Journal of Oral Science Research ›› 2015, Vol. 31 ›› Issue (4): 354-358.

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Adhesion, Proliferation and Differentiation of MC3T3-E1 Cell on Bovine Bone Substitute Modified with RGD Peptide.

GAO Yuan-yuan, ZHOU Zi-qian, LIU Hui-feng, et al   

  1. Tomatological Hospital Affiliated Medical School, Nanjing University, Nanjing 210000
  • Received:2014-09-03 Online:2015-04-28 Published:2016-04-29

Abstract: Objective: To evaluate the effect of adhesion, proliferation and differentiation of MC3T3-E1 cells on the bovine bone modified by RGD peptide. Methods: In RGD/Bio-Oss group, Bio-Oss was coated with RGD using only deep and dry methods. The MC3T3-E1 cells were seeded on the RGD modified Bio-Oss, after 1h, 2h and 3h, the adhesion of MC3T3-E1 cells was determined by MTT assay. The morphology of MC3T3-E1 cells was observed by SEM. The proliferation of MC3T3-E1 cells was determined by DNA concentration after 1d, 3d, 5d and 7d. The MC3T-E1 cells were cultured on RGD modified Bio-Oss for 7d and 14d with osteogenic supplements, the ALP activity of the MC3T3-E1 cells was measured. Results: The cell adhesion of the RGD modified Bio-Oss group was much higher than the unmodified Bio-Oss group and control group. No significant difference in cell DNA concentration between modified and unmodified Bio-Oss after 1d, 3d, 5d and 7d culture, but lower than control group. On the 14d osteogenesis inducing, the ALP activity of the cultured MC3T3-E1 cells on modified Bio-Oss was higher than unmodified Bio-Oss group and control group. Conclusion: RGD peptide could enhance MC3T3-E1 cells adhesion on Bio-Oss and promote osteogenesis differentiation, but no obvious proliferation effects.

Key words: RGD peptide, Bovine bone , MC3T3-E1, Adhesion

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