替代分离和基因调节网络的单细胞分析揭示了人类早期胚胎发育期间显著的表达和调节动态
Jiwei Chen1,2, Gaigai Wei3, Fangge Sun2,4
1Center for Bioinformatics and Computational Biology, and Shanghai Key Laboratory of Regulatory Biology Institute of Biomedical Sciences, School of Life Sciences, East China Normal University Shanghai China.
FASEB bioAdvances
|July 11, 2025
概括
这项研究揭示了人类胚胎发育期间基因表达,替代拼接和调节网络的动态变化. 这些变异随着时间的推移而减少,并且在两性之间存在差异,为发育生物学提供了洞察力.
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:
- 单细胞RNA测序 (scRNA-seq) 提升了对基因表达变异性的理解.
- 很少有scRNA-seq研究在早期人类胚胎中详细介绍了异形和外体水平表达动态.
- 缺乏在人类早期胚胎发育过程中对基因表达动态的系统研究.
研究的目的:
- 系统地探索人类早期胚胎发育中的基因表达动态.
- 将基因表达水平与替代拼接,异形切换和调控网络相结合.
- 为发育生物学和疾病研究提供对基因动态特征的见解.
主要方法:
- 利用来自人类早期胚胎 (E3-E7) 的单细胞RNA测序 (scRNA-seq) 数据.
- 对基因表达水平,替代拼接和异形切换的综合分析.
- 探索了基因调节网络和转录因子结合基因 (TFBM).
主要成果:
- 基因表达,拼接和异型使用发生显著变化的基因从E3减少到E7.
- 这些变异是互补的,并且在不同发育阶段和性别之间存在显著差异.
- 更多的基因显示出替代拼接和异型切换变异,而不是在E3.3时性别之间的表达水平变化.
- 确定了特定阶段的基因调控模块和动态TFBM使用.
结论:
- 这项研究为人类早期胚胎发育期间的基因动态特征提供了全面的见解.
- 对表达,拼接和监管网络的综合分析加深了对发育过程的理解.
- 这些发现有助于基本的发育生物学,并对再生医学和发育性疾病产生影响.
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