Expression of TRAF6 Protein and TRAF6 mRNA during Different Stages of Deciduous Tooth Root Physiological Absorption

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  • Zhang Guirong
    Department of Orthodontics, Stomatology Hospital of Shenyang
  • Zhou Linxi
    College of Stomatology, Shanghai Jiao Tong University
  • Ito Koji
    Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
  • Sugita Yoshihiko
    Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
  • Nakano Keisuke
    Hard Tissue Pathology Unit, Matsumoto Dental University Graduate School of Oral Medicine
  • Maeda Hatsuhiko
    Department of Oral Pathology, School of Dentistry, Aichi Gakuin University
  • Wang Xue
    Department of Orthodontics, Stomatology Hospital of Shenyang
  • Wang Minghua
    Department of Orthodontics, Stomatology Hospital of Shenyang

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Abstract

The expression of TRAF6 protein and TRAF6 mRNA during different stages of deciduous tooth root physiological absorption was observed. Deciduous teeth with physiological absorption period were divided into 3 groups according to the length of deciduous tooth root absorption: early stage of deciduous tooth root physiological absorption (I group), intermediate stage of deciduous teeth roots’ physiological absorption (II group), final stage of deciduous tooth root physiological absorption (III group). TRAF6 antibody and TRAF6 hybridization in situ agent were used to detect the expression of TRAF6 protein and TRAF6 mRNA of odontoclasts of deciduous teeth with different physiological absorption stages. Im-pro-plas 6.0 analytical system software was used to measure the optical density of odontoclasts stained in three groups. SPSS13.0 software was used to analyze the regularity of expression. Optical density value of TRAF6 immunohistochemistry stain and TRAF6 mRNA in situ hybridization stain of odontoclasts was larger in I and II group compared with the value in III group. It indicated that odontoclasts in early and intermediate stages showed more activity than in the final stage. Expression of TRAF6 protein and TRAF6 mRNA during different stages of deciduous tooth root physiological absorption was consistent with the activity of odontoclast.

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