华西口腔医学杂志

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破骨细胞相关因子在骨再建过程中表达的定量分析

常新1;侯志明2;柴田恭明2;塚崎智雄2;山口朗2   

  1. 1.大连医科大学附属第二医院口腔科辽宁大连116023;2.中国医科大学口腔医院正畸科,辽宁沈阳110002;3.长崎大学生物医学院发展和再建医学部 口腔病理和生物医学工程分野, 日本长崎852-8588
  • 收稿日期:2006-04-25 修回日期:2006-04-25 出版日期:2006-04-20 发布日期:2006-04-20
  • 通讯作者: 常 新,Tel:0411-84789095
  • 作者简介:常 新(1966-),女,山东人,副教授,博士
  • 基金资助:

    辽宁省自然科学基金资助项目(619022);辽宁省博士启动基金资助项目(2001102069);日本文部科学省博士后基金资助项
    目(02262)

Quantitative Study of Osteoclastic Related Factors in the Process of Bone Reconstruction

CHANG Xin1, HOU Zhi-ming2, SIBATA Yasuaki3,TSUKAZAKI Tomoo3,YAMAGUCHI Akira3   

  1. 1. Dept. of Oral Science, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China; 2. Dept. of Orthodontics, Stomatological School of China Medical University, Shenyang 110002, China; 3. Division of Oral Pathology and Biomedical Engineering,Dept. of Developmental and Reconstructive Medicine, Biomedical Sciences of Nagasaki University Graduate School,Nagasaki 852-8588, Japan
  • Received:2006-04-25 Revised:2006-04-25 Online:2006-04-20 Published:2006-04-20

摘要:

目的  研究肿瘤坏死因子-α(TNF-α)、核因子-?资B受体激动剂(RANKL)、抗酒石酸酸性磷酸酶(TRAP)在骨再建过程中的表达。方法  用8周龄雄性C57BL/6J小鼠建立骨折模型,用RT-PCR法对骨形成过程中TNF-α、RANKL和TRAP的表达进行时程分析。结果  骨折后TNF-α、RANKL、TRAP的表达均上调, 但峰值在不同的时间点出现。TNF-α在骨折后2 d达峰值, RANKL的峰值出现在骨折5 d后, 而TRAP的表达在骨折后10 d达到峰值。结论  骨的再建也有破骨细胞相关因子的参与, 它有赖于成骨和破骨的精确平衡。

关键词: 肿瘤坏死因子, 核因子-κB受体激动剂, 抗酒石酸酸性磷酸酶, 实时定量聚合酶链反应, 骨再建

Abstract:

Objective  To detect the expression of osteoclast related factors, tumor necrosis factor-α(TNF-α), receptor  activator of NF-?资B ligand(RANKL) and tartrate-resistant acid phosphatase(TRAP), in the process of bone remodeling. Methods  8-week-old male C57BL/6J mice were employed in this study to detect the expression of osteoclast related factors by real time PCR. Results  TNF-α, RANKL and TRAP were up regulated in the process of bone remodeling, they reached the peak on day 2,5 and 10 individually after injury. Conclusion  Osteoclast related factors also participate in bone remodeling, which depends on the delicate balance between bone formation and bone resorption.

Key words: tumornecrosisfactor, receptoractivatorofNF-κBligand, tartrate-resistantacidphosphatase, realtimepolymerasechainreaction, boneremodeling