中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (16): 2859-2868.doi: 10.3969/j.issn.2095-4344.2013.16.002

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

复合骨髓间充质干细胞同种异体支架骨修复羊髂骨极限缺损

杨  楠,何惠宇,胡  杨,杨川博   

  1. 新疆医科大学第一附属医院口腔修复科,新疆维吾尔自治区乌鲁木齐市  830054
  • 收稿日期:2013-01-14 修回日期:2013-01-22 出版日期:2013-04-16 发布日期:2013-04-16
  • 通讯作者: 何惠宇,硕士生导师,教授,新疆医科大学第一附属医院口腔修复科,新疆维吾尔自治区乌鲁木齐市 830054 hehuiyu02@sina.com
  • 作者简介:杨楠★,女,1985年生,新疆维吾尔自治区乌鲁木齐市人,汉族,新疆医科大学在读硕士,主要从事口腔修复学的基础研究。yangnan8513@sina.com
  • 基金资助:

    国家自然科学基金地区基金项目(81060088)《三维打印构建组织工程化牙槽骨的实验研究》;新疆维吾尔自治区自然科学基金资助项目(2011211A073)《荧光蛋白标记的组织工程骨修复颌骨缺损及其成骨能力的观测研究》。

Bone marrow mesenchymal stem cells seeded into an allogeneic scaffold repair critical-sized iliac defects in sheep

Yang Nan, He Hui-yu, Hu Yang, Yang Chuan-bo   

  1. Department of Prosthodontics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi   830054, Xinjiang Uygur Autonomous Region, China
  • Received:2013-01-14 Revised:2013-01-22 Online:2013-04-16 Published:2013-04-16
  • Contact: He Hui-yu, Master’s supervisor, Professor, Department of Prosthodontics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China hehuiyu02@sina.com
  • About author:Yang Nan★, Studying for master’s degree, Department of Prosthodontics, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China yangnan8513@sina.com
  • Supported by:

    National Natural Science Foundation of China, No. 81060088*; Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2011211A073*

摘要:

背景:目前国内外有关组织工程骨材料及构建方法的研究持续升温,而临床上如何修复大面积骨缺损仍然是研究的难点和重点。
目的:对比观察同种异体骨支架材料、β-磷酸三钙材料以及碱性成纤维细胞生长因子慢病毒载体转染羊骨髓间充质干细胞的组织工程骨对羊髂骨极限骨缺损的修复效果。
方法:体外诱导培养羊骨髓间充质干细胞至第3代时,构建碱性成纤维细胞生长因子慢病毒载体。将转染及未转染的骨髓间充质干细胞同种异体支架骨材料、单纯同种异体骨支架材料、β-磷酸三钙材料回植入羊髂骨极限缺损模型(15 mm×10 mm×10 mm),修复后4,8,12周末进行影像学、组织学及扫描电镜观察。
结果与结论:碱性成纤维细胞生长因子慢病毒转染羊骨髓间充质干细胞后的组织工程骨材料修复极限骨缺损优于未转染的细胞骨支架材料、单纯同种异体骨支架材料及β-磷酸三钙材料;未转染的细胞骨支架材料优于单纯同种异体骨支架材料与β-磷酸三钙材料组;单纯同种异体骨支架材料降解速率大于β-磷酸三钙材料。结果提示,以碱性成纤维细胞生长因子慢病毒载体转染羊骨髓间充质干细胞加载同种异体骨支架材料构建的组织工程骨符合骨修复的需求,既可以引导新骨形成,又不会妨碍骨组织的重建和塑型,具有良好的生物相容性。

关键词: 生物材料, 组织工程骨材料, 极限骨缺损, 碱性成纤维细胞生长因子, 慢病毒载体, 骨髓间充质干细胞, 组织工程骨, 骨支架材料, β-磷酸三钙材料, 国家自然科学基金

Abstract:

BACKGROUND: Nowadays, the research regarding tissue engineering bone materials and construction methods continues to heat up, and how to repair large bone defects is still difficult in the clinic.
OBJECTIVE: To compare the effects of tissue engineering bones with allogeneic scaffold material, β-tricalcium phosphate material and basic fibroblast growth factor lentiviral vector-transfected bone marrow mesenchymal stem cells on the repairing of critical-sized iliac defects in sheep.
METHODS: The sheep bone marrow mesenchymal stem cells were in vitro induced and cultured to the third generation, and then the basic fibroblast growth factor lentiviral vector was constructed. The allogeneic scaffold materials with transfected and untransfected bone marrow mesenchymal stem cells, simple allogeneic scaffold materials and β-tricalcium phosphate materials were implanted into the sheep model of critical-sized iliac defects   (15 mm×10 mm×10 mm). Imaging, histology, and scanning electron microscopy observations were performed at 4, 8 and 12 weeks after repairing.
RESULTS AND CONCLUSION: The repairing effect of allogeneic scaffold materials with basic fibroblast growth factor lentiviral vector transfected bone marrow mesenchymal stem cells on sheep critical-sized iliac defects was better than that of untransfected allogeneic scaffold materials, simple allogeneic scaffold materials and β-tricalcium phosphate materials; the effect of untransfected allogeneic scaffold materials was better than that of simple allogeneic scaffold materials and β-tricalcium phosphate materials; the degradation rate of simple allogeneic scaffold materials was higher than that of β-tricalcium phosphate materials. The tissue engineering bone constructed using allogeneic scaffold materials with basic fibroblast growth factor lentiviral vector-transfected bone marrow mesenchymal stem cells can meet the requirement of bone repairing, and it can guide the new bone formation with good biocompatibility and cannot interfere with bone tissue reconstruction and modeling.

Key words: biomaterials, tissue-engineered bone materials, critical-sized defect, basic fibroblast growth factor, lentiviral vector, bone marrow mesenchymal stem cells, tissue engineering bone, bone scaffold materials, β-tricalcium phosphate materials, National Natural Science Foundation of China

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