Corticotropin-releasing hormone regulates common target genes with divergent functions in corticotrope and neuronal cells

  • Cornelia Graf
  • , Claudia Kuehne
  • , Markus Panhuysen
  • , Benno Puetz
  • , Peter Weber
  • , Florian Holsboer
  • , Wolfgang Wurst
  • , Jan M. Deussing

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

As a key regulator of the neuroendocrine stress axis and as a neuromodulator in the brain, the neuropeptide corticotropin-releasing hormone (CRH) plays an important role in various diseases of the central nervous system. Its cognate receptor CRH receptor type 1 (CRHR1) is a potential novel target for the therapeutic intervention in major depressive disorder. Therefore, a more precise understanding of involved intracellular signaling mechanisms is essential. The objective of this project was to identify specific target genes of CRHR1-mediated signaling pathways in the corticotrope cell line AtT-20 and in the neuronal cell line HN9 using microarray technology and qRT-PCR, respectively. In addition, we assessed the capacity of validated target genes to directly impact on CRHR1-dependent signaling using reporter assays. Thereby, we identified a set of CRHR1 downstream targets with diverging and cell type-specific roles which strengthen the role of CRH and CRHR1 as dynamic modulators of a variety of signal transduction mechanisms and cellular processes.

Original languageEnglish
Pages (from-to)29-38
Number of pages10
JournalMolecular and Cellular Endocrinology
Volume362
Issue number1-2
DOIs
StatePublished - 15 Oct 2012

Keywords

  • AtT-20
  • CRHR1
  • Corticotropin-releasing hormone
  • Expression profiling
  • HPA axis

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