Cited by 681Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchParkinson's Disease Mechanisms and Treatments

Dopamine uptake through the norepinephrine transporter in brain regions with low levels of the dopamine transporter: evidence from knock-out mouse lines

Open access
Morón, José A., Brockington, Alicia, Wise, Roy A., Rocha, Beatriz A., Hope, Bruce T.·2002·The Journal of Neuroscience

Abstract

Selective blockers of the norepinephrine transporter (NET) inhibit dopamine uptake in the prefrontal cortex. This suggests that dopamine in this region is normally cleared by the somewhat promiscuous NET. We have tested this hypothesis by comparing the effects of inhibitors selective for the three monoamine transporters with those of a nonspecific inhibitor, cocaine, on uptake of 3H-dopamine into synaptosomes from frontal cortex, caudate nucleus, and nucleus accumbens from wild-type, NET, and dopamine transporter (DAT) knock-out mice. Dopamine uptake was inhibited by cocaine and nisoxetine, but not by GBR12909, in frontal cortex synaptosomes from wild-type or DAT knock-out mice. At transporter-specific concentrations, nisoxetine and GBR12909 failed to block dopamine uptake into frontal cortex synaptosomes from NET knock-out mice. The efficacy of cocaine at the highest dose (1 mm) was normal in DAT knock-out mice but reduced by 70% in NET knock-out mice. Nisoxetine inhibited dopamine uptake by 20% in caudate and nucleus accumbens synaptosomes from wild-type and DAT knock-out mice but had no effect in those from NET knock-out mice. Cocaine failed to block dopamine uptake into caudate or nucleus accumbens synaptosomes from DAT knock-out mice. Cocaine and GBR12909 each inhibited dopamine uptake into caudate synaptosomes from NET knock-out mice, but cocaine effectiveness was reduced in the case of nucleus accumbens synaptosomes. Thus, whereas dopamine uptake in caudate and nucleus accumbens depends primarily on the DAT, dopamine uptake in frontal cortex depends primarily on the NET. These data underscore the fact that which transporter clears dopamine from a given region depends on both the affinities and the local densities of the transporters.

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.22-02-00389.2002

Cites

50 of 50 references verified0 citation errors · 0 not checkable

Statistics

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

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

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

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

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Morón, J. A., Brockington, A., Wise, R. A., Rocha, B. A., & Hope, B. T.
Affiliations
National Institutes of Health (US)
Venue
The Journal of Neuroscience
Published
2002-01-15
Volume
22
Issue
2
Pages
389-395
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1493305388
Cited by
681
References
50
Citations by year
2026: 15 · 2025: 15 · 2024: 36 · 2023: 16 · 2022: 22 · 2021: 18 · 2020: 26 · 2019: 20 · 2018: 29 · 2017: 20 · 2016: 30 · 2015: 30 · 2014: 35 · 2013: 36 · 2012: 26
FWCI
12.01
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • 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
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
dopamine uptake, norepinephrine transporter, dopamine transporter, cocaine, nisoxetine, GBR 12909, monoamine transporters, frontal cortex, caudate nucleus, nucleus accumbens, synaptosomes, dopamine clearance
MeSH terms
Animals, Brain, Brain Chemistry, Caudate Nucleus, Cocaine, Dopamine, Dose-Response Relationship, Drug, Fluoxetine, Frontal Lobe, Membrane Glycoproteins, Nerve Tissue Proteins, Norepinephrine, Nucleus Accumbens, Piperazines, Synaptosomes, Mice, Knockout, Dopamine Uptake Inhibitors, Membrane Transport Proteins, Symporters, Dopamine Plasma Membrane Transport Proteins, Norepinephrine Plasma Membrane Transport Proteins, Mice

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