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性二态DNA甲基化和基因表达模式在人类第一季度胎盘胎盘
Tania L Gonzalez1, Bryn E Willson1, Erica T Wang1,2
1Department of Obstetrics and Gynecology, Cedars-Sinai Medical Center, 8635 West 3rd Street, Suite 160, Los Angeles, CA, 90048, USA.
Biology of sex differences
|August 16, 2024
概括
胎儿的性别影响着胎盘的早期发育,在第一季度,在男性胎盘和女性胎盘之间观察到不同的DNA甲基化模式. 这些表观遗传差异与基因表达相关,可能会影响怀孕健康.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 基因组学就是基因组学.
背景情况:
- 胎儿的性别和胎盘发育对于怀孕的结果至关重要.
- 第一个三个月的早期胎盘发育还没有得到充分的研究.
- 了解基于性别的胎盘差异可以为母胎健康策略提供信息.
研究的目的:
- 为了研究DNA甲基化和基因表达在第一季度人类胎盘的基于性别的差异.
- 识别与胎儿性别相关的特定基因和表观遗传标记.
- 探索早期胎盘发育中的DNA甲基化和基因表达之间的相关性.
主要方法:
- 在第一季度末期 (第10-14周) 招募孕妇进行胆毛样本采集.
- 从单独怀孕的胎盘组织中分离DNA和RNA,具有正常型.
- 使用Illumina MethylationEPIC BeadChip进行DNA甲基化和通过RNA测序进行基因表达的分析.
主要成果:
- 确定了151个差异甲基化探针 (DMP) 和152个性二态基因.
- 在ZNF300和CSMD1.1等基因的DNA甲基化和性二态基因表达之间发现了显著的相关性.
- 特定的CpG位点和差异甲基化区域显示出性别特定的甲基化模式.
结论:
- 第一个三个月的胎盘中的性别二态差异甲基化和基因表达是微妙但显著的.
- 通过DNA甲基化的表观遗传调节可能会导致胎盘早期发育的基于性别的差异.
- 这些发现突出了从头三个月开始影响胎儿和母亲健康的潜在分子机制.
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