Drosophila functional screening of de novo variants in autism uncovers damaging variants and facilitates discovery of rare neurodevelopmental diseases

Paul C. Marcogliese, Samantha L. Deal, Jonathan Andrews, J. Michael Harnish, V. Hemanjani Bhavana, Hillary K. Graves, Sharayu Jangam, Xi Luo, Ning Liu, Danqing Bei, Yu Hsin Chao, Brooke Hull, Pei Tseng Lee, Hongling Pan, Pradnya Bhadane, Mei Chu Huang, Colleen M. Longley, Hsiao Tuan Chao, Hyung lok Chung, Nele A. HaeltermanOguz Kanca, Sathiya N. Manivannan, Linda Z. Rossetti, Ryan J. German, Amanda Gerard, Eva Maria Christina Schwaibold, Sarah Fehr, Renzo Guerrini, Annalisa Vetro, Eleina England, Chaya N. Murali, Tahsin Stefan Barakat, Marieke F. van Dooren, Martina Wilke, Marjon van Slegtenhorst, Gaetan Lesca, Isabelle Sabatier, Nicolas Chatron, Catherine A. Brownstein, Jill A. Madden, Pankaj B. Agrawal, Boris Keren, Thomas Courtin, Laurence Perrin, Melanie Brugger, Timo Roser, Steffen Leiz, Frederic Tran Mau-Them, Julian Delanne, Elena Sukarova-Angelovska

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5 Citations (Scopus)

Abstract

Individuals with autism spectrum disorder (ASD) exhibit an increased burden of de novo mutations (DNMs) in a broadening range of genes. While these studies have implicated hundreds of genes in ASD pathogenesis, which DNMs cause functional consequences in vivo remains unclear. We functionally test the effects of ASD missense DNMs using Drosophila through “humanization” rescue and overexpression-based strategies. We examine 79 ASD variants in 74 genes identified in the Simons Simplex Collection and find 38% of them to cause functional alterations. Moreover, we identify GLRA2 as the cause of a spectrum of neurodevelopmental phenotypes beyond ASD in 13 previously undiagnosed subjects. Functional characterization of variants in ASD candidate genes points to conserved neurobiological mechanisms and facilitates gene discovery for rare neurodevelopmental diseases.

Original languageEnglish
Article number110517
JournalCell Reports
Volume38
Issue number11
DOIs
Publication statusPublished - 15 Mar 2022

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