单细胞多组学分析显示,CTCF是肺形态发生和原始细胞维持的关键调节者
Shenfei Sun1, Yamei Jiang2,3, Fujing Huang2
1State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Institutes of Biomedical Sciences, School of Life Sciences, Inner Mongolia University, Hohhot, China. 111991070@imu.edu.cn.
Nature communications
|November 28, 2025
概括
这项研究揭示了关键的基因调节者,如CCCTC结合因子 (CTCF),对于胚胎肺部发育和分支形态发生是必不可少的. 它提供了一个详细的多学科地图,以了解肺组织形成和细胞分化.
科学领域:
- 发展生物学 发展生物学
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 胚胎肺部的发育涉及复杂的分支形态发生和近端-远端模式.
- 引导肺部发育的基因调节程序尚未完全理解.
研究的目的:
- 为了创建一个全面的单细胞多omics图谱的小鼠胚胎肺.
- 确定参与肺发育的基因调节网络和转录因子.
主要方法:
- 集成的单细胞基因表达和染色体可访问性概况.
- 系统分析以确定细胞类型, cis 调节元件和峰值与基因联系.
- 使用Ctcf条件淘汰赛小鼠模型进行功能验证.
主要成果:
- 在胚胎肺部鉴定出13种不同的细胞类型.
- 映射了 cis 调节元件和转录因子,包括激活蛋白-1 复合体和 CCCTC 结合因子 (CTCF).
- 通过基因表达和染色体可访问性调节,证明了CTCF在肺前体维持和分支形态发生中的关键作用.
结论:
- 这项研究为胚胎肺发育研究提供了宝贵的多学科资源.
- 揭示了对控制肺形态发生的转录调节的机制性见解.
- 突出了CTCF作为肺前细胞命运和结构发展的关键调节者.
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