在小鼠中,NSD2的功能丧失突变与异常的胎盘伴随着胎儿生长迟缓有关
Eriko Ohnishi1, Shiori Kinoshita1, Kazuhiko Nakabayashi1
1Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan.
PloS one
|July 21, 2025
概括
这项研究揭示了核受体结合SET域含有2 (NSD2) 酶对于小鼠的正常胎盘发育至关重要. 失去NSD2功能会导致胎盘膨胀和胎儿生长缺陷.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 发展生物学 发展生物学
- 遗传学 是一个遗传学.
背景情况:
- 具有核受体结合SET域2 (NSD2) 的核受体催化基因组H3 lysine 36二甲基化 (H3K36me2),与基因转录相关.
- NSD2对于哺乳动物发育至关重要,但其在胎盘中的作用尚未被探索.
研究的目的:
- 为了研究NSD2在小鼠胎位过程中的功能.
- 描述NSD2功能丧失突变对胎盘发育和胎儿结果的影响.
主要方法:
- 利用基因组编辑创建Nsd2-突变小鼠线.
- 进行了突变和野生类型 littermates 的胎盘的形态和比较分析.
- 观察到的胎儿发育和生存率.
主要成果:
- Nsd2突变胎盘显著扩大,形态发生变化,包括更厚的胎儿层和扩大的结区.
- 突变的胎盘在迷宫中表现出扩张的母体血液鼻.
- 胎盘异常与胎儿生长迟缓,,以及一些后代的先天性心血管异常相关.
结论:
- NSD2在调节小鼠胎盘发育和形态学方面发挥着至关重要的作用.
- 干扰NSD2功能导致胎盘异常和相关的胎儿生长缺陷,影响新生儿生存.
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