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人类甲基基因组的转录组概况:母体基因组在早期胚胎发育过程中的贡献

Xavier Vendrell¹, Pedro De Castro², Laura Escrich³

¹Reproductive Genetics Department, Sistemas Genómicos-Eurofins, Valencia, Spain.

|December 10, 2025

概括

这项研究揭示了一种结构化的母体程序,通过使用 partenogenotes 控制早期人类发育. 关键的转录因子和母性效应基因在胚胎基因组激活 (EGA) 之前指导发育.

科学领域:

发展生物学发展生物学
基因组学就是基因组学.
生殖医学生殖医学

背景情况:

早期人类胚胎发生依赖于胚胎基因组激活 (EGA) 之前的母亲因素.
了解母亲的贡献对于生殖技术至关重要.

研究的目的:

在早期人类胚胎发生过程中,描述母性效应基因 (MEG) 和转录因子 (TF) 的转录动态.
使用人类单亲亲生生物结构 (parthenogenotes) 调查母亲基因组的调控作用.

主要方法:

在前四个细胞周期中对19个人类甲基细胞进行单细胞转录组分析.
对转录丰度,TF表达,差异表达基因 (DEGs) 和通路丰富的分析.
评估EGA的转录复杂性和时间.

主要成果:

转录复杂性增加,第三和第四细胞周期的重大转变与EGA相吻合.
在第三和第四个周期中确定了212个和1515个DEG,与RNA生物合成和细胞增殖有关.
关键TFs (DUXA,DUX4,Elk-1,E2F-1,Sp1) 涉及细胞循环调节;MEGs显示有结构的衰变和持久性模式.

结论:

第一个全面的单细胞转录基因数据的人类parthenogenotes.
有关基因组驱动的孕产妇计划的证据,调节早期发育前EGA.
确定了对孕产妇监管至关重要的关键TF和MEG,可能改善辅助生殖技术.

关键词:

通过RNA测序进行RNA测序.一个单亲的生物结构.人类帕基基诺特母性影响基因母性影响基因单细胞转录基因分析

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