Cited by 798Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersGenomic variations and chromosomal abnormalities

Disruptive CHD8 Mutations Define a Subtype of Autism Early in Development

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Bernier, Raphael, Golzio, Christelle, Xiong, Bo, Stessman, Holly A., Coe, Bradley P., Penn, Osnat, Witherspoon, Kali, Gerdts, Jennifer +26 more·2014·Cell

Abstract

Autism spectrum disorder (ASD) is a heterogeneous disease in which efforts to define subtypes behaviorally have met with limited success. Hypothesizing that genetically based subtype identification may prove more productive, we resequenced the ASD-associated gene CHD8 in 3,730 children with developmental delay or ASD. We identified a total of 15 independent mutations; no truncating events were identified in 8,792 controls, including 2,289 unaffected siblings. In addition to a high likelihood of an ASD diagnosis among patients bearing CHD8 mutations, characteristics enriched in this group included macrocephaly, distinct faces, and gastrointestinal complaints. chd8 disruption in zebrafish recapitulates features of the human phenotype, including increased head size as a result of expansion of the forebrain/midbrain and impairment of gastrointestinal motility due to a reduction in postmitotic enteric neurons. Our findings indicate that CHD8 disruptions define a distinct ASD subtype and reveal unexpected comorbidities between brain development and enteric innervation.

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Crossref · 10.1016/j.cell.2014.06.017

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  • The finding of brain overgrowth in this sample of young children with 'idiopathic' ASD is consistent with an emerging literature demonstrating brain overgrowth in genetically-defined ASD subgroups (e.g., 16p11 deletions, CHD8).

    “The finding of brain overgrowth in this sample of young children with 'idiopathic' ASD is consistent with an emerging literature demonstrating brain overgrowth in genetically-defined ASD subgroups (e.g., 16p11 deletions 15 , CHD8 16 ).”
  • CHD8 is the gene most frequently affected by ASD-associated rare de novo variation.

    “chromodomain helicase DNA-binding protein 8 (CHD8)118, which is the gene most frequently affected by ASD-associated rare de novo variation72,119–121.”
  • Deep phenotyping of 15 patients with CHD8 mutations led to identification of a proposed ASD subtype.

    “Deep phenotyping of 15 patients with CHD8 mutations has led to the identification of a proposed ASD subtype (56)”
  • Studies on CHD8 and iPS-derived ASD neurons indicate the dysregulation of proliferation and macrocephaly in ASD could be linked to the disruption of these signaling pathways and shortened G1/S transition.

    “Studies on CHD8 and iPS-derived ASD neurons indicate the dysregulation of proliferation and macrocephaly in ASD could be linked to the disruption of these signaling pathways and shortened G1/S transition[54, 55, 57, 94, 183, 192, 193].”
  • Knock-down of the CHD8 ortholog results in macrocephaly in zebrafish and increased brain weight and volume in mice, phenotypes that reflect clinical observations in subjects with loss-of-function mutations in the gene.

    “Knock-down of the CHD8 ortholog results in macrocephaly in zebrafish [32, 343] and increased brain weight and volume [187, 287] in mice, phenotypes that reflect clinical observations in subjects with loss-of-function mutations in the gene [32].”

    From Autism spectrum disorder: neuropathology and animal models (2017) · cites this paper as [32]

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Authors
Bernier, R., Golzio, C., Xiong, B., Stessman, H. A., Coe, B. P., Penn, O., Witherspoon, K., Gerdts, J., Baker, C., Vulto-van Silfhout, A. T., Schuurs-Hoeijmakers, J. H., Fichera, M., Bosco, P., Buono, S., Alberti, A., Failla, P., Peeters, H., Steyaert, J., Vissers, L. E. L. M., Francescatto, L., Mefford, H. C., Rosenfeld, J. A., Bakken, T., O’Roak, B. J., Pawlus, M., Moon, R., Shendure, J., Amaral, D. G., Lein, E., Rankin, J., Romano, C., de Vries, B. B. A., Katsanis, N., & Eichler, E. E.
Affiliations
  • University of Washington (US)
  • Duke Medical Center (US)
  • Radboud University Medical Center (NL)
  • University of Catania (IT)
  • Oasi Maria SS (IT)
  • Universitair Ziekenhuis Leuven (BE)
  • Maastricht University Medical Centre (NL)
  • Allen Institute for Brain Science (US)
  • Oregon Health & Science University (US)
  • Howard Hughes Medical Institute (US)
  • University of California, Davis (US)
Corresponding author
Eichler, Evan E.
Venue
Cell
Publisher
Elsevier BV
Published
2014-07
Volume
158
Issue
2
Pages
263-276
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2128300020
Cited by
798
References
67
Citations by year
2026: 50 · 2025: 58 · 2024: 57 · 2023: 51 · 2022: 68 · 2021: 85 · 2020: 84 · 2019: 70 · 2018: 63 · 2017: 76 · 2016: 63 · 2015: 61 · 2014: 11
FWCI
39.22
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Lirias (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of Mental Health (P50MH094268, R01MH101221)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (U54HD083091)
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
CHD8, autism spectrum disorder, ASD subtypes, disruptive mutations, developmental delay, macrocephaly, gastrointestinal motility, enteric neurons, zebrafish model, brain development, genotype-phenotype correlation
MeSH terms
Adolescent, Amino Acid Sequence, Animals, Brain, Child, Child Development Disorders, Pervasive, Child, Preschool, DNA-Binding Proteins, Female, Humans, Macaca mulatta, Male, Molecular Sequence Data, Mutation, Transcription Factors, Zebrafish, Sequence Alignment, Zebrafish Proteins, Gastrointestinal Tract, Megalencephaly

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