中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (29): 5275-5281.doi: 10.3969/j.issn.2095-4344.2013.29.003

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

三种去抗原异种松质骨材料生物相容性的比较

尹小朋1,许慧芬2,何惠宇3   

  1. 新疆医科大学第一附属医院,1颌面肿瘤外科,3口腔修复科,新疆维吾尔自治区乌鲁木齐市  830054;2新疆职业病医院,新疆维吾尔自治区乌鲁木齐市  830091
  • 收稿日期:2012-12-14 修回日期:2013-01-05 出版日期:2013-07-22 发布日期:2013-07-22
  • 通讯作者: 何惠宇,博士,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 yxp516888@163.com
  • 作者简介:尹小朋★,男,1982年生,山东省莱芜市人,汉族,新疆医科大学毕业,硕士,医师,主要从事颌面部肿瘤及干细胞的研究。 yxp5168@163.com
  • 基金资助:

    国家自然科学基金资助项目(81060088),课题名称: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项目(2011211A073),课题名称: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。

Comparison of the biocompatibility of three kinds of antigen-extracted xenogeneic cancellous bone matrices

Yin Xiao-peng1, Xu Hui-fen2, He Hui-yu3   

  1. 1Department of Maxillofacial Surgery, First Affiliated Hospital, Xinjiang Medical University, Urumqi  830054, Xinjiang Uygur Autonomous Region, China; 2Occupational Disease Hospital of Xinjiang Uygur Autonomous Region, Urumqi  830091, Xinjiang Uygur Autonomous Region, China; 3Department of Prosthodontics, First Affiliated Hospital, Xinjiang Medical University, Urumqi  830054, Xinjiang Uygur Autonomous Region, China
  • Received:2012-12-14 Revised:2013-01-05 Online:2013-07-22 Published:2013-07-22
  • Contact: He Hui-yu, M.D., Department of Prosthodontics, First Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China yxp516888@163.com
  • About author:Yin Xiao-peng★, Master, Physician, Department of Maxillofacial Surgery, First Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China yxp5168@163.com
  • Supported by:

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

摘要:

背景:经过一系列理化处理去抗原后的异种骨支架材料,其形态与结构类似于人体骨组织。
目的:检测3种不同方法制备去抗原异种骨支架材料的生物相容性。
方法:将经过物理、化学及物理联合化学方法制备的去抗原异种骨支架与羟基磷灰石生物陶瓷4组材料分别植入裸鼠背部皮下组织,术后4,8,12周行组织学观察。以经过物理、化学及物理联合化学方法制备的去抗原异种骨支架材料浸提液分别培养羊骨髓间充质干细胞7 d,观察细胞黏附、生长、增殖及基质分泌情况。
结果与结论:术后4周时,4组材料周围均有较强的炎症反应;术后12周时,物理及物理联合化学制备的去抗原异种骨支架和羟基磷灰石生物陶瓷材料孔隙内及周围组织炎症反应基本消失,极少量炎症细胞存在,材料降解较术后8周时多。化学制备的去抗原异种骨支架材料孔隙内及周围组织炎症反应仍存在;表明物理及物理联合化学制备的去抗原异种骨支架具有良好的组织相容性。羟基磷灰石生物陶瓷和物理联合化学法制备的去抗原异种骨支架材料周围有少量成骨细胞规则排列,并可见少量成骨,表明有异位成骨的趋势。经过物理或物理联合化学方法去除抗原的异种骨支架材料具有良好的细胞相容性;单纯经过化学方法处理的异种骨材料细胞相容性较差,不符合生物材料安全性标准。

关键词: 生物材料, 组织工程骨材料, 异种骨支架材料, 羟基磷灰石生物陶瓷, 生物相容性, 皮下植入, 细胞毒性, 骨髓间充质干细胞, 国家自然科学基金

Abstract:

BACKGROUND: The form and structure of antigen-extracted xenogeneic cancellous bone through series of physical and chemical treatment are similar to human tissue.
OBJECTIVE: To detect the biocompatibility of antigen-extracted xenogeneic cancellous bone matrix prepared by three different ways.
METHODS: The antigen-extracted xenogeneic cancellous bone scaffold materials which were prepared through physical, chemical and physical-chemical combined methods and hydroxy apatite biological ceramic materials were implanted into the dorsum subcutaneous tissue. Histological observation was done at 4, 8 and 12 weeks after surgery. The antigen-extracted xenogeneic cancellous bone scaffold materials which were prepared through physical, chemical and physical-chemical combined methods respectively was used to culture sheep bone marrow mesenchymal stem cells for 7 days. Cell adhesion, growth, proliferation and stroma secretion were observed.
RESULTS AND CONCLUSION: At 4 weeks after surgery, a strong inflammatory reaction was detected around materials in four groups. At 12 weeks, the xenogeneic bone materials prepared through physical and physical-chemical combined methods and hydroxy apatite biological ceramic materials internal pore and surrounding tissue inflammation disappeared basically, with the presence of thimbleful inflammation cells. The material degradation was more than at 8 weeks. The xenogeneic bone materials prepared through chemical methods material internal pore and surrounding tissue inflammation still existed, suggesting that the xenogeneic bone materials prepared through physical and physical-chemical combined methods exhibited good histocompatibility. A small amount of orderly osteoblasts existed around hydroxy apatite biological ceramic materials and physical-chemical prepared materials, with a small amount of bone. These suggested that there was a tendency for ectopic bone formation. The xenogeneic cancellous bone materials prepared through physical or physical-chemical combined methods have better cytocompatibility. However, scaffold materials prepared through chemical method have poor cytocompatibility and they are not qualified for the safety standards of biological materials.

Key words: biomaterials, tissue-engineered bone materials, xenogenic bone scaffold materials, hydroxyapatite biological ceramic, biocompatibility, subcutaneous implantation, cytotoxicity, bone marrow mesenchymal stem cells, National Natural Science Foundation of China

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