通过MEG3:EZH2对整体蛋白表达的表观遗传调节来控制内皮细胞功能和动脉生成
Hywel Dunn-Davies1, Tatiana Dudnakova2, Antonella Nogara2
1Wellcome Centre for Cell Biology, University of Edinburgh, Michael Swann Building Max Born Crescent, King's Buildings, Edinburgh EH9 3BF, UK.
Molecular therapy. Nucleic acids
|April 15, 2024
概括
母体表达的基因3 (MEG3) 指导EZH2抑制ITGA4,影响内皮功能. 抑制这种相互作用促进ITGA4表达,并改善缺血性损伤后内皮细胞迁移和动脉生成.
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.
- 心血管研究研究心血管研究
背景情况:
- 长非编码RNAs (lncRNAs) 调节内皮细胞的基因表达,但内皮细胞功能障碍的机制尚不清楚.
- 增强质同源2 (EZH2) 通过H3K27me3抑制内皮位,但其RNA结合能力和相互作用在后缺血性血管生成中尚未探索.
研究的目的:
- 调查内皮细胞中EZH2和RNA之间的功能相互作用,特别是在后缺血性血管生成的背景下.
- 阐明母体表达基因3 (MEG3) 在调节EZH2招募和内皮基因表达中的作用.
主要方法:
- 利用甲/紫外线辅助的交叉链接绑定和混合物测序 (CLASH) 来识别RNA:RNA相互作用.
- 进行了EZH2-染色体免疫沉 (ChIP) 试验,以评估EZH2/H3K27me3的招募.
- 进行了MEG3倒置和EZH2抑制 (A-395) 实验在体外和体内小鼠模型.
主要成果:
- 确定了MEG3作为主要的RNA,在内皮细胞中与EZH2形成混合结构,促进染色质的招募.
- 证明MEG3的枯竭会破坏EZH2/H3K27me3对ITGA4发起者的结合.
- 表明MEG3倒置和EZH2抑制都会增加ITGA4的表达,增强内皮细胞迁移,粘附,并促进小鼠的动脉生成.
结论:
- MEG3在引导EZH2抑制内皮细胞中ITGA4表达方面发挥着至关重要的作用.
- 针对MEG3:EZH2相互作用提供了一种潜在的治疗策略,以改善内皮功能并促进缺血损伤后的恢复.
关键词:
奇尔普 奇尔普在 EZH2 中使用.在MEG3中,MEG3是MEG3,MEG3是MEG3.MT:RNA和表观遗传编辑 特别版在 PRC2 中,PRC2 是 PRC2 的第一个类型.有关RNA结合的RNA.动脉的产生是动脉的产生.它们是内皮细胞的内皮细胞.肢体缺血症 肢体缺血症在ncRNA中,我们可以这是一个多重复合材料.更多相关视频
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