Cited by 261Genomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental DisordersAutism Spectrum Disorder Research

Microdeletion 15q13.3: a locus with incomplete penetrance for autism, mental retardation, and psychiatric disorders

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Ben-Shachar, S, Lanpher, B, German, J R, Qasaymeh, M, Potocki, L, Nagamani, S C Sreenath, Franco, L M, Malphrus, A +16 more·2009·Journal of Medical Genetics

Abstract

Background: Microdeletions within chromosome 15q13.3 are associated both with a recently recognised syndrome of mental retardation, seizures, and dysmorphic features, and with schizophrenia. Methods and results: Based on routine diagnostic testing of ∼8200 samples using array comparative genomic hybridisation, we identified 20 individuals (14 children and six parents in 12 families) with microdeletions of 15q13.3. Phenotypes in the children included developmental delay, mental retardation, or borderline IQ in most and autistic spectrum disorder (6/14), speech delay, aggressiveness, attention deficit hyperactivity disorder, and other behavioural problems. Both parents were available in seven families, and the deletion was de novo in one, inherited from an apparently normal parent in four, and inherited from a parent with learning disability and bipolar disorder in two families. Of the 14 children, six in five families were adopted, and DNA was available for only one of these 10 biological parents; the deletion was very likely inherited for one of these families with two affected children. Among the unavailable parents, two mothers were described as having mental retardation, another mother as having “mental illness”, and one father as having schizophrenia. We hypothesise that some of the unavailable parents have the deletion. Conclusions: The occurrence of increased adoption, frequent autism, bipolar disorder, and lack of penetrance are noteworthy findings in individuals with deletion 15q13.3. A high rate of adoption may be related to the presence of the deletion in biological parents. Unconfirmed histories of antisocial behaviours in unavailable biological parents raise the concern that future research may show that deletion 15q13.3 is associated with such behaviours.

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Crossref · 10.1136/jmg.2008.064378

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  • Recurrent CNVs initially observed in ID or ASD are also found in adults with epilepsy, bipolar disorder, or schizophrenia, suggesting genetic overlap among these disorders.

    “many of these same recurrent CNVs observed initially in patients with ID [15] or ASD [16] have been identified in adults with epilepsy [17], bipolar disorder [18], or schizophrenia [19,20], suggesting overlap in the genetic etiology of these disorders.”

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Authors
Ben-Shachar, S., Lanpher, B., German, J. R., Qasaymeh, M., Potocki, L., Nagamani, S. C. S., Franco, L. M., Malphrus, A., Bottenfield, G. W., Spence, J. E., Amato, S., Rousseau, J. A., Moghaddam, B., Skinner, C., Skinner, S. A., Bernes, S., Armstrong, N., Shinawi, M., Stankiewicz, P., Patel, A., Cheung, S.-W., Lupski, J. R., Beaudet, A. L., & Sahoo, T.
Affiliations
  • Vanderbilt University (US)
  • University of Rochester Medicine (US)
  • Baylor College of Medicine (US)
  • Carolinas Medical Center (US)
  • Tufts University (US)
  • University of California, Davis (US)
  • Greenwood Genetic Center (US)
  • Phoenix Children's Hospital (US)
  • St. Louis Children's Hospital (US)
Corresponding author
Beaudet, A L
Venue
Journal of Medical Genetics
Publisher
BMJ
Published
2009-03-15
Volume
46
Issue
6
Pages
382-388
ISSN
  • 0022-2593 (ISSN-L)
  • 1468-6244
OpenAlex
W2098000677
Cited by
261
References
41
Citations by year
2026: 1 · 2025: 5 · 2024: 1 · 2023: 4 · 2022: 9 · 2021: 6 · 2020: 18 · 2019: 8 · 2018: 6 · 2017: 10 · 2016: 10 · 2015: 18 · 2014: 21 · 2013: 20 · 2012: 17
FWCI
24.04
Type
journal article
Language
en
Open access
Locations
  • Journal of Medical Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Center for Research Resources (U54RR019478, RR-019478, M01RR000188, M01 RR-00188)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 024064, HD-037283, R01HD037283, P30HD024064)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
autism spectrum disorder, intellectual disability, developmental delay, bipolar disorder, schizophrenia, mental illness, incomplete penetrance, de novo deletion, parental inheritance, adoption, antisocial behavior, attention deficit hyperactivity disorder, seizures
MeSH terms
Adult, Autistic Disorder, Mental Disorders, Child, Chromosome Deletion, Chromosomes, Human, Pair 15, Female, Humans, Male, Intellectual Disability, Pedigree, Seizures, Syndrome, Penetrance, Oligonucleotide Array Sequence Analysis, Comparative Genomic Hybridization

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