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Investigation on the homeostasis mechanism of cells based on the nucleus-cytoskeleton connections

Research Project

Project/Area Number 21H03804
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 InstitutionIbaraki University

Principal Investigator

Nagayama Kazuaki  茨城大学, 応用理工学野, 教授 (10359763)

Co-Investigator(Kenkyū-buntansha) 上杉 薫  茨城大学, 理工学研究科(工学野), 助教 (20737027)
山城 義人  国立研究開発法人国立循環器病研究センター, 研究所, 室長 (70751923)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords細胞バイオメカニクス / メカノバイオロジー / 細胞核 / 細胞骨格 / DNA / DNA
Outline of Research at the Start

本研究は,研究代表者らが世界に先駆けて見出した「細胞骨格と核の力学的な繋がり」のメカニズムとその生理学的な意義を明らかにしていく.すなわち,細胞骨格と核の「繋がり」は,細胞の様々な力学応答の感度を決めるキーファクターであり,ある時は積極的に核の中に力を伝えて遺伝子発現を促進させ,またある時は核を力学的に保持して不要な遺伝子を眠らせるといった,生体恒常性の“切り換えスイッチ” を担う可能性が高い.この考えを立証するために,独自の細胞マニピュレーション技術と遺伝子レベルの生化学分析技術を融合した実験系を構築し,細胞骨格と核の「繋がり」に基づく細胞の恒常性の維持・破綻のメカニズムの解明に挑む.

Outline of Final Research Achievements

To elucidate the mechanism of vascular smooth muscle cell (VSMC) homeostasis, we developed a novel micro-grooved collagen substrate to control cell orientation similar to that in aortic walls, and found that the contractile differentiation of VSMCs were significantly facilitated on this substrate. We also investigated the internal tension of actin stress fibers and the mechanical properties of the nucleus in VSMCs using atomic force microscopy, and found that nuclear stiffening and the loss of nuclear-cytoskeletal connection may be important factors not only in the maintenance of the VSMC contractile phenotype but also in the protection of biomechanical and physiological integrity of the cell nucleus from external mechanical disturbances.

Academic Significance and Societal Importance of the Research Achievements

本課題研究で得られた成果は,細胞外の力が細胞骨格を伝わって,遺伝子を保存する核に伝達されることを実験的に証明した研究である.そして,細胞骨格と核の繋がりが,細胞の分化過程で大きく変化することを明らかにし,この繋がりによって細胞への物理的刺激による遺伝子発現感度が決定される可能性を示したものである.今後,それぞれの細胞骨格分子と核をつなぐリンカー分子の選択的操作による創薬技術への展開などが期待できる.また,開発したコラーゲン製の微細溝基質は,血管平滑筋細胞に限らず様々な細胞を用いた人工組織形成用の基材として実用可能性が大きい技術である.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (36 results)

All 2023 2022 2021 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 8 results) Presentation (20 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Remarks (4 results)

  • [Journal Article] Deformation and Trapping of Cell Nucleus Using Micropillar Substrates Possibly Affect UV Radiation Resistance of DNA2023

    • Author(s)
      Nagayama Kazuaki、Sagawa Chiaki、Sato Akiko
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: 35 Issue: 5 Pages: 1158-1164

    • DOI

      10.20965/jrm.2023.p1158

    • ISSN
      0915-3942, 1883-8049
    • Year and Date
      2023-10-20
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Superficial groove structure in the size of focal adhesion can clarify cell-type-specific differences in force-dependent substrate mechanosensing2023

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

      Journal of Biomechanical Science and Engineering

      Volume: 18 Issue: 3 Pages: 22-00474-22-00474

    • DOI

      10.1299/jbse.22-00474

    • ISSN
      1880-9863
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inducement of cell tissue arrangement and vascular smooth muscle differentiation using micro-grooved concaves2023

    • Author(s)
      綿谷直樹,長山和亮
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 89 Issue: 920 Pages: 23-00004-23-00004

    • DOI

      10.1299/transjsme.23-00004

    • ISSN
      2187-9761
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Actin crosslinking by α-actinin averts viscous dissipation of myosin force transmission in stress fibers2023

    • Author(s)
      Katsuta Hiroki、Okuda Satoru、Nagayama Kazuaki、Machiyama Hiroaki、Kidoaki Satoru、Kato Masashi、Sokabe Masahiro、Miyata Takaki、Hirata Hiroaki
    • Journal Title

      iScience

      Volume: 26 Issue: 3 Pages: 106090-106090

    • DOI

      10.1016/j.isci.2023.106090

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in the intra- and extra-mechanical environment of the nucleus in Saos-2 osteoblastic cells during bone differentiation process: Nuclear shrinkage and stiffening in cell differentiation2023

    • Author(s)
      Nagayama Kazuaki、Kodama Fumiki、Wataya Naoki、Sato Akiko、Matsumoto Takeo
    • Journal Title

      Journal of the Mechanical Behavior of Biomedical Materials

      Volume: 138 Pages: 105630-105630

    • DOI

      10.1016/j.jmbbm.2022.105630

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Partial endothelial-to-mesenchymal transition mediated by HIF-induced CD45 in neointima formation upon carotid artery ligation2022

    • Author(s)
      Yamashiro Yoshito、Ramirez Karina、Nagayama Kazuaki、Hattori Naoko、Liu Yu-Yu、Matsunaga Shinji、Tomita Shuhei、Kubota Yoshiaki、Yanagisawa Hiromi
    • Journal Title

      Cardiovascular Research

      Volume: 12 Issue: 7 Pages: 1606-1618

    • DOI

      10.1093/cvr/cvac190

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Polarized light retardation analysis allows for the evaluation of tension in individual stress fibers2022

    • Author(s)
      Sugita Shukei、Hozaki Masatoshi、Matsui Tsubasa S.、Nagayama Kazuaki、Deguchi Shinji、Nakamura Masanori
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 620 Pages: 49-55

    • DOI

      10.1016/j.bbrc.2022.06.066

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cell type-specific orientation and migration responses for a microgrooved surface with shallow grooves2022

    • Author(s)
      Nagayama Kazuaki、Hanzawa Tatsuya
    • Journal Title

      Bio-Medical Materials and Engineering

      Volume: 33 Issue: 5 Pages: 393-406

    • DOI

      10.3233/bme-211356

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] C9orf72-Derived Proline:Arginine Poly-Dipeptides Modulate Cytoskeleton and Mechanical Stress Response2022

    • Author(s)
      Shiota Tomo、Nagata Riko、Kikuchi Sotaro、Nanaura Hitoki、Matsubayashi Masaya、Nakanishi Mari、Kobashigawa Shinko、Isozumi Noriyoshi、Kiriyama Takao、Nagayama Kazuaki、Sugie Kazuma、Yamashiro Yoshito、Mori Eiichiro
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 10 Pages: 750829-750829

    • DOI

      10.3389/fcell.2022.750829

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Keeping a Clean Surface under Water: Nanoscale Nipple Array Decreases Surface Adsorption and Adhesion Forces2022

    • Author(s)
      Uesugi Kaoru、Nagayama Kazuaki、Hirose Euichi
    • Journal Title

      Journal of Marine Science and Engineering

      Volume: 10 Issue: 1 Pages: 81-81

    • DOI

      10.3390/jmse10010081

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of UV-induced DNA Damage of Cells by Hydrostatic Pressure2021

    • Author(s)
      上杉 薫、佐藤 賢也、長山 和亮
    • Journal Title

      Journal of the Japanese Society for Experimental Mechanics

      Volume: 21 Issue: 3 Pages: 208-214

    • DOI

      10.11395/jjsem.21.208

    • NAID

      130008105650

    • ISSN
      1346-4930, 1884-4219
    • Year and Date
      2021-10-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Loss of Nuclear-Cytoskeletal Interactions in Vascular Smooth Muscle Cell Differentiation Induced by a Micro-Grooved Collagen Substrate Enabling the Modeling of an In Vivo Cell Arrangement2021

    • Author(s)
      Nagayama Kazuaki
    • Journal Title

      Bioengineering

      Volume: 8 Issue: 9 Pages: 124-124

    • DOI

      10.3390/bioengineering8090124

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 配列化血管平滑筋細胞組織への繰返引張負荷およびリアルタイム応答観察2023

    • Author(s)
      山崎泰成,長山和亮
    • Organizer
      日本機械学会 第35回バイオエンジニアリング講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 配列化人工血管平滑筋組織を使った繰返伸展刺激下での細胞応答解析2023

    • Author(s)
      山崎泰成,長山和亮
    • Organizer
      日本機械学会 2023年度茨城講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] BIOMECHANICAL ANALYSIS FOR A SELF-REPAIR MECHANISM OF ACTIN STRESS FIBERS2023

    • Author(s)
      Kazuaki Nagayama
    • Organizer
      The 6th Japan-Switzerland Workshop on Biomechanics (JSB2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 細胞バイオメカニクス:機械工学技術を駆使した細胞分析・操作への展開2023

    • Author(s)
      長山和亮
    • Organizer
      日本機械学会 M&M2023 材料力学カンファレンス
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 局所的圧縮で誘発される皮膚線維芽細胞のDNA損傷メカニズム(力学的バイスタンダー効果による細胞がん化の可能性)2023

    • Author(s)
      廣岡祐仁,中村麻子,長山和亮
    • Organizer
      日本機械学会 第34回バイオフロンティア講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] レーザアブレーション法を用いた細胞の損傷回復機構の解析2023

    • Author(s)
      長山和亮
    • Organizer
      2023年度精密工学会春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 微細溝基板を用いた動脈内力学環境の再現と細胞収縮機能の向上2023

    • Author(s)
      長山和亮
    • Organizer
      2023年度精密工学会春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 原子間力顕微鏡組込型の引張試験機の開発と力に対する細胞の張力変化の解析2022

    • Author(s)
      佐野真太,長山和亮
    • Organizer
      日本生体医工学会関東支部若手研究者発表会2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 機械学習を用いた無染色位相差顕微鏡画像からの細胞核抽出と評価2022

    • Author(s)
      大橋未来,長山和亮
    • Organizer
      日本生体医工学会関東支部若手研究者発表会2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Biomechanical Approaches for Investigating the Roles of Actin-Nucleus Interactions in Vascular Cell Functions,2022

    • Author(s)
      Kazuaki Nagayama
    • Organizer
      4th International Symposium on Nanoarchitectonics for Mechanobiology (Mechano-X BIO&CHEM 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 微細溝凹部での細胞の力学的拘束が血管平滑筋細胞の核形態と分化に与える影響2022

    • Author(s)
      綿谷直樹,長山和亮
    • Organizer
      日本機械学会2022年度年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The Roles of Nuclear-cytoskeletal Interactions in Vascular Smooth Muscle Cell Differentiation2022

    • Author(s)
      Kazuaki Nagayama
    • Organizer
      9th World Congress of Biomechanics (WCB2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 細胞の力学応答・修復におけるアクチン細胞骨格の役割2022

    • Author(s)
      長山和亮
    • Organizer
      日本機械学会 第34回バイオエンジニアリング講演会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マイクロ溝基板を用いた細胞の形態制御と細胞内部構造の3次元解析2022

    • Author(s)
      綿谷直樹,上杉薫,長山和亮
    • Organizer
      日本機械学会 2022年度茨城講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 細胞の機能調整における核と細胞骨格の繋がりの役割2021

    • Author(s)
      長山和亮
    • Organizer
      日本機械学会 第33回バイオエンジニアリング講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 微細溝コラーゲン基質上で配列化培養した血管平滑筋細胞への繰返伸展刺激負荷2021

    • Author(s)
      綿谷直樹,長山和亮
    • Organizer
      日本機械学会 第33回バイオエンジニアリング講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 血管壁の力学的・生化学的環境を考慮した細胞培養実験系の確立2021

    • Author(s)
      綿谷直樹,長山和亮
    • Organizer
      日本機械学会 2021年度茨城講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 細胞の力学応答解析のための顕微鏡下伸展刺激負荷システムの開発2021

    • Author(s)
      池田圭吾,長山和亮
    • Organizer
      日本機械学会 2021年度茨城講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 血管平滑筋細胞の脱分化・老化に伴うアクチン細胞骨格の張力挙動変化2021

    • Author(s)
      長山和亮
    • Organizer
      日本機械学会2021年度年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 顕微鏡下マイクロ引張試験機による単一細胞の機械的特性・及び接着力の同時評価 ~微小管重合阻害した子宮頸癌由来HeLa細胞の力学的特性変化~2021

    • Author(s)
      上杉薫,小幡祥太,長山和亮
    • Organizer
      日本機械学会2021年度年次大会
    • Related Report
      2021 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
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] 茨城大学 マイクロ・ナノバイオメカニクス研究室ホームページ 研究業績

    • URL

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

    • Related Report
      2023 Annual Research Report 2022 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
      2021 Annual Research Report
  • [Remarks] 茨城大学 マイクロ・ナノバイオメカニクス研究室ホームページ 研究業績

    • URL

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

    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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