Rare structural variants disrupt multiple genes in neurodevelopmental pathways in schizophrenia

Autor: Abhishek Bhandari, Ming K. Lee, Robert Long, Dheeraj Malhotra, Shane McCarthy, Andrew B. Singleton, Patricia Roccanova, Alexander Nord, Laila Noory, Jonathan Sebat, Zugen Chen, Sarah B. Pierce, Stanley F. Nelson, Mary Kusenda, Sunday M. Stray, Peter Gochman, Vlad Makarov, Tom Walsh, Caitlin Rippey, Evan E. Eichler, Judith L. Rapoport, Robert L. Findling, Linmarie Sikich, Anjené M. Addington, Barry Merriman, Thomas Stromberg, B. Lakshmi, Sean Davis, Carl Baker, Paul S. Meltzer, Greg M. Cooper, Jon McClellan, Mary Claire King, Philip Butler, Kristen L. Eckstrand, Nitin Gogtay
Rok vydání: 2008
Předmět:
Zdroj: Science (New York, N.Y.). 320(5875)
ISSN: 1095-9203
Popis: Schizophrenia is a devastating neurodevelopmental disorder whose genetic influences remain elusive. We hypothesize that individually rare structural variants contribute to the illness. Microdeletions and microduplications >100 kilobases were identified by microarray comparative genomic hybridization of genomic DNA from 150 individuals with schizophrenia and 268 ancestry-matched controls. All variants were validated by high-resolution platforms. Novel deletions and duplications of genes were present in 5% of controls versus 15% of cases and 20% of young-onset cases, both highly significant differences. The association was independently replicated in patients with childhood-onset schizophrenia as compared with their parents. Mutations in cases disrupted genes disproportionately from signaling networks controlling neurodevelopment, including neuregulin and glutamate pathways. These results suggest that multiple, individually rare mutations altering genes in neurodevelopmental pathways contribute to schizophrenia.
Databáze: OpenAIRE