Cited by 104Nerve injury and regenerationStress Responses and CortisolEstrogen and related hormone effects

Corticosterone actions on the hippocampal brain-derived neurotrophic factor expression are mediated by Exon IV promoter

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Hansson, A. C., Sommer, W. H., Metsis, M., Strömberg, I., Agnati, L. F., Fuxe, K.·2006·Journal of Neuroendocrinology

Abstract

Brain-derived neurotrophic factor (BDNF) expression is strongly regulated by adrenocorticosteroids via activated gluco- and mineralocorticoid receptors. Four separate promoters are located upstream of the BDNF noncoding exons I to IV and may thus be involved in adrenocorticosteroid-mediated gene regulation. In adrenalectomised rats, corticosterone (10 mg/kg s.c.) induces a robust down-regulation of both BDNF mRNA and protein levels in the hippocampus peaking at 2-8 h. To study the role of the individual promoters in the corticosterone response, we employed exon-specific riboprobe in situ hybridisation as well as real-time polymerase chain reaction (PCR) in the dentate gyrus. We found a down-regulation, mainly of exon IV and the protein-coding exon V, in nearby all hippocampal subregions, but exon II was only down-regulated in the dentate gyrus. Exon I and exon III transcripts were not affected by corticosterone treatment. The results could be confirmed with real-time PCR in the dentate gyrus. It appears as if the exon IV promoter is the major target for corticosterone-mediated transcriptional regulation of BDNF in the hippocampus.

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Crossref · 10.1111/j.1365-2826.2005.01390.x

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Authors
Hansson, A. C., Sommer, W. H., Metsis, M., Strömberg, I., Agnati, L. F., & Fuxe, K.
Affiliations
  • Karolinska Institutet (SE)
  • National Institute on Alcohol Abuse and Alcoholism (US)
  • Umeå University (SE)
  • University of Modena and Reggio Emilia (IT)
Corresponding author
Hansson, A. C.
Venue
Journal of Neuroendocrinology
Publisher
Wiley
Published
2005-12-15
Volume
18
Issue
2
Pages
104-114
ISSN
  • 0953-8194 (ISSN-L)
  • 1365-2826
OpenAlex
W1976481435
Cited by
104
References
61
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 3 · 2018: 4 · 2017: 6 · 2016: 8 · 2015: 6 · 2014: 5 · 2013: 8 · 2012: 10
FWCI
2.28
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
  • Marcus Foundation
  • Vetenskapsrådet
  • Marcus och Amalia Wallenbergs minnesfond
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
corticosterone, brain-derived neurotrophic factor, BDNF expression, hippocampus, glucocorticoid receptor, mineralocorticoid receptor, dentate gyrus, transcriptional regulation, adrenalectomy
MeSH terms
Adrenalectomy, Analysis of Variance, Animals, Corticosterone, Exons, Gene Expression Regulation, Hippocampus, Male, Promoter Regions, Genetic, RNA, Messenger, Time Factors, Transcription, Genetic, Down-Regulation, Rats, Sprague-Dawley, Brain-Derived Neurotrophic Factor, Rats

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