Cited by 410Nicotinic Acetylcholine Receptors StudyNeuroscience and Neuropharmacology ResearchSmoking Behavior and Cessation

Identification of the Nicotinic Receptor Subtypes Expressed on Dopaminergic Terminals in the Rat Striatum

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Zoli, Michele, Moretti, Milena, Zanardi, Alessio, McIntosh, J. Michael, Clementi, Francesco, Gotti, Cecilia·2002·The Journal of Neuroscience

Abstract

Neuronal nicotinic acetylcholine receptors (nAChRs) expressed on mesostriatal dopaminergic neurons are thought to mediate several behavioral effects of nicotine, including locomotion, habit learning, and reinforcement. Using immunoprecipitation and ligand-binding techniques, we have shown that both alpha6beta2* and alpha4(nonalpha6)beta2* nAChRs are expressed in the caudate-putamen and that only alpha6* nAChRs can bind alpha-conotoxin MII and methyllycaconitine with affinities of 1.3 and 40 nm, respectively. Further studies performed on 6-hydroxydopamine-lesioned striatum led to the identification of nAChR subtypes selectively expressed on dopaminergic terminals [alpha4alpha5beta2, alpha4alpha6beta2(beta3), and alpha6beta2(beta3)], nondopaminergic neuronal structures (alpha2alpha4beta2), or both structures (alpha4beta2). The identification of the nAChRs expressed on striatal dopaminergic terminals opens up the possibility of developing selective nAChR ligands active on dopaminergic systems and associated diseases, such as Parkinson's disease.

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Crossref · 10.1523/jneurosci.22-20-08785.2002

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  • DA neurons express heteromeric nAChRs containing α4, α5, α6, β2, and β3 subunits in various combinations, with predominant subtypes being α4/β2/α5 and α4/α6/β2/β3.

    “DA neurons express heteromeric nAChRs containing the α4, α5, α6, β2, and β3 subunits in various combinations, with the predominant subtypes being α4/β2/α5 and α4/α6/ β2/β3.”

    From Mechanisms of Nicotine Addiction (2021) · cites this paper as Zoli et al. 2002

    The section on striatal receptor populations identifies α4, α5, α6, β2, and β3 in receptors on dopaminergic terminals. But it estimates four major populations: α4β2 and α4β2α5 at about 30% each, α6β2(β3) at about 25%, and α4α6β2(β3) at about 15%. Thus it does not support calling α4β2α5 and α4α6β2β3 the two predominant subtypes; β3 is also shown as optional in the latter composition. Page numbers were not provided in the passages. (LLM, conf=0.90)

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Research works printed but not linked: 1

  1. Lindstrom J (2000) The structure of nAChRs. In: Neuronal nicotinic receptors, Handbook of experimental pharmacology, Vol 144 (Cle- menti F, Fornasari D, and Gotti C, eds), pp 101-162. Berlin: Springer.

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Authors
Zoli, M., Moretti, M., Zanardi, A., McIntosh, J. M., Clementi, F., & Gotti, C.
Affiliations
  • University of Milan (IT)
  • University of Modena and Reggio Emilia (IT)
  • University of Utah (US)
Venue
The Journal of Neuroscience
Published
2002-10-15
Volume
22
Issue
20
Pages
8785-8789
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2162000418
Cited by
407
References
28
Citations by year
2026: 3 · 2025: 12 · 2024: 3 · 2023: 5 · 2022: 7 · 2021: 11 · 2020: 10 · 2019: 13 · 2018: 15 · 2017: 9 · 2016: 16 · 2015: 13 · 2014: 16 · 2013: 10 · 2012: 14
FWCI
8.95
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH53631, R01MH053631, R29MH053631)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
Keywords
nicotinic acetylcholine receptors, dopaminergic terminals, striatum, caudate-putamen, alpha4beta2 nAChR, alpha-conotoxin MII, methyllycaconitine, nicotine, 6-hydroxydopamine lesion, Parkinson's disease
MeSH terms
Animals, Binding, Competitive, Corpus Striatum, Dopamine, Ligands, Male, Precipitin Tests, Receptors, Nicotinic, Specific Pathogen-Free Organisms, Oxidopamine, Rats, Sprague-Dawley, Presynaptic Terminals, Nicotinic Agonists, Nicotinic Antagonists, Dopamine Uptake Inhibitors, Protein Subunits, Rats

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