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[The biological effects of recombinant human bone morphogenetic protein 2 on human periodontal ligament fibroblasts].

OBJECTIVE
The purpose of this study is to study the biological effects of recombinant human bone morphogenetic protein 2 (rhBMP2) on human periodontal ligament fibroblasts (HPDLFs).


METHODS
Human periodontal ligament fibroblasts were primary cultured and detected the different doses of rhBMP2 on their proliferation, alkaline phosphatase (ALP) activity, osteocalcin (OC) synthesis and formation of the mineralized nodules.


RESULTS
rhBMP2 (0.25-2 mg/ml) had no remarkable effect on the proliferation of HPDLFs. The ALP activity, OC synthesis and formation of the mineralized nodules of HPDLFs were significantly stimulated by 0.5-2 mg/ml rhBMP2.


CONCLUSION
The effects of rhBMP2 on HPDLFs are dose-dependent. Not only can rhBMP2 stimulate the expression but also promote the maturation of osteoblastic phenotype of HPDLFs.