Cited by 378Stress Responses and CortisolTreatment of Major DepressionNeuropeptides and Animal Physiology

Acquired deficit of forebrain glucocorticoid receptor produces depression-like changes in adrenal axis regulation and behavior

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Boyle, Maureen P., Brewer, Judson A., Funatsu, Michiyo, Wozniak, David F., Tsien, Joe Z., Izumi, Yukitoshi, Muglia, Louis J.·2005·Proceedings of the National Academy of Sciences

Abstract

Dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis is a hallmark of major depressive disorder. A number of studies have shown that this dysregulation is correlated with impaired forebrain glucocorticoid receptor (GR) function. To determine whether a primary, acquired deficit in forebrain GR signaling is an etiologic factor in the pathogenesis of depression, we generated a line of mice with time-dependent, forebrain-specific disruption of GR (FBGRKO). These mice develop a number of both physiological and behavioral abnormalities that mimic major depressive disorder in humans, including hyperactivity of the HPA axis, impaired negative feedback regulation of the HPA axis and, increased depression-like behavior. Importantly, a number of these abnormalities are normalized by chronic treatment with the tricyclic antidepressant, imipramine. Our findings suggest that imipramine's proposed activities on forebrain GR function are not essential for its antidepressant effects, and that alteration in GR expression may play a causative role in disease onset of major depressive disorder.

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Crossref · 10.1073/pnas.0406458102

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  • Broad disruption of the GR allele in the CNS and its targeted deletion in the forebrain or PVN resulted in disinhibition of the HPA axis.

    “Finally, the broad disruption of the GR allele in the CNS [GRNesCre (5)] and its targeted deletion in the forebrain [forebrain-specific GR knock-out; FBGRKO mice] (119), or the PVN all resulted in the disinhibition of the HPA axis (120).”

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Authors
Boyle, M. P., Brewer, J. A., Funatsu, M., Wozniak, D. F., Tsien, J. Z., Izumi, Y., & Muglia, L. J.
Affiliations
Princeton University (US)
Corresponding author
Muglia, Louis J.
Venue
Proceedings of the National Academy of Sciences
Published
2004-12-27
Volume
102
Issue
2
Pages
473-478
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2156404675
Cited by
378
References
40
Citations by year
2026: 3 · 2025: 9 · 2024: 13 · 2023: 9 · 2022: 14 · 2021: 10 · 2020: 15 · 2019: 20 · 2018: 21 · 2017: 15 · 2016: 16 · 2015: 18 · 2014: 29 · 2013: 20 · 2012: 29
FWCI
7.13
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
glucocorticoid receptor, major depressive disorder, hypothalamic-pituitary-adrenal axis, HPA axis dysregulation, negative feedback regulation, depression-like behavior, imipramine, tricyclic antidepressants, antidepressant mechanism, glucocorticoid signaling
MeSH terms
Animals, Corticotropin-Releasing Hormone, Depression, Hippocampus, Hypothalamo-Hypophyseal System, Imipramine, Mice, Inbred CBA, Mice, Inbred C57BL, Pituitary-Adrenal System, Receptors, Glucocorticoid, RNA, Messenger, Time Factors, Prosencephalon, Mice, Knockout, Mice

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