期刊
TISSUE ENGINEERING PART A
卷 16, 期 3, 页码 879-887出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ten.tea.2009.0312
关键词
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资金
- International Team of Implantology Research Foundation [547-2007]
Heterodimeric bone morphogenetic proteins (BMPs) were exhibited to be more potent than and thus potential substitutes for homodimeric BMPs whose clinical application is limited for the drawbacks resulted from their higher effective doses. This study aims to delineate the biofunctional characteristics of recombinant human BMP2/7 (rhBMP2/7) heterodimer in inducing osteoblastogenesis of MC3T3-E1 through in vitro time-course and dose-response studies. rhBMP2/7 heterodimer induced cell migration with a significantly lower optimal concentration and higher peak effect than the respective homodimers. rhBMP2/7 heterodimer induced cell differentiation with significantly lower threshold concentrations but similar maximum effects. On day 28, the area of calcium depositions induced by 50 ng/mL rhBMP2/7 was 12- or 38-fold more than that of 50 ng/mL rhBMP2 or 50 ng/mL rhBMP7, respectively. The results indicated that rhBMP2/7 heterodimer was an osteoblastogenesis inducer of not higher potency but lower effective concentration compared with rhBMP2 and rhBMP7 homodimers.
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