞分化过程中,METTL3和m6A水平增加.
- 删除METTL3促进了增殖,抑制了分化,降低了m6A水平.
- TM4SF1被确定为参与肌肉发育的m6A调节基因.
- 在METTL3中介的m6中,一个对TM4SF1的修改通过YTHDF2和P体LLPS促进了其降解.
- 在体内,METTL3的过度表达会挽救TM4SF1过度表达引起的肌体发生障碍.
结论:
- 一个修改,特别是由METTL3介导,在调节肌肉发育中起着至关重要的作用.
- TM4SF1是m6A驱动的肌肉发育途径的一个关键下游效应因子.
- 在调节肌肉再生的P体中提出了一种新的m6A介导的mRNA降解模型.
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