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Induction of novel antioxidant capability on titanium implant

Research Project

Project/Area Number 16K11646
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Dental engineering/Regenerative dentistry
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Ueno Takeshi  東京医科歯科大学, 大学院医歯学総合研究科, 講師 (30359674)

Project Period (FY) 2016-10-21 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsインプラント / 活性酸素種 / 酸化ストレス / 抗酸化 / 骨芽細胞 / チタン
Outline of Final Research Achievements

Regarding the relationship between the surface of biomaterials and cells, there are few studies that have evaluated the affinity of intracellular reactive oxygen species (ROS). The primary purpose of this study was to evaluate the biocompatibility of titanium implants from ROS. As a result, it was shown that ROS was also generated in the cells cultured on ordinary titanium implant. If this ROS is excessively generated, it becomes an oxidative stress and reduces the bone formation ability, so it is necessary to develop a titanium treatment method that is less stressful to cells. Past chemical analysis of the titanium surface revealed that many organic molecules were detected from implant surfaces. The present study also proved that the removal of this organic substance made titanium more biocompatible.

Academic Significance and Societal Importance of the Research Achievements

チタンは元々生体親和性の高い材料であることが知られているが、実際の骨-チタン接触率は、長期の治癒時間を待っても30-60%程度であることが報告されており、この生体の反応に幅があることについての要因を提示した研究は少ない。本研究はまずチタンの生体親和性の新しい評価方法を提案した。加えて、チタン表面の有機物を除去することにより、骨芽細胞内の活性酸素種の発生が低下することを示し、骨形成能が増加することを示した。この結果は、インプラント表面の性能を、現状よりも向上させられる可能性があることを示唆しており、今後他の物理化学的因子を検討することで、表面処理方法の最適化への発展に寄与できると考えられる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017 2016

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Inverse response of osteoblasts and fibroblasts to growth on carbon-deposited titanium surfaces2018

    • Author(s)
      Yoshihara Chie、Ueno Takeshi、Chen Peng、Tsutsumi Yusuke、Hanawa Takao、Wakabayashi Noriyuki
    • Journal Title

      Journal of Biomedical Materials Research Part B: Applied Biomaterials

      Volume: 106 Issue: 5 Pages: 1869-1877

    • DOI

      10.1002/jbm.b.33996

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of corrosion resistance of implant-use Ti-Zr binary alloys with a range of compositions2018

    • Author(s)
      Akimoto T, Ueno T, Tsutsumi Y, Doi H, Hanawa T, Wakabayashi N
    • Journal Title

      Journal of Biomedical Materials Research part B Applied Biomaterials

      Volume: 106 Pages: 73-79

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Novel antioxidant capability of titanium induced by UV light treatment.2016

    • Author(s)
      Ueno T, Ikeda T, Tsukimura N, Ishijima M, Minamikawa H, Sugita Y, Yamada M, Wakabayashi N, Ogawa T.
    • Journal Title

      Biomaterials.

      Volume: 108 Pages: 177-186

    • DOI

      10.1016/j.biomaterials.2016.08.050

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Titanium-Zirconium Binary Alloy as Dental Implant Material: Analysis of the Influence of Compositional Change on Mechanical Properties and in vitro Biological Response2016

    • Author(s)
      Lee T, Ueno T, Nomura N , Wakabayashi N, Hanawa T
    • Journal Title

      International Journal of Maxillofacial Implants

      Volume: 31 Pages: 547-54

    • DOI

      10.11607/jomi.4349

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Increased cellular attachment on electropositive titanium surfaces2019

    • Author(s)
      Saito H, Ueno T, Isoshima K, Arai Y, Toyoshima Y, Chen P, Hanawa T, Wakabayashi N
    • Organizer
      The 8th international conference on mechanics of biomaterials and tissues
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Surface characterization and bioactivity of Ti-Zr alloy with compositional change.2018

    • Author(s)
      Tianbo Tan, Takeshi Ueno, Yuki Arai, Keigo Isoshima, Hiroki Saito, Yusuke Tsutsumi, Hisashi Doi, Takao Hanawa, Noriyuki Wakabayashi.
    • Organizer
      The 96th general session & exibition of the IADR
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Increased extracellular proteins adsorption on electropositive titanium surfaces.2018

    • Author(s)
      Keigo Isoshima, Takeshi Ueno, Yuki Arai,Hiroki Saito, Tianbo Tan, Peng Chen, Yusuke Tsutsumi, Takao Hanawa, Noriyuki Wakabayashi.
    • Organizer
      The 96th general session & exibition of the IADR
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] UV pretreatment of titanium decreases intracellular ROS production in osteoblasts2017

    • Author(s)
      Takeshi Ueno, Noriyuki Wakabayashi, Takahiro Ogawa
    • Organizer
      The 7th international conference on mechanics of biomaterials and tissues
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Increased cellular attachment on electropositive titanium surfaces2017

    • Author(s)
      Isoshima Keigo, Ueno Takeshi, Hiroki Saito, Tsutsumi Yusuke, Peng Chen, Hisashi Doi, Hanawa Takao, Wakabayashi Noriyuki
    • Organizer
      The 7th international conference on mechanics of biomaterials and tissues
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-10-24   Modified: 2021-02-19  

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