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Updated: Jul 15, 2026
Cell-based Therapy for Heart Failure in Rat: Double Thoracotomy for Myocardial Infarction and Epicardial Implantation of Cells and Biomatrix
Published on: September 22, 2014
Advances in cell-based therapy for structural heart disease
Ramesh Mazhari1, Joshua M Hare
1Department of Medicine, Division of Cardiology and Interdisciplinary Stem Cell Institute, Leonard M Miller School of Medicine, Miami, FL 33136, USA. jhare@med.miami.edu
Insights
Cell-based therapies show promise for regenerating heart tissue damaged by heart failure and coronary artery disease. Research indicates improved cardiac function and myocardial regeneration, challenging old views on heart cell longevity.
Area of Science:
- Cardiovascular Science
- Regenerative Medicine
- Stem Cell Biology
Background:
- Congestive heart failure and coronary artery disease are leading causes of death in the US.
- Traditional views held that cardiac myocytes are terminally differentiated and have lifelong longevity.
- Recent advances suggest the possibility of regenerating damaged human organs, including the heart.
Purpose of the Study:
- To review the growing evidence for cell-based myocardial regeneration.
- To discuss the implications of these findings for cardiovascular science.
- To explore the therapeutic potential of endogenous stem cells.
Main Methods:
- Review of pre-clinical and clinical studies on cell-based myocardial regeneration.
- Analysis of data on the safety and efficacy of various cell types.
- Investigation into the mechanisms of cardiac repair and stem cell plasticity.
Main Results:
- Consistent evidence for improved cardiac function and myocardial regeneration across different cell types.
- Demonstrated safety and efficacy of cell-based therapies in pre-clinical and clinical settings.
- Emerging understanding of adult organ stem cells' plasticity and regenerative capacity.
Conclusions:
- Cell-based myocardial regeneration offers a promising therapeutic strategy for heart disease.
- These findings necessitate a re-evaluation of the paradigm of cardiac myocyte terminal differentiation.
- Endogenous adult stem cells represent a potential therapeutic target or agent for cardiac repair.
Abstract:
Congestive heart failure and coronary artery disease are the leading causes of morbidity and mortality in the United States despite substantial therapeutic advances in the last half century. Only very recently have studies arisen that support possibility of regenerating tissue of damaged human organs including the heart. In this regard, there is growing pre-clinical and clinical evidence demonstrating the safety and efficacy of cell-based myocardial regeneration using a variety of cell lines. Although the data on the exact mechanism of action and the fate of the administered cells is controversial, there is consistent evidence for improved cardiac function and myocardial regeneration using different cell types. This extraordinarily exciting scientific advance has forced cardiovascular scientists to re-evaluate the long-held paradigm of cardiac myocyte terminal differentiation and life-long longevity of the cardiac myocytes that comprise the heart. Whereas, these new ideas originated with attempts to perform cellular transplantation using exogenous stem or precursor cells, mechanistic insights have rapidly evolved to the realization that adult organs harbor stem cells with significant plasticity, capable of repopulating their respective organ. Indeed these cells may be harnessed as a therapeutic agent or may represent the target of regenerative therapeutic strategies.
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