中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (11): 1680-1686.doi: 10.3969/j.issn.2095-4344.2014.11.007

• 骨组织构建 bone tissue construction • 上一篇    下一篇

基因枪介导的骨形态发生蛋白2基因转染治疗陈旧性骨缺损

朱小萌1,王 翀1,宋兴华1,詹玉林2,李文举1   

  1. 1新疆医科大学第一附属医院骨肿瘤科,新疆维吾尔自治区乌鲁木齐市 830054;2上海交通大学附属上海市第六人民医院骨科,上海市  200033
  • 修回日期:2014-02-21 出版日期:2014-03-12 发布日期:2014-03-12
  • 通讯作者: 宋兴华,硕士研究生导师,主任,主任医师,新疆医科大学第一附属医院骨肿瘤科,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:朱小萌,男,1987年生,新疆维吾尔自治区吐鲁番市人,汉族,新疆医科大学在读硕士,主要从事骨病运动损伤与骨肿瘤方面的研究。
  • 基金资助:

    国家自然科学基金(81060144)

Particle gun-mediated bone morphogenetic protein-2 gene transfection for treatment of chronic bone defects

Zhu Xiao-meng1, Wang Chong1, Song Xing-hua1, Zhan Yu-lin2, Li Wen-ju1   

  1. 1Department of Bone Tumor Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2Department of Orthopedics, Affiliated Sixth People’s Hospital of Shanghai Jiao Tong University, Shanghai 200233, China
  • Revised:2014-02-21 Online:2014-03-12 Published:2014-03-12
  • Contact: Song Xing-hua, Master’s supervisor, Chief physician, Department of Bone Tumor Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Zhu Xiao-meng, Studying for master’s degree, Department of Bone Tumor Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81060144

摘要:

背景:体内外研究都已证实骨形态发生蛋白具有调节成骨细胞和成软骨细胞的分化、诱导异位骨形成、促进骨折愈合、控制哺乳动物骨骼不同形态特征形成的功能。

目的:使用含有骨形态发生蛋白2基因真核表达质粒的基因枪进行局部基因注射以治疗陈旧骨缺损。
方法:72只新西兰大白兔建立陈旧兔桡骨中段骨缺损模型,按所截骨长度均分1.5 cm组、2.0 cm和2.5 cm组。各组又随机分为治疗组(骨形态发生蛋白2基因转染组)和对照组(自然愈合组)。于转染后1,3,8,9周拍摄X射线平片,1,3,8和9周取骨折间软组织行骨形态发生蛋白2的Western blot检测,于1,3,8和9周时取标本大体观察,评价愈合情况。

结果与结论:①大体标本观察发现治疗组骨痂生成量多于对照组。②治疗组转染后1,3,8,9周的Lane-Sandhu X射线评分优于对照组,差异均有显著性意义(P < 0.05)。③骨形态发生蛋白2浓度定量,各时间点治疗组骨形态发生蛋白2浓度优于对照组,差异均有显著性意义(P < 0.05)。结果说明应用基因枪介导骨形态发生蛋白2基因局部转移治疗陈旧骨缺损效果明确。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 骨组织工程, 骨细胞, 陈旧性骨缺损, 愈合, 骨形态发生蛋白2, 基因转染, 基因枪, 国家自然科学基金

Abstract:

BACKGROUND: Both in vitro and in vivo studies have confirmed that, bone morphogenetic protein (BMP) regulates the differentiation of osteoblasts and chondroblasts, induces heterotopic bone formation, promotes fracture healing, and controls the morphology of skeleton in mammals.

OBJECTIVE: To treat chronic bone defects using particle gun containing BMP2 gene eukaryotic expression plasmid via local injection.
METHODS: A total of 72 healthy New Zealand white rabbits were applied to establish chronic bone defect model in the rabbit radius. According to the length of bone defect, the rabbits were divided into three groups: 1.5 cm group, 2.0 cm group, 2.5 cm group. Each group was further randomly assigned into two subgroups: treatment group (BMP-2 gene transfection) and control group (naturally healing). X-ray examinations were performed at 1, 3, 8 and 9 weeks after transfection, and soft tissue between the bone defects was harvested to detect BMP-2 using western blot analysis; and radius specimens were taken for gross observation at the same time points, to evaluate the healing.
RESULTS AND CONCLUSION: (1) Gross specimen observation: bone callus formation in treatment group was generally more than that in control group. (2) Lane-Sandhu X-ray score in treatment group was significantly higher than that in control group at 1, 3, 8, 9 weeks after transfection (P < 0.05). (3) BMP-2 concentration in treatment group was significantly higher than that in control group at each time point (P < 0.05). The local transfer of particle gun-mediated BMP-2 gene is an effective therapy of chronic bone defect.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: fractures, bone, bone morphogenetic proteins, osteotomy, biolistics, fracture healing

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