Cited by 96Neurotransmitter Receptor Influence on BehaviorGenetic Mapping and Diversity in Plants and AnimalsGenetic Associations and Epidemiology

Localization of Genes Mediating Acute and Sensitized Locomotor Responses to Cocaine in BXD/Ty Recombinant Inbred Mice

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Phillips, Tamara J., Huson, Mary G., McKinnon, Carrie S.·1998·The Journal of Neuroscience

Abstract

Sensitization to the psychostimulant effects of cocaine has received widespread attention because concomitant changes occur in neurochemical pathways that are part of the brain reward pathway. The current study was undertaken with the purpose of mapping genes determining sensitivity to the acute stimulant and sensitizing effects of cocaine. Sensitivity and sensitization to cocaine (5, 10, and 40 mg/kg) were measured in 25 BXD/Ty recombinant inbred (BXD RI) strains and the progenitor C57BL/6J (B6) and DBA/2J (D2) strains. Quantitative trait locus (QTL) mapping provisionally localized cocaine sensitivity genes to regions on all chromosomes except 6, 11, 17, and X; sensitization QTLs were localized to chromosomes 1–10, 13, 15, 18, 19, and X. Provisional QTLs for locomotion after saline injection in a novel setting were mapped to chromosomes 1, 3–6, 9, 12, 13, 18, and 19 and in a familiar setting to chromosomes 4–7, 9, 13, and 19. There were both common and unique QTL regions across the phenotypes. Evidence for a genetic association between magnitude of acute cocaine response and sensitization was obtained for only the 10 mg/kg dose. Some common QTL regions for cocaine, ethanol, and methamphetamine responses suggest the possibility that these drugs induce stimulant effects or sensitization through some common mechanisms. However, independent mechanisms were also indicated. Many candidate genes reside near the provisional QTLs mapped for cocaine responses, including genes coding a variety of neurotransmitter and hormone receptors. These data, once confirmed, should prove useful for directing investigations of acute and chronic cocaine effects down already suspected and novel avenues.

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Crossref · 10.1523/jneurosci.18-08-03023.1998

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  1. Silver L M, Nadeau JH (1997) Mammalian genome, Vol 7. New York: Springer.

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Authors
Phillips, T. J., Huson, M. G., & McKinnon, C. S.
Affiliations
Oregon Health & Science University (US)
Venue
The Journal of Neuroscience
Published
1998-04-15
Volume
18
Issue
8
Pages
3023-3034
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1614699707
Cited by
96
References
89
Citations by year
2025: 1 · 2022: 6 · 2021: 3 · 2020: 1 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 2 · 2014: 5 · 2013: 4 · 2012: 6
FWCI
1.84
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
  • U.S. Department of Veterans Affairs
  • National Institute on Alcohol Abuse and Alcoholism (P60AA010760)
  • National Institute on Drug Abuse
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
cocaine sensitization, locomotor activity, quantitative trait loci, gene mapping, candidate genes, neurotransmitter receptors, psychostimulants, methamphetamine, brain reward system
MeSH terms
Ethanol, Animals, Association Learning, Behavior, Animal, Central Nervous System Depressants, Cocaine, Conditioning, Psychological, Female, Genetic Markers, Locomotion, Male, Mice, Inbred C57BL, Mice, Inbred DBA, Recombinant Proteins, Dopamine Uptake Inhibitors, Quantitative Trait, Heritable, Mice

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