" Before this , nobody had a way to transfect cells multiple times with protein-encoding rna , " says yanik .
yanik说道：“在这之前，没有人能够用蛋白质编码rna来大量地转染细胞。”
Objective using vascular endothelial growth factor ( vegf ) genes to transfect medullary mesenchymal stem cells , then to investigate the feasibility of medullary mesenchymal stem ceils directionally differentiating into vascular endotheliocytes .
