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Kinto, N. et al.

Fibroblasts expressing Sonic hedgehog induce osteoblast differentiation and ectopic bone formation.

We investigated the role of Sonic hedgehog ( SHH) in osteoblast differentiation and bone formation. The numbers of ALP-positive cells in the mouse fibroblastic cell line C3H10T1/2 and the mouse osteoblastic cell line MC3T3-E1 were increased by co-culture with chicken fibroblasts transfected with chicken Shh cDNA encoding amino-terminal peptide (Shh-N). The conditioned medium of Shh-N-RCAS-transfected chicken fibroblast cultures also significantly increased ALP activity in both C3H10T1/2 and MC3T3-E1 cells. Intramuscular transplantation of Shh-N-RCAS-transfected chicken fibroblasts into athymic mice induced ectopic bone formation. These results indicate that SHH induces osteoblast differentiation and ectopic bone formation.[1]

References

Fibroblasts expressing Sonic hedgehog induce osteoblast differentiation and ectopic bone formation. Kinto, N., Iwamoto, M., Enomoto-Iwamoto, M., Noji, S., Ohuchi, H., Yoshioka, H., Kataoka, H., Wada, Y., Yuhao, G., Takahashi, H.E., Yoshiki, S., Yamaguchi, A. FEBS Lett. (1997) [Pubmed]

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