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Unexpectedly wide-range cell-cell contact via Delta-presenting lamellipodia-like protrusions in the mouse neuroepithelium

Research Project

Project/Area Number 18K14837
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 46020:Anatomy and histopathology of nervous system-related
Research InstitutionKyoto University (2021-2022)
Nagoya University (2018-2019)

Principal Investigator

Kawaue Takumi  京都大学, 高等研究院, 特定助教 (50793858)

Project Period (FY) 2021-03-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords発生・分化 / 細胞間相互作用 / 神経前駆細胞 / Delta-Notchシグナル伝達 / 細胞運命選択 / 細胞間接触 / Delta-Notchシグナル / 神経上皮
Outline of Research at the Start

胎生期の大脳原基において、神経前駆細胞は周囲の分化細胞との接触を介したDelta-Notchシグナル伝達を利用して、「分化」か「未分化」の運命選択を行う。従来、そのシグナル伝達は直近の隣接細胞間のみで行われる狭い範囲のものを想定してきたが、申請者は最近、2~4細胞先の遠方の細胞にまで接触する葉状仮足を新規に発見したことで、そのやり取りはより広範囲に渡る可能性(仮説)があると考えた。本研究では、1)葉状仮足の消失実験を通してこの仮説を検証するとともに、2)Delta-Notchシグナル伝達が活性化されるための「細胞間接触(部位・面積・時間)」とはいかなるものか、その本質を問う。

Outline of Final Research Achievements

During mammalian brain development, cell contact-mediated interactions, such as Delta-Notch signaling, are important for the cell fate choice of the newborn cells. Although the fundamental molecular mechanism of Delta-Notch signaling is well known, how Delta-presenting cells contact with the neighbors to induce their Notch activation in developing 3D tissues has been challenging to address. In this study, we demonstrated that membrane-bound Delta molecules were enriched in lamellipodia-like protrusions that were extended from the apical process of differentiating cells. In addition, the decrease in lamellipodia-like structures increased the number of differentiating cells in the cerebral cortex. These results suggest that cell-cell contacts through microstructures are involved in cell fate choice for newborn cells.

Academic Significance and Societal Importance of the Research Achievements

本研究によって、哺乳類の大脳が形成される過程における細胞の運命選択の仕組みについて理解が深まった。また、細胞が持つ微細構造とそのダイナミクスが、細胞間のシグナル伝達の範囲を規定する重要な要素であることが明らかとなった。発展的展望として、シグナル伝達が活性化されるために必要な実質的な細胞間接触(接触面積・時間)について理解する必要があり、これから得られる知見は細胞の運命選択のみならず発生(正常・がん)・再生・疾患のメカニズム解明の糸口となる期待がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2019 Annual Research Report
  • 2018 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 2019 2018

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

  • [Journal Article] Inhomogeneous mechanotransduction defines the spatial pattern of apoptosis-induced compensatory proliferation2023

    • Author(s)
      Takumi Kawaue, Ivan Yow, Yuping Pan, Anh Phuong Le, Yuting Lou, Mavis Loberas, Murat Shagirov, Xiang Teng, Jacques Prost, Tetsuya Hiraiwa, Benoit Ladoux, Yusuke Toyama
    • Journal Title

      Developmental Cell

      Volume: 58(4) Issue: 4 Pages: 267-277.e5

    • DOI

      10.1016/j.devcel.2023.01.005

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mechanics defines the spatial pattern of compensatory proliferation2021

    • Author(s)
      Kawaue Takumi、Yow Ivan、Le Anh Phuong、Lou Yuting、Loberas Mavis、Shagirov Murat、Prost Jacques、Hiraiwa Tetsuya、Ladoux Benoit、Toyama Yusuke
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.07.04.451019

    • Related Report
      2021 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Interfacial friction dictates long-range force propagation in tissues2021

    • Author(s)
      Yuting Lou, Takumi Kawaue, Ivan Yow, Yusuke Toyama, Jacques Prost, Tetsuya Hiraiwa
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2021 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Lzts1 controls both neuronal delamination and outer radial glial-like cell generation during mammalian cerebral development2019

    • Author(s)
      Kawaue T.、Shitamukai A.、Nagasaka A.、Tsunekawa Y.、Shinoda T.、Saito K.、Terada R.、Bilgic M.、Miyata T.、Matsuzaki F.、Kawaguchi A.
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 2780-2780

    • DOI

      10.1038/s41467-019-10730-y

    • NAID

      120006649601

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elasticity-based boosting of neuroepithelial nukleokinesis via indirect energy transfer from mother to daughter2018

    • Author(s)
      Tomoyasu Shinoda, Arata Nagasaka, Yasuhiro Inoue, Ryo Higuchi, Yoshiaki Minami, Kagayaki Kato, Makoto Suzuki, Takefumi Kondo, Takumi Kawaue, Kanako Saito, Naoto Ueno, Yugo Fukazaawa, Masaharu Nagayama, Takashi Miura, Taiji Adachi, Takaki Miyata
    • Journal Title

      PLoS Biology

      Volume: 16 Issue: 4 Pages: 2004426-2004426

    • DOI

      10.1371/journal.pbio.2004426

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Differentiating cells mechanically limit the interkinetic nuclear migration of progenitor cells to secure apical cytogenesis2018

    • Author(s)
      Watanabe Yuto、Kawaue Takumi、Miyata Takaki
    • Journal Title

      Development

      Volume: 145 Issue: 14

    • DOI

      10.1242/dev.162883

    • NAID

      120006536920

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Mechanical impact of apoptosis in compensatory cell proliferation2022

    • Author(s)
      Takumi Kawaue, Yow Ying Ming Ivan, Yusuke Toyama
    • Organizer
      World Congress of Biomechanics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mechanical impact of apoptosis in compensatory cell proliferation2022

    • Author(s)
      Takumi Kawaue, Yow Ying Ming Ivan, Yusuke Toyama
    • Organizer
      9th World Congress of Biomechanics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Premigratory neurons mechanically limit interkinetic nuclear migration to secure progenitor cells’ apical cytogenesis2018

    • Author(s)
      Kawaue T, Watanabe Y, Miyata T
    • Organizer
      22nd Biennial Meeting of the International Society of Developmental Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Unexpectedly wide-range cell-cell contact via Delta-presenting lamellipodia-like protrusions in the mouse neuroepithelium2018

    • Author(s)
      Kawaue T, Fukazawa Y, Miyata T
    • Organizer
      Joint Meeting of JSCB 70th & JSDB 51st
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2024-12-25  

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