在I型选择性胎儿生长限制中发生的胎盘表观遗传和转录失调
Yan Bi1, Jiawen Yang1, Yucheng Hu1
1International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
Placenta
|July 17, 2025
概括
这项研究揭示了I型选择性胎儿生长限制 (sFGR) 胎盘中的关键表观遗传和转录变化. 它将HK2确定为与缺氧和代谢压力相关的中央调节器,为sFGR提供潜在的治疗点.
科学领域:
- 生殖生物学 生殖生物学
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 一类选择性胎儿生长限制 (sFGR) 在单胆双眼 (MCDA) 双胞胎中提出了复杂的分子挑战.
- 了解潜在的表观遗传和转录机制对于开发有针对性的干预措施至关重要.
研究的目的:
- 阐明在MCDA双胞胎怀孕中驱动I型sFGR的表观遗传和转录机制.
- 确定参与sFGR胎盘发育的关键调节基因和途径.
主要方法:
- 从9个MCDA双胞胎对与I型sFGR.的胎盘组织的综合性多omics分析.
- 使用染色体可访问性分析 (ATAC-seq),DNA甲基化微阵列和RNA测序.
- 进行差异和功能丰富分析以确定关键的调节途径和基因.
主要成果:
- 在较小的sFGR胎盘中减少了全球染色质可访问性和丰富的氧化应激/代谢途径.
- 鉴定出广泛的DNA低甲基化与缺氧和血管生成中的差异性基因表达,缺氧反应和氧化应激有关.
- 发现HK2是sFGR胎盘中的中央上调基因,强烈预测sFGR,并与缺氧诱导的代谢压力有关.
结论:
- 对I型sFGR胎盘的综合多组特征.
- 确定HK2是关键的代谢调节器,与缺氧,代谢压力和氧化损伤相关.
- 这些发现扩大了对sFGR分子机制的理解,并建议针对HK2.2的潜在治疗途径.
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