Disruptive mutations in TANC2 define a neurodevelopmental syndrome associated with psychiatric disorders

University of Washington Center for Mendelian Genomics, Hui Guo, Elisa Bettella, Paul C. Marcogliese, Rongjuan Zhao, Jonathan C. Andrews, Tomasz J. Nowakowski, Madelyn A. Gillentine, Kendra Hoekzema, Tianyun Wang, Huidan Wu, Sharayu Jangam, Cenying Liu, Hailun Ni, Marjolein H. Willemsen, Bregje W. van Bon, Tuula Rinne, Servi J.C. Stevens, Tjitske Kleefstra, Han G. Brunner & 31 others Helger G. Yntema, Min Long, Wenjing Zhao, Zhengmao Hu, Cindy Colson, Nicolas Richard, Charles E. Schwartz, Corrado Romano, Lucia Castiglia, Maria Bottitta, Shweta U. Dhar, Deanna J. Erwin, Lisa Emrick, Boris Keren, Alexandra Afenjar, Baosheng Zhu, Bing Bai, Pawel Stankiewicz, Kristin Herman, Deborah A. Nickerson, Michael J. Bamshad, Saadet Mercimek-Andrews, Jane Juusola, Amy B. Wilfert, Rami Abou Jamra, Benjamin Büttner, Heather C. Mefford, Alison M. Muir, Ingrid E. Scheffer, Brigid M. Regan, Jozef Gecz

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Abstract

Postsynaptic density (PSD) proteins have been implicated in the pathophysiology of neurodevelopmental and psychiatric disorders. Here, we present detailed clinical and genetic data for 20 patients with likely gene-disrupting mutations in TANC2—whose protein product interacts with multiple PSD proteins. Pediatric patients with disruptive mutations present with autism, intellectual disability, and delayed language and motor development. In addition to a variable degree of epilepsy and facial dysmorphism, we observe a pattern of more complex psychiatric dysfunction or behavioral problems in adult probands or carrier parents. Although this observation requires replication to establish statistical significance, it also suggests that mutations in this gene are associated with a variety of neuropsychiatric disorders consistent with its postsynaptic function. We find that TANC2 is expressed broadly in the human developing brain, especially in excitatory neurons and glial cells, but shows a more restricted pattern in Drosophila glial cells where its disruption affects behavioral outcomes.

LanguageEnglish
Article number4679
JournalNature communications
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Dec 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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