中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (38): 6069-6073.doi: 10.3969/j.issn.2095-4344.2014.38.001

• 骨组织构建 bone tissue construction •    下一篇

双膦酸盐对破骨细胞分化及抗酒石酸酸性磷酸酶的影响

董  伟,冯晓洁,梁永强,邓久鹏,温黎明,戚孟春   

  1. 河北联合大学口腔医学院,河北省唐山市  063000
  • 收稿日期:2014-08-11 出版日期:2014-09-10 发布日期:2014-09-10
  • 通讯作者: 戚孟春,博士, 教授,硕士生导师,联合大学口腔医学院,河北省唐山市 063000
  • 作者简介:董伟,男,1981年生,汉族,辽宁省辽中县人, 2011年河北联合大学口腔医学院毕业,硕士,讲师,主要从事骨组织工程研究工作。
  • 基金资助:

    国家自然科学基金(81270965);河北省自然科学基金(C2011401044)

Effect of bisphosphonate on osteoclast differentiation and tartrate-resistant acid phosphatase

Dong Wei, Feng Xiao-jie, Liang Yong-qiang, Deng Jiu-peng, Wen Li-ming, Qi Meng-chun   

  1. School of Stomatology, Hebei United University, Tangshan 063000, Hebei Province, China
  • Received:2014-08-11 Online:2014-09-10 Published:2014-09-10
  • Contact: Qi Meng-chun, M.D., Professor, Master’s supervisor, School of Stomatology, Hebei United University, Tangshan 063000, Hebei Province, China
  • About author:Dong Wei, Master, Lecturer, School of Stomatology, Hebei United University, Tangshan 063000, Hebei Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81270965; the Hebei Natural Science Foundation, No. C2011401044

摘要:

背景:抗酒石酸酸性磷酸酶是破骨细胞分化及骨吸收功能的特异性标志酶,是破骨细胞分化成熟的标志。
目的:观察双膦酸盐对破骨细胞分化及骨吸收功能相关因子抗酒石酸酸性磷酸酶的影响。
方法:小鼠单核巨噬细胞RAW264.7诱导培养破骨细胞。实验分2组:对照组开始时加入质量浓度100 μg/L核因子kB受体活化因子配体进行诱导至收获细胞,双膦酸盐组在对照组的基础上加入10-7 mol/L阿仑膦酸盐处理至收获细胞。培养第7天检测各组破骨细胞生成和骨吸收功能,免疫荧光检测两组抗酒石酸酸性磷酸酶表达的差异,Western blot检测抗酒石酸酸性磷酸酶蛋白表达情况。
结果与结论:各组细胞均有抗酒石酸酸性磷酸酶阳性多核破骨细胞生成,并在牙本质磨片上形成吸收陷窝;但对照组抗酒石酸酸性磷酸酶阳性多核细胞数目、吸收陷窝数目及陷窝面积均大于双膦酸盐组(P < 0.01)。免疫荧光检测显示,对照组抗酒石酸酸性磷酸酶表达均强于双膦酸盐组(P < 0.01)。Western blot检测显示,双膦酸盐组抗酒石酸酸性磷酸酶蛋白的表达低于对照组(P < 0.01)。说明双膦酸盐通过抑制抗酒石酸酸性磷酸酶蛋白的表达,阻碍破骨细胞分化生成及骨吸收功能。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 骨组织构建, 双膦酸盐, 破骨细胞, 抗酒石酸酸性磷酸酶, 免疫印迹法, 骨吸收陷窝, 免疫荧光化学检测, 骨质疏松, 扫描电镜, 牙本质磨片, 核因子kB受体活化因子配体, 国家自然科学基金

Abstract:

BACKGROUND: Tartrate-resistant acid phosphatase is a specific marker for osteoclast differentiation and bone resorption, which is a sign of osteoclast maturity.
OBJECTIVE: To study the effect of alendronate on tartrate-resistant acid phosphatase related to osteoclast differentiation and bone resorption.
METHODS: Osteoclasts were cultured by mouse monocyte-macrophage cell line-RAW264.7. The cells were divided into two groups: control group, treated with 100 μg/L receptor activator of nuclear factor κB ligand factor; alendronate group, treated with 100 μg/L receptor activator of nuclear factor κB ligand factor+10-7 mol/L alendronate. Osteoclastogenesis and resorption function of osteoclasts were examined at 7 days of culture. Gene expression of tartrate-resistant acid phosphatase was detected by immunofluorescence method. Western blot assay was used to detect protein expression of tartrate-resistant acid phosphatase.
RESULTS AND CONCLUSION: Tartrate-resistant acid phosphatase positive multinuclear cells were observed and resorption lacunae formed in two groups. Control group showed the higher number of tartrate-resistant acid phosphatase positive multinuclear cells and larger size of resorption lacunae than the alendronate group (P < 0.01). Immunofluorescence showed expression of tartrate-resistant acid phosphatase was higher in the control group than the alendronate group (P < 0.01); furthermore, the protein expression of tartrate-resistant acid phosphatase was also lower in the alendronate group than the control group (P < 0.01). These findings indicate that bisphosphonates could strongly inhibit osteoclastogenesis and its resorption function by inhibiting protein  expression of tartrate-resistant acid phosphatase.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: tissue engineering, diphosphonates, osteoclasts, osteoporosis

中图分类号: