Andersen Rebecca E, Talukdar Maya, Sakamoto Tyler, Song Janet H T, Qian Xuyu, Lee Seungil, Delgado Ryan N, Zhao Sijing, Eichfeld Gwenyth, Harms Julia, Walsh Christopher A
Division of Genetics and Genomics and Manton Center for Orphan Diseases, Boston Children's Hospital, Boston, MA, USA.
Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
bioRxiv. 2025 Jan 22:2025.01.20.634000. doi: 10.1101/2025.01.20.634000.
The diversity of genes implicated in autism spectrum disorder (ASD) creates challenges for identifying core pathophysiological mechanisms. Aggregation of seven different classes of genetic variants implicated in ASD, in a database we call , reveals shared features across distinct types of ASD variants. Functional interrogation of 19 ASD genes and 9 neighboring long non-coding RNAs (lncRNAs) using CRISPR-Cas13 strikingly revealed differential gene expression profiles that were significantly enriched for other ASD genes. Furthermore, construction of a gene regulatory network (GRN) enabled the identification of central regulators that exhibit convergently altered activity upon ASD gene disruption. Thus, this study reveals how perturbing distinct ASD-associated genes can lead to shared, broad dysregulation of GRNs with critical relevance to ASD. This provides a crucial framework for understanding how diverse genes, including lncRNAs, can play convergent roles in key neurodevelopmental processes and ultimately contribute to ASD.
与自闭症谱系障碍(ASD)相关的基因多样性给识别核心病理生理机制带来了挑战。在一个我们称为 的数据库中,对与ASD相关的七种不同类型基因变异的汇总揭示了不同类型ASD变异之间的共同特征。使用CRISPR-Cas13对19个ASD基因和9个相邻的长链非编码RNA(lncRNA)进行功能研究,显著揭示了差异基因表达谱,这些表达谱在其他ASD基因中显著富集。此外,构建基因调控网络(GRN)能够识别在ASD基因破坏时表现出趋同改变活性的中央调节因子。因此,这项研究揭示了干扰不同的ASD相关基因如何导致与ASD密切相关的GRN出现共同的、广泛的失调。这为理解包括lncRNA在内的多种基因如何在关键神经发育过程中发挥趋同作用并最终导致ASD提供了一个关键框架。