Journal
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
Volume 76B, Issue 1, Pages 230-239Publisher
WILEY
DOI: 10.1002/jbm.b.30357
Keywords
adipose tissue-derived stromal cells; bone marrow-derived mesenchymal stem cells; beta-tricalcium phosphate; osteogenic differentiation; bone formation
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Human adipose tissue, obtained by liposuction, was processed to obtain a fibroblast-like population of cells or adipose tissue-derived stromal cells (ATSCs). The ATSCs, as well as bone marrow-derived mesenchymal stem cells (BMSCs), have the capacity for renewal and the potential to differentiate into multiple lineages of mesenchymal tissues. These cells are capable of forming bone when implanted ectopically in an appropriate scaffold. The aim of this study was to evaluate a beta-tricalcium phosphate (beta 3-TCP) as a scaffold and to compare the potential of osteogenic differentiation of ATSCs with BMSCs. Both cell types were loaded into beta-TCP disk and cultured in an osteogenic induction medium. Optimal osteogenic differentiation in ATSCs in vitro, as determined by secretion of osteocalcin, scanning electron microscope, and histology, were obtained in the culturing with the beta-TCP disk. Furthermore, bone formation in vivo was examined by using the ATSG or BMSC-loaded scaffolds in nude mice. The present results show that ATSCs have a similar ability to differentiate into osteoblasts and to synthesize bone in beta-TCP disk as have BMSCs.
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