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Isolation and Characterization of Cardiac Mesenchymal Stromal Cells from Endomyocardial Bioptic Samples of Arrhythmogenic Cardiomyopathy Patients
09:16

Isolation and Characterization of Cardiac Mesenchymal Stromal Cells from Endomyocardial Bioptic Samples of Arrhythmogenic Cardiomyopathy Patients

Published on: February 28, 2018

Mobilisation of mesenchymal cells in cardiac patients: is intense exercise necessary?

A Lucia1, A De La Rosa, M Avila Silván

  • 1Universidad Europea deMadrid, Spain. alejandro.lucia@uem.es

British Journal of Sports Medicine
|April 11, 2008
PubMed

Insights

Intense exercise, particularly near myocardial ischemia, significantly increases circulating mesenchymal cells (cMCs). This finding suggests high-intensity physical activity may stimulate these cells for tissue repair.

Area of Science:

  • Cardiovascular Medicine
  • Regenerative Medicine
  • Exercise Physiology

Background:

  • Circulating mesenchymal cells (cMCs) show potential for damaged tissue regeneration, including ischemic myocardium.
  • Understanding factors that mobilize cMCs is crucial for regenerative therapies.

Purpose of the Study:

  • To investigate the effect of dynamic exercise intensity on circulating mesenchymal cell (cMC) levels in patients with stable coronary artery disease.
  • To determine if exercise-induced myocardial ischemia influences cMC mobilization.

Main Methods:

  • Assessed cMCs in patients (53-76 years) with stable coronary artery disease before and after exercise.
  • Compared moderate-intensity exercise (< respiratory compensation threshold) versus high-intensity exercise (>RCT).
  • Monitored for signs of myocardial ischemia and ventricular extrasystoles during exercise.

Main Results:

  • High-intensity exercise significantly increased cMC levels (p = 0.009).
  • This increase occurred in patients experiencing signs of myocardial ischemia or ventricular extrasystoles.
  • Moderate-intensity exercise did not induce a significant change in cMCs.

Conclusions:

  • Intense dynamic exercise, especially when approaching myocardial ischemia, is a potent stimulus for mobilizing circulating mesenchymal cells.
  • These findings support the hypothesis that exercise-induced ischemia may enhance cMC availability for potential tissue repair mechanisms.

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