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Development of a multicellular model that can describe the dynamics of arbitrary-shaped cells

Research Project

Project/Area Number 20K14424
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Tateno Michio  東京大学, 先端科学技術研究センター, 特任助教 (20868468)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords多細胞シミュレーション / 細胞極性形成 / 反応拡散系 / パターン形成 / 相分離 / Phase field 法 / ブラウン動力学法 / 細胞極性 / 細胞の集団運動 / フェーズフィールド法 / レオロジー / 細胞選別
Outline of Research at the Start

本研究では、任意形状の細胞の集団運動を記述可能な新しいクラスの数理モデルを開発し、対応するプログラムを高度に並列化することで、細胞内の化学場から単一細胞の動態、さらには組織レベルの協調運動までを一挙に捕捉した、多階層・大規模シミュレーションを実現する。具体的な問題として、上皮細胞の固化・流動化(ジャミング転移)現象および、細胞性粘菌などに見られる細胞選別現象に本シミュレーションを適用する。これにより、組織の流動化や区画化といった細胞集団の基幹プロセスについて、物理学的な側面から新たな知見を与えることを目指す。

Outline of Final Research Achievements

In this study, we accelerate an existing single-cell simulation model using parallel computing, achieving a multscale simulation on the order of 100 cells that encompasses the temporal changes in the intracellular chemical field to the dynamics of cell populations. Additionally, we focus on the mass-conserved reaction-diffusion system, a continuum model for cell polarity formation used in the above multicellular model, and conduct large-scale simulations and theoretical analysis. As a result, we find that the growth rate of the pattern (protein concentration field) is controlled by the curvature of the pattern's interface.

Academic Significance and Societal Importance of the Research Achievements

これまでに、細胞を球形、棒、多角形などの要素に近似した数理モデルによって、実験で確認されている力学波、ジャミング、トポロジー欠陥といった細胞集団の振る舞いが個別に再現されている。任意変形可能な多細胞モデルは、これらの知見を包括的に理解する上で重要な役割を果たすものと期待される。また、細胞極性形成の連続体モデルに関する研究結果は、エネルギー変分を前提としない反応拡散系であっても、質量保存則という条件の下で界面張力に似た量が非自明に現れる例を示しており、このことは化学反応により駆動される分子の自己組織化の理解に新たな視点を提供するものと考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2021 2020 Other

All Journal Article (6 results) (of which Peer Reviewed: 2 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (4 results)

  • [Journal Article] Distinct elastic properties and their origins in glasses and gels2024

    • Author(s)
      Wang Yinqiao、Tateno Michio、Tanaka Hajime
    • Journal Title

      Nature Physics

      Volume: - Issue: 7 Pages: 1171-1179

    • DOI

      10.1038/s41567-024-02456-6

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Mechanical Self-Organization of Particle Networks during Uniaxial Compression Yielding2024

    • Author(s)
      Tateno Michio、Wang Yinqiao、Tanaka Hajime
    • Journal Title

      Physical Review X

      Volume: 14 Issue: 1 Pages: 11035-11054

    • DOI

      10.1103/physrevx.14.011035

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Mechanical Slowing Down of Network-Forming Phase Separation of Polymer Solutions2023

    • Author(s)
      Yuan Jiaxing、Tateno Michio、Tanaka Hajime
    • Journal Title

      ACS Nano

      Volume: 17 Issue: 18 Pages: 18025-18036

    • DOI

      10.1021/acsnano.3c04657

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Interfacial-curvature-driven coarsening in mass-conserved reaction-diffusion systems2021

    • Author(s)
      M. Tateno and S. Ishihara
    • Journal Title

      Physical Review Research

      Volume: 3 Issue: 2 Pages: 023198-023198

    • DOI

      10.1103/physrevresearch.3.023198

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Power-law coarsening in network-forming phase separation governed by mechanical relaxation2021

    • Author(s)
      Tateno Michio, Tanaka Hajime
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s41467-020-20734-8

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Surface-tension-driven coarsening in mass-conserved reaction-diffusion systems2020

    • Author(s)
      Tateno Michio, Ishihara Shuji
    • Journal Title

      arXiv

      Volume: 2010.03900 Pages: 1-15

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Presentation] Mechanical self-organization of particle networks under uniaxial compression yielding2023

    • Author(s)
      Tateno Michio、Wang Yinqiao、Tanaka Hajime
    • Organizer
      The 9th International Discussion Meeting on Relaxations in Complex Systems
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microstructure of colloidal gels undergoing gravitational collapse2023

    • Author(s)
      Tateno Michio、Wang Yinqiao、Tanaka Hajime
    • Organizer
      The 7th International Soft Matter Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of void morphology on compressive yield stress of sticky spheres2023

    • Author(s)
      Tateno Michio、Wang Yinqiao、Tanaka Hajime
    • Organizer
      ソフトマター研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] コロイドゲルの形成過程と力学特性の関係2023

    • Author(s)
      舘野道雄, Yinqiao Wang, 田中肇
    • Organizer
      日本物理学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 短距離引力で相互作用するコロイドの凝集過程について2023

    • Author(s)
      舘野道雄
    • Organizer
      ベントナイトのフロンティア研究ワークショップ
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 舘野道雄、石原秀至、田中肇2020

    • Author(s)
      運動量保存則とブラウン粒子からなる液滴の熱運動
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 舘野道雄、石原秀至2020

    • Author(s)
      質量保存を満たす反応拡散系にみられる相分離的な挙動
    • Organizer
      日本生物物理学会第58回年会
    • Related Report
      2020 Research-status Report
  • [Remarks] 非晶質固体の力学的挙動の謎に迫る:ガラスとゲルの違いは何か?

    • URL

      https://www.rcast.u-tokyo.ac.jp/ja/news/release/20240412.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 圧縮変形下での粒子ネットワークの普遍的物質状態を発見

    • URL

      https://www.rcast.u-tokyo.ac.jp/ja/news/release/20240307.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 高分子溶液系の相分離の謎を解明

    • URL

      https://www.rcast.u-tokyo.ac.jp/ja/news/release/20230908.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 最新の研究 ネットワーク状の相分離構造の新たな成長則を発見

    • URL

      https://www.iis.u-tokyo.ac.jp/ja/research/archive/3486/

    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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