Objective:To investigate the effect of transplantation of CXC receptor 4(CXCR4)gene-modified bone marrow mesenchymal stem cells(BMSCs)on reendothelialization after carotid balloon angioplasty in rats.Method:BMSCs were collected through density gradient centrifugation and adherent culture.BMSCs were transfected with lentivirus vector carrying CXCR4 gene to generate CXCR4gene-modified BMSCs(CXCR4-BMSCs).BMSCs activity was analyzed by MTT after transfection.Rats were prepared for carotid artery atherosclerotic...