How Carvedilol activates β2-adrenoceptors

Tobias Benkel, Mirjam Zimmermann, Julian Zeiner, Sergi Bravo, Nicole Merten, Victor Jun Yu Lim, Edda Sofie Fabienne Matthees, Julia Drube, Elke Miess-Tanneberg, Daniela Malan, Martyna Szpakowska, Stefania Monteleone, Jak Grimes, Zsombor Koszegi, Yann Lanoiselée, Shannon O’Brien, Nikoleta Pavlaki, Nadine Dobberstein, Asuka Inoue, Viacheslav NikolaevDavide Calebiro, Andy Chevigné, Philipp Sasse, Stefan Schulz, Carsten Hoffmann, Peter Kolb, Maria Waldhoer, Katharina Simon, Jesus Gomeza, Evi Kostenis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Abstract

Carvedilol is among the most effective β-blockers for improving survival after myocardial infarction. Yet the mechanisms by which carvedilol achieves this superior clinical profile are still unclear. Beyond blockade of β1-adrenoceptors, arrestin-biased signalling via β2-adrenoceptors is a molecular mechanism proposed to explain the survival benefits. Here, we offer an alternative mechanism to rationalize carvedilol’s cellular signalling. Using primary and immortalized cells genome-edited by CRISPR/Cas9 to lack either G proteins or arrestins; and combining biological, biochemical, and signalling assays with molecular dynamics simulations, we demonstrate that G proteins drive all detectable carvedilol signalling through β2ARs. Because a clear understanding of how drugs act is imperative to data interpretation in basic and clinical research, to the stratification of clinical trials or to the monitoring of drug effects on the target pathway, the mechanistic insight gained here provides a foundation for the rational development of signalling prototypes that target the β-adrenoceptor system.

Original languageEnglish
Article number7109
Number of pages20
JournalNature Communications
Volume13
Issue number1
Early online date19 Nov 2022
DOIs
Publication statusPublished - Dec 2022

Bibliographical note

Funding Information:
We thank Ulrike Rick and Kimberly Harisch for excellent assistance. This study was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) 290847012/FOR2372 to E.K. and Heisenberg professorships KO4095/4-1 and KO4095/5-1 to P.K. T.B. was a member of the DFG-funded Research Training Group RTG1873 (214362475/GRK1873/2). A.C. and M.S. were supported by the Luxembourg National Research Fund (INTER/FWO “Nanokine” grant 15/10358798, INTER/FNRS grants 20/15084569, and PoC “Megakine” 19/14209621), F.R.S-FNRS-Télévie (7.8504.20). D.C. was supported by a Wellcome Trust Senior Research Fellowship (212313/Z/18/Z). This article is based upon work from COST Action ERNEST (CA18133), supported by COST (European Cooperation in Science and Technology, www.cost.eu ).

Publisher Copyright:
© 2022, The Author(s).

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry,Genetics and Molecular Biology
  • General
  • General Physics and Astronomy

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