Cited by 197Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersGenomic variations and chromosomal abnormalities

Genotype to phenotype relationships in autism spectrum disorders

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Chang, Jonathan, Gilman, Sarah R, Chiang, Andrew H, Sanders, Stephan J, Vitkup, Dennis·2015·Nature Neuroscience

Abstract

Autism spectrum disorders (ASDs) are characterized by phenotypic and genetic heterogeneity. Our analysis of functional networks perturbed in ASD suggests that both truncating and nontruncating de novo mutations contribute to autism, with a bias against truncating mutations in early embryonic development. We find that functional mutations are preferentially observed in genes likely to be haploinsufficient. Multiple cell types and brain areas are affected, but the impact of ASD mutations appears to be strongest in cortical interneurons, pyramidal neurons and the medium spiny neurons of the striatum, implicating cortical and corticostriatal brain circuits. In females, truncating ASD mutations on average affect genes with 50–100% higher brain expression than in males. Our results also suggest that truncating de novo mutations play a smaller role in the etiology of high-functioning ASD cases. Overall, we find that stronger functional insults usually lead to more severe intellectual, social and behavioral ASD phenotypes.

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Authors
Chang, J., Gilman, S. R., Chiang, A. H., Sanders, S. J., & Vitkup, D.
Affiliations
  • Columbia University (US)
  • University of California, San Francisco (US)
Corresponding author
Vitkup, Dennis
Venue
Nature Neuroscience
Published
2014-12-22
Volume
18
Issue
2
Pages
191-198
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2034102853
Cited by
197
References
52
Citations by year
2026: 7 · 2025: 13 · 2024: 9 · 2023: 13 · 2022: 9 · 2021: 18 · 2020: 25 · 2019: 16 · 2018: 22 · 2017: 19 · 2016: 24 · 2015: 22
FWCI
11.99
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Cancer Institute (U54CA121852)
  • National Institute of General Medical Sciences (T32GM082797)
  • U.S. National Library of Medicine (T15LM007079)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
Keywords
autism spectrum disorder, genotype-phenotype correlation, de novo mutations, truncating mutations, haploinsufficiency, cortical interneurons, pyramidal neurons, medium spiny neurons, corticostriatal circuits, sex differences, brain gene expression, severity of intellectual disability, high-functioning autism
MeSH terms
Brain, Child Development Disorders, Pervasive, Female, Genotype, Humans, Male, Mutation, Phenotype, Genetic Association Studies

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