title: [Expression of CD133+ endothelial progenitor cell in rat periodontal tissue during tooth movement].
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).
  
  
  CONCLUSIONS
  CD133+ EPC participated vascularized reaction in periodontal tissue of rat during the experimental tooth movement, direct participation was few and indirect effects possibly existed.
authors.affiliation: Dept. of Orthodontics, School of Stomrnatology, Jilin University, Changchun 130021, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Xin-hua
authors.initials: XH
authors.lastname: Sun
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
mesh_terms: D000818:Animals; D042783:Endothelial Cells; D066026:Endothelial Progenitor Cells; D010513:Periodontal Ligament; D051381:Rats; D017208:Rats, Wistar; D014087:Tooth Movement Techniques