Cited by 179Treatment of Major DepressionNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Targeting Homeostatic Synaptic Plasticity for Treatment of Mood Disorders

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Kavalali, Ege T., Monteggia, Lisa M.·2020·Neuron

Abstract

Ketamine exerts rapid antidepressant action in depressed and treatment-resistant depressed patients within hours. At the same time, ketamine elicits a unique form of functional synaptic plasticity that shares several attributes and molecular mechanisms with well-characterized forms of homeostatic synaptic scaling. Lithium is a widely used mood stabilizer also proposed to act via synaptic scaling for its antimanic effects. Several studies to date have identified specific forms of homeostatic synaptic plasticity that are elicited by these drugs used to treat neuropsychiatric disorders. In the last two decades, extensive work on homeostatic synaptic plasticity mechanisms have shown that they diverge from classical synaptic plasticity mechanisms that process and store information and thus present a novel avenue for synaptic regulation with limited direct interference with cognitive processes. In this review, we discuss the intersection of the findings from neuropsychiatric treatments and homeostatic plasticity studies to highlight a potentially wider paradigm for treatment advance.

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Crossref · 10.1016/j.neuron.2020.05.015

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  • The synaptic scaling hypothesis proposes that ketamine restores stress-impaired excitatory synapses by blocking spontaneously activated NMDARs, reducing Ca2+ influx and CaMK/eEF2K activity, de-suppressing eEF2 translation, increasing GluA1 and BDNF, and raising synaptic AMPAR expression.

    “This hypothesis posits that ketamine restores stress-impaired excitatory synapses by blocking a subset of NMDARs that are preferentially activated by spontaneous glutamate release.”

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Authors
Kavalali, E. T., & Monteggia, L. M.
Affiliations
Vanderbilt University (US)
Corresponding author
  • Kavalali, Ege T.
  • Monteggia, Lisa M.
Venue
Neuron
Publisher
Elsevier BV
Published
2020-06
Volume
106
Issue
5
Pages
715-726
ISSN
0896-6273 (ISSN-L)
OpenAlex
W3033976424
Cited by
179
References
114
Citations by year
2026: 20 · 2025: 32 · 2024: 30 · 2023: 28 · 2022: 31 · 2021: 32 · 2020: 6
FWCI
3.18
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health
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
homeostatic plasticity, synaptic scaling, mood disorders, depression, ketamine, lithium, treatment-resistant depression, mania, synaptic regulation
MeSH terms
Animals, Bipolar Disorder, Depressive Disorder, Major, Major Depressive Disorder, Homeostasis, Humans, Ketamine, Neuronal Plasticity, Synapses, Lithium Compounds, Excitatory Amino Acid Antagonists, Antimanic Agents, Mood Disorders, Depressive Disorder, Treatment-Resistant

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