Zheng Chao, Dai Min, Pan Zhimin, et al. Controllable HGF expression in bone marrow mesenchymal stem cells through baculovirus system[J]. Journal of Chongqing Medical University, 2014,38(5):641-645.
Zheng Chao, Dai Min, Pan Zhimin, et al. Controllable HGF expression in bone marrow mesenchymal stem cells through baculovirus system[J]. Journal of Chongqing Medical University, 2014,38(5):641-645.DOI:
Objective:To construct an efficient and controllable recombinant baoulovirus vAcrtTA2s-Ptight-HGF and to investigate the optimum dose of deoxycycline(DOX) for the induction of hepatocyte growth factor(HGF) expression in bone marrow mesenchymal stem cells(BM-MSCs) infected with vAcrtTA2s-Ptight-HGF. Methods:vAcrtTA2s-Ptight-HGF was built by gene recombination. BM-MSCs of New Zealand white rabbits were isolated and cultured by adhe-sion method and then were infected with vAcrtTA2s-Ptight-HGF. Concentration of HGF secreted by infected rabbit BM-MSCs was verified by ELISA and Western blot with different induction doses of DOX. Results:An efficient and controllable recombinant baoulovirus vAcrtTA2s-Ptight-HGF was successfully constructed by gene recombination and rabbit BM-MSCs was successfully infected. Different levels of HGF expression under different doses of DOX were quantitatively verified by ELISA and Western blot. Expression of HGF was in dose-dependent relationship with DOX doses and was consistently lasted for 7 d. Expression of HGF was higher in experiment group than in control group(P<0.001). Conclusions:BM-MSCs/vAcrtTA2s-Ptight-HGF demonstrates higher HGF expression and the optimum dose of DOX to induce HGF expression in infected rabbit BM-MSCs was 1 μg/ml.
关键词
骨髓间充质干细胞杆状病毒转染肝生长因子强力霉素调控表达
Keywords
bone marrow mesenchymal stem cellbaculovirustransfectionhepatocyte growth factordeoxycyclinecontrollable ex-pression