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Role of fluctuation in regulating the elastic-plastic property of tissues during organogenesis

Research Project

Project/Area Number 22K18749
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionKanazawa University

Principal Investigator

Okuda Satoru  金沢大学, ナノ生命科学研究所, 准教授 (80707836)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords生体力学 / バイオメカニクス
Outline of Research at the Start

器官の形成過程は,ミクロな分子・細胞レベルの力発生により駆動される動的な変形過程であり,マクロな器官レベルにおいて頑強に制御されている.近年,器官発生の進行に応じて,器官を構成する組織の弾塑性が適応的に変化することが分かってきた.特に,この組織の弾塑性を介して,内部構造である細胞骨格や接着構造等のアクティブなゆらぎが,組織の形態形成を制御している可能性がある.そこで本研究では,器官形成にみられる分子・細胞レベルの内部構造ゆらぎが,マルチスケールな相互作用を介して,組織の弾塑性をどのように制御するのかを解明する.

Outline of Final Research Achievements

To elucidate the adaptive regulatory mechanism of tissue elastoplasticity and the role of internal structural fluctuations in organogenesis, we have worked on multi-scale mathematical modeling to analyze the three-dimensional dynamics of cells from the cytoskeleton. In particular, in order to analyze long-term multicellular dynamics, we have developed a mathematical model of non-conservative fluid membranes to describe the non-equilibrium dynamics of cell membranes composed of lipids, cytoskeleton, and related molecules. Numerical simulations using this mathematical model enables us to predict the active three-dimensional mechanical dynamics of multicellular systems.

Academic Significance and Societal Importance of the Research Achievements

長時間スケールにおける多細胞の三次元力学動態に関する理解は,胚発生,がん進展,創傷治癒など,幅広い生命現象に関わる根本的な課題の一つである.特に,器官形成における組織弾塑性の適応性は,多細胞の適応的な振る舞いを決定する重要な因子である.本研究では提案した新規の数理モデルは,このような多細胞の三次元力学動態を予測することを可能にし,幅広い生命現象に共通する原理的な理解に繋がると期待される.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022

All Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (15 results) (of which Int'l Joint Research: 5 results,  Invited: 11 results)

  • [Journal Article] Machine learning-based estimation of spatial gene expression pattern during ESC-derived retinal organoid development2023

    • Author(s)
      Fujimura Yuki、Sakai Itsuki、Shioka Itsuki、Takata Nozomu、Hashimoto Atsushi、Funatomi Takuya、Okuda Satoru
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1

    • DOI

      10.1038/s41598-023-49758-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modelling contractile ring formation and division to daughter cells for simulating proliferative multicellular dynamics2023

    • Author(s)
      Okuda Satoru、Hiraiwa Tetsuya
    • Journal Title

      The European Physical Journal E

      Volume: 46 Issue: 7

    • DOI

      10.1140/epje/s10189-023-00315-5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multicellular dynamics on structured surfaces: Stress concentration is a key to controlling complex microtissue morphology on engineered scaffolds2023

    • Author(s)
      Matsuzawa Ryosuke、Matsuo Akira、Fukamachi Shuya、Shimada Sho、Takeuchi Midori、Nishina Takuya、Kollmannsberger Philip、Sudo Ryo、Okuda Satoru、Yamashita Tadahiro
    • Journal Title

      Acta Biomaterialia

      Volume: 166 Pages: 301-316

    • DOI

      10.1016/j.actbio.2023.05.012

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long-term adherent cell dynamics emerging from energetic and frictional interactions at the interface2023

    • Author(s)
      Okuda Satoru、Hiraiwa Tetsuya
    • Journal Title

      Physical Review E

      Volume: 107 Issue: 3 Pages: 034406-034406

    • DOI

      10.1103/physreve.107.034406

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Continuum modeling of non-conservative fluid membrane for simulating long-term cell dynamics2022

    • Author(s)
      Okuda Satoru、Sato Katsuhiko、Hiraiwa Tetsuya
    • Journal Title

      The European Physical Journal E

      Volume: 45 Issue: 8 Pages: 0-0

    • DOI

      10.1140/epje/s10189-022-00223-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polarized interfacial tension induces collective migration of cells, as a cluster, in a 3D tissue2022

    • Author(s)
      Okuda Satoru、Sato Katsuhiko
    • Journal Title

      Biophysical Journal

      Volume: 121 Issue: 10 Pages: 1856-1867

    • DOI

      10.1016/j.bpj.2022.04.018

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Elasto-plasticity as a key regulator of the progress of morphogenesis," Exploring Organoid Design with Microengineering2024

    • Author(s)
      Satoru Okuda
    • Organizer
      Exploring Organoid Design with Microengineering
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 器官形成の一方向性を決める上皮組織の力学2023

    • Author(s)
      奥田覚
    • Organizer
      第11回ソフトマター研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 形態形成を不可逆に進行させる上皮折りたたみの力学的可塑性2023

    • Author(s)
      奥田覚
    • Organizer
      第61回日本生物物理学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Versatile computational modeling of 3D multicellular dynamics and application to collective cell migration2023

    • Author(s)
      Satoru Okuda
    • Organizer
      7th NanoLSI Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Elastic-Plastic Transition in the Mechanical Response of Ep-ithelium2023

    • Author(s)
      Aki Teranishi, Satoru Okuda
    • Organizer
      RIKEN BDR Symposium 2023 Transitions in Biological Systems
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 組織切片のAFM計測による生きた胚内部の弾性率マッピング2022

    • Author(s)
      詩丘伊月, 奥田覚
    • Organizer
      第33回 バイオフロンティア講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 多細胞ダイナミクスの汎用的計算手法: 3Dバーテックスモデルと非保存流体膜モデル2022

    • Author(s)
      奥田覚
    • Organizer
      ソフトバイオ研究会2022
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Mechanical plasticity of epithelium for progressing morphogenesis2022

    • Author(s)
      Satoru Okuda
    • Organizer
      New Frontiers in Developmental Biology; Celebrating the Diversity of Life
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Computational simulations of cell and tissue dynamics2022

    • Author(s)
      Satoru Okuda
    • Organizer
      Computational Biophysics of Atomic Force Microscopy A Lecture-based Workshop
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 上皮組織の適応的な曲げ特性とその分子制御機構の解明2022

    • Author(s)
      寺西亜生, 奥田覚
    • Organizer
      日本機械学会 2022年度年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 3Dバーテックスモデルによる上皮層形成の力学機構の解明2022

    • Author(s)
      深町崇耶, 奥田覚
    • Organizer
      日本機械学会 2022年度年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 界面張力の不均一性・ゆらぎ・非対称性が引き起こす多細胞の集団運動2022

    • Author(s)
      奥田覚
    • Organizer
      ゆらぎ界面研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Collective migration of cells as a sheet and cluster in 3D space2022

    • Author(s)
      Satoru Okuda
    • Organizer
      The 9th World Congress of Biomechanics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 極性化した界面張力が引き起こす多細胞のクラスター運動の力学機構2022

    • Author(s)
      奥田覚
    • 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 Research-status Report
    • Invited
  • [Presentation] Mechanics of Epithelial Stratification:Numerical Simulations Using a 3D Vertex Model2022

    • Author(s)
      Shuya Fukamachi, Satoru Okuda
    • Organizer
      The 55th Annual Meeting of the Japanese Society of Developmental Biologists
    • Related Report
      2022 Research-status Report
    • Invited

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Published: 2022-07-05   Modified: 2025-01-30  

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