神经元粘附分子阿斯托拉克1基因ASTN1中的双基变异会导致各种神经发育障碍
Jesse M Levine1, Daniel G Calame1, Riccardo Sangermano2
1Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA; Texas Children's Hospital, Houston, TX, USA.
通过破坏神经元迁移,ASTN1中的突变会导致神经发育障碍 (NDD). 这项研究详细介绍了18例新病例,扩大了ASTN1相关NDD的已知的临床和脑形谱.
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:
- ASTN1是一个关键的神经细胞质连接体,指导神经元在发育的大脑结构中的迁移.
- ASTN1功能的缺陷与神经发育障碍 (NDD) 有关,并且在有迁移问题的小鼠模型中观察到.
- ASTN2也在神经元迁移中发挥作用,与NDDs相关的删除.
研究的目的:
- 描述18名患有NDD和双基ASTN1变异的个体的临床和神经放射学表型.
- 研究ASTN1和ASTN2在人类神经发育中的作用.
- 探索多部位致病变异 (MPV) 对NDD的影响.
主要方法:
- 来自12个ASTN1变异家族的18个个体的临床和遗传分析.
- 详细的表型,包括神经发育评估,神经成像和形学.
- 对遗传模型的分析,包括双基,异合体,三基和AOH变体.
主要成果:
- 在18名患有NDD的个体中确定了双基ASTN1变异,扩大了表型谱.
- 观察到一系列的NDD,包括智力障碍,自闭症,多动症,,低垂,性,性,性和异形特征.
- 记录了各种神经放射学发现,从正常到严重的发育不良,如多微症和脑症.
- 报告了三起涉及ASTN1的MPV病例,突出了复杂的遗传相互作用.
结论:
- 在人类中,ASTN1变异会导致一系列的NDD,影响神经元迁移.
- 这项研究扩大了对ASTN1相关神经发育表型和神经放射特征的理解.
- MPV有助于NDD的遗传基础,强调神经发育中的遗传变异的复杂性.
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