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Serotonin receptors and heart valve disease--it was meant 2B

Joshua D Hutcheson1, Vincent Setola, Bryan L Roth

  • 1Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.

Pharmacology & Therapeutics
|March 29, 2011
PubMed

Insights

Serotonin (5-HT) receptor 2B (5-HT2B) is implicated in carcinoid heart disease and drug-induced valvulopathy. Research links 5-HT2B receptor activation to heart valve fibrosis, guiding new therapeutic strategies.

Area of Science:

  • Pharmacology
  • Cardiology
  • Molecular Biology

Background:

  • Carcinoid heart disease involves valvular pathology linked to serotonin.
  • Ergot-derived medications and Fen-Phen were associated with heart valve issues.
  • The specific molecular target for serotonin-mediated valve disease was initially unknown.

Purpose of the Study:

  • To review the 5-HT2B receptor's molecular properties.
  • To discuss the identification of 5-HT2B as the mediator of heart valve disease.
  • To present efforts in identifying 5-HT2B activators and explore therapeutic potential.

Main Methods:

  • Review of existing literature on serotonin, ergot derivatives, and valvular pathologies.
  • Analysis of studies linking Fen-Phen to heart valve fibrosis.
  • Screening methodologies for 5-HT2B receptor activity.

Main Results:

  • Identification of the 5-HT2B receptor as the key mediator of serotonin-induced heart valve fibrosis.
  • Numerous activators of the 5-HT2B receptor have been identified.
  • Association of 5-HT2B receptor activity with various drug-induced valvulopathies.

Conclusions:

  • The 5-HT2B receptor is a critical target in understanding and treating valvular heart disease.
  • Targeting the 5-HT2B receptor offers potential therapeutic benefits.
  • Ongoing research focuses on identifying novel valvulopathogens through 5-HT2B screening.

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