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Related Experiment Videos

[Cytokines in heart failure].

António Ferreira1

  • 1Unidade de Investigação e Desenvolvimento Cardiovascular do Porto, Faculdade de Medicina, Hospital de S. João, Porto, Portugal. pbettefer@esoterica.pt

Revista Portuguesa De Cardiologia : Orgao Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology
|June 30, 2004
PubMed
Summary

Cytokines contribute to heart failure progression by causing cardiac dysfunction and self-amplifying their production. Current anti-cytokine therapies have not proven effective in heart failure patients.

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Area of Science:

  • Cardiovascular Biology
  • Immunology
  • Molecular Medicine

Context:

  • Cytokines are key mediators in the heart and periphery during conditions like ischemia, left ventricular (LV) overload, and endotoxemia.
  • These inflammatory molecules trigger cardiac dysfunction, including LV enlargement, reduced systolic function, and apoptosis.

Purpose:

  • To review the molecular mechanisms underlying cytokine synthesis and their actions in the heart.
  • To elucidate how cytokines contribute to the pathogenesis and progression of heart failure (HF).

Summary:

  • Cytokines, upon binding to cell membrane receptors, induce cardiac dysfunction directly or via nitric oxide and sphingosine pathways.
  • A positive feedback loop allows cytokines to enhance their own synthesis, perpetuating their detrimental effects and driving HF progression.

Related Experiment Videos

  • Despite established links to HF, anti-cytokine therapies have shown limited efficacy in clinical trials.

    • Impact:

    • Provides a comprehensive review of cytokine involvement in heart failure pathogenesis.
    • Highlights the complex molecular pathways contributing to cardiac dysfunction and HF progression.
    • Underscores the challenges and potential future directions for anti-cytokine therapies in managing heart failure.