Evidence map›Paper›PMID 22882301›Full record

ArticleACS chemical biology2012

Paroxetine is a direct inhibitor of g protein-coupled receptor kinase 2 and increases myocardial contractility.

David M Thal, Kristoff T Homan, Jun Chen, Emily K Wu, Patricia M Hinkle, Z Maggie Huang, J Kurt Chuprun, Jianliang Song, Erhe Gao, Joseph Y Cheung and 3 more

Abstract read
In one paragraph

Article in ACS chemical biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed
5.2field-weighted citation impact, top 3% 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

122 citing papers in PubMed, 202 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Pharmacological inhibition of G protein-coupled receptor kinase 2 (GRK2) by paroxetine attenuates acetaminophen-induced hepatotoxicity.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Drug Repositioning in Doxorubicin-Induced Cardiotoxicity Protection.International journal of molecular sciences · 2025
    Review
  13. Review
  14. Article
  15. Logic-based machine learning predicts how escitalopram attenuates cardiomyocyte hypertrophy.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  16. Article
  17. A New GRK2 Inhibitor for Heart Failure.JACC. Basic to translational science · 2025
    Article
  18. Article
  19. Review
  20. Article

62 more citing papers are in PubMed but not listed here.

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

13 authors at 4 institutions in 1 country.

David M ThalLife Sciences Institute and the Department of Pharmacology, University of Michigan, Ann Arbor, Michigan 48109, United States.
Kristoff T Homan
Jun Chen
Emily K Wu
Patricia M Hinkle
Z Maggie Huang
J Kurt Chuprun
Jianliang Song
Erhe Gao
Joseph Y Cheung
Larry A Sklar
Walter J Koch
John J G Tesmer
Temple University · USUniversity of Michigan–Ann Arbor · USUniversity of New Mexico · USUniversity of Rochester Medical Center · US

Funding

PUBLIC HEALTH DEMONSTRATIONP60DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MYERS, MARTIN G · 1985 to 2012
$26.5M
Regulation of Beta-Adrenergic Receptor Signaling by S-NitrosylationP01HL075443 · NHLBI · DUKE UNIVERSITY · PI STAMLER, JONATHAN S. · 2004 to 2019
$26.1M
Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Mehboob A Hussain · 2013 to 2026
$24.3M
Yeast Biology ConsortiumU54MH084690 · NIMH · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI TEGOS, GEORGE P · 2008 to 2013
$14.4M
Structure, function, and inhibition of G protein-coupled receptor kinasesR01HL071818 · NHLBI · UNIVERSITY OF TEXAS AUSTIN · PI TESMER, JOHN · 2004 to 2023
$7.1M
Targeting GRK2 in the HeartR01HL061690 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI KOCH, WALTER J. · 1998 to 2022
$4.2M
MODULATION OF RECEPTOR NUMBER IN CULTURED CELLSR01DK019974 · NIDDK · UNIVERSITY OF ROCHESTER · PI HINKLE, PATRICIA M. · 1986 to 2011
$4.1M
Targeting GRK2 (BARK1) in Heart FailureR37HL061690 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI KOCH, WALTER J. · 2009 to 2018
$3.9M
GRK and b-Arrestin Signaling in Cardiac RegenerationR01HL085503 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI KOCH, WALTER J. · 2007 to 2015
$3.0M
Structural Studies of Galphaq and Its Complexes at the Cell MembraneR01HL086865 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TESMER, JOHN · 2007 to 2015
$3.0M
Developing Quality Measures to Assess Pediatric Inpatient Respiratory CareR01HL088503 · NHLBI · SEATTLE CHILDREN'S HOSPITAL · PI MANGIONE-SMITH, RITA · 2009 to 2013
$2.7M
RNA Aptamer-Based Screen for Selective Inhibitors of GRK2R03DA030557 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TESMER, JOHN · 2010 to 2011
$76k
NHLBI NIH HHS HL071818NHLBI NIH HHS HL086865NHLBI NIH HHS P01 HL075443NHLBI NIH HHS R01 HL061690NHLBI NIH HHS R01 HL071818NHLBI NIH HHS R01 HL085503NHLBI NIH HHS R01 HL086865NHLBI NIH HHS R01 HL088503NHLBI NIH HHS R37 HL061690NIDA NIH HHS DA030557NIDA NIH HHS R03 DA030557NIDDK NIH HHS DK19974NIDDK NIH HHS DK20572NIDDK NIH HHS P30 DK020572NIDDK NIH HHS P60 DK020572NIDDK NIH HHS R01 DK019974NIMH NIH HHS U54 MH084690
6 · The paper itself

Abstract

G protein-coupled receptor kinase 2 (GRK2) is a well-established therapeutic target for the treatment of heart failure. Herein we identify the selective serotonin reuptake inhibitor (SSRI) paroxetine as a selective inhibitor of GRK2 activity both in vitro and in living cells. In the crystal structure of the GRK2·paroxetine-Gβγ complex, paroxetine binds in the active site of GRK2 and stabilizes the kinase domain in a novel conformation in which a unique regulatory loop forms part of the ligand binding site. Isolated cardiomyocytes show increased isoproterenol-induced shortening and contraction amplitude in the presence of paroxetine, and pretreatment of mice with paroxetine before isoproterenol significantly increases left ventricular inotropic reserve in vivo with no significant effect on heart rate. Neither is observed in the presence of the SSRI fluoxetine. Our structural and functional results validate a widely available drug as a selective chemical probe for GRK2 and represent a starting point for the rational design of more potent and specific GRK2 inhibitors.

Indexed as

AnimalsCatalytic DomainCells, CulturedG-Protein-Coupled Receptor Kinase 2HeartHumansMiceMice, Inbred C57BLModels, MolecularMyocardial ContractionMyocytes, CardiacParoxetinePhosphorylationProtein ConformationProtein Structure, TertiarySelective Serotonin Reuptake InhibitorsG-Protein-Coupled Receptor Kinase 2ParoxetineSelective Serotonin Reuptake InhibitorsThyrotropin-Releasing Hormone

Identifiers

PMID22882301
PMCPMC3500392
OpenAlexW2017096331

What OpenQuestion holds

Textmetadata
LicenceTDM
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.