Calcitonin gene related peptide modified mesenchymal stem cells reduce restenosis after carotid balloon injury in rats  

作　　者：PANKE CHEN SHUAI MA 

机构地区：[1]Department of Cardiology,Affiliated Hospital of Zunyi Medical University,Zunyi,563003,China

出　　处：《BIOCELL》2022年第8期1903-1909,共7页生物细胞（英文）

基　　金：This work was supported by the Technology Fund of Guizhou Province(Qian ke he LH zi[2014]7576).

摘　　要：This work aimed to investigate the effects of calcitonin gene-related peptide(CGRP)-modified mesenchymal stem cells(MSCs)on vascular stenosis in carotid balloon-injured rats.The CGRP gene labeled with EGFP was transfected into bone marrow MSCs,and CGRP protein expression in MSCs was confirmed by immunofluorescence assays.A rat carotid balloon injury model was established using a surgicalmethod.CGRP-modifiedMSCs were orthotopically transplanted into the injured area of the rats.At 28 days after cell transplantation,EGFP and CD31 expression was detected by immunofluorescence staining.Hematoxylin-eosin(H&E)staining was used to detect the intima/media area of the injured carotid artery stenosis site,and the expression of proliferating cell nuclear antigen(PCNA)was detected by immunohistochemistry.MSCs from rat bone marrow positively expressed CD29 and negatively expressed CD45.In vivo immunofluorescence staining showed that EGFP expression was significantly increased at the vascular injury site of rats transplanted with MSC_CGRP compared with the control group on the 28th day after cell transplantation and that the damaged vessels exhibited continuous CD31 expression.H&E staining showed that the vascular intimal proliferation area of rats transplanted with MSC_CGRP was significantly reduced compared with that of other groups.Furthermore,the immunohistochemistry results showed that PCNA expression in the endothelium of the MSC_CGRP group was lower than that of the other groups.Therefore,MSCs transfected with the CGRP gene can express the CGRP protein,and the implantation of CGRPmodified MSCs at the damaged site after carotid balloon-induced injury can reduce the neointimal area.

关 键 词：Mesenchymal stem cells Calcitonin gene-related peptide Lentiviral transfection Cell transplantation RESTENOSIS 

分 类 号：R73[医药卫生—肿瘤]