中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (12): 1895-1900.doi: 10.3969/j.issn.2095-4344.2014.12.015

• 复合支架材料 composite scaffold materials • 上一篇    下一篇

羟基丁酸-羟基辛酸聚合物/胶原软骨组织工程支架的细胞亲和性

陆  兴1,张永红1,李二峰1,王增荣1,赵良启2   

  1. 1山西医科大学第二医院骨科,山西省太原市  030001
    2山西大学生物技术研究所,山西省太原市  030006
  • 修回日期:2014-01-13 出版日期:2014-03-19 发布日期:2014-03-19
  • 通讯作者: 张永红,博士,硕士生导师,主任医师,山西医科大学第二医院骨科,山西省太原市030001
  • 作者简介:陆兴,男,1978年生,山西省阳泉市人,汉族,山西医科大学第二医院在读硕士,主要从事骨与软骨组织工程的研究。
  • 基金资助:

    国家自然科学基金(主任基金)(31040030)

Cell affinity of cartilage tissue engineering scaffolds prepared by poly(hydroxybutyrate-co-hydroxyoctanoate)/collagen composite materials

Lu Xing1, Zhang Yong-hong1, Li Er-feng1, Wang Zeng-rong1, Zhao Liang-qi2   

  1. 1Department of Orthopedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
    2Institute of Biotechnology, Shanxi University, Taiyuan 030006, Shanxi Province, China
  • Revised:2014-01-13 Online:2014-03-19 Published:2014-03-19
  • Contact: Zhang Yong-hong, M.D., Master’s supervisor, Chief physician, Department of Orthopedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
  • About author:Lu Xing, Studying for master’s degree, Department of Orthopedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31040030

摘要:

背景:已有很多实验证明,单独高分子材料或生物性材料制备的组织工程支架无法满足组织工程研究。
目的:评价羟基丁酸-羟基辛酸聚合物/胶原组织工程支架的生物学特性及细胞亲和性。
方法:以羟基丁酸-羟基辛酸聚合物作为主体材料,按质量分数复合不同比例(2%,4%,6%,8%,10%)的胶原,采用溶剂浇铸-颗粒沥滤法制备组织工程支架。通过扫描电镜观察材料内部结构及孔径大小,液体位移法测定材料孔隙率。将羟基丁酸-羟基辛酸聚合物/胶原支架、羟基丁酸-羟基辛酸聚合物支架分别与兔软骨细胞复合培养,MTT法测定细胞的生长曲线,扫描电镜观察细胞在材料上的生长黏附情况。
结果与结论:羟基丁酸-羟基辛酸聚合物/胶原复合软骨组织工程支架孔径大小200 μm左右,孔隙率为(85±2)%,细胞亲水性随加入胶原比例的增加而升高。与羟基丁酸-羟基辛酸聚合物支架比较,不同比例的羟基丁酸-羟基辛酸聚合物/胶原支架可明显促进软骨细胞的黏附、增殖。证实羟基丁酸-羟基辛酸聚合物/胶原复合支架具备更好的细胞亲和性。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 软骨生物材料, 羟基丁酸-羟基辛酸聚合物(PHBHOx), 胶原, 软骨, 组织工程, 国家自然科学基金

Abstract:

BACKGROUND: Many experiments have demonstrated that tissue engineering scaffolds prepared by polymer materials alone or biomaterials cannot meet the requirement of tissue engineering research.
OBJECTIVE: To evaluate biological characteristics and cell affinity of poly(hydroxybutyrate-co-hydroxyoctanoate)/collagen composite scaffold.
METHODS: Tissue engineering scaffolds were prepared by combination of poly(hydroxybutyrate-co-hydroxyoctanoate) and collagen at different proportions (2%, 4%, 6%, 8% and 10%) using solvent casting/particulate leaching method. Inner structure and apertures were observed by scanning electron microscope, and the porosity was determined by liquid displacement method. Rabbit chondrocytes were co-cultured with poly(hydroxybutyrate-co-hydroxyoctanoate)/collagen composite scaffold and poly(hydroxybutyrate-co-hydroxyoctanoate) scaffold. Growth curve of cells was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and cell adhesion on the scaffolds was observed by scanning electron microscope.
RESULTS AND CONCLUSION: The pore size and porosity of the composite scaffold were about 200 μm and (85±2)%, respectively. The cell affinity dynamically increased with the increasing of proportion of collagen. Compared with the poly(hydroxybutyrate-co-hydroxyoctanoate) scaffold, the poly(hydroxybutyrate-co- hydroxyoctanoate)/collagen composite scaffolds are better to improve cell adhesion and proliferation, with favorable cellular affinity.


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: biocompatible materials, 3-hydroxybutyric acid, collagen, chondrocytes

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