Objective To study the significance of the osteocalcin, bone sialoprotein and osteopontin in cell differentiation and matrix mineralization of osteosarcoma.

• 摘要目的探讨骨钙蛋白(OC)、骨涎蛋白(BSP)、骨桥蛋白(OPN)在骨肉瘤细胞分化与基质矿化中的意义。