De novo TANC2变种导致发育性和性脑病变和
Sheng Luo1, Wen-Jun Zhang1, Mi Jiang1
1Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
TANC2基因与和神经发育障碍 (NDD) 有关. 在TANC2的致病变体可以导致各种各样的条件,从严重的发育和性脑病变 (DEE) 到轻微的.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
背景情况:
- TANC2基因编码了一个突触支架蛋白质,对突触传输至关重要.
- 了解和神经发育障碍 (NDD) 的遗传基础对于诊断和治疗至关重要.
研究的目的:
- 调查TANC2基因变异与之间的关联.
- 阐明TANC2相关疾病的表型变异背后的机制.
- 探索TANC2在大脑发育中的作用.
主要方法:
- 在患者中基于trio的外体序列测序.
- 使用Drosophila模型进行验证.
- 单细胞RNA测序和时空表达分析在脑组织和有机体中.
主要成果:
- 在患者中发现了六种致病性/可能致病性 de novo TANC2 变体 (四种无效,两种错误).
- 零变异与严重的表型有关,包括,NDD和发育性和性脑病变 (DEE).
- 误解变体与或NDD有关,更具破坏性的误解变体与NDD相关.
结论:
- TANC2被认为是和DEE的致病基因.
- TANC2变种呈现出从早期致死性到轻度的表型谱,受变种严重程度的影响.
- TANC2在神经发育中起着至关重要的作用,特别是在胎儿早期.
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