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Regulatory mechanism of hedgehog in osteogenic differentiation of human dental pulp stem cells

Research Project

Project/Area Number 19K10189
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57040:Regenerative dentistry and dental engineering-related
Research InstitutionTokyo Medical University

Principal Investigator

Chikazu Daichi  東京医科大学, 医学部, 主任教授 (30343122)

Co-Investigator(Kenkyū-buntansha) 古賀 陽子  東京医科大学, 医学部, 兼任助教 (10392408)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsヒト歯髄幹細胞 / 骨芽細胞 / ヘッジホッグ関連遺伝子 / DPSCs / VCAM1 / GFPT2 / ヘッジホック関連遺伝子
Outline of Research at the Start

本研究は、ヒト歯髄幹細胞を用いた骨再生医療の実現化に向けて骨組織や歯髄、象牙質発生の基礎的知見を解析し、その組織形成過程の分子メカニズムを分化・組織誘導刺激に応用することで新規骨再生法開発の礎を築くことを目的とする。そのために応募者らは、組織発生ならびに骨再生療法で重要な鍵を握る分子と期待されているヘッジホッグと、その転写メディエーターであるGliファミリーに着目した。ヒト歯髄幹細胞の骨分化におけるGliファミリーの転写メカニズムを、バイオインフォマティクスを駆使した網羅的な解析の後にin vitro、in vivoの両面から検証を行い、その遺伝子発現制御システムとエピゲノムを解明する。

Outline of Final Research Achievements

DPSCs have high proliferative and multilineage differentiation potential. However, several studies have indicated that there are individual differences in the potential for osteogenic differentiation, and the factors determining these differences are unknown. The purpose of this study was to designate the genes responsible for the individual differences in DPSCs. We focused on hedgehog associate genes and divided DPSCs into high and low osteogenic differentiation ability groups (HG or LG), and compared the gene expression patterns using RNA-seq. Among these patterns, VCAM1 and GFPT2 were significantly expressed in the HG than in the LG. These results indicated that VCAM1-mediated Ras-MEK-Erk and PI3K/Akt pathways and GFPT2-mediated HBP signaling influences osteogenic differentiation of DPSCs. These findings indicate that DPSCs that highly express VCAM1 and GFPT2 have a high capacity for osteogenic differentiation.

Academic Significance and Societal Importance of the Research Achievements

ヒト歯髄幹細胞(DPSCs)は高い増殖能と高い多分化能を有する優れた細胞資源である。DPSCsの個体差の原因を解明することは、DPSCsを用いた再生細胞治療の適応範囲を広げることにつながる。本研究では、DPSCsの骨形成分化能の高低を比較し、VCAM1とGFPT2がDPSCsの骨形成分化能を予測するための候補遺伝子であることを示した。未分化状態のDPSCsにおけるVCAM1とGFPT2の発現量を事前に調べることは、骨再生のための同種細胞移植のドナーの選択基準の設定に有用であると考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] VCAM-1 and GFPT-2: Predictive markers of osteoblast differentiation in human dental pulp stem cells2022

    • Author(s)
      Hatori, A., Fujii, Y., Kawase-Koga, Y., Ogasawara, T., Chikira, J., Minami, S., Yamakawa, D. & Chikazu, D
    • Journal Title

      Stem Cell Reviews and Reports

      Volume: -

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bone Regeneration Potential of Human Dental Pulp Stem Cells Derived from Elderly Patients and Osteo-Induced by a Helioxanthin Derivative2020

    • Author(s)
      M. Sato, Y. Kawase-Koga, D. Yamakawa, Y. Fujii, D. Chikazu
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 20 Pages: 7731-7745

    • DOI

      10.3390/ijms21207731

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Helioxanthin Derivative-Treated Human Dental Pulp Stem Cells on Fracture Healing2020

    • Author(s)
      D. Yamakawa, Y. Kawase-Koga, Y. Fujii, Y. Kanno, M. Sato, S. Ohba, Y. Kitaura, M. Kashiwagi, D. Chikazu
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 23 Pages: 9158-9171

    • DOI

      10.3390/ijms21239158

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 酸化ストレスのシグナル分子8-ニトロ-cGMPによる骨代謝調節2021

    • Author(s)
      金子児太郎、宮本洋一、杉崎リサ、上條竜太郎、近津大地
    • Organizer
      第75回NPO法人日本口腔科学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 骨折治癒におけるヘリオキサンチン誘導体を用いたヒト歯髄幹細胞の効果2021

    • Author(s)
      山川 樹、古賀陽子、藤居泰行、菅野勇樹、佐藤麻梨香、近津大地
    • Organizer
      第75回NPO法人日本口腔科学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エラスターゼによるオステオプロテゲリンの分解と炎症性骨破壊との関連2021

    • Author(s)
      杉崎リサ、金子児太郎、近津大地
    • Organizer
      第25回日本顎顔面インプラント学会総会・学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 好中球エラスターゼはオステオプロテゲリンを分解し破骨細胞分化を促進する2021

    • Author(s)
      杉崎リサ、宮本洋一、金子児太郎、上條竜太郎、近津大地
    • Organizer
      第75回NPO法人日本口腔科学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新規内因性シグナル分子8-nitro-cGMPは炎症において骨吸収を促進させる2021

    • Author(s)
      金子児太郎、杉崎リサ、近津大地
    • Organizer
      25回日本顎顔面インプラント学会総会・学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 活性イオウ分子種はカルシウムシグナルを介して破骨細胞分化を促進する2021

    • Author(s)
      杉崎リサ、宮本洋一、赤池孝章、近津大地、上條竜太郎
    • Organizer
      第34回日本酸化ストレス学会関東支部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Human dental pulp stem cells with small-molecular compound promote highly osteogenesis in vitro2019

    • Author(s)
      D. Yamakawa, Y. Kawase-Koga, Y. Fujii, Y. Kanno, M. Sato, D. Chikazu
    • Organizer
      The 2019 New York Stem Cell Foundation Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Chondrogenic differrenntation by human dental pulp stem cells using a thienoindazole derivative and cell-sheet technology2019

    • Author(s)
      Y. Kanno, D Yamakawa, Y Fujii, Y. Kawase-Koga, D. Chikazu
    • Organizer
      The 2019 New York Stem Cell Foundation Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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