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Novel Regulation of Cell Migration by the GTP Metabolic Compartment of the Leading Edge

Research Project

Project/Area Number 21K15019
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 43010:Molecular biology-related
Research InstitutionNational Cancer Center Japan

Principal Investigator

Kamata Ryo  国立研究開発法人国立がん研究センター, 先端医療開発センター, 特任研究員 (60801420)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords細胞遊走 / 代謝 / GTP / leading edge / migration / IMPDH / RAC / Compartmentalization
Outline of Research at the Start

がん細胞は低栄養および低酸素のストレス条件下であるにも関わらず、異常な細胞遊走の誘発が継続的に行われている。しかしながら、がん細胞はストレス条件下で、どのようにして継続的な細胞遊走をONにしているのか謎が多い。申請者らは細胞内エネルギー代謝の区画形成(Metabolic Compartmentalization)によって細胞遊走を制御するという新たなエネルギーシステムの存在を掴むに至った。そこで本研究はMetabolic Compartmentalizationに着目し、がん細胞の持続的な細胞遊走の分子メカニズムを明らかにすることで、がん治療戦略開発の新たな可能性を拓くことを目的としている。

Outline of Final Research Achievements

Cancer cells continuously induce abnormal cell migration despite low nutrition and hypoxia stress conditions. However, how cancer cells turn on continuous cell migration under stress conditions remains a mystery. We have identified a novel energy system that regulates cell migration by compartmentalizing intracellular energy metabolism. This study focuses on the metabolic compartmentalization of energy metabolism to elucidate the molecular mechanism of sustained cell migration of cancer cells, which may provide new possibilities for developing cancer therapy strategies.

Academic Significance and Societal Importance of the Research Achievements

本研究により、細胞内のGTPの分布は急峻な勾配を形成し、GTP生合成酵素群は細胞遊走先端部leading edgeに蓄積することを明らかにした。これまでに腫瘍形成・増殖における細胞内エネルギー物質“GTP (グアノシン三リン酸)”の役割と、GTP代謝の制御が治療標的になり得ることを報告している。これらの研究により癌の本態を解き明かし、新たな治療方法の確立に大きく貢献することが期待できる。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (9 results)

All 2021 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 2 results)

  • [Int'l Joint Research] シンシナティ大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] シンシナティ大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] トゥルク大学(フィンランド)

    • Related Report
      2021 Research-status Report
  • [Journal Article] SI-MOIRAI: a new method to identify and quantify the metabolic fate of nucleotides2021

    • Author(s)
      Ikeda Yoshiki、Hirayama Akiyoshi、Kofuji Satoshi、Hirota Yoshihisa、Kamata Ryo、Osaka Natsuki、Fujii Yuki、Sasaki Mika、Ikeda Satsuki、Smith Eric P、Bachoo Robert、Soga Tomoyoshi、Sasaki Atsuo T
    • Journal Title

      The Journal of Biochemistry

      Volume: 170 Issue: 6 Pages: 699-711

    • DOI

      10.1093/jb/mvab077

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Divergent Mechanisms Activating RAS and Small GTPases Through Post-translational Modification2021

    • Author(s)
      Osaka Natsuki、Hirota Yoshihisa、Ito Doshun、Ikeda Yoshiki、Kamata Ryo、Fujii Yuki、Chirasani Venkat R.、Campbell Sharon L.、Takeuchi Koh、Senda Toshiya、Sasaki Atsuo T.
    • Journal Title

      Frontiers in Molecular Biosciences

      Volume: 8 Pages: 1-12

    • DOI

      10.3389/fmolb.2021.707439

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] GTPエネルギー代謝のメカニカル制御が駆動するストレス-レジリエンスな細胞遊走2021

    • Author(s)
      鎌田 諒
    • Organizer
      日本分子生物学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] METHODS AND MOLECULAR PROBES FOR SUPER-RESOLUTION IMAGING AND QUANTIFICATION OF GUANINE NUCLEOTIDE TRIPHOSPHATE2021

    • Inventor(s)
      Ryo Kamata
    • Industrial Property Rights Holder
      Ryo Kamata
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] METHODS AND MOLECULAR PROBES FOR SUPER-RESOLUTION IMAGING AND QUANTIFICATION OF GUANINE NUCLEOTIDE TRIPHOSPHATE2021

    • Inventor(s)
      Atsuo Sasaki, Mika Sasaki
    • Industrial Property Rights Holder
      Atsuo Sasaki, Mika Sasaki
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] METHODS AND MOLECULAR PROBES FOR SUPER-RESOLUTION IMAGING AND QUANTIFICATION OF GUANINE NUCLEOTIDE TRIPHOSPHATE2021

    • Inventor(s)
      Harri Harma, Karri Kopra
    • Industrial Property Rights Holder
      Harri Harma, Karri Kopra
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas

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Published: 2021-04-28   Modified: 2024-01-30  

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