FTO依赖的m6A以NFATC1-YTHDF2依赖的方式调节肌肉纤维重塑
Wengang Wang1, Xueming Du2, Ming Luo3
1Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
Clinical epigenetics
|July 5, 2023
概括
FTO基因影响了青少年异常学脊椎病 (AIS) 中缓慢抽的肌肉纤维的形成. 它在AIS患者的副脊髓肌肉中的表达不对称性可能通过施罗特练习可逆.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 整形外科 整形外科 整形外科
背景情况:
- 青少年异常学脊椎病 (AIS) 与低瘦质量和副脊柱肌肉失衡有关,但潜在的遗传因素尚不清楚.
- FTO基因是已知的AIS易感基因,但它在副脊柱肌肉不对称性中的特定作用需要进一步研究.
研究的目的:
- 研究FTO在小鼠肌细胞的增殖,迁移和分化中的功能.
- 阐明FTO在肌肉纤维改造中的调节作用,体外和体内.
- 确定FTO在肌肉纤维重塑中的下游目标和机制,并评估其在AIS副脊髓肌肉中的表达.
主要方法:
- 研究了FTO在小鼠肌囊细胞行为和肌肉纤维重塑中的作用.
- 确定了FTO的下游目标和m6A阅读器.
- 分析了来自AIS患者的副脊髓肌肉样本 (有/没有施罗特练习) 和先天性脊椎病控制器的纤维类型,基因表达和FTO水平.
主要成果:
- 在小鼠中,FTO通过NFATC1脱甲基化促进慢肌纤维的形成,防止YTHDF2介导的降解.
- 在AIS患者中,I型纤维,MYH7/MYH7B表达和面的FTO水平降低,与FTO表达呈正相关性.
- 在AIS中肌肉纤维和FTO表达不对称性反映了先天性脊椎病,并通过施罗特练习部分逆转.
结论:
- 通过一个依赖NFATC1-YTHDF2的通路,FTO支持缓慢缩纤维的形成.
- 这些发现表明,FTO在肌肉纤维重塑中起着作用,这是脊椎病的次要原因,有治疗干预的潜力.
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