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自闭症谱系障碍诱导的多能干细胞在神经分化过程中显示失调的信号

Abdullah J AlShawaf^1,2,3, Sarah A AlNassar³, Norah AlGhamdi⁴

¹Department of Physical Therapy, Mohammed Al-Mana College for Medical Sciences, Dammam 34222, Saudi Arabia.

|September 13, 2025

概括

在自闭症谱系障碍 (ASD) 中, (Ca2+) 信号失调. 这项研究发现,来自干细胞的ASD神经元具有改变的Ca2+动态,这表明在ASD神经发育中存在平衡问题.

科学领域:

神经科学是一个神经科学.
发展生物学发展生物学
遗传学遗传学是一个

背景情况:

自闭症谱系障碍 (ASD) 是一种影响沟通和行为的神经发育状况.
(Ca2+) 信号的失调与ASD病理生理学有关.
诱导多能干细胞 (iPSCs) 为研究ASD神经发育过程提供了一个模型.

研究的目的:

调查来自ASD的神经元中的转录和功能Ca2+动态,并控制iPSCs.
为了比较不同分化阶段的Ca2+信号传递:iPSC,神经诱导,神经圈和分化皮层神经元.
为了识别导致ASD的特定Ca2+信号改变.

主要方法:

使用异常性自闭症和控制iPSC线路.
采用双重SMAD抑制用于分化到皮层神经元.
在分化阶段 (iPSC,NI,NSP,Diff) 进行大量RNA测序.
在iPSC和分化神经元阶段进行了Ca2+成像研究.

主要成果:

转录组分析揭示了更多的Ca2+信号基因在ASD iPSCs和分化神经元中差异表达.
与对照组相比,ASD iPSCs 显示了较高的 Ca2+ 对 ATP 的反应.
在ASD分化的神经元中,对ATP的Ca2+反应减少,但对KCl和DHPG的反应增加.

结论:

异常的平衡是ASD神经元病理生理学的关键特征.
功能性Ca2+信号失调发生在异形ASD的神经发生过程中.
这些发现强调了信号在ASD神经发育轨迹中的作用.

关键词:

自闭症自闭症是什么和是最重要的.皮质上皮质的皮层.发展发展发展发展发展.不同化的差异化差异化.这就是 iPSC 的意义.神经元神经元是一个神经元.

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