HSV-1感染大鼠骨髓间充质干细胞及形成潜伏感染的初步研究  

Infection and Latency of HSV-1 on Rat Bone Marrow Mesenchymal Stem Cells in Vitro

作　　者：潘丽[1] 李晓眠[1] 李梅[1] 王卿[1] 

机构地区：[1]天津医科大学微生物教研室,天津300070

出　　处：《病毒学报》2008年第4期272-276,共5页Chinese Journal of Virology

摘　　要：在体外培养大鼠骨髓间充质干细胞(BMSCs),观察单纯疱疹病毒1型感染骨髓间充质干细胞情况。分离并鉴定BMSCs;HSV-1感染BMSCs,观察细胞病变(CPE);建立BMSCs的HSV-1潜伏感染模型。提取总DNA,PCR法扩增BMSCs内的HSV-1特异性片段,检测HSV-1感染BMSCs及潜伏感染。结果显示骨髓间充质干细胞经14d诱导后,碱性磷酸酶含量增高、形成钙结节,表现出成骨细胞特性。HSV-1感染BMSCs,出现典型的CPE,PCR法证实BMSCs内存在HSV-1的特异性片段。HSV-1潜伏感染的BMSCs,未出现明显的CPE,细胞传至7代,仍可测到HSV-1的基因片段,表明BMSCs有可能形成HSV-1的潜伏感染。大鼠骨髓间充质干细胞在体外可以向成骨细胞方向分化,可作为组织工程学的种子细胞。HSV-1可以在体外感染骨髓间充质干细胞并有形成潜伏感染的趋势。To culture bone marrow mesenchymal stem cells （BMSCs） of rat in vitro and observe HSV-1 infection on BMSCs, BMSCs were separated from the bone marrow and identified by alizarin red staining and detection of ALP. The morphology of HSV-1 infected BMSCs and the CPE were observed. The total DNA was extracted from HSV-1 infected BMSCs and the desired specific gene fragment of 477bp of HSV-1 was amplified by PCR. Results showed that after BMSCs were induced by mineral-fluid for 14 days, the ALP level was increased and the nodule calcification was formed. The induced BMSCs were manifested to have the characteristics of osteoblasts. CPE couldn＇t be found in HSV-1 latently infected BMSCs but the 477bp gene fragment was still detectable. HSV-1 could establish latent infection in BMSCs after 7 passages. This study indicated that rat BMSCs could be induced to differentiate into osteoblasts in vitro, therefore they can be used as the seed cells for the tissue engineering. HSV-1 can infect rat BMSCs and develop the latent infection in vitro.

关 键 词：单纯疱疹病毒1型 潜伏感染 骨髓间充质干细胞 大鼠 组织工程 器官移植 

分 类 号：R373.11[医药卫生—病原生物学]