Cited by 128Genetics and Neurodevelopmental DisordersGenomic variations and chromosomal abnormalitiesNeurogenesis and neuroplasticity mechanisms

Haploinsufficiency of MeCP2-interacting transcriptional co-repressor SIN3A causes mild intellectual disability by affecting the development of cortical integrity

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Witteveen, Josefine S, Willemsen, Marjolein H, Dombroski, Thaís C D, van Bakel, Nick H M, Nillesen, Willy M, van Hulten, Josephus A, Jansen, Eric J R, Verkaik, Dave +21 more·2016·Nature Genetics

Abstract

Numerous genes are associated with neurodevelopmental disorders such as intellectual disability and autism spectrum disorder (ASD), but their dysfunction is often poorly characterized. Here we identified dominant mutations in the gene encoding the transcriptional repressor and MeCP2 interactor switch-insensitive 3 family member A (SIN3A; chromosome 15q24.2) in individuals who, in addition to mild intellectual disability and ASD, share striking features, including facial dysmorphisms, microcephaly and short stature. This phenotype is highly related to that of individuals with atypical 15q24 microdeletions, linking SIN3A to this microdeletion syndrome. Brain magnetic resonance imaging showed subtle abnormalities, including corpus callosum hypoplasia and ventriculomegaly. Intriguingly, in vivo functional knockdown of Sin3a led to reduced cortical neurogenesis, altered neuronal identity and aberrant corticocortical projections in the developing mouse brain. Together, our data establish that haploinsufficiency of SIN3A is associated with mild syndromic intellectual disability and that SIN3A can be considered to be a key transcriptional regulator of cortical brain development.

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Crossref · 10.1038/ng.3619

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  • For some of these monogenic syndromes it has recently been shown that deficits in the structural development of the PFC underlie these problems.

    “For some of these syndromes it has recently been shown that deficits in the structural development of the PFC underlie these problems [281–287].”

    From Development of prefrontal cortex (2022) · cites this paper as [281]

    The Abstract (page not provided) links SIN3A haploinsufficiency to mild syndromic intellectual disability and reports altered cortical development in mice. The Figure 1 caption (page not provided) describes seemingly underdeveloped frontal lobes in one person, but cautions that the MRI quality was suboptimal. These findings do not establish that structural deficits specifically in the PFC underlie the syndrome’s problems. (LLM, conf=0.84)

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Authors
Witteveen, J. S., Willemsen, M. H., Dombroski, T. C. D., van Bakel, N. H. M., Nillesen, W. M., van Hulten, J. A., Jansen, E. J. R., Verkaik, D., Veenstra-Knol, H. E., van Ravenswaaij-Arts, C. M. A., Wassink-Ruiter, J. S. K., Vincent, M., David, A., Le Caignec, C., Schieving, J., Gilissen, C., Foulds, N., Rump, P., Strom, T., Cremer, K., Zink, A. M., Engels, H., de Munnik, S. A., Visser, J. E., Brunner, H. G., Martens, G. J. M., Pfundt, R., Kleefstra, T., & Kolk, S. M.
Affiliations
  • Radboud University Nijmegen (NL)
  • Centre Hospitalier Universitaire de Nantes (FR)
  • Radboud University Medical Center (NL)
  • National Health Service (GB)
  • University Medical Center Groningen (NL)
  • Helmholtz Munich (DE)
  • University of Bonn (DE)
Corresponding author
  • Kleefstra, Tjitske
  • Kolk, Sharon M
Venue
Nature Genetics
Published
2016-07-11
Volume
48
Issue
8
Pages
877-887
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2471236541
Cited by
128
References
85
Citations by year
2026: 4 · 2025: 9 · 2024: 13 · 2023: 13 · 2022: 10 · 2021: 6 · 2020: 14 · 2019: 12 · 2018: 41 · 2017: 5 · 2016: 1
FWCI
15.86
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (submittedVersion)
  • Site cant be reached (submittedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, other-oa)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion, other-oa)
Funders
  • Wellcome Trust
  • ZonMw (907-00-365)
  • Radboud Universiteit
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Radboud Universitair Medisch Centrum
  • Medical Research Council
  • Ciência sem Fronteiras
Topics
  • 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
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
SIN3A, haploinsufficiency, intellectual disability, MeCP2, corepressors, cortical development, cortical neurogenesis, neuronal identity, corticocortical connections, autism spectrum disorder, corpus callosum hypoplasia, ventriculomegaly, neurodevelopmental disorders, mouse brain development
MeSH terms
Abnormalities, Multiple, Adolescent, Adult, Animals, Cerebral Cortex, Child, Child, Preschool, Chromosome Deletion, Female, Humans, Male, Intellectual Disability, Middle Aged, Mutation, Phenotype, Repressor Proteins, Syndrome, Mice, Methyl-CpG-Binding Protein 2, Neurogenesis, Young Adult, Sin3 Histone Deacetylase and Corepressor Complex, Haploinsufficiency, Agenesis of Corpus Callosum

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