缺少CNTNAP2会导致,神经元迁移异常,以及与自闭症相关的核心缺陷
Olga Peñagarikano1, Brett S Abrahams, Edward I Herman
1Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
Cell
|October 4, 2011
概括
缺乏Cntnap2基因的小鼠表现出自闭症谱系障碍 (ASD) 核心行为,发作和异常的大脑发育. 里斯佩里治疗改善了这些Cntnap2(-/-) 小鼠的重复行为.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 发育生物学 发展生物学
背景情况:
- 自闭症谱系障碍 (ASD) 的遗传是复杂的,生物机制不明确.
- CNTNAP2基因突变与ASD和神经发育障碍密切相关.
- 鼠标模型对于理解基因功能和开发ASD治疗方法至关重要.
研究的目的:
- 描述Cntnap2淘汰赛小鼠模型对ASD的相关性.
- 调查Cntnap2缺乏的神经病理和生理后果.
- 在这个模型中评估与ASD相关的行为潜在的治疗干预措施.
主要方法:
- 生成的Cntnap2淘汰赛小鼠 (Cntnap2(-/-)).
- 评估了ASD核心领域的行为缺陷,多动性和发作.
- 对大脑发育和神经元活动进行了神经病理和生理分析.
- 用于评估其对重复性行为治疗效果的RISPERIDONE.
主要成果:
- Cntnap2(-/-) 鼠在自闭症核心行为,过度活跃和发作方面表现出缺陷.
- 神经病理学发现包括神经元异常迁移,神经元内部神经元减少,以及在发作之前改变的网络活动.
- 里斯佩里治疗显著改善了Cntnap2的目标重复行为.
结论:
- CNTNAP2在正常的大脑发育中起着至关重要的作用.
- Cntnap2淘汰赛小鼠是研究ASD机制的有价值模型.
- 该模型为新型ASD治疗方法的临床前测试提供了一个平台.
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