Cited by 192Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchSubstance Abuse Treatment and Outcomes

Activation of Group II Metabotropic Glutamate Receptors Attenuates Both Stress and Cue-Induced Ethanol-Seeking and Modulates c-fos Expression in the Hippocampus and Amygdala

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Zhao, Yu, Dayas, Christopher V., Aujla, Harinder, Baptista, Marco A. S., Martin-Fardon, Rémi, Weiss, Friedbert·2006·The Journal of Neuroscience

Abstract

Major precipitating factors for relapse to drug use are stress and exposure to drug-related environmental stimuli. Group II (mGlu(2/3)) metabotropic glutamate receptors (mGluRs) are densely expressed within circuitries mediating the motivating effects of stress and drug cues and, therefore, may participate in regulating drug-seeking linked to both of these risk factors. Thus, we tested the hypothesis that pharmacological activation of group II mGluRs modifies both stress- and cue-induced ethanol-seeking, using reinstatement models of relapse. In parallel, brain c-fos expression was examined to identify neural substrates for the behavioral effects of group II mGluR activation. The selective mGlu(2/3) agonist LY379268 (1R,4R,5S,6R-2-oxa-4-aminobicyclo[3.1.0]hexane-4,6-dicarboxylate) (0.3, 1.0, and 3.0 mg/kg, s.c.) dose dependently blocked the recovery of extinguished ethanol-seeking induced by either footshock stress or ethanol-associated discriminative stimuli. These effects were accompanied by modulation of c-fos expression in the hippocampus, central nucleus of the amygdala, bed nucleus of the stria terminalis, and medial parvocellular paraventricular nucleus of the hypothalamus. The results implicate group II mGluRs as a shared neuropharmacological substrate for ethanol-seeking elicited by both drug cues and stress and identify group II mGluRs as promising treatment targets for relapse prevention.

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Crossref · 10.1523/jneurosci.2384-06.2006

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  • Agonism of Group II receptors leads to an increase in activity in the predominantly inhibitory BNST (but also in the PVN) in response to stress, overall suggesting a reduction in HPA activity via suppression of excitatory signaling.

    “Agonism of these receptors also leads to an increase in activity in the predominantly inhibitory BNST (but also in the PVN) in response to stress, overall suggesting a reduction in HPA activity via suppression of excitatory signaling.”

    From Glutamate receptors in domestication and modern human evolution (2020) · cites this paper as Zhao et al., 2006

  • Activation of Group II receptors is downregulated in the hippocampus.

    “At the same time, activation of Group II receptors is downregulated in the hippocampus (Zhao et al., 2006).”

    From Glutamate receptors in domestication and modern human evolution (2020) · cites this paper as Zhao et al., 2006

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Authors
Zhao, Y., Dayas, C. V., Aujla, H., Baptista, M. A. S., Martin-Fardon, R., & Weiss, F.
Affiliations
Scripps Research Institute (US)
Corresponding author
Dayas, Christopher V.
Venue
The Journal of Neuroscience
Published
2006-09-27
Volume
26
Issue
39
Pages
9967-9974
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1997540962
Cited by
192
References
42
Citations by year
2026: 2 · 2025: 4 · 2024: 1 · 2023: 4 · 2022: 7 · 2021: 13 · 2020: 5 · 2019: 13 · 2018: 12 · 2017: 9 · 2016: 11 · 2015: 8 · 2014: 13 · 2013: 12 · 2012: 14
FWCI
4.42
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Eli Lilly and Company
  • National Institutes of Health (AA06420)
  • Medical Research Council
  • National Health and Medical Research Council
  • National Institute on Alcohol Abuse and Alcoholism (AA 10531, R01AA010531, AA-06420, P50AA006420)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
group II metabotropic glutamate receptors, mGlu2/3 receptors, LY379268, ethanol seeking, relapse, stress, drug cues, reinstatement, Fos expression, hippocampus, amygdala, bed nucleus of the stria terminalis, paraventricular nucleus, alcoholism, relapse prevention
MeSH terms
Alcohol Drinking, Ethanol, Alcoholism, Amino Acids, Amygdala, Animals, Anxiety, Cues, Electroshock, Extinction, Psychological, Hippocampus, Limbic System, Male, Motivation, Nerve Tissue Proteins, Synaptic Transmission, Paraventricular Hypothalamic Nucleus, Reward, Self Administration, Septal Nuclei, Stress, Physiological, Proto-Oncogene Proteins c-fos, Genes, fos, Rats, Wistar, Receptors, Metabotropic Glutamate, Excitatory Amino Acid Agonists, Bridged Bicyclo Compounds, Heterocyclic, Rats, Secondary Prevention

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