| 摘要 |
The present invention provides a novel method to isolate and expand pure progenitor/stem cells from a primary tissue explant, which produces a population enriched in multipotent functional progenitor/stem cells free of contaminating fibroblasts and other cell types. Cardiac progenitor/stem cells isolated by this method maintain their self-renewal and clonogenic character in vitro and differentiate into normal cells in myocardium, including cardiomyocytes, endothelial cells, and smooth muscle cells, after transplantation into ischemic hearts. The present invention also includes substantially pure populations of multipotent progenitor/stem cells, e.g., cardiac progenitor/stem cells, and their use to treat and prevent diseases and injuries, including those resulting from myocardial infarction.
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