Cited by 261Cannabis and Cannabinoid ResearchNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Endocannabinoid-mediated long-term plasticity requires cAMP/PKA signaling and RIM1α

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Chevaleyre, Vivien, Heifets, Boris D., Kaeser, Pascal S., Südhof, Thomas C., Castillo, Pablo E.·2007·Neuron

Abstract

Endocannabinoids (eCBs) have emerged as key activity-dependent signals that, by activating presynaptic cannabinoid receptors (i.e., CB1) coupled to G(i/o) protein, can mediate short-term and long-term synaptic depression (LTD). While the presynaptic mechanisms underlying eCB-dependent short-term depression have been identified, the molecular events linking CB1 receptors to LTD are unknown. Here we show in the hippocampus that long-term, but not short-term, eCB-dependent depression of inhibitory transmission requires presynaptic cAMP/PKA signaling. We further identify the active zone protein RIM1alpha as a key mediator of both CB1 receptor effects on the release machinery and eCB-dependent LTD in the hippocampus. Moreover, we show that eCB-dependent LTD in the amygdala and hippocampus shares major mechanistic features. These findings reveal the signaling pathway by which CB1 receptors mediate long-term effects of eCBs in two crucial brain structures. Furthermore, our results highlight a conserved mechanism of presynaptic plasticity in the brain.

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Crossref · 10.1016/j.neuron.2007.05.020

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  • In vertebrates, RIM1α is required for all types of long-term presynaptic plasticity analyzed.

    “In vertebrates, RIM1α is additionally required for all types of long-term presynaptic plasticity analyzed (Castillo et al., 2002; Huang et al., 2005; Chevaleyre et al., 2007; Fourcaudot et al., 2008; Pelkey et al., 2008; Lachamp et al., 2009).”

    From The Presynaptic Active Zone (2012) · cites this paper as Chevaleyre et al., 2007

  • All forms of presynaptic long-term plasticity investigated-both LTP and LTD-are blocked by the constitutive knockout of RIM1α.

    “Strikingly, up to now all forms of presynaptic long-term plasticity investigated—both long-term potentiation (LTP) and long-term depression (LTD)—are blocked by the constitutive knockout of RIM1α (which only partly impairs basal release since all other RIM isoforms are still present), suggesting that the amount of RIM1α available at a synapse is crucial (Castillo et al., 2002; Chevaleyre et al., 2”

    From The Presynaptic Active Zone (2012) · cites this paper as Chevaleyre et al., 2007

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Authors
Chevaleyre, V., Heifets, B. D., Kaeser, P. S., Südhof, T. C., & Castillo, P. E.
Affiliations
  • Albert Einstein College of Medicine (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Castillo, Pablo E.
Venue
Neuron
Publisher
Elsevier BV
Published
2007-06
Volume
54
Issue
5
Pages
801-812
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2033328335
Cited by
261
References
0
Citations by year
2026: 1 · 2025: 13 · 2024: 7 · 2023: 9 · 2022: 11 · 2021: 13 · 2020: 20 · 2019: 3 · 2018: 11 · 2017: 17 · 2016: 16 · 2015: 10 · 2014: 15 · 2013: 13 · 2012: 22
FWCI
12.92
Type
journal article
Language
en
Update notices
erratum (2007-07-05)
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • Epilepsy Foundation
  • National Institutes of Health
  • National Institute on Drug Abuse (R01DA017392)
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
endocannabinoids, CB1 receptor, long-term depression, presynaptic plasticity, cAMP/PKA signaling, active zone, synaptic inhibition, hippocampus, amygdala, G protein-coupled receptor signaling
MeSH terms
Cyclic AMP, Amygdala, Animals, Hippocampus, Male, Mice, Inbred C57BL, Neural Inhibition, Neural Pathways, Synaptic Transmission, Organ Culture Techniques, Signal Transduction, Cyclic AMP-Dependent Protein Kinases, Mice, Knockout, GTP-Binding Proteins, Long-Term Synaptic Depression, Receptor, Cannabinoid, CB1, Mice, Cannabinoid Receptor Modulators, Endocannabinoids

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