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Related Experiment Videos

Cytoplasmic signaling pathways that regulate cardiac hypertrophy.

J D Molkentin1, G W Dorn

  • 1Department of Pediatrics, Division of Molecular Cardiovascular Biology, Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio 45229-3039, USA. jeff.molkentin@chmcc.org

Annual Review of Physiology
|February 22, 2001
PubMed
Summary

Cardiac hypertrophy, an adaptive response, can lead to heart failure. This review explores the complex signaling pathways that regulate cardiomyocyte growth, highlighting their role in disease progression.

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Area of Science:

  • Cardiology
  • Molecular Biology
  • Cell Signaling

Background:

  • Cardiac hypertrophy is an adaptive response of cardiomyocytes to stress.
  • Sustained cardiac hypertrophy is a major risk factor for heart failure.

Purpose of the Study:

  • To review the current understanding of cardiomyocyte signal transduction.
  • To discuss the regulation of the hypertrophic response.

Main Methods:

  • Literature review of signaling pathways involved in cardiac hypertrophy.
  • Analysis of intracellular signaling cascades.

Main Results:

  • Multiple signaling pathways, including G proteins, GTPases (Ras, RhoA, Rac), MAPK cascades, and others, are involved in hypertrophic response.

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  • These pathways function in concert to regulate cardiomyocyte hypertrophy.

    • Conclusions:

    • Understanding these pathways is crucial for developing treatments for heart failure.
    • A coordinated action of multiple signaling pathways orchestrates cardiac hypertrophy.