华西口腔医学杂志

• 基础研究 • 上一篇    下一篇

肿瘤坏死因子-α对大鼠成骨细胞生长影响的实验研究

薛立伟1 张君1 王旭霞1 卜涛1 刘梅2   

  1. 1.山东大学口腔医院口腔颌面外科; 2.山东大学齐鲁医院口腔科, 山东济南250012
  • 收稿日期:2009-08-25 修回日期:2009-08-25 出版日期:2009-08-20 发布日期:2009-08-20
  • 通讯作者: 王旭霞,Tel:0531-88382840
  • 作者简介: 薛立伟(1981—),男,山东人,硕士
  • 基金资助:

    山东省自然科学基金资助项目(Y2006C26)

Effects of tumor necrosis factor-α on the growth of rat osteoblasts

XUE Li-wei1, ZHANG Jun1, WANG Xuxia1, BU Tao1, LIU Mei2   

  1. 1. Dept. of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan 250012, China; 2. Dept. of Stomatology, Qilu Hospital, Shandong University, Jinan 250012, China
  • Received:2009-08-25 Revised:2009-08-25 Online:2009-08-20 Published:2009-08-20
  • Contact: WANG Xuxia,Tel:0531-88382840

摘要:

目的通过观察肿瘤坏死因子-α(TNF-α)对大鼠成骨细胞生长的影响,探讨TNF-α对成骨细胞的分子生物学调控作用。方法采用不同质量浓度TNF-α诱导大鼠成骨细胞,利用MTT法检测成骨细胞增殖的变化,利用4-硝基苯基磷酸二钠盐(PNPP)偶氮法检测成骨细胞碱性磷酸酶(ALP)活性情况。结果大鼠成骨细胞增殖活性及ALP活性随TNF-α质量浓度的升高而降低,其中当TNF-α质量浓度大于50 ng/mL时,与对照组的差异有统计学意义(P<0.05)。结论TNF-α对成骨细胞的增殖和分化均有抑制作用,当TNF-α质量浓度大于50 ng/mL时,这种抑制作用更明显。

关键词: 肿瘤坏死因子-α, 成骨细胞, 生长

Abstract:

Objective To investigate the effects of tumor necrosis factor alpha(TNF-α) on the growth of rat osteoblasts. To find out the mechanisms that TNF-α regulates the growth of osteoblasts. Methods To assay osteoblasts proliferation by MTT. To assay alkaline phosphatase(ALP) activity of osteoblasts by PP-nitrophenyl phosphate(PNPP). Results The osteblasts proliferation and the ALP activity decreased in treatment groups, and the significantly lower levels were observed in above 50 ng/mL groups(P<0.05). Conclusion TNF-α restrained osteoblasts proliferation and differentiation, and the effects were more significant in above 50 ng/mL groups.

Key words: tumor necrosis factor-α, osteoblast, growth