Autism-Associated Genes and Neighboring lncRNAs Converge on Key Gene Regulatory Networks
Autism-Associated Genes and Neighboring lncRNAs Converge on Key Gene Regulatory Networks
Andersen, R.; Talukdar, M.; Sakamoto, T.; Song, J. H.; Qian, X.; Lee, S.; Delgado, R. N.; Zhao, S.; Eichfeld, G.; Harms, J.; Walsh, C. A.
AbstractThe 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 Consensus-ASD, 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.