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Updated: Jun 28, 2025

Measuring G-protein-coupled Receptor Signaling via Radio-labeled GTP Binding
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From "contraindicated" to "first line" - Current mechanistic insights beyond canonical β-receptor signaling

Theresa Brand1, Ann-Kathrin Lukannek1, Valérie Jahns1

  • 1Institute of Pharmacology and Toxicology, University of Würzburg, Germany.

Current Opinion in Pharmacology
|April 18, 2024
PubMed

Insights

Beta-blockers are crucial for cardiovascular disease treatment but their effectiveness and side effects are debated. This review explores receptor characteristics and molecular signaling for optimizing heart failure therapy, considering comorbidities.

Area of Science:

  • Pharmacology
  • Cardiology
  • Molecular Biology

Background:

  • Beta-blockers are a cornerstone in cardiovascular disease management.
  • Their efficacy and side effect profiles are subjects of ongoing discussion.
  • Only four beta-blocker compounds are currently approved for heart failure (HF) therapy.

Purpose of the Study:

  • To review key characteristics of beta-blockers influencing clinical outcomes in heart failure.
  • To discuss novel molecular signaling patterns and extra-cardiac effects.
  • To highlight considerations for optimizing HF therapy, including comorbidities.

Main Methods:

  • Literature review of existing and emerging research on beta-blockers.
  • Analysis of receptor-level properties such as subtype selectivity and agonistic properties.
  • Investigation of molecular signaling pathways and extra-cardiac effects.

Main Results:

  • Receptor characteristics like subtype selectivity and ancillary capacities significantly impact clinical outcomes.
  • Novel signaling patterns and extra-cardiac effects (inflammation, metabolism, oxidative stress) are increasingly recognized.
  • Divergent molecular actions necessitate a nuanced approach to beta-blocker selection.

Conclusions:

  • Understanding diverse beta-blocker properties is essential for effective heart failure treatment.
  • Extra-cardiac effects and comorbidities require careful consideration in therapeutic strategies.
  • Further research into molecular mechanisms can refine beta-blocker therapy for cardiovascular diseases.

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