Cited by 75Stress Responses and CortisolTreatment of Major DepressionTryptophan and brain disorders

Clomipramine in vitro reduces glucocorticoid receptor function in healthy subjects but not in patients with major depression

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Carvalho, Livia A, Juruena, Mario F, Papadopoulos, Andrew S, Poon, Lucia, Kerwin, Rob, Cleare, Anthony J, Pariante, Carmine M·2008·Neuropsychopharmacology

Abstract

Previously, we have shown that in vitro antidepressants modulate glucocorticoid receptor (GR) function and expression, and have suggested that these effects could be relevant for the mechanism of action of antidepressants. To further clarify the interaction between antidepressants and glucocorticoids, we evaluated the in vitro effect of the tricyclic antidepressant, clomipramine (CMI), on the GR function in 15 treatment-resistant depressed inpatients and 28 healthy controls. Diluted whole-blood cells were incubated for 24 h in the presence or absence of CMI (10 muM). Glucocorticoid function was measured by glucocorticoid inhibition of lypopolysaccharide (LPS)-stimulated interleukin-6 (IL-6) levels. The results show that glucocorticoids (dexamethasone, prednisolone, cortisol and corticosterone) caused a concentration-dependent inhibition of LPS-stimulated IL-6 levels. In healthy controls, CMI decreased glucocorticoid inhibition of LPS-stimulated IL-6 levels, while this effect was not present in depressed patients. Therefore, depressed patients, who were clinically treatment resistant, also showed a lack of effect of the antidepressant in vitro. Upcoming studies shall test whether assessing the effects of antidepressants in vitro on GR function could predict future treatment response in a clinical setting.

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Authors
Carvalho, L. A., Juruena, M. F., Papadopoulos, A. S., Poon, L., Kerwin, R., Cleare, A. J., & Pariante, C. M.
Affiliations
King's College London (GB)
Corresponding author
Carvalho, Livia A
Venue
Neuropsychopharmacology
Published
2008-03-26
Volume
33
Issue
13
Pages
3182-3189
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2048418520
Cited by
75
References
42
Citations by year
2026: 2 · 2025: 3 · 2024: 2 · 2023: 2 · 2022: 1 · 2021: 2 · 2020: 4 · 2019: 8 · 2018: 7 · 2017: 7 · 2016: 2 · 2015: 5 · 2014: 5 · 2013: 2 · 2012: 2
FWCI
3.13
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • South London and Maudsley NHS Foundation Trust
  • National Alliance for Research on Schizophrenia and Depression
  • National Institute for Health and Care Research
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
clomipramine, glucocorticoid receptor, major depressive disorder, treatment-resistant depression, tricyclic antidepressants, antidepressant mechanism, interleukin-6, lipopolysaccharide, glucocorticoid inhibition, dexamethasone, prednisolone, cortisol, corticosterone, whole blood cells, treatment response prediction
MeSH terms
Adult, Brain, Brain Chemistry, Cells, Cultured, Clomipramine, Major Depressive Disorder, Dose-Response Relationship, Drug, Female, Glucocorticoids, Humans, Hypothalamo-Hypophyseal System, Inflammation, Lipopolysaccharides, Male, Middle Aged, Pituitary-Adrenal System, Receptors, Glucocorticoid, Stress, Psychological, Down-Regulation, Interleukin-6, Selective Serotonin Reuptake Inhibitors, Inflammation Mediators

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