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Collective migration of epithelial cells: a fundamental mechanics of morphogenesis

Research Project

Project/Area Number 17H02939
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionHokkaido University

Principal Investigator

Sato Katsuhiko  北海道大学, 電子科学研究所, 准教授 (90513622)

Co-Investigator(Kenkyū-buntansha) 梅津 大輝  東北大学, 生命科学研究科, 助教 (60620474)
奥田 覚  金沢大学, ナノ生命科学研究所, 准教授 (80707836)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2017: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Keywords上皮細胞 / 形態形成 / 登頂面の収縮力 / 細胞極性 / 細胞の配置換え / 集団運動 / 数理モデル / レオロジー / 接着力 / エンドサイトーシス / 収縮力 / 細胞の集団運動 / 配置換え / 3次元頂点モデル / 平面内極性 / 細胞シート / 一方向移動
Outline of Final Research Achievements

During the morphogenesis of multicellular organisms, the embryo is covered by an epithelial cell sheet and this cell sheet spontaneously bends, elongates and moves. These behaviors of the epithelial sheet are a driving force of morphogenesis. It is thus very important to know how the epithelial sheet achieves these spontaneous movements. While the mechanisms of bending and elongation of epithelial sheet have been relatively well understood, that of unidirectional movement of epithelial sheet has not been clarified yet. In this study, by using a mathematical model called the 3D vertex model that can describe the dynamics of epithelial sheet at the cellular level, we demonstrated that directional dependent contraction forces acting on the cell boundaries near the apical side induce unidirectional movement of epithelial cells. Theoretical expectations and data that can be used to experimentally check whether this scenario is true or not were also provided.

Academic Significance and Societal Importance of the Research Achievements

上皮細胞の集団運動は多細胞生物の形態形成の仕組みにもつながる重要な現象であるが、これまでなぜ上皮細胞は隣の細胞と強く接着した状態で細胞シートの構造を保ったまま一方向に運動できるのかが明らかにされていなかった。本研究では、細胞が持つ細胞境界での収縮力、特に登頂面付近の収縮力が、細胞間の接着を壊すことなく細胞の配置換えを誘導して細胞の一方向運動を起こすことができるということを力学的数理モデルを用いて具体的に示した。この収縮力による細胞の集団運動は、現実の系で使われている可能性は十分にあり、またこの見解によって今まで理解できなかった細胞の集団運動の振る舞いが理解される可能性がある。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (12 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results)

  • [Int'l Joint Research] Claude Bernard University Lyon 1(フランス)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Uni-cellular integration of complex spatial information in slime moulds and ciliates2019

    • Author(s)
      Schenz Daniel、Nishigami Yukinori、Sato Katsuhiko、Nakagaki Toshiyuki
    • Journal Title

      Current Opinion in Genetics & Development

      Volume: 57 Pages: 78-83

    • DOI

      10.1016/j.gde.2019.06.012

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Apical Junctional Fluctuations Lead to Cell Flow while Maintaining Epithelial Integrity2019

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

      Biophysical Journal

      Volume: 116 Issue: 6 Pages: 1159-1170

    • DOI

      10.1016/j.bpj.2019.01.039

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Direction-dependent contraction forces on cell boundaries induce collective migration of epithelial cells within their sheet2017

    • Author(s)
      Sato Katsuhiko
    • Journal Title

      Development, Growth & Differentiation

      Volume: 59 Issue: 5 Pages: 317-328

    • DOI

      10.1111/dgd.12361

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic properties of bio-motile systems as a liquid-crystalline structure2017

    • Author(s)
      Shin'ichi Ishiwata, Makito Miyazaki, Katsuhiko Sato, Koutaro Nakagome, Seine A. Shintani, Fuyu Kobirumaki-Shimozawa, Norio Fukuda, Kazuya Suzuki, Jun Takagi, Yuta Shimamoto, and Takeshi Itabashi
    • Journal Title

      Mol. Cryst. Liq. Cryst.

      Volume: 印刷中 Issue: 1 Pages: 127-150

    • DOI

      10.1080/15421406.2017.1289445

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current reinforcement model reproduces center-in-center vein trajectory of Physarum polycephalum2017

    • Author(s)
      Akita Dai、Schenz Daniel、Kuroda Shigeru、Sato Katsuhiko、Ueda Kei-ichi、Nakagaki Toshiyuki
    • Journal Title

      Development, Growth & Differentation

      Volume: 59 Issue: 5 Pages: 465-470

    • DOI

      10.1111/dgd.12384

    • NAID

      120006470987

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Direction-dependent contraction forces on cell boundaries induce collective migration of epithelial cells within their sheet2019

    • Author(s)
      Katsuhiko Sato
    • Organizer
      GSS international Mini-Symposium "Soft Matter Deformation and Function"
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] "Left-right asymmetric aggregation in Chlamydomonas"2019

    • Author(s)
      Katsuhiko Sato
    • Organizer
      2019 RIMS Workshop "Mathematical Methods in Biofluid Mechanics"
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Left-right Asymmetric Cell Intercalation Drives Directional Collective Cell Movement in Epithelial Morphogenesis2018

    • Author(s)
      Katsuhiko Sato
    • Organizer
      BIT's 9th Anniversary World DNA Day-2018 (WDD-2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Left-right asymmetric cell intercalation drives directional collective cell movement in epithelial morphogenesis2018

    • Author(s)
      Katsuhiko Sato
    • Organizer
      Asia Pacific Society for Biology and Medical Sciences 2018 Annual Meeting (APSBMS 2018 Annual Meeting)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Direct observation of orientation distributions of actin filaments in a solution undergoing shear banding2017

    • Author(s)
      Katsuhiko Sato
    • Organizer
      新学術領域研究 「ゆらぎと構造の協奏:非平衡系における普遍法則の確立」 第4回領域研究
    • Related Report
      2017 Annual Research Report
  • [Presentation] Direction-dependent contraction forces on cell boundaries induce collective migration of epithelial cells within their sheet2017

    • Author(s)
      Katsuhiko Sato
    • Organizer
      17th International Conference CoMFoS17: Mathematical Analysis of Continuum Mechanics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2021-02-19  

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