转录因子介导的基因调控网络在卵细胞的形成过程中
Di Wu1, Zifan Liang2, Ziqi Li2
1Dong Guan Guang Ji Hospital, Dong Guan, Guangdong 523000, China.
Reproduction, fertility, and development
|July 10, 2025
概括
研究人员确定了从胚胎干细胞 (ESC) 中参与卵细胞形成的关键转录因子 (TF) 和基因. 这项研究增强了对基因调控网络 (GRNs) 的理解,以改善体外卵细胞分化,可能有助于治疗女性不孕症.
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
- 基因组学和生物信息学
背景情况:
- 在体外诱导胚胎干细胞 (ESC) 的卵细胞是治疗女性不孕症的一个有前途的方法.
- 控制卵细胞形成的分子机制需要进一步研究.
- 了解转录因子 (TF) 介导的基因调节网络 (GRNs) 对这一过程至关重要.
研究的目的:
- 在体外查诱导ESC分化成卵子细胞的因素.
- 在卵细胞形成过程中构建TF介导的GRNs.
- 识别卵细胞特异性TF和参与卵细胞生成的关键基因.
主要方法:
- 权重基因共同表达网络分析 (WGCNA) 应用于多omics数据.
- 分析ESC,原始生殖细胞 (PGC) 和卵细胞的ATAC-seq和DNase-seq数据.
- 染色体免疫沉 (ChIP) 测序和ChIP-qPCR用于检查GRN.
主要成果:
- 确定了5个 (人类) 和3个 (老鼠) 卵细胞特异性TF.
- 使用RNA测序和WGCNA发现了38个关键的卵细胞特异基因.
- 在小鼠和人类卵细胞中发现了三种重叠的TFs (NFYA,NFYB,NFYC),NFYA显示出显著增加Alkbh5促进体的表达和丰富.
结论:
- 这项研究提供了关于细胞特异性TF和TF介导的GRN在卵细胞形成中的初步见解.
- 确定了新的卵细胞特异性基因和关键TFs,包括NFYA.
- 这些发现表明,这些调控机制对于提高体外ESC-to-oocyte分化的效率至关重要.
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