[Mobilization of stem cells in cardiovascular disease. Improvement of vascularization, cardiac function and...

Area of Science:

• Regenerative Medicine
• Exercise Physiology
• Hematology

Context:

• Stem cell therapy is evolving beyond autologous transplantation.
• Mobilizing endogenous stem cells via exercise is a promising area of research.
• Endothelial progenitor cells from bone marrow contribute to exercise-induced vascularization.

Purpose:

• To explore the mechanisms of stem cell mobilization through physical exercise.
• To investigate the role of cytokines, particularly G-CSF, in exercise-induced stem cell effects.
• To re-evaluate the therapeutic basis of bone marrow mobilization.

Summary:

• Exercise, especially endurance activities, stimulates the release of CD34-positive cells and modulates inflammatory cytokines.
• Granulocyte colony-stimulating factor (G-CSF) is identified as a key cytokine released during exercise.
• Emerging evidence suggests paracrine or direct G-CSF actions are primary therapeutic mechanisms, challenging the transdifferentiation hypothesis.

Impact:

• This research reframes the understanding of exercise-based regenerative strategies.
• Highlights the potential of G-CSF as a therapeutic target in exercise-mediated recovery.
• Provides a basis for developing novel interventions leveraging physical activity for therapeutic stem cell mobilization.