Cited by 283Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchReceptor Mechanisms and Signaling

D1 and D2 dopamine receptor function in the striatum: coactivation of D1- and D2-dopamine receptors on separate populations of neurons results in potentiated immediate early gene response in D1-containing neurons

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Gerfen, CR, Keefe, KA, Gauda, EB·1995·The Journal of Neuroscience

Abstract

D1- and D2-dopamine receptor-mediated regulation of immediate early gene levels in identified populations of neurons in the striatum was examined with quantitative in situ hybridization histochemical techniques. Levels of messenger RNA (mRNA) encoding the immediate early genes zif268 and c-fos were examined in two experiments in rats with unilateral lesions of the nigrostriatal dopamine pathway. In a dose- response study, animals were treated with doses of 0.5, 1.0, and 1.5 mg/kg of the D1 agonist SKF-38393 either alone or in combination with the D2 agonist quinpirole (1 mg/kg). Levels of immediate early gene mRNAs 60 min following drug treatments showed a dose-related increase to the D1 agonist alone and a potentiation to combined D1 and D2 against treatment. In a second experiment, in animals receiving 1 mg/kg SKF-38393 either alone or in combination with 1 mg/kg quinpirole, the level of zif268 mRNA was measured with a double-labeling method in striatal neurons containing enkephalin mRNA, a marker of D2-containing neurons, and in neurons not containing enkephalin, putative D1- containing neurons. In the dopamine-depleted striatum, D1 agonist treatment alone did not affect enkephalin-positive neurons but significantly elevated zif268 mRNA levels in nearly all enkephalin- negative neurons. Combined D1 and D2 agonist treatment further increased zif268 mRNA levels in this population of enkephalin-negative neurons and decreased zif-268 mRNA levels in enkephalin-positive neurons. These data indicate that the synergistic response to combined D1- and D2-receptor stimulation is mediated by interneuronal interactions involving the activation of D1 and D2 receptors on separate populations of striatal neurons.

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Crossref · 10.1523/jneurosci.15-12-08167.1995

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Authors
Gerfen, C., Keefe, K., & Gauda, E.
Affiliations
National Institutes of Health (US)
Venue
The Journal of Neuroscience
Published
1995-12-01
Volume
15
Issue
12
Pages
8167-8176
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2097919380
Cited by
283
References
35
Citations by year
2025: 1 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 4 · 2019: 1 · 2018: 4 · 2017: 3 · 2016: 12 · 2015: 11 · 2014: 6 · 2013: 6 · 2012: 11
FWCI
5.20
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
dopamine D1 receptor, dopamine D2 receptor, striatum, immediate early genes, Zif268, c-fos, enkephalin, nigrostriatal dopamine pathway, SKF 38393, quinpirole, receptor coactivation
MeSH terms
Animals, Corpus Striatum, DNA-Binding Proteins, Dose-Response Relationship, Drug, Male, Neurons, RNA, Messenger, Transcription Factors, Gene Expression, Genes, fos, Rats, Sprague-Dawley, Receptors, Dopamine D1, Receptors, Dopamine D2, Genes, Immediate-Early, Immediate-Early Proteins, Dopamine Agonists, Rats, Early Growth Response Protein 1

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