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- W2076730304 abstract "This study was designed to compare the effectiveness of Sonic hedgehog (Shh) gene transfer, AMD3100-induced progenitor-cell mobilization, and Shh-AMD3100 combination therapy for treatment of surgically induced myocardial infarction (MI) in mice. Shh gene transfer improves myocardial recovery by up-regulating angiogenic genes and enhancing the incorporation of bone marrow–derived progenitor cells (BMPCs) in infarcted myocardium. Here, we investigated whether the effectiveness of Shh gene therapy could be improved with AMD3100-induced progenitor-cell mobilization. Gene expression and cell function were evaluated in cells cultured with medium collected from fibroblasts transfected with plasmids encoding human Shh (phShh). MI was induced in wild-type mice, in matrix metalloproteinase (MMP)-9 knockout mice, and in mice transplanted with bone marrow that expressed green-fluorescent protein. Mice were treated with 100 μg of phShh (administered intramyocardially), 5 mg/kg of AMD3100 (administered subcutaneously), or both; cardiac function was evaluated echocardiographically, and fibrosis, capillary density, and BMPC incorporation were evaluated immunohistochemically. phShh increased vascular endothelial growth factor and stromal cell–derived factor 1 expression in fibroblasts; the medium from phShh-transfected fibroblasts increased endothelial-cell migration and the migration, proliferation, and tube formation of BMPCs. Combination therapy enhanced cardiac functional recovery (i.e., left ventricular ejection fraction) in wild-type mice, but not in MMP-9 knockout mice, and was associated with less fibrosis, greater capillary density and smooth muscle–containing vessel density, and enhanced BMPC incorporation. Combination therapy consisting of intramyocardial Shh gene transfer and AMD3100-induced progenitor-cell mobilization improves cardiac functional recovery after MI and is superior to either individual treatment for promoting therapeutic neovascularization." @default.
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- W2076730304 date "2011-06-01" @default.
- W2076730304 modified "2023-10-14" @default.
- W2076730304 title "Sonic Hedgehog-Induced Functional Recovery After Myocardial Infarction Is Enhanced by AMD3100-Mediated Progenitor-Cell Mobilization" @default.
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- W2076730304 doi "https://doi.org/10.1016/j.jacc.2010.11.069" @default.
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