核受体-SINE B1网络调节了叶芽细胞和叶芽细胞的扩展多能性
Ka Wai Wong1, Yingying Zeng1,2, Edison Tay1
1Cell Fate Engineering and Therapeutics Lab, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Republic of Singapore.
Nature communications
|November 20, 2024
概括
科学家们发现了一种内在的程序,由核受体亚家族1,H组,成员2 (Nr1h2) 驱动,这对于布拉斯托和早期胚胎发育至关重要. Nr1h2重新连接干细胞,增强状体的形成和体内贡献.
科学领域:
- 发展生物学 发展生物学
- 干细胞生物学 干细胞生物学
- 遗传学 是一个遗传学.
背景情况:
- 胚胎干细胞 (ESCs) 可以自我组织成类似胚胎细胞的结构 (blastoids).
- 黑体是研究早期胚胎发生的有价值的模型.
- 状体形成的内在调节者在很大程度上是未知的.
研究的目的:
- 为了确定控制布拉斯形成的内在调节剂.
- 了解这些调节器在胚胎早期发育中的作用.
- 描述了Blastoid发育背后的分子机制.
主要方法:
- 开发指标,以评分与小鼠胚胎囊的类似性.
- 在布拉斯托病毒中对差异性基因调节激活的分析.
- 功能性研究涉及特定基因的废除和激活 (Nr1h2).
- 综合性多组学分析 (转录组,表观基因组,染色质可访问性).
主要成果:
- 确定了对跨物种的黑体和黑囊细胞至关重要的内在程序.
- 核受体子家族1,H组,成员2 (Nr1h2) 对于布拉斯体的形成至关重要.
- Nr1h2的激活会在ESC中诱导一种独特的多能性状态,促进状体的形成,并增强体内植入和血统贡献.
- Nr1h2 调节涉及胚胎血统规范和 SINE-B1 移植元素的基因.
结论:
- Nr1h2 是一个关键的内在调节者,对布拉斯托体和早期胚胎发育.
- 以Nr1h2为中心的程序控制了血统规范和发展潜力.
- 这项研究使用基于干细胞的模型,为早期胚胎发生的基本机制提供了洞察力.
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