Oxytocin receptor DNA methylation in postpartum depression

Mary Kimmel, Makena Clive, Fiona Gispen, Jerry Guintivano, Tori Brown, Olivia Cox, Matthias W. Beckmann, Johannes Kornhuber, Peter A. Fasching, Lauren M. Osborne, Elisabeth Binder, Jennifer L. Payne, Zachary Kaminsky

Research output: Contribution to journalArticle

Abstract

The oxytocin receptor (OXTR) is a key regulator of stress and anxiety and may be regulated by both psychosocial risk factors and gonadal hormones, making it an attractive candidate for study in postpartum depression (PPD). The objective of this study was to investigate both serum hormone and PPD specific DNA methylation variation in the OXTR. Illumina HM450 microarray data generated in a prospective PPD cohort identified significant associations (P = 0.014) with PPD in an intronic region in the OXTR located 4 bp proximal to an estrogen receptor (ER) binding region. Pyrosequencing confirmed moderate evidence for an interaction of CpGs in the region with childhood abuse status to mediate PPD. These CpGs located on chr3 at positions 8810078 and 8810069 exhibited significant associations with postpartum depression scores from an independent cohort of 240 women with no prior psychiatric history. Hormone analysis suggested a PPD specific negative correlation of DNA methylation in the region with serum estradiol levels. Estradiol levels and OXTR DNA methylation exhibited a significant interaction to associate with the ratio of allopregnanolone to progesterone. Cumulatively, the data corroborate our previous hypotheses of a PPD specific increased sensitivity of epigenetic reprogramming at estrogen target genes and suggests that OXTR epigenetic variation may be an important mediator of mood relevant neuroactive steroid production.

Original languageEnglish (US)
Pages (from-to)150-160
Number of pages11
JournalPsychoneuroendocrinology
Volume69
DOIs
StatePublished - Jul 1 2016

Keywords

  • Allopregnanolone
  • DNA methylation
  • Estradiol
  • OXTR
  • Postpartum depression
  • Trauma

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology
  • Endocrine and Autonomic Systems
  • Psychiatry and Mental health
  • Biological Psychiatry

Fingerprint Dive into the research topics of 'Oxytocin receptor DNA methylation in postpartum depression'. Together they form a unique fingerprint.

  • Cite this

    Kimmel, M., Clive, M., Gispen, F., Guintivano, J., Brown, T., Cox, O., Beckmann, M. W., Kornhuber, J., Fasching, P. A., Osborne, L. M., Binder, E., Payne, J. L., & Kaminsky, Z. (2016). Oxytocin receptor DNA methylation in postpartum depression. Psychoneuroendocrinology, 69, 150-160. https://doi.org/10.1016/j.psyneuen.2016.04.008