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The Role of Protein Synthesis in Striatal Long-Term Depression

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Yin, Henry H., Davis, Margaret I., Ronesi, Jennifer A., Lovinger, David M.·2006·The Journal of Neuroscience

Abstract

Long-term depression (LTD) at the corticostriatal synapse is postsynaptically induced but presynaptically expressed, the depression being a result of retrograde endocannabinoid signaling that activates presynaptic cannabinoid CB 1 receptors and reduces the probability of glutamate release. To study the role of protein synthesis in striatal LTD, we used a striatum-only preparation in which the presynaptic cell body is cut off, leaving intact only its axons, whose terminals synapse on medium spiny neurons. LTD (duration >150 min) was induced in this preparation, thus providing evidence that transcription in the presynaptic cell nucleus is not necessary for this form of plasticity. The maintenance of striatal LTD, however, was blocked by bath application of protein translation inhibitors but not by the same inhibitors loaded into the postsynaptic cell. These results suggest that local translation is critical for the expression of striatal LTD, distinguishing this form of mammalian synaptic plasticity from other forms that require postsynaptic protein synthesis. Possible roles of axonal or glial translation in striatal LTD are considered.

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Crossref · 10.1523/jneurosci.3196-06.2006

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Authors
Yin, H. H., Davis, M. I., Ronesi, J. A., & Lovinger, D. M.
Affiliations
National Institutes of Health (US)
Corresponding author
Lovinger, David M.
Venue
The Journal of Neuroscience
Published
2006-11-15
Volume
26
Issue
46
Pages
11811-11820
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2024613165
Cited by
101
References
39
Citations by year
2026: 1 · 2024: 4 · 2022: 3 · 2021: 6 · 2020: 5 · 2019: 5 · 2018: 7 · 2017: 11 · 2016: 7 · 2015: 3 · 2014: 2 · 2013: 11 · 2012: 1
FWCI
2.78
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Alcohol Abuse and Alcoholism
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
Keywords
long-term depression, striatum, corticostriatal synapses, protein synthesis, local protein translation, retrograde endocannabinoid signaling, CB1 receptor, presynaptic plasticity, glutamate release, medium spiny neurons, axonal translation, synaptic plasticity
MeSH terms
Afferent Pathways, Animals, Animals, Newborn, Cell Nucleus, Cerebral Cortex, Corpus Striatum, Cycloheximide, Nerve Tissue Proteins, Synaptic Transmission, Organ Culture Techniques, Protein Synthesis Inhibitors, Protein Biosynthesis, Rats, Sprague-Dawley, Presynaptic Terminals, Patch-Clamp Techniques, Glutamic Acid, Long-Term Synaptic Depression, Receptor, Cannabinoid, CB1, Rats, Cannabinoid Receptor Modulators

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