FTO蛋白调节TGF-β信号通路,通过RNAN6-甲基氨酸修饰来诱导不明原因的复发性自发性流产
Jun Zhang1, Xinqiong Liu1, Yali Gao2
1Department of Reproductive Medicine, Obstetrics and Gynecology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University), China.
The FEBS journal
|January 21, 2024
概括
异常的RNA m6A修饰,特别是增加的FTO蛋白质,抑制MEG3稳定性和TGF-β1表达,影响未解释的复发性自发性流产 (URSA) 中的热囊细胞功能. 这揭示了URSA的新型治疗点.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- RNA N6-甲基氨酸 (m6A) 修饰对于胚胎发育至关重要.
- 异常m6ARNA修饰在不明原因的复发性自发性流产 (URSA) 中的作用尚不清楚.
研究的目的:
- 为了研究RNA m6A修饰和URSA之间的关系.
- 阐明异常m6A修饰影响URSA中的热囊细胞功能的分子机制.
主要方法:
- 点点,RNA m6A量化,MeRIP-Seq,RNA-Seq,RNA拉下,RIP,电泳运动转移试验,RNA稳定性试验,BrU免疫沉追逐,ChIP.
- 在URSA热原体和胎盘组织中分析m6A甲基转移酶,YTHDC1,MEG3,EZH2和TGF-β1.
主要成果:
- 在URSA trofhoblasts中增加的FTO蛋白导致MEG3 m6A修饰减少,并减少YTHDC1-介导的MEG3稳定.
- 发现MEG3将EZH2招募到TGF-β1促进体,抑制其表达.
- 在URSA中,MEG3-TGF-β1通路的FTO介导调节抑制了热囊细胞的入侵和增殖.
结论:
- 异常的FTO介导的RNA m6A修改MEG3破坏了MEG3-TGF-β1通路,导致URSA.
- 针对FTO-MEG3-TGF-β1轴为URSA提供了一个潜在的治疗策略.
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