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Development of a measurement method of contraction forces produced by regenerated myocardial tissues at molecular, cellular, and tissue levels

Research Project

Project/Area Number 20H04509
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Kambe Yusuke  国立研究開発法人農業・食品産業技術総合研究機構, 生物機能利用研究部門, 主任研究員 (30747671)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Keywords収縮力 / 心筋組織 / ゲル / FRET / シルク / コラーゲン / 同期性 / 足場材料 / 同期 / シルクフィブロイン / FRETセンサー / 生分解性 / 生分解 / 生体材料
Outline of Research at the Start

本研究では,再生心筋組織の階層構造における各レベル(分子群,細胞,組織)の収縮力を同時に計測する技術を開発することで,再生心筋組織の収縮力発現メカニズムを解明する.また,力の変化を可視化できるセンサーやこれを固定したゲル状細胞培養基材などの周辺技術の確立も行う.本研究により,分子群や心筋細胞の個々の収縮力が,集合体となって,相乗的に増強されるメカニズムが明らかとなり,再生心筋組織の収縮力を増強させるための組織工学的な設計指針が得られる.

Outline of Final Research Achievements

In this study, we developed a method to measure contraction forces produced by regenerated myocardial tissues at cellular and tissue levels simultaneously. A cantilever-based force measurement system revealed that regenerated myocardial tissues composed of neonatal rat cardiomyocytes and collagen type I hydrogel produced a contraction force of about 40 nN/mm2 during their self-beating. In contrast, an imaging-based method showed that the force produced by single cardiomyocytes in the regenerated tissues was approximately 1.3 nN/mm2. This difference indicated that the contraction force at the tissue level was not merely the sum of contraction forces produced by single cardiomyocytes. The force generated by regenerated myocardial tissues might be the result of synergistic effects of various factors such as orientation of cardiomyocytes and synchronization of self-beating.

Academic Significance and Societal Importance of the Research Achievements

同一の再生心筋組織サンプルの拍動収縮力を細胞レベルと組織レベルで計測する技術の創出とこれによって得られた知見は、再生心筋組織の階層構造に伴う拍動収縮力の増強機序の存在を示唆した。これを明らかにすることは、ナノ・マイクロスケールの構造体の機能や挙動が、それらの集合体としてのマクロ構造体の機能を生み出す機構の理解に繋がる。また、機能的に成熟した再生心筋組織が構築できるようになり、心臓の再生医療の発展にも結び付く。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020

All Journal Article (7 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results)

  • [Journal Article] Effects of RGD-fused silk fibroin in a solution format on fibroblast proliferation and collagen production2023

    • Author(s)
      Aytemiz DG, Kambe Y, Hirata M, Nishi H, Kameda T
    • Journal Title

      Bio-Medical Materials and Engineering

      Volume: 34 Issue: 2 Pages: 183-193

    • DOI

      10.3233/bme-221430

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functionalization of Silk Fibroin as a Scaffold for Tissue Engineering and Regenerative Medicine2022

    • Author(s)
      神戸裕介
    • Journal Title

      Sen'i Gakkaishi

      Volume: 78 Issue: 6 Pages: 240-244

    • DOI

      10.2115/fiber.78.240

    • ISSN
      0037-9875, 1884-2259
    • Related Report
      2022 Annual Research Report
  • [Journal Article] “衣料”ではなく“医療”用材料としてのシルク2021

    • Author(s)
      神戸 裕介
    • Journal Title

      Seibutsu-kogaku Kaishi

      Volume: 99 Issue: 3 Pages: 134-134

    • DOI

      10.34565/seibutsukogaku.99.3_134

    • NAID

      130008002768

    • ISSN
      0919-3758, 2435-8630
    • Year and Date
      2021-03-25
    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] Initial immune response to a FRET-based MMP sensor-immobilized silk fibroin hydrogel in vivo2021

    • Author(s)
      Kambe Y、Yamaoka T
    • Journal Title

      Acta Biomaterialia

      Volume: 130 Pages: 199-210

    • DOI

      10.1016/j.actbio.2021.05.030

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functionalization of silk fibroin-based biomaterials for tissue engineering2021

    • Author(s)
      Kambe Y
    • Journal Title

      Polymer Journal

      Volume: 53 Issue: 12 Pages: 1345-1351

    • DOI

      10.1038/s41428-021-00536-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Beta-sheet content significantly correlates with the biodegradation time of silk fibroin hydrogels showing a wide range of compressive modulus2020

    • Author(s)
      Kambe Yusuke、Mizoguchi Yuji、Kuwahara Ken、Nakaoki Takahiko、Hirano Yoshiaki、Yamaoka Tetsuji
    • Journal Title

      Polymer Degradation and Stability

      Volume: 179 Pages: 109240-109240

    • DOI

      10.1016/j.polymdegradstab.2020.109240

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adipose tissue regeneration in a 3D-printed poly(lactic acid) frame-supported space in the inguinal region of rats2020

    • Author(s)
      Kambe Y、Ogino S、Yamanaka H、Morimoto N、Yamaoka T
    • Journal Title

      Bio-Medical Materials and Engineering

      Volume: 31 Issue: 4 Pages: 203-210

    • DOI

      10.3233/bme-201103

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Cell compatibility and nanopartile formation of coiled-coil silk from hornets2023

    • Author(s)
      Aytemiz DG, Kambe Y, Kameda T
    • Organizer
      つくば医工連携フォーラム2023
    • Related Report
      2022 Annual Research Report
  • [Presentation] 医療応用を目指したシルクの機能化と成形加工2022

    • Author(s)
      神戸裕介
    • Organizer
      プラスチック成形加工学会 第33回年次大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 医療用材料としてのシルク2022

    • Author(s)
      神戸裕介
    • Organizer
      日本繊維機械学会 第29回秋季セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Cell compatibility and nanopartile formation of coiled-coil silk from Vespa Cameron2022

    • Author(s)
      Aytemiz DG, Kambe Y, Kameda T
    • Organizer
      第69回日本シルク学会研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 農研機構におけるシルクバイオマテリアル研究2022

    • Author(s)
      神戸裕介
    • Organizer
      つくば医工連携フォーラム2022
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Initial immune responses to silk fibroin hydrogels modified with FRET-MMP sensor2022

    • Author(s)
      Kambe Y,Yamaoka T
    • Organizer
      2022 Joint Symposium SFB+JSB
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FRET-MMPセンサーによるシルクフィブロインゲルに対する免疫反応の可視化2021

    • Author(s)
      神戸裕介,山岡哲二
    • Organizer
      第50回医用高分子シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] FRET-MMPセンサーによる絹フィブロインゲルの初期生分解の可視化2021

    • Author(s)
      神戸裕介,山岡哲二
    • Organizer
      第68回日本シルク学会研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Initial immune response to a FRET-MMP sensor-modified silk fibroin hydrogels2021

    • Author(s)
      Kambe Y,Yamaoka T
    • Organizer
      8th Asian Biomaterials Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シルクハイドロゲルの生分解性は心筋梗塞ゲル注入療法の治療効果に影響する2020

    • Author(s)
      神戸裕介,山岡哲二
    • Organizer
      第19回日本再生医療学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 循環器疾患のための医用高分子材料・デバイスの設計開発2020

    • Author(s)
      神戸裕介
    • Organizer
      第69回高分子学会年次大会
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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