羟基磷灰石/磷酸三钙作为细胞载体的体外实验

目的：探讨羟基磷灰石/磷酸三钙（HA/TCP）复合材料作为组织工程载体的可能；为基质材料表面改性提供实验基础。方法：应用人骨髓基质细胞（hBMSCs）和脐静脉内皮细胞(UVECs)和HA/TCP进行混合培养，应用光学显微镜、荧光显微镜及扫描电子显微镜对其进行观察。结果：人骨髓基质细胞和脐静脉内皮细胞在HA/TCP表面均生长良好，并可观察到细胞长入基质材料微孔内的改变。结论：羟基磷灰石/磷酸三钙（HA/TCP）复合材料可作为细胞移植的载体。

Hydroxyapatite / tricalcium phosphate matrix scaffold as cell carriers in vitro

OBJECTIVE: To explore the possibility of hydroxyapatite/tricalcium phosphate (HA/TCP) matrix scaffold as cell carriers in tissue engineering, and to provide a direct evidence for the resurfacing of matrix scaffold. METHODS: Human bone marrow stromal cells (hBMSCs) and umbilical vein endothelial cells (UVECs) were co-cultured on the surface of matrix scaffold. The morphologic characters during culture on HA/TCP matrix scaffold's surfaces were checked by light microscope, fluorescence microscope, and scanning electronic microscope. RESULTS: Both human bone marrow stromal cells and human umbilical vein endothelial cells showed good biocompatibility with HA/TCP matrix scaffold. The cell growth into the micropore of HA/TCP matrix scaffold could be seen under both fluorescence microscopy and scaning electron microscopy. CONCLUSION: HA/TCP matrix scaffold can be used as a vehicle for the cell transplantation.