Evidence map›Paper›PMID 25660762›Full record

ArticleACS chemical neuroscience2015

Identification of G protein-biased agonists that fail to recruit β-arrestin or promote internalization of the D1 dopamine receptor.

Jennie L Conroy, R Benjamin Free, David R Sibley

Open access · greenAbstract read
In one paragraph

Article in ACS chemical neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

  1. The Signaling and Pharmacology of the Dopamine D1 Receptor.Frontiers in cellular neuroscience · 2021
    Pooled it
  2. Article
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  5. Estimation of Dopamine DACS chemical neuroscience · 2025
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  6. Characterization of GαiScience · 2025
    Article
  7. Article
  8. Natural Product-Inspired Dopamine Receptor Ligands.Journal of medicinal chemistry · 2024
    Review
  9. Article
  10. Article
  11. The Role of Retinal Dopamine D1 Receptors in Ocular Growth and Myopia Development in Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Reversible Treatment of Pressure Overload-Induced Left Ventricular Hypertrophy throughAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Review
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

3 authors at 2 institutions in 1 country.

Jennie L ConroyMolecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-9405, United States.
R Benjamin FreeMolecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-9405, United States.
David R SibleyMolecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-9405, United States.
National Institutes of Health · USNational Institute of Neurological Disorders and Stroke · US

Funding

Molecular And Pharmacological Studies Of Dopamine ReceptorsZIANS002263 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI SIBLEY, DAVID · 2009 to 2025
$37.4M
Molecular &Pharmacological Studies Of Dopamine ReceptorZ01NS002263 · NINDS · NEUROLOGICAL DISORDERS AND STROKE · PI SIBLEY, DAVID R. · 1985 to 2008
$3.1M
Intramural NIH HHS Z01 NS002263
6 · The paper itself

Abstract

The D1 dopamine receptor (D1R) has been implicated in numerous neuropsychiatric disorders, and D1R-selective ligands have potential as therapeutic agents. Previous studies have identified substituted benzazepines as D1R-selective agonists, but the in vivo effects of these compounds have not correlated well with their in vitro pharmacological activities. A series of substituted benzazepines, and structurally dissimilar D1R-selective agonists, were tested for their functional effects on D1R-mediated cAMP accumulation, D1R-promoted β-arrestin recruitment, and D1R internalization using live cell functional assays. All compounds tested elicited an increase in the level of cAMP accumulation, albeit with a range of efficacies. However, when the compounds were evaluated for β-arrestin recruitment, a subset of substituted benzazepines, SKF83959, SKF38393, SKF82957, SKF77434, and SKF75670, failed to activate this pathway, whereas the others showed similar activation efficacies as seen with cAMP accumulation. When tested as antagonists, the five biased compounds all inhibited dopamine-stimulated β-arrestin recruitment. Further, D1R internalization assays revealed a corroborating pattern of activity in that the G protein-biased compounds failed to promote D1R internalization. Interestingly, the biased signaling was unique for the D1R, as the same compounds were agonists of the related D5 dopamine receptor (D5R), but revealed no signaling bias. We have identified a group of substituted benzazepine ligands that are agonists at D1R-mediated G protein signaling, but antagonists of D1R recruitment of β-arrestin, and also devoid of agonist-induced receptor endocytosis. These data may be useful for interpreting the contrasting effects of these compounds in vitro versus in vivo, and also for the understanding of pathway-selective signaling of the D1R.

Indexed as

AnimalsArrestinsBenzazepinesbeta-ArrestinsCell Line, TumorCell MembraneCHO CellsCricetulusCyclic AMPDopamine AgonistsDose-Response Relationship, DrugGTP-Binding ProteinsHEK293 CellsHumansMolecular StructureRadioligand AssayArrestinsBenzazepinesbeta-ArrestinsCyclic AMPDopamine AgonistsGTP-Binding ProteinsReceptors, Dopamine D1Receptors, Dopamine D5benzazepinebiased agonismD1 receptorDopaminefunctional selectivityG proteinβ-arrestin

Identifiers

PMID25660762
PMCPMC5234767
OpenAlexW2316073320

What OpenQuestion holds

Textmetadata
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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.