Cited by 125Stress Responses and CortisolSignaling Pathways in DiseaseEstrogen and related hormone effects

Modulation of glucocorticoid receptor nuclear translocation in neurons by immunophilins FKBP51 and FKBP52: Implications for major depressive disorder

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Tatro, Erick T., Everall, Ian P., Kaul, Marcus, Achim, Cristian L.·2009·Brain Research

Abstract

Mood disorders associated with dysfunction of the hypothalamic-pituitary-adrenal (HPA) axis are common psychiatric conditions. The glucocorticoid receptor (GR) is a steroid-activated nuclear receptor that, upon binding to cortisol, translocates to the nucleus where it targets genes related to neuronal metabolism and plasticity. In patients suffering from major depressive disorder (MDD), hypercortisolemia is a common finding. In the current study we investigated the molecular events associated with the FK506 binding proteins (FKBP) -52 and -51 response to cortisol exposure in neuronal cell cultures and their effect on GR translocation. We noted that FK506 altered nuclear localization of the GR and inhibited expression of GR-responsive genes. Furthermore, si-RNA knockdown of FKBP4 gene, coding for the immunophilin FKBP52, inhibited cortisol-activated GR nuclear translocation, while knockdown of FKBP5, coding for immunophilin FKBP51, was associated with increased baseline GR nuclear localization. We propose that immunophilins are modulators of the cortisol-HPA axis response to stress and related chronic brain disorders.

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Registry

Crossref · 10.1016/j.brainres.2009.06.036

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  • FKBP51 inhibits GR ligand binding, nuclear translocation and transcriptional activity, while FKBP52 potentiates each of these activities.

    “FKBP51 inhibits GR ligand binding, nuclear translocation and transcriptional activity, while FKBP52 potentiates each of these fundamental GR activities22–32.”

    From Cryo-EM reveals how Hsp90 and FKBP immunophilins co-regulate the glucocorticoid receptor (2023) · cites this paper as [25]

    The Introduction and Discussion report that FKBP52 promotes GR nuclear translocation and that FKBP51 knockdown increases baseline nuclear localization of GR in neurons. The cited passages do not establish that each protein has the claimed opposing effects on GR ligand binding or transcriptional activity; the Results measure a transcriptional effect of FK506 pretreatment, not of each protein separately. Page numbers are unavailable in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • FKBP52 stabilizes ligand-bound GR, resulting in enhanced ligand affinity, and facilitates rapid GR nuclear translocation on dynein, allowing GR to proceed with dimerization and transcription activation.

    “FKBP52 stabilizes ligand-bound GR, resulting in enhanced ligand affinity, and facilitates rapid GR nuclear translocation on dynein22,24,25,65, allowing GR to proceed with dimerization and transcription activation.”

    From Cryo-EM reveals how Hsp90 and FKBP immunophilins co-regulate the glucocorticoid receptor (2023) · cites this paper as [25]

    The Introduction says FKBP52 links GR to dynein, and reports that FKBP52 knockdown slowed cortisol-activated GR nuclear translocation; the Discussion describes FKBP52 as promoting a fast GR response. Our copy does not establish that FKBP52 enhances ligand affinity by stabilizing ligand-bound GR, or that it enables subsequent dimerization and transcription activation. The indexed passages have section labels but no page numbers. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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2 of the 61 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Limited AS 2008 Antibody Review to Mouse Anti FKBP51 ab46002 Vol., ed.∧eds AbCam Incorporated Cambridge, MA
  2. Tatro ET 2008 Immunophilins FKBP52 and FKBP51 Modulate Glucocorticoid Receptor Distribution in Neurons and are Altered in HIV and Major Depressive Disorder [Dissertation] Cellular and Molecular Pathology University of Pittsburgh School of Medicine Pittsburgh, PA 210

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Authors
Tatro, E. T., Everall, I. P., Kaul, M., & Achim, C. L.
Affiliations
  • University of Pittsburgh (US)
  • University of California San Diego (US)
  • Sanford Burnham Prebys Medical Discovery Institute (US)
Corresponding author
Tatro, Erick T.
Venue
Brain Research
Publisher
Elsevier BV
Published
2009-08
Volume
1286
Pages
1-12
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2000320359
Cited by
125
References
61
Citations by year
2026: 2 · 2024: 8 · 2023: 8 · 2022: 10 · 2021: 11 · 2020: 7 · 2019: 8 · 2018: 8 · 2017: 7 · 2016: 14 · 2015: 8 · 2014: 9 · 2013: 4 · 2012: 5
FWCI
2.68
Type
journal article
Language
en
Open access
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • Center for AIDS Research, University of Washington
  • University of California, San Diego
  • National Institute of Mental Health (R01MH079881, P30MH62512, MH076681, R41MH079728, R25MH074508, R21MH076681, R25MH081482, P30MH062512)
  • National Institute of Allergy and Infectious Diseases (AI-36214, P30AI036214)
  • National Institute of Neurological Disorders and Stroke (R01NS050621)
  • National Institute of Biomedical Imaging and Bioengineering (T32EB001026)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
glucocorticoid receptor, nuclear translocation, FKBP51, FKBP52, FKBP4, immunophilins, major depressive disorder, hypothalamic-pituitary-adrenal axis, cortisol, hypercortisolism, neuronal gene expression, stress response, siRNA knockdown
MeSH terms
Tacrolimus Binding Protein 5, Cells, Cultured, Depressive Disorder, Major, Major Depressive Disorder, Fluorescent Antibody Technique, Gene Expression Regulation, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Neurons, Pituitary-Adrenal System, Receptors, Glucocorticoid, Gene Expression, Protein Transport, Tacrolimus Binding Proteins, RNA, Small Interfering

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