A direct androgenic involvement in the expression of human corticotropin-releasing hormone

Mol Psychiatry. 2006 Jun;11(6):567-76. doi: 10.1038/sj.mp.4001800.

Abstract

We investigated the possibility of a direct action of androgens on the expression of the human corticotropin-releasing hormone (CRH), which plays a central role in the hypothalamic-pituitary-adrenal (HPA)-axis. Colocalization of CRH and nuclear/cytoplasmic androgen receptor (AR) was found in neurons of the paraventricular nucleus (PVN) in the human hypothalamus. A potential androgen-responsive element (ARE) in the human CRH promoter was subsequently analyzed with bandshifts and cotransfections in neuroblastoma cells. In the presence of testosterone, recombinant human AR bound specifically to the CRH-ARE. Expression of AR in combination with testosterone repressed CRH promoter activity through the ARE. We conclude that androgens may directly affect CRH neurons in the human PVN via AR binding to the CRH-ARE, which may have consequences for sex-specific pathogenesis of mood disorders.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Corticotropin-Releasing Hormone / genetics
  • Corticotropin-Releasing Hormone / metabolism*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Mood Disorders / physiopathology
  • Paraventricular Hypothalamic Nucleus / metabolism*
  • Receptors, Androgen / metabolism*
  • Response Elements / genetics
  • Response Elements / physiology*
  • Testosterone / physiology
  • Tissue Distribution

Substances

  • Receptors, Androgen
  • Testosterone
  • Corticotropin-Releasing Hormone