Cited by 145Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchSubstance Abuse Treatment and Outcomes

Effect of the Novel Positive Allosteric Modulator of Metabotropic Glutamate Receptor 2 AZD8529 on Incubation of Methamphetamine Craving After Prolonged Voluntary Abstinence in a Rat Model

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Caprioli, Daniele, Venniro, Marco, Zeric, Tamara, Li, Xuan, Adhikary, Sweta, Madangopal, Rajtarun, Marchant, Nathan J., Lucantonio, Federica +3 more·2015·Biological Psychiatry

Abstract

Background Cue-induced methamphetamine craving increases after prolonged forced (experimenter-imposed) abstinence from the drug (incubation of methamphetamine craving). Here, we determined whether this incubation phenomenon would occur under conditions that promote voluntary (self-imposed) abstinence. We also determined the effect of the novel metabotropic glutamate receptor 2 positive allosteric modulator, AZD8529, on incubation of methamphetamine craving after forced or voluntary abstinence.Methods We trained rats to self-administer palatable food (6 sessions) and then to self-administer methamphetamine under two conditions: 12 sessions (9 hours/day) or 50 sessions (3 hours/day). We then assessed cue-induced methamphetamine seeking in extinction tests after 1 or 21 abstinence days. Between tests, the rats underwent either forced abstinence (no access to the food- or drug-paired levers) or voluntary abstinence (achieved via a discrete choice procedure between methamphetamine and palatable food; 20 trials per day) for 19 days. We also determined the effect of subcutaneous injections of AZD8529 (20 and 40 mg/kg) on cue-induced methamphetamine seeking 1 day or 21 days after forced or voluntary abstinence.Results Under both training and abstinence conditions, cue-induced methamphetamine seeking in the extinction tests was higher after 21 abstinence days than after 1 day (incubation of methamphetamine craving). AZD8529 decreased cue-induced methamphetamine seeking on day 21 but not day 1 of forced or voluntary abstinence.Conclusions We introduce a novel animal model to study incubation of drug craving and cue-induced drug seeking after prolonged voluntary abstinence, mimicking the human condition of relapse after successful contingency management treatment. Our data suggest that positive allosteric modulators of metabotropic glutamate receptor 2 should be considered for relapse prevention.

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Crossref · 10.1016/j.biopsych.2015.02.018

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  • In animal models, animals extensively trained to self-administer drugs will readily forego the drug if offered a potent non-drug alternative.

    “The critical role of alternative reinforcers was elegantly brought into modern neuroscience by Ahmed et al., who showed that rats extensively trained to self-administer cocaine would readily forego the drug if offered a sweet solution as an alternative [103].This was later also found to be the case for heroin [103], methamphetamine [104] and alcohol [105].”

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Authors
Caprioli, D., Venniro, M., Zeric, T., Li, X., Adhikary, S., Madangopal, R., Marchant, N. J., Lucantonio, F., Schoenbaum, G., Bossert, J. M., & Shaham, Y.
Affiliations
  • National Institutes of Health (US)
  • Johns Hopkins University (US)
Corresponding author
Caprioli, Daniele
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2015-10
Volume
78
Issue
7
Pages
463-473
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2022691480
Cited by
145
References
88
Citations by year
2026: 4 · 2025: 5 · 2024: 9 · 2023: 6 · 2022: 14 · 2021: 16 · 2020: 19 · 2019: 6 · 2018: 20 · 2017: 21 · 2016: 20 · 2015: 5
FWCI
10.22
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion, other-oa)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • AstraZeneca
  • National Institutes of Health
  • Medical Research Council
  • National Health and Medical Research Council (1053308)
  • National Institute on Drug Abuse (ZIADA000434)
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
incubation of craving, forced abstinence, mGluR2, positive allosteric modulators, relapse prevention, contingency management, extinction, self-administration
MeSH terms
Central Nervous System Stimulants, Animals, Cues, Disease Models, Animal, Extinction, Psychological, Food, Indoles, Methamphetamine, Oxadiazoles, Self Administration, Substance Withdrawal Syndrome, Time Factors, Volition, Receptors, Metabotropic Glutamate, Excitatory Amino Acid Agents, Amphetamine-Related Disorders, Rats, Drug-Seeking Behavior, Craving

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