中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (23): 3727-3721.doi: 10.3969/j.issn.2095-4344.2014.23.020

• 干细胞因子及调控因子 stem cell factors and regulatory factors • 上一篇    下一篇

碱性成纤维细胞生长因子重组腺病毒转染兔骨髓间充质干细胞的表型变化

蔡弢艺1,陈雄生2,贾连顺2,孙延卿1,林 斌1,陈长青2   

  1. 1解放军第175医院骨科医院,福建省漳州市 363000;2解放军第二军医大学附属长征医院骨科,上海市 200003
  • 修回日期:2014-03-12 出版日期:2014-06-04 发布日期:2014-06-04
  • 通讯作者: 陈雄生,博士,教授,解放军第二军医大学附属长征医院骨科,上海市 200003
  • 作者简介:蔡弢艺,男,1980年生,福建省漳州市人,汉族,2012年解放军第二军医大学毕业,硕士,主要从事脊柱外科的研究。
  • 基金资助:

    国家高技术研究发展计划(863计划)资助项目(2008AA02Z418)

Rabbit bone marrow mesenchymal stem cells transfected with recombinant adenovirus vectors carrying basic fibroblast growth factor: variation of cell phenotypes

Cai Tao-yi1, Chen Xiong-sheng2, Jia Lian-shun2, Sun Yan-qing1, Lin Bin1, Chen Chang-qing2   

  1. 1Orthopedics Hospital, the 175th Hospital of Chinese PLA, Zhangzhou 363000, Fujian Province, China; 2Department of Orthopedics, Changzheng Hospital of Second Military Medical University, Shanghai 200003, China
  • Revised:2014-03-12 Online:2014-06-04 Published:2014-06-04
  • Contact: Chen Xiong-sheng, M.D., Professor, Department of Orthopedics, Changzheng Hospital of Second Military Medical University, Shanghai 200003, China
  • About author:Cai Tao-yi, Master, Orthopedics Hospital, the 175th Hospital of Chinese PLA, Zhangzhou 363000, Fujian Province, China
  • Supported by:

    the National High-Technology Research and Development Plan of China (863 Program), No. 2008AA02Z418

摘要:

背景:外源性碱性成纤维细胞生长因子在韧带组织的愈合过程中发挥着重要作用,采用转基因方法将外源性基因转入细胞内能促进碱性成纤维细胞生长因子分泌。

目的:观察碱性成纤维细胞生长因子重组腺病毒载体转染兔骨髓间充质干细胞后表型变化及碱性成纤维细胞生长因子蛋白的表达。
方法:取P2代骨髓间充质干细胞,分为3组,正常培养组为对照组,其他2组分别转染重组腺病毒(Ad.bFGF-eGFP)及空病毒(Ad.eGFP)。相差显微镜观察各组细胞形态变化,MTT法测定细胞增殖曲线,ELISA法分析各组细胞上清液中碱性成纤维细胞生长因子蛋白质量浓度。

结果与结论:转染后细胞呈现均一的成纤维细胞表型;碱性成纤维细胞生长因子重组腺病毒组细胞增殖活性高于空病毒组及对照组;ELISA结果提示碱性成纤维细胞生长因子重组腺病毒组在7 d内上清液中碱性成纤维细胞生长因子蛋白质量浓度较空病毒组及对照组增加,差异有显著性意义(P < 0.05)。提示碱性成纤维细胞生长因子重组腺病毒转染骨髓间充质干细胞可促进其向成纤维细胞分化,增加增殖活力,促进其碱性成纤维细胞生长因子蛋白的表达。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

关键词: 干细胞, 骨髓干细胞, 碱性成纤维细胞生长因子, 骨髓间充质干细胞, 成纤维细胞, 腺病毒, 转染, 863项目

Abstract:

BACKGROUND: Exogenous basic fibroblast growth factor (bFGF) plays an important role in the ligament tissue healing process, and the use of transgenic methods to transfect exogenous genes into cells can promote the secretion of bFGF.

OBJECTIVE: To observe phenotypic changes and the bFGF protein expression after bFGF recombinant adenovirus was used to transfect rabbit bone marrow mesenchymal stem cells (BMSCs).
METHODS: Passage 2 BMSCs were divided into three groups: Ad.bFGF-eGFP group, Ad.eGFP group and control group. Under a phase contrast microscope we observed the changes in cell morphology. The expression of bFGF protein in BMSCs was determined by enzyme-linked immunosorbent assay (ELISA). The proliferative curve was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT).
RESULTS AND CONCLUSION: The transfected cells showed a uniform phenotype of fibroblasts. MTT colorimetric assay revealed that more proliferative activity of transfected BMSCs was shown in the Ad.bFGF-eGFP group than in the Ad.eGFP group and control group. ELISA results showed that expression of bFGF protein was higher in the Ad.bFGF-eGFP group than in the Ad.eGFP group and control group (P < 0.05). BFGF recombinant adenovirus can induce the differentiation of BMSCs into fibroblasts, increase proliferative ability and promote the expression of bFGF protein.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words:  stem cells, mesenchymal stem cells, fibroblast growth factors, enzyme-linked immunosorbent assay, transfection

中图分类号: