PRDM3/16调节NKX2-1介导的膜上皮分化和功能所需的染色质可访问性
Hua He1,2, Sheila M Bell3, Ashley Kuenzi Davis3
1Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China. Hua.he@scu.edu.cn.
Nature communications
|September 16, 2024
概括
基因组甲基转移酶PRDM3和PRDM16对于肺部发育至关重要. 它们的缺失会导致呼吸衰竭,因为它会损害膜上皮细胞的分化和功能.
科学领域:
- 肺部医学 肺部医学
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 转录因子NKX2-1对肺部发育和分化至关重要.
- 在膜上皮细胞分化的染色质可访问性和协同激活剂相互作用的机制仍然不清楚.
研究的目的:
- 研究PRDM3和PRDM16在调节肺发育过程中的染色质可访问性和NKX2-1标中的作用.
- 了解PRDM3和PRDM16如何影响膜上皮细胞的分化和功能.
主要方法:
- 在早期肺内皮中,Prdm3和Prdm16的联合删除.
- 单细胞RNA-seq,批量ATAC-seq以及CUT&RUN分析.
- 在膜2型 (AT2) 细胞中,PRDM3/16的谱系特异性删除.
主要成果:
- Prdm3和Prdm16的联合删除导致了由于呼吸衰竭,AT2细胞的丧失和AT1细胞的积累而导致的围产死亡.
- 已经证明PRDM3和PRDM16可以调节AT2细胞分化和表面活性剂平衡所必需的关键NKX2-1点的染色质可访问性.
- 在AT2细胞中失去PRDM3/16导致了血统不忠,细胞采用了部分AT1命运.
结论:
- 膜上皮细胞分化的NKX2-1-依赖调节是由通过PRDM3和PRDM16进行表观基因组调节的介导.
- 在肺发育过程中,PRDM3和PRDM16是维护AT2细胞身份和功能的关键表观遗传调节剂.
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