Ectopic Osteogenesis of Bone Marrow Stromal Cells loading in Hydroxyapatite/ β-Tricalcium Phosphate

摘要

This study was to determine the ectopic osteogenic ability of BMSCs in combination with a scaffolding material comprising hydroxyapatite and β-tricalcium phosphate matrix (HA/β-TCP). BMSCs were obtained from the SD rats and induced to osteogenesis. Then these induced cells were seeded into HA/β-TCP and the constructs were auto-implanted subcutaneously for up to 12 weeks. Histological analysis, immunostaing, RT-PCR and transmission electron microscopy of the retrieved specimens at various intervals showed obvious trends of ectopic bone formation with obvious alteration of cellular phenotype.