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m6A阅读器YTHDF1通过MFG-E8翻译以一种依赖的方式减轻 fulminant 肝炎

Meng-Yun Ke^1,2, Yi Fang^1,2, Hui Cai³

¹National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi'an Jiaotong University, 277 West Yanta Road, Xi'an 710061, Shaanxi Province, China.

International journal of biological sciences

|August 11, 2023

概括

这项研究显示,YTHDF1是一种RNA调节剂,通过增强MFG-E8蛋白转化,从而恢复线粒体功能并减少肝损伤,从而防止发性肝炎.

科学领域:

分子生物学分子生物学
肝病学肝病学是一种肝病学.
基因组RNA的修改基因组RNA的修改

背景情况:

N6-甲基氨酸 (m6A) 是真核生物中关键的RNA修饰.
m6A在 fulminant 肝炎中的作用在很大程度上是未知的.
在发性肝炎中,YTHDF1的表达下降.

研究的目的:

研究YTHDF1在 fulminant肝炎中的保护作用.
阐明YTHDF1的功能背后的分子机制.

主要方法:

使用YTHDF1淘汰和过度表达小鼠建立了发性肝炎模型.
初级肝细胞被用于体外LPS攻击.
评估了肝损伤,细胞死亡,氧化应激和线粒体功能.
采用多组体分析来识别分子标.

主要成果:

缺少YTHDF1会导致肝损伤,亡和线粒体功能障碍的恶化.
YTHDF1过度表达改善了这些效应.
YTHDF1直接针对MFG-E8,以一种m6A依赖的方式促进其翻译.
MFG-E8的使用逆转了YTHDF1缺乏引起的肝损伤.

结论:

通过增强MFG-E8翻译,YTHDF1可以预防发性肝炎.
这一过程缓解细胞死亡,增强抗氧化能力,并恢复线粒体功能.
通过m6A依赖机制,YTHDF1在减轻肝损伤方面起到关键的调节作用.

关键词:

严重的肝衰竭是急性肝衰竭.在MFG-E8中使用.线粒体中的线粒体.在 YTHDF1 的位置上.m6A 一个很好的.

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