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Strategy for spatially-controlled tissue regeneration

Research Project

Project/Area Number 19KK0278
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionHiroshima University

Principal Investigator

Kato Koichi  広島大学, 医系科学研究科(歯), 教授 (50283875)

Co-Investigator(Kenkyū-buntansha) 谷本 幸太郎  広島大学, 医系科学研究科(歯), 教授 (20322240)
平田 伊佐雄  広島大学, 医系科学研究科(歯), 助教 (40346507)
吉見 友希  広島大学, 病院(歯), 病院助教 (50707081)
Project Period (FY) 2019-10-07 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords組織工学 / 空間制御 / 細胞成長因子 / キメラタンパク質 / 遺伝子組換え / 3次元造形 / 三次元造形 / 関節軟骨 / 間葉系幹細胞 / 生体分解性高分子 / 再生医療 / タンパク質工学 / スキャホールド / ゾーン構造
Outline of Research at the Start

組織工学の技術を活用した損傷組織の再生において、空間特異的な生体組織構造を設計するための原理の追求を目的とする。とくに、関節軟骨の再生に焦点を当て、天然組織にみられる秩序構造(ゾーン構造)を再現するための設計原理を追求する。そのため、海外共同研究者が開発してきた独自技術(高分子融液を用いた三次元造形技術)を活用して高度に構造制御された多孔質足場材料を設計するとともに、日本側研究者が開発してきた独自技術(機能性タンパク質の局所的な徐放制御技術)を融合して、組織再生過程を構造と機能の両面から高度に制御し、天然組織に類似したゾーン構造をもつ関節軟骨移植片を体外で創り出す方法の確立を目指す。

Outline of Final Research Achievements

Based on the hypothesis that it would be effective to use scaffolds in which multiple types of protein factors that direct cell differentiation are incorporated in a spatially specific manner, to reproduce spatially specific biological tissue structures by tissue engineering, attempts were made to synthesize and functionally evaluate protein factors fused with a scaffold-binding peptide. As a result, we gained basic knowledge about the interactions between the protein factors and various polymeric surfaces, and the effects of such surfaces on mesenchymal stem cells. Furthermore, we tried to introduce 3D printing technology that uses polymer melts as a ink and optimized the conditions for 3-dimensionally printing biodegradable porous scaffolds.

Academic Significance and Societal Importance of the Research Achievements

本共同研究では、それぞれが有する技術を融合させ、組織再生過程の組織内における生物学的条件と構造的条件を最適化しようとするものであり、その成果は、へテロ構造をもつ組織の再生に新たな展望を生み出すものとなる。また、ヘテロ組織の再生技術は臨床的意義も大きい。例えば、重度の関節軟骨変性には軟骨の再生治療が効果的であると考えられている。しかしながら、とくに摺動面の潤滑に問題があり、関節としての機能の点で決して満足できる状況ではない。本研究が出発点となって、将来、顎関節軟骨の特徴である構造的・生化学的に異なる細胞層で構成されたゾーン構造が再現できるようになれば、その恩恵は計り知れない。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Book (2 results)

  • [Int'l Joint Research] University of Wuerzburg(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University Hospital of Wuerzburg(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] The University Hospital of Wuerzburg(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ヴュルツブルグ大学(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Recombinant protein synthesis for nanomaterial assembly: Technical overview2022

    • Author(s)
      Ayana Nakano, Koichi Kato
    • Journal Title

      Bull. Soc. Nano Sci. Technol.

      Volume: 20 Pages: 31-37

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of a peptide motif designed for protein tethering to polymer surfaces2021

    • Author(s)
      Ayana Nakano, Isao Hirata, Binh Vinh Pham, Ajay Shakya, Kotaro Tanimoto, Koichi Kato
    • Journal Title

      J. Biomater. Sci., Polym. Ed.

      Volume: 32 Issue: 1 Pages: 76-92

    • DOI

      10.1080/09205063.2020.1816870

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Structure and function of engineered stromal cell-derived factor-1α2023

    • Author(s)
      Fumika Abe, Ayana Nakano, Isao Hirata, Kotaro Tanimoto, Koichi Kato
    • Organizer
      第56回広島大学歯学会総会・学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Bioinspired Surfaces Designed for Stem Cell Expansion2023

    • Author(s)
      Koichi Kato
    • Organizer
      European Materials Research Society 2023 Spring Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A peptide motif for creating bioactive polymer surfaces2021

    • Author(s)
      Ayana Nakano, Isao Hirata, Binh Vinh Pham, Ajay Shakya, Kotaro Tanimoto, Koichi Kato
    • Organizer
      8th Japan-China Symposium on Nanomedicine
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Tandem repeats of lysine and leucine as a peptide tag for protein immobilization2021

    • Author(s)
      Ayana Nakano, Isao Hirata, Binh Vinh Pham, Ajay Shakya, Kotaro Tanimoto, Koichi Kato
    • Organizer
      6th Joint Scientific Meeting in Dentistry
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Bioengineering challenges toward regenerative dentistry2021

    • Author(s)
      Koichi Kato
    • Organizer
      6th Dental Materials Conference and Exhibition, Indonesia
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] A peptide motif for creating bioactive polymer surfaces2021

    • Author(s)
      Ayana Nakano, Isao Hirata, Binh Vinh Pham, Ajay Shakya, Kotaro Tanimoto, Koichi Kato
    • Organizer
      2021 6th TERMIS World Congress
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Book] Nanomedicine, Chapter 16 Regenerative nanotechnology: Engineered surfaces for stem cell production (pp. 605-622)2023

    • Author(s)
      Ayana Nakano, Koichi Kato
    • Total Pages
      895
    • Publisher
      Springer
    • ISBN
      9789811689833
    • Related Report
      2022 Annual Research Report
  • [Book] Biomedical Engineering: Bioengineering challenges in regenerative medicine: Biofunctional materials design, in press2023

    • Author(s)
      Koichi Kato
    • Publisher
      Jenny Stanford Publishing
    • Related Report
      2022 Annual Research Report

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Published: 2019-10-10   Modified: 2024-01-30  

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