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Genome-wide DNA methylation levels and altered cortisol stress reactivity following childhood trauma in humans

  • Lotte C Houtepen
  • , Christiaan H Vinkers
  • , Tania Carrillo-Roa
  • , Marieke Hiemstra
  • , Pol A van Lier
  • , Wim Meeus
  • , Susan Branje
  • , Christine M Heim
  • , Charles B Nemeroff
  • , Jonathan Mill
  • , Leonard C Schalkwyk
  • , Menno P Creyghton
  • , René S Kahn
  • , Marian Joëls
  • , Elisabeth B Binder
  • , Marco P M Boks
  • Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Heidelberglaan 100, 3584 CX Utrecht, The Netherlands.
  • Utrecht University, Netherlands
  • Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich 80804, Germany.
  • Research Centre Adolescent Development, Department Youth &Family, University Utrecht (UU), Utrecht 3584 CS, The Netherlands.
  • Department of Developmental Psychology, VU University, Amsterdam 1081 BT, The Netherlands.
  • Department of Developmental Psychology, Tilburg University 5000 LE, Tilburg, The Netherlands.
  • Department of Biobehavioral Health, Pennsylvania State University, University Park, PA 16802, USA.
  • Department of Psychiatry and Behavioral Sciences, Leonard M. Miller School of Medicine, University of Miami, Miami, 33136, Florida, USA.
  • Medical Research Council-Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, United Kingdom; [email protected] [email protected] [email protected].
  • School of Biological Sciences, University of Essex, CO4 3SQ Colchester, UK.
  • Hubrecht Institute-KNAW and University Medical Center Utrecht (UMCU), Utrecht 3584CT, The Netherlands.
  • Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht (UMCU), Universiteitsweg 100, 3584 CG Utrecht, The Netherlands.
  • Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, Georgia 30329, USA.

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

DNA methylation likely plays a role in the regulation of human stress reactivity. Here we show that in a genome-wide analysis of blood DNA methylation in 85 healthy individuals, a locus in the Kit ligand gene (KITLG; cg27512205) showed the strongest association with cortisol stress reactivity (P=5.8 × 10(-6)). Replication was obtained in two independent samples using either blood (N=45, P=0.001) or buccal cells (N=255, P=0.004). KITLG methylation strongly mediates the relationship between childhood trauma and cortisol stress reactivity in the discovery sample (32% mediation). Its genomic location, a CpG island shore within an H3K27ac enhancer mark, and the correlation between methylation in the blood and prefrontal cortex provide further evidence that KITLG methylation is functionally relevant for the programming of stress reactivity in the human brain. Our results extend preclinical evidence for epigenetic regulation of stress reactivity to humans and provide leads to enhance our understanding of the neurobiological pathways underlying stress vulnerability.

Original languageEnglish
Pages (from-to)10967
JournalNature communications
Volume7
DOIs
Publication statusPublished - 21 Mar 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Adolescent
  • Adult
  • Age Factors
  • Aged
  • Child
  • DNA Methylation/genetics
  • Epigenesis, Genetic
  • Ethnic Groups/genetics
  • Female
  • Gene Regulatory Networks
  • Genetic Loci
  • Genome, Human
  • Genome-Wide Association Study
  • Histones/metabolism
  • Humans
  • Hydrocortisone/metabolism
  • Male
  • Middle Aged
  • Models, Genetic
  • Stem Cell Factor/genetics
  • Stress, Psychological/blood
  • Wounds and Injuries/blood
  • Young Adult

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