在胎盘中,依赖于血清素运输体的组织蛋白血清素化有助于神经发育转录基因组
Jennifer C Chan1, Natalia Alenina2,3, Ashley M Cunningham1
1Nash Family Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
bioRxiv : the preprint server for biology
|November 28, 2023
概括
胎盘中的血清素 (5-HT) 影响胎儿的大脑发育. 新的研究表明,胎盘中的H3血清化依赖于血清转运体 (SERT),影响神经发育至关重要的基因网络.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 血清素 (5-HT) 信号传递对大脑发育至关重要.
- 胎盘是胎儿5-HT的潜在来源,但其作用和机制尚不清楚.
- 基因组H3血清化 (H3S) 是一种新发现的调节转录的表观遗传机制.
研究的目的:
- 为了研究H3氨酸在胎盘发育中的作用.
- 确定胎盘5-HT获取的机制及其对胎盘功能的影响.
- 探索胎盘H3S与后代神经发育之间的联系.
主要方法:
- 在转基因小鼠的胎盘发育期间分析H3血清化动态.
- 研究血清素载体 (SERT/SLC6A4) 在胎盘H3S中的作用.
- 评估胎盘和胚胎大脑组织中的基因表达变化.
主要成果:
- 在胎盘发育过程中,H3血清化水平在动态上发生变化,与基因表达相关.
- 胎盘H3S在很大程度上依赖于通过SERT吸收血清素.
- 删除SERT显著减少胎盘H3S,并破坏胎儿大脑中的神经发育基因网络.
结论:
- 血清化H3是胎盘中一个关键的表观遗传调节剂.
- 胎盘SERT介导的5-HT吸收对H3S和适当的胎盘功能至关重要.
- 这些发现突出了一个新的途径,将胎盘表观遗传与后代大脑发育联系起来.
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