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アメロゲニンの持つ歯根吸収抑制作用の臨床応用にむけて

Research Project

Project/Area Number 16659570
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Orthodontic/Pediatric dentistry
Research InstitutionTokyo Medical and Dental University

Principal Investigator

須田 直人  東京医科歯科大学, 大学院・医歯学総合研究科, 講師 (90302885)

Co-Investigator(Kenkyū-buntansha) 斉藤 正寛  神奈川歯科大学, 歯学部, 講師 (40215562)
大山 紀美栄  東京医科歯科大学, 大学院・医歯学総合研究科, 教授 (90014216)
春日井 昇平  東京医科歯科大学, 大学院・医歯学総合研究科, 教授 (70161049)
北原 裕  日本学術振興会, 特別研究員
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2005: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2004: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsアメロゲニン / 歯根吸収 / 破歯細胞 / drug delivery system
Research Abstract

odontoclastは同じ吸収系細胞であるosteoclastと異なり、これまでin viroの培養系が報告されていなかった。そこで、我々は吸収期にあるヒト乳歯歯根を用いて酵素処理によって再現性よくodontoclastを単離する系を開発した。
硬組織吸収系細胞の形成誘導を評価するin vitroの実験系として、マウス骨髄培養系や脾臓細胞培養系、また我々が開発した萌出中のマウスの歯と歯周組織を用いた培養系(Suda et al.,Bone,2003)が知られている。これらの培養系で形成される吸収系細胞は象牙質上で培養すると吸収窩を形成し、in vivoで歯根吸収を担うodontoclastやcementoclastと良く似た形質を持つことが知られている。
(1)odontoclastは同じ吸収系細胞であるosteoclastと異なり、これまでin viroの培養系が報告されていなかった。そこで、我々は吸収期にあるヒト乳歯歯根を用いて酵素処理によって再現性よくodontoclastを単離する系を開発した。
(2)エムドゲイン中の生理活性因子であるアメロゲニンの歯根吸収抑制作用の検討を計画した。その結果、アメロゲニンのisoformが硬組織吸収細胞の形成や吸収活性を抑制した。
(3)(2)の抑制はRANKL発現抑制を介していた。

Report

(2 results)
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (12 results)

All 2005 2004 Other

All Journal Article (12 results)

  • [Journal Article] Mandibular prognathism in Japanese families ascertained through orthognathically treated patients.2005

    • Author(s)
      Watanabe M, Suda N, Ohyama K
    • Journal Title

      Am J Orthod Dentofacial Orthop. 128・4

      Pages: 466-700

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mandibular prognathism in Japanese family ascertained through orthognathically-treated excessive mandible patients2005

    • Author(s)
      Watanbe M, Suda N, Ohyama K
    • Journal Title

      Am J Orthod Dentfacial Orthop (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Runx2 deficient mice lack mandibular condylar cartilage and have deformed Meckel's cartilage.2004

    • Author(s)
      Shibata S, Suda N, Yoda S, Fukuoka H, Ohyama K, Yamashita Y, Komori T
    • Journal Title

      Anat Embryol 208・4

      Pages: 273-280

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Accelerated bone formation and increased osteoblast number contribute to the abnormalttooth germ development in parathyroid hormone-related protein (PTHrP)-knockout mice.2004

    • Author(s)
      Kitahara Y, Suda N, Terashima T, Mekaapiruk K, Hammond VE, Takano Y, Ohyama K
    • Journal Title

      Bone 35・5

      Pages: 1100-1106

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Delayed tooth eruption and suppressed osteoclast number in the eruption pathway of eterozygous Runx2/Cbfa1 knockout mice.2004

    • Author(s)
      Yoda S, Suda N, Kitahara Y, Komori T, Ohyama K
    • Journal Title

      Archs Oral Biol 49・6

      Pages: 435-442

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Osteoclastogenesis during mouse tooth germ development is mediated by receptor activator of NFK-B ligand (RANKL).2004

    • Author(s)
      Suzuki T, Suda N, Ohyama K
    • Journal Title

      J Bone Miner Metab 22・3

      Pages: 185-191

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Relation between formation and eruption of permanent mandibular buccal dentition and vertical height of the mandibular body.2004

    • Author(s)
      Takeshima T, Suda N, Ishikawa M, Takagi Y, Ohyama K.
    • Journal Title

      World Journal of Orthodontics 5・4

      Pages: 332-338

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Skeletal Characteristics and Treatment Outcome of Five Cases with Robin Sequence.

    • Author(s)
      Matsuda A, Suda N, Motohashi N, Tsuji M, Ohyama K.
    • Journal Title

      Angle Orthod 印刷中

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A case of oculo-auriculo vertebral spectrum with longterm and comprehensive treatment.

    • Author(s)
      Suda N, Watanbe M, Ohyama K
    • Journal Title

      World Journal of Orthodontics 印刷中

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A case of amelogenesis imperfecta, cleft lip and palate and polycystic kidney disease.

    • Author(s)
      Suda N, Kitahara Y, Ohyama K
    • Journal Title

      Orthod Craniofac Res 印刷中

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Orthodontic treatment in a case of Van der Woude syndrome.

    • Author(s)
      Suda N, Takada J, Ohyama K.
    • Journal Title

      Am J Orthod Dentofacial Orthop 印刷中

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A in situ hybridization study of Runx2, osterix and Sox 9 at the onset of condylar cartilage formation of fetal mouse mandible

    • Author(s)
      Shibata S, Suda N, Suzuki S, Yamashita Y
    • Journal Title

      J Anatomy 印刷中

    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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