Cited by 175Treatment of Major DepressionNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Fast-Acting Antidepressants Rapidly Stimulate ERK Signaling and BDNF Release in Primary Neuronal Cultures

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Lepack, Ashley E., Bang, Eunyoung, Lee, Boyoung, Dwyer, Jason M., Duman, Ronald S.·2016·Neuropharmacology

Abstract

Recent preclinical and clinical studies demonstrate that three functionally different compounds, the NMDA receptor channel blocker ketamine, mGlu 2/3 receptor antagonist LY341495, and NMDA receptor glycine site agent GLYX-13 produce rapid and long lasting antidepressant effects. Furthermore, these agents are reported to stimulate ERK and mTORC1 signaling in brain. Here we used rat primary cortical culture neurons to further examine the cellular actions of these agents. The results demonstrate that low concentrations of all three compounds rapidly increase levels of the phosphorylated and activated forms of ERK and a downstream target of mTORC1, p70S6 kinase, in a concentration and time dependent manner. In addition, each compound rapidly increases BDNF release into the culture media. Further studies demonstrate that induction of BDNF release, as well as stimulation of phospho-ERK is blocked by incubation with an AMPA receptor antagonist. The requirement for AMPA receptor stimulation suggests that the effects of these rapid agents are activity dependent. This possibility is supported by studies demonstrating that neuronal silencing, via incubation with the GABA A receptor agonist muscimol, completely blocks phospho-ERK and BDNF release by each agent. Finally, incubation with each drug for 24 h increases the number and length of neuronal branches. Together, the results demonstrate that these three different rapid acting antidepressant agents increase ERK signaling and BDNF release in an activity dependent manner that leads to increased neuronal complexity. Further studies will be required to determine the exact mechanisms underlying these effects in cultured neurons and in rodent models.

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Crossref · 10.1016/j.neuropharm.2016.09.011

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  1. Burgdorf J Zhang XL Nicholson KL Balster RL Leander JD Stanton PK Gross AL Kroes RA Moskal JR GLYX-13, a NMDA receptor glycine-site functional partial agonist, induces antidepressant-like effects without ketamine-like side effects Neuropsychopharmacology 2013 38 729 742 23303054 PMC3671991
  2. Lepack AE Fuchikami M Dwyer JM Banasr M Duman RS BDNF release is required for the behavioral actions of ketamine Int J Neuropsychopharmacol 2015 18 PMC4368871 25539510

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Authors
Lepack, A. E., Bang, E., Lee, B., Dwyer, J. M., & Duman, R. S.
Affiliations
Yale University (US)
Corresponding author
Duman, Ronald S.
Venue
Neuropharmacology
Publisher
Elsevier BV
Published
2016-12
Volume
111
Pages
242-252
ISSN
0028-3908 (ISSN-L)
OpenAlex
W2518741199
Cited by
174
References
42
Citations by year
2026: 7 · 2025: 14 · 2024: 15 · 2023: 20 · 2022: 23 · 2021: 18 · 2020: 20 · 2019: 24 · 2018: 20 · 2017: 13
FWCI
15.38
Type
journal article
Language
en
Open access
Locations
  • Neuropharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIMH (R37MH45481, R01MH93897)
  • State of Connecticut
  • Yale University
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
rapid-acting antidepressants, ketamine, LY341495, ERK signaling, BDNF release, mTORC1, p70 S6 kinase, AMPA receptors, activity-dependent plasticity, neuronal morphology, cortical neurons, muscimol, GABAA receptor
MeSH terms
Amino Acids, Animals, Antidepressive Agents, Cells, Cultured, Cerebral Cortex, Dendrites, Ketamine, Oligopeptides, Xanthenes, Receptors, AMPA, Brain-Derived Neurotrophic Factor, Receptor, trkB, MAP Kinase Signaling System, Rats, GABAergic Neurons, Primary Cell Culture

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