Cited by 1,745Genomic variations and chromosomal abnormalitiesSchizophrenia research and treatmentGenetic Associations and Epidemiology

Large recurrent microdeletions associated with schizophrenia.

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GROUP, Stefansson, Hreinn, Rujescu, Dan, Cichon, Sven, Pietiläinen, Olli P. H., Ingason, Andres, Steinberg, Stacy, Fossdal, Ragnheidur +68 more·2008·Nature

Abstract

Reduced fecundity, associated with severe mental disorders, places negative selection pressure on risk alleles and may explain, in part, why common variants have not been found that confer risk of disorders such as autism, schizophrenia and mental retardation. Thus, rare variants may account for a larger fraction of the overall genetic risk than previously assumed. In contrast to rare single nucleotide mutations, rare copy number variations (CNVs) can be detected using genome-wide single nucleotide polymorphism arrays. This has led to the identification of CNVs associated with mental retardation and autism. In a genome-wide search for CNVs associating with schizophrenia, we used a population-based sample to identify de novo CNVs by analysing 9,878 transmissions from parents to offspring. The 66 de novo CNVs identified were tested for association in a sample of 1,433 schizophrenia cases and 33,250 controls. Three deletions at 1q21.1, 15q11.2 and 15q13.3 showing nominal association with schizophrenia in the first sample (phase I) were followed up in a second sample of 3,285 cases and 7,951 controls (phase II). All three deletions significantly associate with schizophrenia and related psychoses in the combined sample. The identification of these rare, recurrent risk variants, having occurred independently in multiple founders and being subject to negative selection, is important in itself. CNV analysis may also point the way to the identification of additional and more prevalent risk variants in genes and pathways involved in schizophrenia.

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Crossref · 10.1038/nature07229

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  • Deletion of 15q11.2(BP1-BP2) leads to a two- to fourfold increase in the risk for schizophrenia, autism and intellectual disability.

    “Deletion of 15q11.2(BP1–BP2) leads to a two to fourfold increase in the risk for schizophrenia, autism and intellectual disability [1–5].”

    From Linking haploinsufficiency of the autism- and schizophrenia-associated gene Cyfip1 with striatal-limbic-cortical network dysfunction and cognitive inflexibility (2024) · cites this paper as [1]

    The paper’s 15q11.2 passage (section labeled Abstract; page unavailable) reports the deletion in 0.55% of schizophrenia and related-psychosis cases versus 0.19% of controls, consistent with an approximately threefold association. It discusses autism and intellectual impairment in particular syndromes or a previously reported case, but does not establish a two- to fourfold risk increase for autism or intellectual disability from this deletion. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • About 0.25% of controls (n=66,462) are found with the 15q11.2 BP1-BP2 microdeletion.

    “a review of reported data from control cohorts (n = 66,462 subjects) summarized to date show that about 0.25% of controls are found with the 15q11.2 BP1–BP2 microdeletion [18,27,28,29,30,31].”

    From The 15q11.2 BP1–BP2 Microdeletion Syndrome: A Review (2015) · cites this paper as [31]

    The paper’s 15q11.2 results (section labeled Abstract; page unavailable) report the deletion in controls, supporting its inclusion among the cited control-cohort data. But this paper reports 79 of 41,194 controls (0.19%), not the citing sentence’s pooled 66,462 controls (about 0.25%). (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Copy number variation at the 15q11.2 region is a significant risk locus for neurological and neuropsychiatric conditions such as schizophrenia and autism spectrum disorder.

    “Copy number variation (CNV) at the 15q11.2 region has been identified as a significant risk locus for neurological and neuropsychiatric conditions such as schizophrenia (SCZ) and autism spectrum disorder (ASD).”

    From The autism and schizophrenia associated gene CYFIP1 is critical for the maintenance of dendritic complexity and the stabilization of mature spines (2014) · cites this paper as [5]

    The paper reports a significant association between the 15q11.2 deletion and schizophrenia or related psychoses (Abstract; page unavailable). It also discusses autistic features in Angelman syndrome cases with larger deletions that include 15q11.2, but does not establish the 15q11.2 CNV itself as a significant risk locus for autism spectrum disorder. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Copy number variation of CYFIP1 within 15q11.2 is linked to both autism spectrum disorder and schizophrenia.

    “Copy number variation of one gene within 15q11.2, coding for the cytoplasmic FMRP-interacting protein 1 (CYFIP1), has been linked to both ASD and SCZ.5,8,9”

    From The autism and schizophrenia associated gene CYFIP1 is critical for the maintenance of dendritic complexity and the stabilization of mature spines (2014) · cites this paper as [5]

    The paper reports an association between a 15q11.2 deletion and schizophrenia, and identifies CYFIP1 as the gene most likely to contribute to both that phenotype and autistic features in Angelman syndrome (passages [8] and [1], section labelled Abstract; no page supplied). But the deletion spans several genes, and the autism evidence concerns features in Angelman syndrome rather than a demonstrated association between CYFIP1-specific copy-number variation and ASD. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Altered levels of CYFIP1 are associated with several neurological disorders including SCZ and ASD.

    “Altered levels of CYFIP1 are associated with several neurological disorders including SCZ and ASD.4,5,10”

    From The autism and schizophrenia associated gene CYFIP1 is critical for the maintenance of dendritic complexity and the stabilization of mature spines (2014) · cites this paper as [5]

    The paper reports an association between a 15q11.2 deletion containing CYFIP1 and schizophrenia, and proposes CYFIP1 as the gene most likely to explain autistic features associated with related deletions (Abstract; page unavailable). It also notes reduced CYFIP1 expression in fragile X syndrome. It does not establish that altered CYFIP1 levels themselves are associated with both schizophrenia and ASD. (LLM, conf=0.84)

    Experimental — accuracy not yet measured

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Authors
GROUP, Stefansson, H., Rujescu, D., Cichon, S., Pietiläinen, O. P. H., Ingason, A., Steinberg, S., Fossdal, R., Sigurdsson, E., Sigmundsson, T., Buizer-Voskamp, J. E., Hansen, T., Jakobsen, K. D., Muglia, P., Francks, C., Matthews, P. M., Gylfason, A., Halldorsson, B. V., Gudbjartsson, D., Thorgeirsson, T. E., Sigurdsson, A., Jonasdottir, A., Jonasdottir, A., Bjornsson, A., Mattiasdottir, S., Blondal, T., Haraldsson, M., Magnusdottir, B. B., Giegling, I., Möller, H.-J., Hartmann, A., Shianna, K. V., Ge, D., Need, A. C., Crombie, C., Fraser, G., Walker, N., Lonnqvist, J., Suvisaari, J., Tuulio-Henriksson, A., Paunio, T., Toulopoulou, T., Bramon, E., Di Forti, M., Murray, R., Ruggeri, M., Vassos, E., Tosato, S., Walshe, M., Li, T., Vasilescu, C., Mühleisen, T. W., Wang, A. G., Ullum, H., Djurovic, S., Melle, I., Olesen, J., Kiemeney, L. A., Franke, B., Sabatti, C., Freimer, N. B., Gulcher, J. R., Thorsteinsdottir, U., Kong, A., Andreassen, O. A., Ophoff, R. A., Georgi, A., Rietschel, M., Werge, T., Petursson, H., Goldstein, D. B., Nöthen, M. M., Peltonen, L., Collier, D. A., St Clair, D., & Stefansson, K.
Affiliations
  • deCODE Genetics (Iceland) (IS)
  • University of Bonn (DE)
  • University Medical Center Utrecht (NL)
  • University of Copenhagen (DK)
  • GlaxoSmithKline (Italy) (IT)
  • GlaxoSmithKline (United Kingdom) (GB)
  • National University Hospital of Iceland (IS)
  • Ludwig-Maximilians-Universität München (DE)
  • Duke University (US)
  • University of Aberdeen (GB)
  • King's College London (GB)
  • University of Verona (IT)
  • Amager Hospital (DK)
  • University of Oslo (NO)
  • Glostrup Hospital (DK)
  • Radboud University Medical Center (NL)
  • University of California, Los Angeles (US)
  • Heidelberg University (DE)
  • Sankt Hans Hospital (DK)
  • Broad Institute (US)
Venue
Nature
Published
2008-09
Volume
455
Issue
7210
Pages
232-236
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1997031801
Cited by
1,745
References
32
Citations by year
2026: 11 · 2025: 21 · 2024: 28 · 2023: 32 · 2022: 34 · 2021: 51 · 2020: 41 · 2019: 62 · 2018: 61 · 2017: 62 · 2016: 80 · 2015: 118 · 2014: 115 · 2013: 159 · 2012: 173
FWCI
130.32
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Lirias (submittedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Hirsla (Landspítali University Hospital) (submittedVersion)
Funders
  • Wellcome Trust (089061)
  • National Institute for Health and Care Research (PDA/02/06/016)
  • Bundesministerium für Bildung und Forschung
  • Alfried Krupp von Bohlen und Halbach-Stiftung
  • National Institute of Mental Health (R01MH071425, R01MH078075, R01MH71425-01A1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
schizophrenia, copy number variation, de novo copy number variants, 1q21.1, 15q11.2, 15q13.3, chromosome 1, chromosome 15, rare variants, negative selection, fecundity, psychosis, genetic association, founder effect
MeSH terms
China, Chromosomes, Human, Pair 1, Chromosomes, Human, Pair 15, Europe, Genotype, Humans, Models, Genetic, Psychotic Disorders, Schizophrenia, Genome, Human, Sequence Deletion, Gene Dosage, Loss of Heterozygosity, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide

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