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骨格形成細胞の形態・運動・分化におけるシグナル伝達機構の解明

Research Project

Project/Area Number 15790807
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Orthopaedic surgery
Research InstitutionSetsunan University

Principal Investigator

藤田 隆司  摂南大学, 薬学部, 助手 (30319793)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2004: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2003: ¥2,900,000 (Direct Cost: ¥2,900,000)
KeywordsRunx2 / Runx3 / osteoblast / chondrocyte / differentiation / 骨芽細胞・軟骨細胞 / シグナル / 運動 / 形態 / 分化
Research Abstract

Runx2は、1)間葉系細胞から軟骨・骨芽細胞系列へのコミットメント、2)軟骨細胞の増殖・分化、3)骨芽細胞初期分化の過程で生理的に重要である。骨形成過程におけるRunx2のインシュリンシグナルとの共役について調べ、Runx2の上流及び下流でインシュリンシグナルが機能することを明らかにした。
本年度の予定では、Runx2の核内共役因子の同定まで行う予定であったが、昨年度の実験の最終的な確認作業等で一部のみしか行えなかった(投稿準備中)。
【研究成果】
1.Runx2 induces osteoblast and chondrocyte differentiation and enhances their migration by coupling with PI3K-Akt signaling. Fujita-T Azuma-Y, Fukuyama-R, Hattori-Y, Yoshida-CA, Koida-M, Ogita-K, and Komori-T, J Cell Biol 166(1),85-95,2004
2.Dexamethasone inhibits insulin-induced chondrogenesis of ATDC5 cells by preventing PI3K-Akt signaling and DNA binding of Runx2. Fujita-T, Fukuyama-R, Enomoto-H, and Komori-T. J Cell Biochem 93(2):374-383,2004.
3.Runx2 and Runx3 are essential for chondrocyte maturation, and Runx2 regulates limb growth through induction of Indian hedgehog. Yoshida-CA, Yamamoto-H, Furuichi-T, Ito-K, Inoue-K, Yamana-K, Zanma-A, Takada-K, Ito-Y, and Komori-T. Genes Dev 18(8),952-63,2004.

Report

(2 results)
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (4 results)

All 2004 Other

All Journal Article (3 results) Publications (1 results)

  • [Journal Article] Runx2 induces osteoblast and chondrocyte differentiation and enhances their migration by coupling with PI3K-Akt signaling.2004

    • Author(s)
      藤田隆司 他7名
    • Journal Title

      J Cell Biol 166(1)

      Pages: 85-95

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Dexamethasone inhibits insulin-induced chondrogenesis of ATDC5 cells preventing PI3K-Akt signaling and DNA binding of Runx2.2004

    • Author(s)
      藤田隆司 他3名
    • Journal Title

      J Cell Biochem 93(2):374-383,2004 93(2)

      Pages: 374-383

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Runx2 and Runx3 are essential for chondrocyte maturation, and Runx2 regulates limb growth through induction of Indian hedgehog.2004

    • Author(s)
      吉田カロリーナ 他10名、3番目
    • Journal Title

      Genes Dev 18(8),952-63 18(8)

      Pages: 952-963

    • Related Report
      2004 Annual Research Report
  • [Publications] 福山亮, 藤田隆司他5名: "Statins inhibit osteoblast migration by inhibiting Rac-Akt signaling."Biochem Biophys Res Commun. 315. 636-642 (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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