Evidence map›Paper›PMID 27612857›Full record

ArticleBrain structure & function2017

Neurochemical evidence supporting dopamine D1-D2 receptor heteromers in the striatum of the long-tailed macaque: changes following dopaminergic manipulation.

Alberto J Rico, Iria G Dopeso-Reyes, Eva Martínez-Pinilla, Diego Sucunza, Diego Pignataro, Elvira Roda, David Marín-Ramos, José L Labandeira-García, Susan R George, Rafael Franco and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Brain structure & function, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 67 citations in OpenAlex.

  1. The Signaling and Pharmacology of the Dopamine D1 Receptor.Frontiers in cellular neuroscience · 2021
    Pooled it
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  8. G Protein-Coupled Receptor Dimerization-What Next?International journal of molecular sciences · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Alberto J RicoDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
Iria G Dopeso-ReyesDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
Eva Martínez-PinillaDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
Diego SucunzaDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
Diego PignataroDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
Elvira RodaDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
David Marín-RamosDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain.
José L Labandeira-GarcíaCentro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
Susan R GeorgeCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Departments of Medicine and Pharmacology, University of Toronto, Toronto, ON, Canada.
Rafael FrancoCentro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
José L LanciegoDepartment of Neurosciences, Center for Applied Medical Research (CIMA), University of Navarra, Pio XII Avenue 55, 31008, Pamplona, Spain. jlanciego@unav.es.
Biomedical Research Networking Center on Neurodegenerative Diseases · ESUniversidad de Navarra · ESCentre for Addiction and Mental Health · CAUniversitat de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although it has long been widely accepted that dopamine receptor types D1 and D2 form GPCR heteromers in the striatum, the presence of D1-D2 receptor heteromers has been recently challenged. In an attempt to properly characterize D1-D2 receptor heteromers, here we have used the in situ proximity ligation assay (PLA) in striatal sections comprising the caudate nucleus, the putamen and the core and shell territories of the nucleus accumbens. Experiments were carried out in control macaques as well as in MPTP-treated animals (with and without dyskinesia). Obtained data support the presence of D1-D2 receptor heteromers within all the striatal subdivisions, with the highest abundance in the accumbens shell. Dopamine depletion by MPTP resulted in an increase of D1-D2 density in caudate and putamen which was normalized by levodopa treatment. Two different sizes of heteromers were consistently found, thus suggesting that besides individual heteromers, D1-D2 receptor heteromers are sometimes organized in macromolecular complexes made of a number of D1-D2 heteromers. Furthermore, the PLA technique was combined with different neuronal markers to properly characterize the identities of striatal neurons expressing D1-D2 heteromers. We have found that striatal projection neurons giving rise to either the direct or the indirect basal ganglia pathways expressed D1-D2 heteromers. Interestingly, macromolecular complexes of D1-D2 heteromers were only found within cholinergic interneurons. In summary, here we provide overwhelming proof that D1 and D2 receptors form heteromeric complexes in the macaque striatum, thus representing a very appealing target for a number of brain diseases involving dopamine dysfunction.

Indexed as

AnimalsCaudate NucleusCorpus StriatumDopamineMacaca fascicularisMaleNucleus AccumbensParkinsonian DisordersPutamenReceptors, Dopamine D1Receptors, Dopamine D2DopamineReceptors, Dopamine D1Receptors, Dopamine D2Basal gangliaCaudate nucleusDyskinesiaMPTPPutamen

Identifiers

PMID27612857
PMCPMC5406426
OpenAlexW2514230953

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.