Investigation of osteogenic activity of primary rabbit periosteal cells stimulated by multi-axial tensile strain
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Periosteum–derived cells was indicated to respond to mechanical force and have stem cell potential capable of differentiating into multiple tissue. Investigation of osteogenic activity under mechanical stimulation is important to understand the therapeutic conditions of fracture healing. In this work, a cell culture platform was developed for respectively providing isotropic and anisotropic axial strain. Primary rabbit periosteal cells were isolated and cultured in the chamber. Multi-axial tensile strain was received and osteogenic activity was investigated by mRNA expressions of CBFA1 and OPN. The highest mRNA expression was found in moderate strain (5-8%) under anisotropic axial strain. These results provided important foundation for further in vivo studies and development of tailor-made stretching rehabilitation equipment.
KeywordsPeriosteal cells Osteogenic activity Orthopedics Rehabilitation
This work was supported by Chang Gung Memorial Hospital, Linkou branch, Taiwan (Project no. BMRPC05).
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