Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 507

The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Subunit Composition of Functional Nicotinic Receptors in Dopaminergic Neurons Investigated with Knock-Out Mice

Open access
Champtiaux, Nicolas, Gotti, Cecilia, Cordero-Erausquin, Matilde, David, Denis J., Przybylski, Cédric, Léna, Clément, Clementi, Francesco, Moretti, Milena, Rossi, Francesco M., Le Novère, Nicolas, McIntosh, J. Michael, Gardier, Alain M., Changeux, Jean-Pierre·2003·The Journal of Neuroscience

Abstract

Nicotinic acetylcholine receptors (nAChRs) expressed by dopaminergic (DA) neurons have long been considered as potential therapeutic targets for the treatment of several neuropsychiatric diseases, including nicotine and cocaine addiction or Parkinson's disease. However, DA neurons express mRNAs coding for most, if not all, neuronal nAChR subunits, and the subunit composition of functional nAChRs has been difficult to establish. Immunoprecipitation experiments performed on mouse striatal extracts allowed us to identify three main types of heteromeric nAChRs (α4β2*, α6β2*, and α4α6β2*) in DA terminal fields. The functional relevance of these subtypes was then examined by studying nicotine-induced DA release in striatal synaptosomes and recording ACh-elicited currents in DA neurons fromα4, α6, α4α6, and β2 knock-out mice. Our results establish that α6β2*nAChRs are functional and sensitive to α-conotoxin MII inhibition. These receptors are mainly located on DA terminals and consistently do not contribute to DA release induced by systemic nicotine administration, as evidenced by in vivo microdialysis. In contrast, (nonα6)α4β2*nAChRs represent the majority of functional heteromeric nAChRs on DA neuronal soma. Thus, whereas a combination of α6β2*and α4β2*nAChRs may mediate the endogenous cholinergic modulation of DA release at the terminal level, somato-dendritic (nonα6)α4β2*nAChRs most likely contribute to nicotine reinforcement.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.23-21-07820.2003

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 45 references

Cited by

See all 507

Metadata

Authors
Champtiaux, N., Gotti, C., Cordero-Erausquin, M., David, D. J., Przybylski, C., Léna, C., Clementi, F., Moretti, M., Rossi, F. M., Le Novère, N., McIntosh, J. M., Gardier, A. M., & Changeux, J.-P.
Venue
The Journal of Neuroscience
Published
2003-08-27
Volume
23
Issue
21
Pages
7820-7829
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2097682864
Cited by
507
References
45
FWCI
10.51
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Subunit Composition of Functional Nicotinic Receptors in Dopaminergic Neurons Investigated with Knock-Out Mice. https://app.cochat.ai/papers/10.1523/jneurosci.23-21-07820.2003
The paper
Champtiaux, N., Gotti, C., Cordero-Erausquin, M., David, D. J., Przybylski, C., Léna, C., Clementi, F., Moretti, M., Rossi, F. M., Le Novère, N., McIntosh, J. M., Gardier, A. M., & Changeux, J.-P. (2003). Subunit Composition of Functional Nicotinic Receptors in Dopaminergic Neurons Investigated with Knock-Out Mice. The Journal of Neuroscience. https://doi.org/10.1523/jneurosci.23-21-07820.2003

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.