›› 2000, Vol. 20 ›› Issue (2): 76-78.

• 论文 • 上一篇    下一篇

成骨生长肽对新生大鼠颅盖骨成骨细胞样细胞影响的生化分析

  

  1. 上海第二医科大学附属瑞金医院 上海市伤骨科研究所,上海 200025
  • 收稿日期:2000-01-10 出版日期:2000-01-25 发布日期:2013-03-19
  • 基金资助:
    国家自然科学基金(39670724)

Biochemical Analysis on Effect of Osteogenic Growth Peptide on Osteoblast-like Cell in Rat

  1. Department of Orthopedics,Ruijin Hospital,Shanghai Second Medical University,Shanghai 200025,China
  • Received:2000-01-10 Online:2000-01-25 Published:2013-03-19

摘要: 为了研究成骨生长肽在体外对成骨细胞样细胞的促成骨作用。将新生大鼠颅盖骨成骨细胞样细胞在体外培养,实验组细胞在传第二代后加入成骨生长肽(10-8mol/L),对照组不加。细胞传代两次后,于第四周起,分3、7、10、14和21 d收集两组培养的细胞和细胞液,检测其中的碱性磷酸酶、酸性磷酸酶、胶原、蛋白多糖及钙含量。结果实验组的细胞和培养液中第3、7、10、14、21天碱性磷酸酶显著地高于对照组(P<0.01~0.05),钙含量实验组显著地高于对照组,(P<0.05)胶原含量实验组高于对照组约1.5倍(P<0.01),而其他生化指标实验组与对照组无显著差别。结论成骨生长肽具有明显地促进成骨细胞样细胞向成骨细胞转化的作用,促进新骨形成。

关键词: 成骨细胞样细胞, 成骨生长肽, 碱性磷酸酶, 新生大鼠

Abstract: To investigate the regulatory role of osteogenic growth peptide (OGP) in rat osteoblast-like cell.The isolated osteoblastic cells from calvaria bone of newborn rats were cultured in vitro. They were divided into two groups,one was added with OGP,the other was added with DMEM as the control. The medium was changed twice a week. On the 3rd、7th、10th、14th、21th culture-day,the activity of alkaline phosphatase、acid phosphatase,the contents of proteoglycan、collagen and Ca in the cells and extracellular-matrix were detected. The results showed that,the alkaline phosphatase activities and calcium level in the osteoblastic cells of OGP group on the3rd,7th, 10th,14th, 21th culture-day were significantly higher than those of the control groups (P<0.01-0.05), the collagen level of OGP group were 1.5 times higher than the control (P<0.01).It was concluded that OGP can greatly promote the proliferation of osteoblast-like cells and produce more bone tissues.

Key words: Osteoblastic cell, Osteogenic Growth Peptide (OGP), Alkaline phos-phatase, Rat