Abstract
The current study explored the feasibility and efficacy of co-transfection of the human nerve growth factor (NGF) and vascular endothelial growth factor 165 (VEGF165) genes in rat bone marrow mesenchymal stem cells (BMSCs). The obtained hNGF and vascular endothelial growth factor (VEGF) cDNAs were cloned into the pEGFP-C1 expression vector to construct the recombinant vectors. Co-transfection in rat BMSCs was performed and the expressions of both genes were detected by RT-PCR, Western blot, and enzyme-linked immunospecific assay. The biological activity of recombinant NGF and VEGF proteins was confirmed using the Chick Chorioallantoic Membrane (CAM) assay. NGF and VEGF genes could be expressed successfully in rat BMSCs. The recombinant NGF and VEGF from the rat BMSCs showed a more significant synergetic biological activity compared with single recombinant NGF or VEGF. These findings demonstrate that the co-transfection of hNGF + VEGF genes can enhance the angiogenic effect in vivo.
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