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History of cell shape changes and cell-fate determination in asymmetric division

Research Project

Project/Area Number 17K19398
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Biology of Cells to Organisms, and related fields
Research InstitutionKeio University

Principal Investigator

Akanuma Takashi  慶應義塾大学, 医学部(信濃町), 助教 (50450721)

Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywordsゼブラフィッシュ / ライブイメージング / 運命決定 / ゲノム編集 / ノックイン / 発生・分化 / 定量解析 / 形 / 非遺伝的
Outline of Final Research Achievements

In this study, I first developed a simple and rapid method of homologous recombination-based gene targeting to generate genetically modified zebrafish in which fluorescent proteins are expressed in a cell type-specific manner. Injection of the donor DNA comprising fluorescent protein fragments and long (~3kb) homology arms together with chromatin modifier inhibitors into fertilized zebrafish eggs results in efficient targeting at the predetermined genomic location. Using my novel gene targeting method, I created transgenic zebrafish which expresses the membrane-bound GFP protein in V2 interneuron progenitors (V2 cells). Through the imaging analysis of this zebrafish, I succeeded in recording the V2 cell behaviors over a long time and identified characteristic features of V2 cell shape change. Now I am investigating the relationship between the cell shape change history and fate determination of daughter cells after the asymmetric V2 cell division.

Academic Significance and Societal Importance of the Research Achievements

CRISPR-Cas9システムを用いたゲノム編集は、近年盛んに行われているが、ゼブラフィッシュでは効率の面で課題があった。これに対し本研究課題の成果であるCRISPR-Cas9システムを使わない遺伝子改変技術により、従来よりも簡便に遺伝子改変ゼブラフィッシュを作製できるようになると思われる。そして、ゼブラフィッシュモデルの特長であるイメージング解析にとって有用なトランスジェニックラインが今まで以上に作られるようになり、発生学のみならず様々な分野で活用されることが期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2018 2017

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

  • [Journal Article] Generation and application of human induced-stem cell memory T cells for adoptive immunotherapy.2018

    • Author(s)
      Taisuke Kondo Yuki Imura Shunsuke Chikuma Sana Hibino Setsuko Omata‐Mise Makoto Ando Takashi Akanuma Mana Iizuka Ryota Sakai Rimpei Morita Akihiko Yoshimura
    • Journal Title

      Cancer Science

      Volume: 109 Issue: 7 Pages: 2130-2140

    • DOI

      10.1111/cas.13648

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement of Foxp3 stability through CNS2 demethylation by TET enzyme induction and activation2017

    • Author(s)
      Someya Kazue、Nakatsukasa Hiroko、Ito Minako、Kondo Taisuke、Tateda Kenn-ichi、Akanuma Takashi、Koya Ikuko、Sanosaka Tsukasa、Kohyama Jun、Tsukada Yu-ichi、Takamura-Enya Takeji、Yoshimura Akihiko
    • Journal Title

      International Immunology

      Volume: 29 Issue: 8 Pages: 365-375

    • DOI

      10.1093/intimm/dxx049

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Negative Regulation of Cytokine Signaling in Immunity2017

    • Author(s)
      Yoshimura Akihiko、Ito Minako、Chikuma Shunsuke、Akanuma Takashi、Nakatsukasa Hiroko
    • Journal Title

      Cold Spring Harbor Perspectives in Biology

      Volume: - Issue: 7 Pages: a028571-a028571

    • DOI

      10.1101/cshperspect.a028571

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Induction and maintenance of regulatory T cells by transcription factors and epigenetic modifications2017

    • Author(s)
      Iizuka-Koga Mana、Nakatsukasa Hiroko、Ito Minako、Akanuma Takashi、Lu Qianjin、Yoshimura Akihiko
    • Journal Title

      Journal of Autoimmunity

      Volume: 83 Pages: 113-121

    • DOI

      10.1016/j.jaut.2017.07.002

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] In vivo imaging of immune cells using transgenic zebrafish2018

    • Author(s)
      Takashi Akanuma, Akihiko Yoshimura
    • Organizer
      日本免疫学会学術集会
    • Related Report
      2018 Annual Research Report

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Published: 2017-07-21   Modified: 2020-03-30  

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