华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

纳米羟基磷灰石骨细胞相容性的研究

温 波1,陈治清2,蒋引珊3,杨正文3,徐勇忠1   

  1. 1.吉林大学口腔医学院 口腔颌面外科教研室,吉林 长春130041; 2.四川大学华西口腔医学院 材料学教研室,四川 成都610041; 3.吉林大学材料科学与工程学院 无机非金属材料系,吉林 长春130021
  • 收稿日期:2004-12-25 修回日期:2004-12-25 出版日期:2004-12-20 发布日期:2004-12-20
  • 通讯作者: 陈治清,Tel:028-85502407
  • 作者简介:温 波(1968-),男,吉林人,讲师,博士,现在四川大学华西口腔医学院博士后流动站工作
  • 基金资助:
    吉林省科技发展计划资助项目(20030424-02)

Cytocompatibility of Nanophase Hydroxyapatite Ceramics

WENBo1,CHENZhi-qing2,JIANG Yin-shan3,YANG Zheng- wen3,XU Yong-zhong1   

  1. 1.Dept.of Oral and Maxillofacial Surgery,College ofStomatology,Jilin University,Changchun 130041,China; 2.Dept.ofBiomaterials,West China College ofStomatology,Sichuan University,Chengdu610041,China; 3.Dept.ofInorganic Materials,College ofMaterials and Engineering,Jilin University,Changchun130021,China
  • Received:2004-12-25 Revised:2004-12-25 Online:2004-12-20 Published:2004-12-20

摘要: 目的 比较纳米羟基磷灰石(nHA)和常规羟基磷灰石(cHA)骨细胞相容性方面的差异。方法 采用化学 沉淀法制备nHA粉体,采用压制成型和无压烧结工艺制备nHA与cHA的块体材料。建立Wistar乳鼠体外原代分离 培养成骨细胞实验模型,将细胞分别接种于nHA与cHA的表面,观察1、3、5、7 d时细胞在材料表面的形态变化和 增殖情况。结果 制备的nHA与cHA的平均粒径分别为55 nm和780 nm。在nHA与cHA材料表面,成骨细胞能 正常粘附、伸展、增殖,附着形态未见明显的差异。与cHA比较,成骨细胞更易于在nHA表面吸附。结论 与相应 的cHA比较,成骨细胞与nHA间具有更好的骨细胞相容性。

关键词: 纳米羟基磷灰石, 成骨细胞, 骨细胞相容性

Abstract:

Objective To evaluate the cytocompatibility of nanophase hydroxyapatite ceramicsinvitro.Methods Hydroxyap- atite(HA) was prepared viawetmethod. The grain size of the hydroxyapatite in the studywas determined by scanning electron mi- croscope and atomic force microscope with image analysis software. Primary osteoblast culture was established from rat calvaria. Cell adherence and proliferation on nanophase hydroxyapatite ceramics and conventional hydroxyapatite ceramics were examined at 1, 3, 5, 7 days. Morphology of the cellswas observed bymicroscope.Results The average grain size of the nanophase and con- ventional HAwas 55 nm and 780 nm, respectively. Throughout 7 days period, osteoblast proliferation on the HA was similar to that on tissue culture borosilicate glass controls, osteoblasts could attach, spread and proliferate on HA. However, compared to conventional ceramics, osteoblast proliferation on nanophase HAwas significantly better after1,3,5 and 7 days.Conclusion Cy- tocompatibility of nanophase HAwas significantly better than conventional ceramics.

Key words: nanophas hydroxyapatite ceramic, osteoblast, cytocompatibility