Cited by 138Genomic variations and chromosomal abnormalitiesGenetics and Neurodevelopmental DisordersGenome Rearrangement Algorithms

22q13.3 deletion syndrome: clinical and molecular analysis using array CGH

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Dhar, S.U., del Gaudio, D., German, J.R., Peters, S.U., Ou, Z., Bader, P.I., Berg, J.S., Blazo, M. +13 more·2010·American Journal of Medical Genetics Part A

Abstract

The 22q13.3 deletion syndrome results from loss of terminal segments of varying sizes at 22qter. Few genotype-phenotype correlations have been found but all patients have mental retardation and severe delay, or absence of, expressive speech. We carried out clinical and molecular characterization of 13 patients. Developmental delay and speech abnormalities were common to all and comparable in frequency and severity to previously reported cases. Array-based comparative genomic hybridization showed the deletions to vary from 95 kb to 8.5 Mb. We also carried out high-resolution 244K array comparative genomic hybridization in 10 of 13 patients, that defined the proximal and distal breakpoints of each deletion and helped determine the size, extent, and gene content within the deletion. Two patients had a smaller 95 kb terminal deletion with breakpoints within the SHANK3 gene while three other patients had a similar 5.5 Mb deletion implying the recurrent nature of these deletions. The two largest deletions were found in patients with ring chromosome 22. No correlation could be made with deletion size and phenotype although complete/partial SHANK3 was deleted in all patients. There are very few reports on array comparative genomic hybridization analysis on patients with the 22q13.3 deletion syndrome, and we aim to accurately characterize these patients both clinically and at the molecular level, to pave the way for further genotype-phenotype correlations. (c) 2010 Wiley-Liss, Inc.

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  • Point mutations and microdeletions of SHANK3 have been identified in idiopathic ASD cases.

    “Subsequently, point mutations and microdeletions of SHANK3 have been identified in idiopathic ASD cases (Boccuto et al., 2012; Dhar et al., 2010; Durand et al., 2007; Gauthier et al., 2010; Gong et al., 2012; Marshall et al., 2008; Moessner et al., 2007; Waga et al., 2011).”

    From Modeling Autism by SHANK Gene Mutations in Mice (2013) · cites this paper as Dhar et al., 2010

  • In other cases with almost identical small microdeletions including SHANK3, neurobehavioral phenotypes were quite variable.

    “Similarly, in other cases with almost identical small microdeletions (<100 kb) including SHANK3, neurobehavioral phenotypes were quite variable (Boccuto et al., 2013; Bonaglia et al., 2011; Dhar et al., 2010).”

    From Modeling Autism by SHANK Gene Mutations in Mice (2013) · cites this paper as Dhar et al., 2010

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Authors
Dhar, S. U., del Gaudio, D., German, J. R., Peters, S. U., Ou, Z., Bader, P. I., Berg, J. S., Blazo, M., Brown, C. W., Graham, B. H., Grebe, T. A., Lalani, S., Irons, M., Sparagana, S., Williams, M., Phillips, J. A., Beaudet, A. L., Stankiewicz, P., Patel, A., Cheung, S. W., & Sahoo, T.
Affiliations
  • Baylor College of Medicine (US)
  • Vanderbilt University (US)
  • University of North Carolina at Chapel Hill (US)
  • Baylor Scott & White Medical Center - Temple (US)
  • St. Joseph's Hospital and Medical Center (US)
  • Boston Children's Hospital (US)
  • Texas Scottish Rite Hospital for Children (US)
Corresponding author
Cheung, S.W.
Venue
American Journal of Medical Genetics Part A
Publisher
Wiley
Published
2010-02-22
Volume
152A
Issue
3
Pages
573-581
ISSN
  • 1552-4825 (ISSN-L)
  • 1552-4833
OpenAlex
W2123251139
Cited by
138
References
28
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 4 · 2021: 8 · 2020: 9 · 2019: 8 · 2018: 8 · 2017: 7 · 2016: 12 · 2015: 6 · 2014: 13 · 2013: 16 · 2012: 19
FWCI
8.82
Type
journal article
Language
en
Open access
Locations
  • American Journal of Medical Genetics Part A (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD037283)
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 › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
Keywords
Phelan-McDermid syndrome, SHANK3, ring chromosome 22, developmental delay, intellectual disability, speech abnormalities, genotype-phenotype correlation, breakpoint mapping, recurrent deletions
MeSH terms
Abnormalities, Multiple, Adolescent, Autistic Disorder, Carrier Proteins, Child, Developmental Disabilities, Child, Preschool, Chromosome Deletion, Chromosomes, Human, Pair 22, Female, Humans, Language Development Disorders, Male, Nerve Tissue Proteins, Phenotype, Syndrome, Comparative Genomic Hybridization, Young Adult, Genetic Association Studies

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