【摘要】 [目的]制备一种双相陶瓷生物活性骨,并了解其细胞相容性。[方法]分离培养兔骨髓基质干细胞(mes-enchymalstemcells,MSCs),将浓度为1×106/ml的第3代MSCs接种于复合有I型胶原、骨形态发生蛋白(bonemor-phogenetkprotein,BMP)和碱性成纤维细胞生长因子(basicfibroblastgrowthfactor,bFGF)的双相陶瓷生物骨(bniphaskceramicbioiogicbone,BCBB)上,联合培养,用倒置相差显微镜、扫描电子显微镜观察,测定光密度(OD)值,了解双相陶瓷生物活性骨BCBB/BMP/bFGF的细胞相容性。[结果]BCBB孔内充满I型胶原、BMP及bF-GF。MSCs在双相陶瓷生物活性骨BCBB/BMP/bFGF上黏附生长,第6d时细胞在材料表面形成致密细胞层,增殖达稳定状态。[结论]该研究制备的双相陶瓷生物活性骨BCBB/BMP/bFGF具有良好的细胞相容性。更多还原

【Abstract】 [Objective]To prepare a kind of biphasic ceramic biologic active bone and study its biocompatibility.[Method]Biphasic ceramic biologic bone(BCBB) was mixed with collage type I,bone morphogenetic protein(BMP) and basic fibroblast growth factor(bFGF),and then the third generation cultured rabbit bone mesenchymal stem cells(MSCs) were seeded on BCBB/BMP/bFGF in vitro.The tissue engineering bone(BCBB/BMP/bFGF/MSCs) was observed by upside down microscope,scanning electron microscope(SEM) and examined using methylthiazol tetrazolium(MTT).[Result]Biphasic ceramic biologic active bone BCBB/BMP/bFGF was successfully prepared by reconstituting collage type I,BMP,bFGF and BCBB together.The rabbit cells grew in and on the BCBB/BMP/bFGF to form an ideal tissue engineering bone,and the cells quantity was the most on the 6th day.[Conclusion]BCBB/BMP/bFGF possesses a good biocompatibility with rabbit bone mesenchymal stem cells.更多还原