跨物种分析确定线粒体失调是精神分裂症相关的3q29删除的功能后果
Ryan H Purcell1,2, Esra Sefik3, Erica Werner2
1Laboratory of Translational Cell Biology, Emory University School of Medicine, Atlanta, GA, USA.
Science advances
|August 16, 2023
概括
染色体3q29 (3q29Del) 的1.6兆基删除是精神分裂症的主要危险因素. 这项研究表明,3q29Del在发育中的大脑中破坏了线粒体功能和能量代谢,影响了神经发育.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 3q29删除 (3q29Del) 是精神分裂症最重要的遗传风险因素.
- 3q29Del对神经发育的确切影响尚不清楚.
研究的目的:
- 为了研究3q29Del.的神经发育的影响.
- 在发育中的大脑中识别被3q29Del破坏的分子通路.
主要方法:
- 人类皮质器官和小鼠同皮质的单细胞RNA测序.
- 在细胞模型和小鼠大脑中分析线粒体功能和蛋白质表达.
主要成果:
- 转录组分析揭示了线粒体功能和能量代谢的失调.
- 观察到代谢不灵活性,在3q29Del模型中发现PAK2基因是贡献者.
- 这些代谢干扰在人类和小鼠模型中保持不变.
结论:
- 代谢功能障碍是3q29Del.的保留后果.
- 被破坏的线粒体能量代谢可能是3q29Del的神经发育影响的基础,有助于精神分裂症风险.
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