Cited by 149Chemokine receptors and signalingAlcohol Consumption and Health EffectsNeurotransmitter Receptor Influence on Behavior

Perturbation of chemokine networks by gene deletion alters the reinforcing actions of ethanol

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BLEDNOV, Y, BERGESON, S, WALKER, D, FERREIRA, V, KUZIEL, W, HARRIS, R·2005·Behavioural Brain Research

Abstract

Microarray analysis of human alcoholic brain and cultured cells exposed to ethanol showed significant changes in expression of genes related to immune or inflammatory responses, including chemokines and chemokine receptors. To test the hypothesis that chemokines exhibit previously undiscovered pleiotropic effects important for the behavioral actions of ethanol, we studied mutant mice with deletion of the Ccr2, Ccr5, Ccl2 or Ccl3 genes. Deletion of Ccr2, Ccl2 (females) or Ccl3 in mice resulted in lower preference for alcohol and consumption of lower amounts of alcohol in a two-bottle choice test as compared with wild-type mice. Ethanol treatment (2.5 g/kg, i.p.) induced stronger conditioned taste aversion in Ccr2, Ccl2 or Ccl3 null mutant mice than in controls. Ccr2 and Ccr5 null mutant mice did not differ from wild-type mice in ethanol-induced loss of righting reflex (LORR), but mice lacking Ccl2 or Ccl3 showed longer LORR than wild-type mice. There were no differences between mutant strains and wild-type mice in severity of ethanol-induced withdrawal. Genetic mapping of chromosome 11 for the Ccl2 and Ccl3 genes (46.5 and 47.6 cM, respectively) revealed that an alcohol-induced LORR QTL region was contained within the introgressed region derived from 129/SvJ, which may cause some behavioral phenotypes observed in the null mice. On the contrary, known QTLs on Chr 9 are outside of 129/SvJ region in Ccr2 and Ccr5 (71.9 and 72.0 cM, respectively) null mutant mice. These data show that disruption of the chemokine network interferes with motivational effects of alcohol.

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Crossref · 10.1016/j.bbr.2005.06.026

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  • Proinflammatory cytokines found in alcoholic human brain increase the reward value of alcohol drinking in mice.

    “Proinflammatory cytokines found in alcoholic human brain (He and Crews, 2008) increase the reward value of alcohol drinking in mice (Blednov et al., 2005).”

    From Impulsivity, frontal lobes and risk for addiction (2009) · cites this paper as Blednov et al., 2005

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Authors
BLEDNOV, Y., BERGESON, S., WALKER, D., FERREIRA, V, KUZIEL, W., & HARRIS, R.
Affiliations
The University of Texas at Austin (US)
Corresponding author
BLEDNOV, Y
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
2005-11-30
Volume
165
Issue
1
Pages
110-125
ISSN
0166-4328 (ISSN-L)
OpenAlex
W2050082668
Cited by
149
References
90
Citations by year
2026: 4 · 2025: 2 · 2024: 7 · 2023: 8 · 2022: 6 · 2021: 7 · 2020: 12 · 2019: 7 · 2018: 14 · 2017: 17 · 2016: 13 · 2015: 6 · 2014: 8 · 2013: 5 · 2012: 14
FWCI
0.78
Type
journal article
Language
en
Open access
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5r01aa006399-36)
  • National Institute on Alcohol Abuse and Alcoholism (R01-AA006399, R37AA006399, AA 06399, U01AA013475, AA U01 13520, U01AA013520)
  • National Cancer Institute
Topics
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
chemokines, chemokine receptors, CCR2, CCR5, MCP-1, CCL3, ethanol reinforcement, alcohol preference, conditioned taste aversion, loss of righting reflex, ethanol withdrawal, quantitative trait loci, chromosome 11, chromosome 9, gene deletion mice, drinking motives
MeSH terms
Alcohol Drinking, Ethanol, Alcoholism, Animals, Association Learning, Conditioning, Classical, Disease Models, Animal, Female, Male, Mice, Inbred C57BL, Reinforcement, Psychology, Severity of Illness Index, Sex Factors, Substance Withdrawal Syndrome, Taste, Signal Transduction, Gene Deletion, Mice, Knockout, Chemokine CCL2, Macrophage Inflammatory Proteins, Receptors, Chemokine, Receptors, CCR5, Chemokines, CC, Mice, Receptors, CCR2, Chemokine CCL3, Chemokine CCL4

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