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Elucidation of Reversible Molecular Mechanism of Peripheral Circadian Rhythm at the Interface of Biomaterials.

Research Project

Project/Area Number 17K11819
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Dental engineering/Regenerative dentistry
Research InstitutionFukuoka Dental College

Principal Investigator

Morinaga Kenzo  福岡歯科大学, 口腔歯学部, 講師 (10509061)

Co-Investigator(Kenkyū-buntansha) 城戸 寛史  福岡歯科大学, 口腔歯学部, 教授 (90169897)
渡津 章  国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (90358375)
寺岡 啓  国立研究開発法人産業技術総合研究所, 情報・人間工学領域, 主任研究員 (00357542)
園田 勉  国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (80357334)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsNPAS2 / 時計遺伝子 / 概日リズム / オッセオインテグレーション / インプラント / 生体材料 / 末梢概日リズム
Outline of Final Research Achievements

This study aimed to elucidate the molecular mechanism of osseointegration through determining the role of Npas2. The implant push-out test and bone-to-implant contact measurements demonstrated the establishment of osseointegration in 3weeks. By contrast, in Npas2 functional knockout(KO) mice, the implant push-out value measured for SLA surface Ti implant was significantly decreased.
Our data provides the first evidence that peripheral clock gene component Npas2 plays a role in facilitating the enhanced osseointegration through neuroskeletal regulatory pathways induced by BMSC in contact with rough surface Ti implant.

Academic Significance and Societal Importance of the Research Achievements

本研究結果より,オッセオインテグレーションの獲得あるいは維持の過程で,NPAS2という時計遺伝子がオッセオインテグレーションに強い影響を持つ可能性を発見した.インプラント表面の化学的性質や形態などのマテリアル由来の調節因子とは違って,概日リズムは宿主組織から由来するため,その機構の役割はオッセオインテグレーションの長期的維持にまで直接及ぶ.本研究をさらに進めていくことで,長期的なオッセオインテグレーションの成功や失敗に直接影響を与える分子メカニズムを確立することが可能と予想される.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (3 results)

All 2019 2018

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

  • [Journal Article] Neuronal PAS domain 2 (Npas2) facilitated osseointegration of titanium implant with rough surface through a neuroskeletal mechanism.2019

    • Author(s)
      Morinaga K, Sasaki H, Park S, Hokugo A, Okawa H, Tahara Y, Colwell CS, Nishimura I.
    • Journal Title

      Biomaterials.

      Volume: 192 Pages: 62-74

    • DOI

      10.1016/j.biomaterials.2018.11.003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] インプラント体の粗面構造に誘発されるNPAS2時計遺伝子はオッセオインテグレーションを促進する2018

    • Author(s)
      森永健三,北郷明成,佐々木穂高,城戸寛史,西村一郎
    • Organizer
      第48回公益社団法人日本口腔インプラント学会学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Biomaterials-induced neuronal PAS domain 2 (Npas2) in bone marrow environment facilitated enhanced osseointegration of titanium implant with complex surface modification2018

    • Author(s)
      Kenzo Morinaga, Sil Park, Akishige Hokugo, Hodaka Sasaki, Hirofumi Kido, Ichiro Nishimura
    • Organizer
      Academy of Osseointegration 2018 Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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