在双相情感障碍中,神经应激抵抗能力受损和REST丧失
Katharina Meyer1, King-Hwa Ling1, Pei-Ling Yeo1
1Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Molecular psychiatry
|November 8, 2023
概括
这项研究引入了双相情感障碍 (BD) 的人类大脑器官模型,揭示了受损的细胞应激反应和与REST基因相关的神经发育变化. 这些发现表明了理解BD病变的新框架.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 双极性障碍 (BD) 的发病包括神经发育的变化和抗压能力受损.
- 在BD的基础监管机制在很大程度上仍未解决.
研究的目的:
- 开发和描述双相情感障碍 (BD) 的人类大脑器官模型.
- 使用该模型,研究BD病变的分子机制,特别是转录抑制剂REST的作用.
主要方法:
- 从BD患者中产生诱导多能干细胞 (iPSC) 衍生的脑器官.
- 转录组分析以确定基因表达模式.
- 核REST水平和DNA结合活性的评估.
- 在有机体培养中对氧气水平的实验操纵和处理.
- 从BD患者的前额叶皮层组织的分析.
主要成果:
- BD脑器官表现出神经发育的改变,神经活动的增加,以及显著的转录基因变化.
- 对于转录抑制剂REST的基因标,BD有机转录组被丰富,具有减少的核REST和结合.
- 降低氧气水平或治疗改善了BD有机体表型,并恢复了REST表达.
- 在BD患者的前额叶皮质中也观察到减少的核REST和放松的REST位基因.
结论:
- 细胞应激反应受损有助于改变神经发育和转录失调在BD.
- 转录抑制剂REST的下调是BD脑器官模型和患者组织中的一个关键特征.
- 这种大脑器官模型为研究双相情感障碍的分子基础提供了一个新的平台.
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