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Development of a three dimensional scaffold with micropatterned structure for vascularized large bone regeneration

Research Project

Project/Area Number 18K19945
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionNational Institute for Materials Science

Principal Investigator

KAWAZOE Naoki  国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主席研究員 (90314848)

Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords骨再生 / 血管新生 / マイクロパターン / 足場材料
Outline of Final Research Achievements

Angiogenesis is supposed to play an important role in the reconstruction of large bone defects. Here, we prepared dexamethasone-loaded calcium phosphate nanoparticles/collagen composite scaffolds with different types of concave microgrooves for simultaneous promotion of angiogenesis and osteogenesis. The microgrooves were designed to guide the assembly of HUVECs into well-aligned structures, leading to the rapid formation of new blood vessels. The scaffolds were co-cultured with HUVECs and hMSCs, and then subcutaneously implanted in mice. The result showed that more blood vessels and newly formed bone were observed in the microgrooved composite scaffolds than in the scaffold without microgrooves. The concave width of 290±21 μm and the convex ridge width of 352±23 μm had the highest promotive effect on angiogenesis and osteogenesis of all the tested conditions. The microgrooved composite scaffolds will be useful for the repair of large bone defects.

Academic Significance and Societal Importance of the Research Achievements

外傷や骨腫瘍切除によって生じた大きな骨欠損を治療するために、生体組織工学による再生医療が有望と考えられている。骨損傷が治癒する際には、血管新生が重要な役割を果たすことが知られているが、これまで、血管新生因子を導入した足場材料がいくつか報告されている。しかし、血管新生因子は空間的にランダムに導入されたため、血管新生の効果は十分ではなかった。本研究は、足場材料によって血管網の形成を制御し、骨再生への影響を評価した。血管網の形態をパターン化により工学的に制御することを特長としている。本研究で得られた知見は、これまでの方法では治癒しない大きな骨欠損の治療法の開発へとつながると期待される。

Report

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

    (13 results)

All 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Book (2 results)

  • [Journal Article] 再生医療用多孔質材料の設計・加工,および目指すべき機能2019

    • Author(s)
      川添 直輝, 陳 国平
    • Journal Title

      Pharm stage

      Volume: 19巻 Pages: 45-49

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Preparation of Polymeric Porous Scaffolds for Regenerative Medicine2018

    • Author(s)
      陳 国平、川添 直輝
    • Journal Title

      MEMBRANE

      Volume: 43 Issue: 5 Pages: 215-223

    • DOI

      10.5360/membrane.43.215

    • NAID

      130007495075

    • ISSN
      0385-1036, 1884-6440
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Promoted Angiogenesis and Osteogenesis by Dexamethasone-loaded Calcium Phosphate Nanoparticles/Collagen Composite Scaffolds with Microgroove Networks2018

    • Author(s)
      Ying Chen,Chen Shangwu,Naoki Kawazoe,Guoping Chen
    • Journal Title

      Scientific Reports

      Volume: VOL 8 Issue: 1

    • DOI

      10.1038/s41598-018-32495-y

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Regulation of mesenchymal stem cell functions by micro?nano hybrid patterned surfaces2018

    • Author(s)
      YANGYingjun,Xinlong Wang,Tsung-Chun Huang,Xiaohong Hu,Naoki Kawazoe,Wei-Bor Tsai,Yingnan Yang,Guoping Chen
    • Journal Title

      Journal of Materials Chemistry B

      Volume: VOL 6 Issue: 34 Pages: 5424-5434

    • DOI

      10.1039/c8tb01621f

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 多孔質足場材料の設計・開発において考慮すべき要件2018

    • Author(s)
      川添 直輝、陳 国平
    • Journal Title

      研究開発リーダー

      Volume: 15巻 Pages: 9-12

    • Related Report
      2018 Research-status Report
  • [Presentation] 骨誘導と血管新生を促進するマイクロパターン化多孔質足場材料の開発2020

    • Author(s)
      川添 直輝, チェン イン, 陳 国平
    • Organizer
      第19回日本再生医療学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Gene Transfection into Mesenchymal Stem Cells on Micropatterned Surfaces2019

    • Author(s)
      Naoki Kawazoe, Yingjun Yang, Xinlong Wang, Guoping Chen
    • Organizer
      TERMIS-AP
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 幹細胞の機能を制御するマイクロ-ナノ複合パターン化表面の構築2019

    • Author(s)
      川添 直輝, ヤン インジュン, 陳 国平
    • Organizer
      第68回高分子討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dexamethasone-Loaded Composite Scaffolds for Osteogenic Differentiation of Human Bone Marrow-Derived Mesenchymal Stem Cells2019

    • Author(s)
      Guoping Chen, Ying Chen, Naoki Kawazoe
    • Organizer
      TERMIS-AP 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Cellular nanomechanics of stem cells and cancer cells confined to micropatterned surfaces2018

    • Author(s)
      川添 直輝、王 新龍、陳 国平
    • Organizer
      BIOMMEDD’ 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Cellular Mechanics of Tumour Microenvironment Cells on Micropatterned Surfaces2018

    • Author(s)
      川添 直輝、王 新龍、陳 国平
    • Organizer
      2018 TERMIS World Congress
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 「多孔質材料の構造制御や生理活性物質の複合化による細胞機能制御」蓜島由二監修『無機/有機材料の表面処理・改質による生体適合性付与』2019

    • Author(s)
      川添直輝、陳国平
    • Total Pages
      315
    • Publisher
      シーエムシー出版
    • ISBN
      9784781314150
    • Related Report
      2019 Annual Research Report
  • [Book] 「関軟骨再生を促進する複合多孔質足場材料の開発」佐藤正人監修『軟骨再生を促進する複合多孔質足場材料の開発』2019

    • Author(s)
      川添直輝、陳国平
    • Total Pages
      254
    • Publisher
      シーエムシー出版
    • ISBN
      9784781314860
    • Related Report
      2019 Annual Research Report

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Published: 2018-07-25   Modified: 2021-02-19  

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