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Stretch-activated pathways and left ventricular remodeling.

Thomas Force1, Ashour Michael, Heiko Kilter

  • 1Molecular Cardiology Research Institute, New England Medical Center, Boston, MA 02111, USA.

Journal of Cardiac Failure
|January 30, 2003
PubMed
Summary
This summary is machine-generated.

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Cardiomyocyte stretch after heart attack activates cellular pathways. These pathways initiate ventricular dilation and heart failure, offering potential targets for new treatments.

Area of Science:

  • Cardiovascular Biology
  • Cellular Mechanotransduction
  • Heart Failure Pathogenesis

Background:

  • Myocardial infarction (MI) causes cardiomyocyte stretch in surviving heart muscle.
  • This stretch activates cellular signaling pathways, initiating compensatory responses.
  • Understanding these pathways is crucial for addressing heart failure development post-MI.

Purpose of the Study:

  • To review cellular signaling pathways activated by cardiomyocyte stretch.
  • To explore the role of stretch sensors in converting mechanical stimuli to molecular signals.
  • To introduce stretch-activated signaling in the context of ventricular remodeling and heart failure.

Main Methods:

  • Review of existing literature on cell stretch and cardiac signaling.

Related Experiment Videos

  • Discussion of identified cellular pathways and their involvement in myocardial remodeling.
  • Examination of molecular modulators for potential therapeutic intervention.

    • Main Results:

    • Cell stretch following MI triggers numerous signal transduction pathways.
    • These pathways are involved in the initial steps of ventricular dilatation and remodeling.
    • Specific stretch sensors and downstream signaling cascades are implicated.

    Conclusions:

    • Stretch-activated signaling is a key initiator of ventricular remodeling post-MI.
    • Identifying molecular targets within these pathways may lead to novel heart failure therapies.
    • Further research into stretch sensors and signaling pathways is warranted.