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Study on the mechanism of structural and tensional memory of cells

Research Project

Project/Area Number 19K22944
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 InstitutionIbaraki University

Principal Investigator

Nagayama Kazuaki  茨城大学, 理工学研究科(工学野), 教授 (10359763)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords細胞バイオメカニクス / メカノバイオロジー / 細胞骨格 / 細胞核 / 恒常性 / 生体医工学
Outline of Research at the Start

血管や骨などの生体組織は力の変化に応じて細胞が応答し「リモデリング」する.最近,申請者らは,細胞には,内部構造や発生する張力を効率良く再現させる「構造と力の記憶」が備わる可能性に気付いた.そこで.本研究では,細胞の内部構造をバラバラにした後,その構造や張力が再現する過程を詳しく調べる.そして,細胞や組織全体が如何にして「記憶の維持」と「記憶のリセット」を切り替えているのか明らかにする.

Outline of Final Research Achievements

We investigated the mechanism of a structural and tensional memory of cells with consideration for cell aging. We used vascular smooth muscle cells and found that cell aging increased cell projected area while it reduced intracellular tension and migration ability. We further found that tensional memory of actin stress fibers in vascular smooth muscle cells tended to decrease with cell aging. These results indicate that cell aging not only affects cell morphology and biochemical functions but also mechanical propeties of cells involving in cellular mechanotransduction.

Academic Significance and Societal Importance of the Research Achievements

本研究では,細胞の継代数が増え老化が進むと細胞張力が減少し運動能にも低下が見られること,個々のアクチン細胞骨格の復帰能力は高まるがその再現性は乏しくなることを明らかにした.さらに,細胞が自身の力学構造の再現と崩壊を巧みに切り換える機能を持っており,その機能は細胞老化と密接に関わることが示唆された.本研究では,このような1つ1つの細胞に備わる「構造と力の再現能力」が,様々な外乱に対する組織全体の恒常性を維持するキーファクターとなっている可能性を世界で初めて得た研究であり,疾患や創傷の早期治療手法の開発などに応用展開できる可能性がある.

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (24 results)

All 2020 2019 Other

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (12 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (4 results)

  • [Journal Article] Quantitative Analysis of Contractile Ability of Vascular Smooth Muscle Cells Using a Micropillar Substrate and a Laser Nanoscissor System2020

    • Author(s)
      NAGAYAMA Kazuaki、NOGAMI Kenzo、SUGANO Shunta
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 86 Issue: 10 Pages: 813-818

    • DOI

      10.2493/jjspe.86.813

    • NAID

      130007922464

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2020-10-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Macroscopic and microscopic analysis of the mechanical properties and adhesion force of cells using a single cell tensile test and atomic force microscopy: Remarkable differences in cell types2020

    • Author(s)
      Nagayama Kazuaki、Ohata Shigeaki、Obata Shota、Sato Akiko
    • Journal Title

      Journal of the Mechanical Behavior of Biomedical Materials

      Volume: 110 Pages: 103935-103935

    • DOI

      10.1016/j.jmbbm.2020.103935

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Moderate substrate stiffness induces vascular smooth muscle cell differentiation through cellular morphological and tensional changes2020

    • Author(s)
      Nagayama Kazuaki、Nishimiya Kouhei
    • Journal Title

      Bio-Medical Materials and Engineering

      Volume: 31 Issue: 3 Pages: 157-167

    • DOI

      10.3233/bme-201087

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of vascular smooth muscle cell and HeLa cell migration on the microgrooved substrate (Cell type differences of the mechanical sensing for microgrooved surfaces)2020

    • Author(s)
      HANZAWA Tatsuya、NAGAYAMA Kazuaki
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 86 Issue: 892 Pages: 20-00301-20-00301

    • DOI

      10.1299/transjsme.20-00301

    • NAID

      130007961509

    • ISSN
      2187-9761
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of an in-process micro tensile tester and its application for measurement of the mechanical properties and adhesion forces of cells (Quantitative analysis of a cancer cell stiffness and adhesion forces)2020

    • Author(s)
      OBATA Shota、NAGAYAMA Kazuaki
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 86 Issue: 892 Pages: 20-00311-20-00311

    • DOI

      10.1299/transjsme.20-00311

    • NAID

      130007961505

    • ISSN
      2187-9761
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Matrix mechanotransduction mediated by thrombospondin-1/integrin/YAP in the vascular remodeling2020

    • Author(s)
      Yamashiro Yoshito、Thang Bui Quoc、Ramirez Karina、Shin Seung Jae、Kohata Tomohiro、Ohata Shigeaki、Nguyen Tram Anh Vu、Ohtsuki Sumio、Nagayama Kazuaki、Yanagisawa Hiromi
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 117 Issue: 18 Pages: 9896-9905

    • DOI

      10.1073/pnas.1919702117

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cyclic stretch-induced mechanical stress to the cell nucleus inhibits ultraviolet radiationinduced DNA damage2020

    • Author(s)
      Nagayama Kazuaki, Fukuei Tomohiro
    • Journal Title

      Biomechanics and Modeling in Mechanobiology 493

      Volume: 19 Issue: 2 Pages: 493-504

    • DOI

      10.1007/s10237-019-01224-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Biomechanical analysis of the mechanical environment of the cell nucleus in serum starvation-induced vascular smooth muscle cell differentiation2019

    • Author(s)
      NAGAYAMA Kazuaki
    • Journal Title

      Journal of Biomechanical Science and Engineering

      Volume: 14 Issue: 4 Pages: 19-00364-19-00364

    • DOI

      10.1299/jbse.19-00364

    • NAID

      130007775702

    • ISSN
      1880-9863
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] セルソーティング技術への応用を目指した微細溝基板上での細胞運動解析 ~細胞種ごとの微細溝感知能の違い~2020

    • Author(s)
      半沢達也,長山和亮
    • Organizer
      日本機械学会2020年度 茨城講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 顕微鏡下マイクロ引張試験機の開発と細胞の力学特性と接着力の定量解析 ~正常細胞とがん細胞の力学特性・接着特性の違い~2020

    • Author(s)
      小幡祥太,上杉薫,長山和亮
    • Organizer
      日本機械学会2020年度 茨城講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 血管平滑筋細胞の脱分化・老化による細胞内構造の復帰能力の変化,2020

    • Author(s)
      野上謙三,長山和亮
    • Organizer
      日本機械学会2020年度 茨城講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 血管平滑筋細胞の脱分化・老化に伴う張力・運動能力・力学特性の変化2020

    • Author(s)
      野上謙三,長山和亮
    • Organizer
      第31回日本機械学会バイオフロンティア講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 顕微鏡下マイクロ引張試験機の開発と細胞の力学特性と接着力の定量解析 ~細胞種による力学特性・接着特性の違い~2020

    • Author(s)
      小幡祥太,長山和亮
    • Organizer
      日本機械学会2020年度年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 酸性ストレスが細胞周期および細胞運動に与える影響2019

    • Author(s)
      佐々木達也,長山和亮
    • Organizer
      日本機械学会第32回バイオエンジニアリング講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 繰返伸展刺激下での核の力学場の変化が細胞紫外線耐性に与える影響2019

    • Author(s)
      長山和亮
    • Organizer
      日本機械学会2019年度年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 骨形成遺伝子抑制細胞の核の力学特性ならびに核内DNAの凝集解析2019

    • Author(s)
      村田博教,長山和亮
    • Organizer
      第30回バイオフロンティア講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] セルソーティング技術への応用を目指した微細溝基板上での細胞運動解析2019

    • Author(s)
      半沢達也,長山和亮
    • Organizer
      第30回バイオフロンティア講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 継代培養での老化に伴う血管平滑筋細胞の張力ならびに力学特性の変化2019

    • Author(s)
      野上謙三,長山和亮
    • Organizer
      第30回バイオフロンティア講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] A novel micro-grooved collagen substrate for inducing vascular smooth muscle cell differentiation through cell tissue arrangement and nucleus remodeling2019

    • Author(s)
      Nagayama K
    • Organizer
      10th Asian-Pacific Conference on Biomechanics (AP Biomech 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Cyclic stretch-induced mechanical stress to the cell nucleus improves the ultraviolet radiation resistance in cells2019

    • Author(s)
      Nagayama K, Fukuei T
    • Organizer
      The 17th International Conference on Biomedical Engineering (ICBME2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 茨城大学研究者情報(長山和亮)茨城大学

    • URL

      https://info.ibaraki.ac.jp/Profiles/27/0002641/profile.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] マイクロ・ナノバイオメカニクス研究室(長山研)ホームページ

    • URL

      http://biomech.mechsys.ibaraki.ac.jp/index.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] 茨城大学研究者情報(長山和亮)

    • URL

      https://info.ibaraki.ac.jp/Profiles/27/0002641/profile.html

    • Related Report
      2019 Research-status Report
  • [Remarks] 茨城大学 マイクロ・ナノバイオメカニクス研究室(長山研)ホームページ

    • URL

      http://biomech.mechsys.ibaraki.ac.jp/index.html

    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2022-01-27  

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