Cited by 97Stress Responses and CortisolAdrenal Hormones and DisordersEstrogen and related hormone effects

Disrupted corticosterone pulsatile patterns attenuate responsiveness to glucocorticoid signaling in rat brain

Sarabdjitsingh, R. Angela, Isenia, Sheena, Polman, Annelies, Mijalkovic, Jona, Lachize, Servane, Datson, Nicole, de Kloet, E. Ron, Meijer, Onno C.·2010·Endocrinology

Abstract

Chronically elevated circulating glucocorticoid levels are although to enhance vulnerability to psychopathology. Here we hypothesized that such sustained glucocorticoid levels, disturbing corticosterone pulsatility, attenuate glucocorticoid receptor signaling and target gene responsiveness to an acute challenge in the rat brain. Rats were implanted with vehicle or 40 or 100% corticosterone pellets known to flatten ultradian and circadian rhythmicity while maintaining daily average levels or mimic pathological conditions. Additionally, recovery from constant exposure was studied in groups that had the pellet removed 24 h prior to the challenge. Molecular markers for receptor responsiveness (receptor levels, nuclear translocation, promoter occupancy, and target gene expression) to an acute challenge mimicking the stress response (3 mg/kg ip) were studied in the hippocampal area. Implantation of 40 and 100% corticosterone pellets dose-dependently down-regulated glucocorticoid receptor and attenuated mineralocorticoid receptor and glucocorticoid receptor translocation to the acute challenge. Interestingly, whereas target gene Gilz expression to the challenge was already attenuated by tonic daily average levels (40%), Sgk-1 was affected only after constant high corticosterone exposure (100%), indicating altered receptor responsiveness due to treatment. Washout of 100% corticosterone recovered all molecular markers (partial), whereas removal of the 40% corticosterone pellet still a…

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Crossref · 10.1210/en.2009-1119

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  • Cerebral SGK1 is upregulated by glucocorticoids, corticotropin releasing hormone, hyperactivity, intracranial self-stimulation, chronic escalating morphine regimen, and clozapine.

    “Cerebral SGK1 is upregulated by glucocorticoids (Sato et al. 2008;Sarabdjitsingh et al. 2010), corticotropin releasing hormone (Sheng et al. 2008), hyperactivity (Kalinichev et al. 2008), intracranial self-stimulation (Huguet et al. 2009), chronic escalating morphine regimen (Befort et al. 2008) and administration of the antipsychotic drug clozapine (Robbins et al. 2008).”

    From Significance of SGK1 in the regulation of neuronal function (2010) · cites this paper as Sarabdjitsingh et al. 2010

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Authors
Sarabdjitsingh, R. A., Isenia, S., Polman, A., Mijalkovic, J., Lachize, S., Datson, N., de Kloet, E. R., & Meijer, O. C.
Affiliations
  • Leiden University (NL)
  • Division of Medical Pharmacology, Leiden/Amsterdam Centre for Drug Research/Leiden University Medical Centre, University of Leiden, 2300 RA Leiden, The Netherlands
Corresponding author
Sarabdjitsingh, R. Angela
Venue
Endocrinology
Published
2010-01-15
Volume
151
Issue
3
Pages
1177-1186
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2153433545
Cited by
97
References
0
Citations by year
2026: 2 · 2025: 1 · 2024: 2 · 2023: 5 · 2022: 6 · 2021: 4 · 2020: 5 · 2019: 5 · 2018: 4 · 2017: 10 · 2016: 7 · 2015: 4 · 2014: 13 · 2013: 8 · 2012: 8
FWCI
3.99
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
glucocorticoid receptor, mineralocorticoid receptor, glucocorticoid signaling, GILZ, SGK1, hippocampus, receptor saturation, stress response, circadian rhythm disruption
MeSH terms
Serum-Glucocorticoid Regulated Kinases, Activity Cycles, Animals, Brain, Corticosterone, Glucocorticoids, Hippocampus, Male, Promoter Regions, Genetic, Receptors, Glucocorticoid, Transcription Factors, Signal Transduction, Down-Regulation, Rats, Sprague-Dawley, Protein Serine-Threonine Kinases, Immediate-Early Proteins, Receptors, Mineralocorticoid, Gene Expression Profiling, Rats

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