Cited by 1,267Neurogenesis and neuroplasticity mechanismsTreatment of Major DepressionStress Responses and Cortisol

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

Neurogenesis-Dependent and -Independent Effects of Fluoxetine in an Animal Model of Anxiety/Depression

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Abstract

Understanding the physiopathology of affective disorders and their treatment relies on the availability of experimental models that accurately mimic aspects of the disease. Here we describe a mouse model of an anxiety/depressive-like state induced by chronic corticosterone treatment. Furthermore, chronic antidepressant treatment reversed the behavioral dysfunctions and the inhibition of hippocampal neurogenesis induced by corticosterone treatment. In corticosterone-treated mice where hippocampal neurogenesis is abolished by X-irradiation, the efficacy of fluoxetine is blocked in some, but not all, behavioral paradigms, suggesting both neurogenesis-dependent and -independent mechanisms of antidepressant action. Finally, we identified a number of candidate genes, the expression of which is decreased by chronic corticosterone and normalized by chronic fluoxetine treatment selectively in the hypothalamus. Importantly, mice deficient in one of these genes, beta-arrestin 2, displayed a reduced response to fluoxetine in multiple tasks, suggesting that beta-arrestin signaling is necessary for the antidepressant effects of fluoxetine.

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Crossref · 10.1016/j.neuron.2009.04.017

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Metadata

Authors
David, D. J., Samuels, B. A., Rainer, Q., Wang, J.-W., Marsteller, D., Mendez, I., Drew, M., Craig, D. A., Guiard, B. P., Guilloux, J.-P., Artymyshyn, R. P., Gardier, A. M., Gerald, C., Antonijevic, I. A., Leonardo, E. D., & Hen, R.
Affiliations
  • Université Paris-Sud (FR)
  • Columbia University (US)
  • Lundbeck (United States) (US)
Corresponding author
  • David, Denis J.
  • Hen, René
Venue
Neuron
Publisher
Elsevier BV
Published
2009-05
Volume
62
Issue
4
Pages
479-493
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2014099101
Cited by
1,267
References
63
Citations by year
2026: 26 · 2025: 51 · 2024: 47 · 2023: 69 · 2022: 63 · 2021: 79 · 2020: 66 · 2019: 91 · 2018: 72 · 2017: 78 · 2016: 87 · 2015: 93 · 2014: 104 · 2013: 99 · 2012: 80
FWCI
24.79
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (R37MH068542, K08MH076083, K99MH083943, R01MH068542)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD055165, 5-T32HD55165-02)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
fluoxetine, hippocampal neurogenesis, chronic corticosterone, anxiety, depression, antidepressant mechanism, X-ray irradiation, hypothalamus, β-arrestin2, β-arrestin signaling, candidate genes, mood disorders
MeSH terms
beta-Arrestins, beta-Arrestin 2, Doublecortin Domain Proteins, Analysis of Variance, Animals, Anxiety, Bromodeoxyuridine, Cell Survival, Corticosterone, Depression, Disease Models, Animal, Drug Administration Schedule, Exploratory Behavior, Feeding Behavior, Fluoxetine, Gene Expression Regulation, Hippocampus, Hypothalamus, Male, Mice, Inbred C57BL, Microtubule-Associated Proteins, Neuropeptides, Radiation, Reaction Time, RNA, Messenger, Mice, Knockout, Antidepressive Agents, Second-Generation, Arrestins, Cell Proliferation, Mice, GTP-Binding Protein alpha Subunit, Gi2, Neurogenesis

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