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Comparison of Cell Therapy and Cytokine Therapy for Functional Repair in Ischemic and Nonischemic Heart Failure

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Although cell therapy shows great promise as a new therapeutic strategy for heart failure, its precise mechanisms remain unclear. Furthermore, the advantages of cell therapy over conventional cytokine therapy have yet to be clarified. This study was designed to compare the functional improvement achieved by cell therapy and cytokine therapy in both ischemic and nonischemic heart failure experimental models. Ischemic heart failure was induced by ligating the left anterior descending artery, and nonischemic heart failure was induced by an IP injection of doxorubicin, respectively, in mice. After establishing the heart failure models, mice were randomly given a single intramyocardial injection of 2 × 105 c-kit-positive bone marrow stem cells (cell therapy), hepatic growth factor (cytokine therapy), or PBS injection only (control). In the ischemic heart failure model, both cell therapy and cytokine therapy increased the vessel density significantly, inhibited apoptosis of myocytes, and decreased the fibrotic area in the ischemic myocardium, which resulted in a significant increase in the survival rate and enhancement of the cardiac function of these mice (p < 0.05 vs. control therapy). In the nonischemic heart failure model, significant increases in the survival rate and cardiac function were achieved by cell therapy (p < 0.05 vs. control therapy), but not by cytokine therapy, although cytokine therapy inhibited the fibrosis and apoptosis of the cardiomyocytes. Both cell therapy and cytokine therapy are alternative treatments for ischemic heart failure. However, cell therapy is more effective for the treatment of nonischemic heart failure than cytokine therapy achieved by the administration of a single growth factor.
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Keywords: Angiogenesis; Cell therapy; Cytokine therapy; Heart failure; Ischemia

Document Type: Research Article

Affiliations: Department of Medical Bioregulation, Division of Cardiovascular Surgery and Medicine, Yamaguchi University School of Medicine, Ube, Yamaguchi 755-8505, Japan

Publication date: 2007-04-01

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  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.

    Cell Transplantation is now being published by SAGE. Please visit their website for the most recent issues.

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