Evidence map›Paper›PMID 21645528›Full record

ArticleNeuropharmacology2011

Functional crosstalk and heteromerization of serotonin 5-HT2A and dopamine D2 receptors.

Laura Albizu, Terrell Holloway, Javier González-Maeso, Stuart C Sealfon

Abstract readComparative Study
In one paragraph

Article in Neuropharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

60 citing papers in PubMed, 109 citations in OpenAlex.

  1. Trial
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  4. GPCR heteromers: Beyond the monomeric paradigm in neuropsychiatric drug discovery.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  5. Article
  6. The working lives of neuronal 5-HTRSC chemical biology · 2026
    Review
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  14. ExploringFrontiers in fungal biology · 2023
    Article
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  18. Article
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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

4 authors at 1 institution in 1 country.

Laura AlbizuDepartment of Neurology, Mount Sinai School of Medicine, New York, NY 10029, USA.
Terrell Holloway
Javier González-Maeso
Stuart C Sealfon
Icahn School of Medicine at Mount Sinai · US

Funding

HALLUCINOGENS IN SPECIFIC SIGNALING AND CIRCUITRYP01DA012923 · NIDA · WEILL MEDICAL COLL OF CORNELL UNIV · PI GINGRICH, JAY A · 2000 to 2011
$8.6M
Structure and function of the 5HT2A/mGluR2 complex in schizophreniaR01MH084894 · NIMH · VIRGINIA COMMONWEALTH UNIVERSITY · PI Javier Gonzalez-Maeso · 2009 to 2026
$6.8M
NIDA NIH HHS P01 DA012923NIMH NIH HHS R01 MH084894
6 · The paper itself

Abstract

The serotonin 5-HT(2A) receptor (5-HT(2A)R) and dopamine D(2) receptor (D(2)R) are high-affinity G protein-coupled receptor targets for two different classes of antipsychotic drugs used to treat schizophrenia. Interestingly, the antipsychotic effects are not based on the regulation of same signaling mediators since activation of the 5-HT(2A)R and of the D(2)R regulate G(q/11) protein and G(i/o) protein, respectively. Here we use radioligand binding and second messenger production assays to provide evidence for a functional crosstalk between 5-HT(2A)R and D(2)R in brain and in HEK293 cells. D(2)R activation increases the hallucinogenic agonist affinity for 5-HT(2A)R and decreases the 5-HT(2A)R induced inositol phosphate production. In vivo, 5-HT(2A)R expression is necessary for the full effects of D(2)R antagonist on MK-801-induced locomotor activity. Co-immunoprecipitation studies show that the two receptors can physically interact in HEK293 cells and raise the possibility that a receptor heterocomplex mediates the crosstalk observed. The existence of this 5-HT(2A)R-D(2)R heteromer and crosstalk may have implications for diseases involving alterations of serotonin and dopamine systems and for the development of new classes of therapeutic drugs.

Indexed as

AnimalsCells, CulturedDopamine AntagonistsDopamine D2 Receptor AntagonistsHEK293 CellsHumansMaleMiceMice, 129 StrainMice, KnockoutProtein MultimerizationReceptor Cross-TalkReceptors, Dopamine D2Receptor, Serotonin, 5-HT2ASerotonin 5-HT2 Receptor AgonistsDopamine AntagonistsDopamine D2 Receptor AntagonistsReceptors, Dopamine D2Receptor, Serotonin, 5-HT2ASerotonin 5-HT2 Receptor Agonists

Identifiers

PMID21645528
PMCPMC3556730
OpenAlexW2075364609

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.