华西口腔医学杂志

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实验性牙移动初期大鼠牙周组织CD133+血管内皮祖细胞的表达

李慧1 孙新华1 刘超2   

  1. 1.吉林大学口腔医院正畸科, 吉林长春130021;2.南京大学医学院附属口腔医院正畸科, 江苏南京210008
  • 收稿日期:2010-10-25 修回日期:2010-10-25 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 孙新华,Tel:0431-88796023
  • 作者简介:李慧(1982—),女,辽宁人,硕士

Expression of CD133+ endothelial progenitor cell in rat periodontal tissue during tooth movement

LI Hui1, SUN Xin-hua1, LIU Chao2   

  1. 1. Dept. of Orthodontics, School of Stomatology, Jilin University, Changchun 130021, China; 2. Dept. of Orthodontics, The Affiliated Hospital of Stomatology, Nanjing University, Nanjing 210008, China
  • Received:2010-10-25 Revised:2010-10-25 Online:2010-10-20 Published:2010-10-20
  • Contact: SUN Xin-hua,Tel:0431-88796023

摘要:

目的研究实验性牙移动初期大鼠牙周组织中CD133+血管内皮祖细胞(EPC)的表达。方法40只Wistar大鼠,随机分为实验组和对照组,建立牙移动动物模型。于加力后1、3、5、7、14 d处死动物并制作以上颌第一磨牙为中心近远中向的组织切片,进行苏木精-伊红染色、CD133免疫组织化学染色。结果大鼠正常牙周组织中未见CD133表达的新生血管。实验性牙移动初期,实验组牙周组织新生微血管内皮细胞中可见CD133阳性染色,牙周组织CD133表达于加力后1 d达到高峰,此后逐渐下降,但与对照组相比差异无统计学意义(P>0.05)。结论CD133+EPC参与了实验性牙移动牙周组织早期的血管改建,但其直接参与牙周组织血管生成较少,可能大多通过旁分泌作用参与新血管的形成。

关键词: 实验性牙移动, 牙周组织, 血管内皮祖细胞, CD133

Abstract:

Objective To investigate the expression patterns of CD133+ endothelial progenitor cell(EPC) on Wister rats during experimental tooth movement. Methods 40 Wistar rats’teeth movement models were established and divided into experiment group and control group. After loading 1, 3, 5, 7, 14 days killed them respectively. The histological sections were stained with hematoxylin-eosin and rabbit anti-rat CD133 polyclonal antibody to express CD133 immunoreactivity. Results Expression of CD133 in the new vessels did not appear in control group. In the early experiment, the expression of CD133 was discovered in the new vascular endothelial cells of periodontium in experiment group. Expression of CD133 got the maximum after loading 1 day in experiment group, then decreased gradually, but it was not significantly higher than control group(P >0.05). Conclusion CD133 + EPC participated vascularized reaction in periodontal tissue of rat during the experimental tooth movement, direct participation was few and indirect effects possibly existed.

Key words: experimental tooth movement, periodontal tissue, endothelial progenitor cell, CD133