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The aim of this study was to observe the effects of cluster of differentiation (CD) 151 on the expression of vascular endothelial growth factor (VEGF) in ischemic myocardium by the injection of a recombinant adeno-associated virus (rAAV) vector carrying the human CD151 gene. A rat acute myocardial infarction model was established, and rAAV-CD151 was injected into the ischemic myocardium. Four weeks later, the ischemic myocardium was removed in order to detect the expression of exogenous CD151 mRNA by reverse transcriptase polymerase chain reaction. In addition, the expression of CD151 and VEGF was detected by western blot analysis to evaluate the effect of CD151 overexpression on VEGF expression. Four weeks after injection of the vector, exogenous CD151 mRNA was expressed in the myocardial tissues of the CD151 group, whereas it was not detected in sham surgery, model control or rAAV-green fluorescent protein (GFP) gene-treated groups. The expression levels of CD151 protein were significantly higher in the CD151 group compared with those in the other three groups (P&lt;0.05). The VEGF expression level in the CD151 group was higher compared with those in the control and GFP groups (P&gt;0.05). These results indicate that rAAV-CD151 effectively transfects rat myocardial tissues, and may promote angiogenesis of the ischemic myocardium, improve left ventricular function and increase VEGF expression to improve ventricular function.

experimental and therapeutic medicine

Effects of recombinant adeno-associated virus-mediated CD151 gene transfer on the expression of rat vascular endothelial growth factor in ischemic myocardium