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Elucidation of egulatory mechanism of bone metabolism by lysine deacylase SIRT7.

Research Project

Project/Area Number 17K11014
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthopaedic surgery
Research InstitutionKumamoto University

Principal Investigator

Yoshizawa Tatsuya  熊本大学, 大学院生命科学研究部(医), 准教授 (40313530)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords骨組織 / 骨粗鬆症 / サーチュイン / SIRT7 / 老化 / ロコモティブシンドローム / アシル化 / 骨芽細胞 / Osterix / 骨代謝
Outline of Final Research Achievements

We discovered that the SIRT7, which is the member of Sirtuins (SIRT1-7 in mammals) regulating a wide variety of biological process, is important for bone formation, and have succeeded in finding a new mechanism which activates functions of Osterix transcription factor essential for bone formation. Furthermore, we found that SIRT7 in bone decreased with age. It is expected that the “SIRT7-regulated Osterix activating pathway” will be a new therapeutic drug target to treat decreased osteogenesis and osteoporosis.

Academic Significance and Societal Importance of the Research Achievements

骨粗鬆症では骨吸収を抑える薬剤に比べて骨形成を促進させる薬剤は限られており、骨を再生させる治療薬の開発が望まれている。我々の研究結果によると、老化した場合など SIRT7 が十分に働かない状況では、Osterix の働きが低いために骨を作ることが損なわれ、骨形成低下に伴う骨粗鬆症が引き起こされると考えられた。今後、SIRT7-Osterix の調節経路が骨形成低下に伴う骨粗鬆症の新たな治療薬開発のための標的となることが期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 3 results)

  • [Int'l Joint Research] Max-Planck-Institute(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Max-Planck-Institute(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Journal Article] SIRT7 has a critical role in bone formation by regulating lysine acylation of SP7/Osterix2018

    • Author(s)
      Fukuda Masatoshi、Yoshizawa Tatsuya et al.
    • Journal Title

      Nature Communications

      Volume: 9 Issue: 1 Pages: 2833-2833

    • DOI

      10.1038/s41467-018-05187-4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 脱アシル化酵素SIRT7によるエネルギー代謝制御2018

    • Author(s)
      吉澤達也
    • Organizer
      第72回日本栄養・食糧学会大会 シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] サーチュインによる骨代謝制御2018

    • Author(s)
      吉澤達也
    • Organizer
      日本薬学会第138年会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 脱アシル化酵素SIRT7によるOsterixの転写活性化は骨形成に重要である2017

    • Author(s)
      吉澤達也
    • Organizer
      第90回日本内分泌学会学術総会
    • Related Report
      2017 Research-status Report
  • [Presentation] SIRT7による多様な代謝制御2017

    • Author(s)
      吉澤達也
    • Organizer
      ConBio2017 ワークショップ:核内受容体が制御する多彩な生命現象
    • Related Report
      2017 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2020-03-30  

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