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PTEN控制了初级神经元中自闭症谱系障碍相关的转录的替代拼接

Sebastian Rademacher¹, Marco Preußner², Marie C Rehm¹

¹Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Molecular Biology and Biochemistry, Berlin 10117, Germany.

Brain : a journal of neurology

|September 26, 2024

概括

自闭症谱系障碍 (ASD) 中的酸酶和张素同类素 (PTEN) 缺乏会破坏基因拼接,影响其他ASD易感基因. 这表明PTEN-ASD是多因素的,涉及改变的拼接机制.

科学领域:

神经科学是一个神经科学.
遗传学遗传学是一个
分子生物学分子生物学

背景情况:

酸酶和张素同类物 (PTEN) 是PI3K/AKT/mTOR通路的关键调节者.
在有宏头症的自闭症谱系障碍 (ASD) 病例中,10-20%发现PTEN突变.
在PI3K/mTOR路径独立的情况下,PTEN会影响基因转录和剪接.

研究的目的:

研究PTEN在神经元中mRNA前拼接中的作用.
确定PTEN-ASD中改变拼接的基础分子机制.
为了比较小鼠和人类PTEN缺陷神经元模型中的拼接缺陷.

主要方法:

进行RNA测序 (RNA-Seq) 在缺乏Pten的初级皮质小鼠神经元上.
进行了改变转录拼接的分析.
数据与来自PTEN缺乏的人类神经元干细胞的已发表数据进行了比较.

主要成果:

全球转录错误拼接被观察到以一种发展规范的方式.
拼接缺陷在突触和基因表达调节过程中得到了丰富.
许多其他已知的ASD敏感性基因在Pten缺陷神经元中表现出拼接缺陷.
具有强大的3'拼接位的前子更频繁地被错误拼接.

结论:

PTEN 缺乏导致广泛的,发育调节的拼接变化.
在PTEN-ASD中改变的拼接会影响许多ASD易感基因.
PTEN-ASD是一种多因素状况,涉及通过异常拼接对其他ASD相关基因的失调.

关键词:

在这里,我们可以使用PTEN.在U2AF6565中使用.替代性拼接是一种替代性的拼接.自闭症谱系障碍自闭症谱系障碍

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