Cited by 180Epigenetics and DNA MethylationSchizophrenia research and treatmentGenetic Associations and Epidemiology

Association of DNA methylation differences with schizophrenia in an Epigenome-Wide association study

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Montano, Carolina, Taub, Margaret A., Jaffe, Andrew, Briem, Eirikur, Feinberg, Jason I., Trygvadottir, Rakel, Idrizi, Adrian, Runarsson, Arni +19 more·2016·JAMA Psychiatry

Abstract

IMPORTANCE: DNA methylation may play an important role in schizophrenia (SZ), either directly as a mechanism of pathogenesis or as a biomarker of risk. OBJECTIVE: To scan genome-wide DNA methylation data to identify differentially methylated CpGs between SZ cases and controls. DESIGN, SETTING, AND PARTICIPANTS: Epigenome-wide association study begun in 2008 using DNA methylation levels of 456 513 CpG loci measured on the Infinium HumanMethylation450 array (Illumina) in a consortium of case-control studies for initial discovery and in an independent replication set. Primary analyses used general linear regression, adjusting for age, sex, race/ethnicity, smoking, batch, and cell type heterogeneity. The discovery set contained 689 SZ cases and 645 controls (n = 1334), from 3 multisite consortia: the Consortium on the Genetics of Endophenotypes in Schizophrenia, the Project among African-Americans To Explore Risks for Schizophrenia, and the Multiplex Multigenerational Family Study of Schizophrenia. The replication set contained 247 SZ cases and 250 controls (n = 497) from the Genomic Psychiatry Cohort. MAIN OUTCOMES AND MEASURES: Identification of differentially methylated positions across the genome in SZ cases compared with controls. RESULTS: Of the 689 case participants in the discovery set, 477 (69%) were men and 258 (37%) were non-African American; of the 645 controls, 273 (42%) were men and 419 (65%) were non-African American. In our replication set, cases/controls were 76% male and 100% non-African American. We identified SZ-associated methylation differences at 923 CpGs in the discovery set (false discovery rate, <0.2). Of these, 625 showed changes in the same direction including 172 with P < .05 in the replication set. Some replicated differentially methylated positions are located in a top-ranked SZ region from genome-wide association study analyses. CONCLUSIONS AND RELEVANCE: This analysis identified 172 replicated new associations with SZ after careful correction for cell type heterogeneity and other potential confounders. The overlap with previous genome-wide association study data can provide potential insights into the functional relevance of genetic signals for SZ.

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Authors
Montano, C., Taub, M. A., Jaffe, A., Briem, E., Feinberg, J. I., Trygvadottir, R., Idrizi, A., Runarsson, A., Berndsen, B., Gur, R. C., Moore, T. M., Perry, R. T., Fugman, D., Sabunciyan, S., Yolken, R. H., Hyde, T. M., Kleinman, J. E., Sobell, J. L., Pato, C. N., Pato, M. T., Go, R. C., Nimgaonkar, V., Weinberger, D. R., Braff, D., Gur, R. E., Fallin, M. D., & Feinberg, A. P.
Affiliations
  • Medical Scientist Training Program and Predoctoral Training Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland2Center for Epigenetics, Johns Hopkins University School of Medicine, Baltimore, Maryland
  • Johns Hopkins University (US)
  • Center for Epigenetics, Johns Hopkins University School of Medicine, Baltimore, Maryland
  • University of Pennsylvania (US)
  • University of Alabama at Birmingham (US)
  • Rutgers University Cell and DNA Repository, Piscataway, New Jersey
  • Lieber Institute for Brain Development (US)
  • University of Southern California (US)
  • University of Pittsburgh (US)
  • University of California San Diego (US)
Corresponding author
Feinberg, Andrew P.
Venue
JAMA Psychiatry
Published
2016-05-01
Volume
73
Issue
5
Pages
506
ISSN
2168-622X (ISSN-L)
OpenAlex
W2338895517
Cited by
180
References
75
Citations by year
2026: 8 · 2025: 10 · 2024: 12 · 2023: 13 · 2022: 23 · 2021: 23 · 2020: 19 · 2019: 19 · 2018: 17 · 2017: 23 · 2016: 12
FWCI
12.30
Type
journal article
Language
en
Open access
Locations
  • JAMA Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (U01MH085265, U01MH085270, U01MH085281, U01MH085269, U24MH068457, R01MH085548, U01MH085264)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • 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, DNA methylation, differentially methylated CpGs, epigenome-wide association study
MeSH terms
Adult, Black or African American, Female, Genetic Markers, Humans, Male, Phenotype, Psychotic Disorders, Schizophrenia, Sex Factors, CpG Islands, DNA Methylation, Epigenesis, Genetic, Genome-Wide Association Study, Genetic Loci, Epigenomics

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