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在灵长类动物进化过程中ZNF675基因的出现 - - 通过改变HES1自我调节来影响人类神经发育

Gerrald A Lodewijk¹, Matthijs de Geus¹, Rita L F P Guimarães¹

¹Swammerdam Institute for Life Sciences, Evolutionary Neurogenomics, University of Amsterdam, Amsterdam, The Netherlands.

The Journal of comparative neurology

|July 3, 2024

概括

在ZNF675中经常出现的拷贝数变异与神经发育障碍有关. 这项研究表明,ZNF675的删除通过破坏HES1调节,导致大脑器官的缺陷,突出显示了它在人类大脑发育中的作用.

科学领域:

遗传学遗传学是一个
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:

在19p12位点的重复复制数变化 (CNVs) 与神经发育障碍有关.
位于这个位置的灵长类特定基因ZNF675和ZNF681与人类大脑发育有关.
克鲁佩尔相关盒子指 (KZNF) 蛋白质是参与表观遗传沉默的转录抑制剂,在基因调节中扮演着新兴的角色.

研究的目的:

研究ZNF675和ZNF681在神经发育中的作用.
确定ZNF675副本数变异对大脑发育的功能影响.
阐明ZNF675影响神经发育基因调节的分子机制.

主要方法:

在19p12位点对副本数变化 (CNVs) 的分析.
产生和分析带有ZNF675.5遗传缺失的皮质有机体.
研究ZNF675对神经发育基因 (包括HES1.1) 的调控作用.

主要成果:

ZNF675的遗传删除导致皮质器官的发育缺陷.
ZNF675调节了Hes家族BHLH转录因子1 (HES1) 的促进体,这是一个关键的神经发育基因.
ZNF675干扰HES1的自身抑制,影响神经前体的维持和改变HES1的自我调节.

结论:

ZNF675在人类大脑发育中起着至关重要的作用.
ZNF675副本数的变化可能导致神经发育障碍.
ZNF675的出现影响了HES1的自我调节,有助于人类大脑发育的进化.

关键词:

在KRAB的指基因中.脑部疾病脑部疾病基因组进化的基因组进化神经干细胞的神经干细胞神经发育的神经发育口信号传输系统

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