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2011 Fiscal Year Final Research Report

Histological examination about the role of Runx2 in tertiary dentin formation

Research Project

  • PDF
Project/Area Number 21592336
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Morphological basic dentistry
Research InstitutionNagasaki University

Principal Investigator

MIYAZAKI Toshihiro  長崎大学, 大学院・医歯薬学総合研究科, 助教 (10174161)

Co-Investigator(Kenkyū-buntansha) BABA Tomomi  長崎大学, 大学院・医歯薬学総合研究科, 助教 (60189727)
Co-Investigator(Renkei-kenkyūsha) KOMORI Toshihisa  長崎大学, 大学院・医歯薬学総合研究科, 教授 (00252677)
Project Period (FY) 2009 – 2011
KeywordsRunx2 / 歯 / 第三象牙質 / 象牙芽細胞 / 分化 / 組織 / 組織化学
Research Abstract

The aim of this study is to clarify the role of Runx2, which is an essential transcription factor for osteoblast differentiation, in tertiary dentin formation. We examined tertiary dentin of human teeth, and reparative dentin that was experimentally formed in mouse molars, and have immunohistochemically demonstrated that Runx2 was expressed in the formative cells of tertiary dentin, and osteopontin and osteocalcin, which were highly present in bone tissue, were also expressed in tertiary dentin. Thus, it was suggested that Runx2 plays a role in tertiary dentin formation.

  • Research Products

    (14 results)

All 2011 2010 2009

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (9 results)

  • [Journal Article] Overexpression of Bcl2 in osteoblasts inhibits osteoblast differentiation and induces osteocyte apoptosis2011

    • Author(s)
      Moriishi T, Maruyama Z, Fukuyama R, Ito M, Miyazaki T, Kitaura H, Ohnishi H, Furuichi T, Kawai Y, Masuyama R, Komori H, Takada K, Kawaguchi H, Komori T
    • Journal Title

      PLoS One

      Volume: 6(11) Pages: e27487

    • Peer Reviewed
  • [Journal Article] Comparative morphology of the osteocyte lacunocanalicular system in various vertebrates2011

    • Author(s)
      Cao L, Moriishi T, Miyazaki T, Iimura T, Hamagaki M, Nakane A, Tamamura Y, Komori T, Yamaguchi A
    • Journal Title

      J Bone Miner Metab

      Volume: 29(6) Pages: 662-7

    • Peer Reviewed
  • [Journal Article] High extracellular Ca2+ stimulates Ca2+-activated Cl-currents in frog parathyroid cells through the mediation of arachidonic acid cascade2011

    • Author(s)
      Okada Y, Imendra KG, Miyazaki T, Hotokezaka H, Fujiyama R, Toda K
    • Journal Title

      PLoS One

      Volume: 6(4) Pages: e19158

    • Peer Reviewed
  • [Journal Article] Effects of fluoride intake on orthodontic tooth movement and orthodontically induced root resorption2011

    • Author(s)
      Gonzales C, Hotokezaka H, Karadeniz EI, Miyazaki T, Kobayashi E, Darendeliler MA, Yoshida N
    • Journal Title

      Am J Orthod Dentofacial Orthop

      Volume: 139(2) Pages: 196-205

    • Peer Reviewed
  • [Journal Article] Ultrastructural analysis of osteoblasts, osteocytes and odontoblasts in Runx2 transgenic mice2010

    • Author(s)
      Miyazaki T, Moriishi T, Izumi S, Baba T, Komori, T
    • Journal Title

      J Electr Microsc Technol Med Biol

      Volume: 23(2) Pages: 50

  • [Presentation] cfm1, 2はマウス椎間板の発達維持に必須である2011

    • Author(s)
      水橋孝治, 金本隆司, 金本隆司, 大森義裕, 森石武史, 宮崎敏博, 相沢慎一, 小守壽文, 古川貴久
    • Organizer
      第34回日本分子生物学会
    • Place of Presentation
      横浜
    • Year and Date
      2011-12-13
  • [Presentation] カエル味覚円盤ロッド型細胞のセシウム透過性カリウムチャネル2011

    • Author(s)
      岡田幸雄, 宮崎敏博, 藤山理恵, 戸田一雄
    • Organizer
      日本味と匂学会第45回大会
    • Place of Presentation
      石川
    • Year and Date
      2011-10-07
  • [Presentation] 骨芽細胞に発現するアクアポリン2011

    • Author(s)
      馬場友巳, 宮崎敏博, 達聖月, 根本優子, 根本孝幸
    • Organizer
      第53回歯科基礎医学会
    • Place of Presentation
      岐阜
    • Year and Date
      2011-10-02
  • [Presentation] カエル味蕾ウィング型(Ib)細胞の不飽和脂肪酸誘発電流の特性2011

    • Author(s)
      岡田幸雄, 宮崎敏博, 佛坂斉祉, 藤山理恵, 戸田一雄
    • Organizer
      第88回日本生理学会大会
    • Place of Presentation
      横浜
    • Year and Date
      2011-03-28
  • [Presentation] カエル味蕾ウィング型(Ib)細胞の不飽和脂肪酸誘発電流の特性2010

    • Author(s)
      岡田幸雄, 宮崎敏博, 佛坂斉祉, 藤山理恵, 戸田一雄
    • Organizer
      第61回西日本生理学会
    • Place of Presentation
      長崎
    • Year and Date
      2010-10-15
  • [Presentation] カエル副甲状腺のアラキドン酸誘発電流2010

    • Author(s)
      岡田幸雄, 宮崎敏博, 佛坂斉祉, 藤山理恵, 戸田一雄
    • Organizer
      日本動物学会第81回大会
    • Place of Presentation
      東京
    • Year and Date
      2010-09-24
  • [Presentation] スタチンによる脂肪細胞分化抑制経路とRANKL発現抑制経路の比較2010

    • Author(s)
      馬場友巳, 根本優子, 宮崎敏博, 根本孝幸
    • Organizer
      第52回歯科基礎医学会
    • Place of Presentation
      東京
    • Year and Date
      2010-09-22
  • [Presentation] Ultrastructural analysis of osteoblasts, osteocytes and odontoblasts in Runx2 transgenic mice2009

    • Author(s)
      Miyazaki T, Moriishi T, Izumi S, Baba T, Komori, T
    • Organizer
      6th international Symposium on Electron Microscopy in Medicine and Biology
    • Place of Presentation
      Kobe
    • Year and Date
      2009-09-18
  • [Presentation] 骨芽細胞特異的Bcl-2過剰発現マウスでは骨芽細胞の分化抑制と骨細胞死が起こる2009

    • Author(s)
      森石武史, 宮崎敏博, 和泉伸一, 小守壽文
    • Organizer
      第51回歯科基礎医学会学術集会
    • Place of Presentation
      新潟
    • Year and Date
      2009-09-09

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Published: 2013-07-31  

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