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The elucidation of transcriptional network controlling skeletal development by genome wide analysis

Research Project

Project/Area Number 19K22708
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionOsaka University

Principal Investigator

Hata Kenji  大阪大学, 歯学研究科, 准教授 (80444496)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords軟骨細胞 / クロマチン構造 / ヒストン修飾 / Sox9 / エピジェネティクス / 軟骨細胞分化 / 骨格形成
Outline of Research at the Start

顎顔面を含むヒトの骨格の大部分は、内軟骨性骨化と呼ばれる軟骨細胞が主体の骨化様式により形成される。そのため、骨格形成およびその疾患メカニズムの解明には、軟骨細胞の遺伝子発現を担う転写因子を同定しその制御機構を理解することが重要となる。本研究では、次世代シークエンサーを応用したゲノムワイド解析を駆使し、遺伝子発現の初期段階であるヒストン修飾からmRNA発現に至る階層的な統合オミクス解析を実施し、内軟骨性骨化に重要な新規転写因子とその遺伝子制御ネットワークを全ゲノムレベルで解明することに挑戦する。

Outline of Final Research Achievements

Chondrocytes play important roles during skeletal development. Accumulating evidence indicates that epigenetic regulation, such as histone modification and chromatin structure, is critical for gene expression. To understand the molecular mechanism of chondrocyte differentiation, we performed combination analysis of ChIP-seq and ATAC-seq using primary chondrocytes and identified chondrocyte specific enhancer regions. We have identified 31500 genomic regions as chondrocyte specific enhancer. Among them, we have identified chondrocyte specific enhancer for Sox9 and enhancer deletion mice showed the defects in endochondral bone formation. Moreover, peak-motif analysis identified several transcription factors involved in chondrocyte differentiation. Our findings would uncover novel transcriptional network controlling skeletal development.

Academic Significance and Societal Importance of the Research Achievements

本研究ではゲノム構造解析と遺伝子発現解析を統合的に行うことにより、DNAの塩基配列の変化ではなく、クロマチン構造の変化→ヒストン修飾→mRNA発現という階層的な遺伝子発現システムを体系的かつ網羅的にゲノムスケールで解明することが可能となった。生命計測技術の進歩と情報解析技術の進歩に伴って、様々な研究領域でゲノムワイド解析が応用され生命現象や疾患関連遺伝子の解明に貢献している。次世代シークエンサーを用いたゲノムワイド解析は今後の生命科学研究にとってますますその重要性を増すことが予測され、骨・軟骨研究における本研究の学術的意義は高い。

Report

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

    (8 results)

All 2021 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] Dmrt2 promotes transition of endochondral bone formation by linking Sox9 and Runx22021

    • Author(s)
      Ono Koichiro、Hata Kenji、Nakamura Eriko、Ishihara Shota、Kobayashi Sachi、Nakanishi Masako、Yoshida Michiko、Takahata Yoshifumi、Murakami Tomohiko、Takenoshita Seiichi、Komori Toshihisa、Nishimura Riko、Yoneda Toshiyuki
    • Journal Title

      Communications Biology

      Volume: 4 Issue: 1 Pages: 1-13

    • DOI

      10.1038/s42003-021-01848-1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular Mechanisms Involved in the Progression and Protection of Osteoarthritis.2020

    • Author(s)
      Takahata Y, Murakami T, Hata K, Nishimura R.
    • Journal Title

      Curr Mol Pharmacol

      Volume: 13 Issue: 2 Pages: 1-6

    • DOI

      10.2174/1874467213666200417122933

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] G protein subunit β1 is an important mediator of the late stage of endochondral ossification2020

    • Author(s)
      Ruengsinpinya Lerdluck、Murakami Tomohiko、Nakamura Eriko、Takahata Yoshifumi、Hata Kenji、Nakaminami Yuri、Okae Hiroaki、Nishimura Riko
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 533 Issue: 1 Pages: 90-96

    • DOI

      10.1016/j.bbrc.2020.08.119

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of interleukin-1 and inflammasomes in oral disease2020

    • Author(s)
      Murakami Tomohiko、Takahata Yoshifumi、Hata Kenji、Nishimura Riko
    • Journal Title

      Journal of Oral Biosciences

      Volume: 62 Issue: 3 Pages: 242-248

    • DOI

      10.1016/j.job.2020.07.003

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of Signal Transduction Pathways and Transcription Factors in Cartilage and Joint Diseases2020

    • Author(s)
      Nishimura Riko、Hata Kenji、Takahata Yoshifumi、Murakami Tomohiko、Nakamura Eriko、Ohkawa Maki、Ruengsinpinya Lerdluck
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 4 Pages: 1340-1340

    • DOI

      10.3390/ijms21041340

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 軟骨細胞分化のエピジェネティクス機構2021

    • Author(s)
      波多賢二
    • Organizer
      第33回日本軟骨代謝学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 軟骨細胞分化のエピジェネティクス2020

    • Author(s)
      波多賢二
    • Organizer
      日本軟骨代謝学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Epigenetic Regulation of Chondrocyte Differentiation2019

    • Author(s)
      Kenji Hata
    • Organizer
      Japan Bone Academy
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2019-07-04   Modified: 2022-01-27  

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