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Elucidating mechanisms underlying the maintenance of planar cell polarity

Research Project

Project/Area Number 19K16153
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionNational Institute for Basic Biology

Principal Investigator

Arata Masaki  基礎生物学研究所, 初期発生研究部門, 特任助教 (50829900)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords平面内細胞極性 / マウス / 卵管 / 恒常性維持 / 損傷修復
Outline of Research at the Start

平面内細胞極性は上皮組織の機能に重要であり、細胞の入れ替わりが起こる哺乳類成体の上皮組織においても個体の一生を通して維持される。しかしながら、成体の上皮組織で平面内細胞極性を維持する仕組みは明らかにされていない。本研究では、マウスの卵管の上皮を実験系とし、1細胞レベルでの遺伝子発現プロファイルの解析やイメージングによる解析を通して、幹細胞から供給された未分化な細胞が平面内細胞極性を獲得し、維持する仕組みの解明を目指す。

Outline of Final Research Achievements

Planar cell polarity (PCP) is the coordinated alignment of cellular polarity in the plane of epithelial tissues, which is exemplified by unidirectional ciliary movements of multiciliated cells (MCCs) in the oviduct. Although PCP is essential for functions of organs, mechanisms of how PCP is maintained in matured organs are still unclear.
In the mouse oviduct epithelium, cellular turnover occurs throughout life. We found that proliferated oviduct epithelial cells acquired PCP as they differentiated to MCCs. We hypothesized that differentiating cells establish PCP by reading orientations of adjacent cells, and verified this hypothesis. Furthermore, to identify genes that regulate the acquisition of PCP during MCC differentiation, gene expressions were analyzed by single cell RNA-sequencing. We focused on genes whose expression levels changed during MCC differentiation, and prepared to investigate roles of those genes in the maintenance of PCP.

Academic Significance and Societal Importance of the Research Achievements

発生過程における平面内細胞極性の形成機構はショウジョウバエ翅をモデル系として研究が進んできた。しかし、ショウジョウバエ翅の上皮細胞は羽化直後に死滅するため平面内細胞極性の維持機構の研究には適していない。新たに生まれた細胞がいかにして自らの向きと大きく成長した器官の向きとをすり合わせ、器官全体で細胞の向きが揃った状態が維持されるのか、その機構は未解明のままである。本研究では平面内細胞極性が成体でも維持されるマウスの卵管上皮組織に着目することで、この問題を解決する基盤となる成果を得た。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019

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

  • [Journal Article] Intercellular and intracellular cilia orientation is coordinated by CELSR1 and CAMSAP3 in oviduct multi-ciliated cells2021

    • Author(s)
      Usami Fumiko Matsukawa、Arata Masaki、Shi Dongbo、Oka Sanae、Higuchi Yoko、Tissir Fadel、Takeichi Masatoshi、Fujimori Toshihiko
    • Journal Title

      Journal of Cell Science

      Volume: 134 Issue: 4

    • DOI

      10.1242/jcs.257006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Single-cell profiling of mouse oviduct epithelial cells2021

    • Author(s)
      Masaki Arata, Fumiko Matsukawa Usami, Katsushi Yamaguchi, Shuji Shigenobu, Toshihiko Fujimori
    • Organizer
      第54回 日本発生生物学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Single-cell profiling of mouse oviduct epithelial cells2020

    • Author(s)
      Masaki Arata, Fumiko Matsukawa Usami, Katsushi Yamaguchi, Shuji Shigenobu, Toshihiko Fujimori
    • Organizer
      第43回日本分子生物学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mechanisms Underlying the Maintenance of Planar Cell Polarity2019

    • Author(s)
      Masaki Arata, Fumiko Usami, Toshihiko Fujimori
    • Organizer
      The 66th NIBB Conference / ABiS International Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Difference in Dachsous Levels between Migrating Cells Coordinates the Direction of Collective Cell Migration2019

    • Author(s)
      Masaki Arata, Kaoru Sugimura, Tadashi Uemura
    • Organizer
      The 2nd NIBB-Princeton Joint Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] 実践 卵管学 、1章、 Celsr1による卵管機能の制御2020

    • Author(s)
      新田昌輝、藤森俊彦
    • Total Pages
      8
    • Publisher
      中外医学社
    • Related Report
      2020 Research-status Report
  • [Book] 生殖生理 5章 受精卵の移送と卵管内環境2019

    • Author(s)
      宇佐美文子、新田昌輝、藤森俊彦
    • Total Pages
      10
    • Publisher
      中山書店
    • ISBN
      9784521747613
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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