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Investigation of molecular mechanisms to drive oncogene expression

Research Project

Project/Area Number 20K07568
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionKanazawa University

Principal Investigator

Hazawa Masaharu  金沢大学, 新学術創成研究機構, 准教授 (40622460)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsnucleus / nuclear transport / gene regulation / genomic function / phase separation / super enhancer / squamous cell carcinoma / 核膜孔複合体 / スーパーエンハンサー / 遺伝子発現 / 扁平上皮癌 / 上皮分化
Outline of Research at the Start

扁平上皮癌(SCC)におけるマスター転写因子(MTF)は、SCCの悪性化に関わる遺伝子発現ネットワークを支配する。申請者はMTFの発現・核内移行を制御する新たな因子、ヌクレオポリン(NUP)を同定した。さらにその後の検討から、NUPはMTFの発現を誘導・維持することを見出した(未発表データ)。本研究では、このNUPによるMTFの発現に最適な核内DNA環境を構築する過程に着目し、SCC特異的MTFの発現が誘導され維持されるメカニズムの解明を目的とする。本研究成果は、MTFの発現環境を標的とするSCCの新たながん治療戦略の応用展開へ繋がる。

Outline of Final Research Achievements

This study aimed to elucidate the mechanisms by which the expression of the squamous cell carcinoma-specific master transcription factor TP63 is induced and maintained, focusing on the genomic structure and functional environment associated with nuclear architecture. The super-enhancers (SEs) that induce the expression of TP63 were visualized using DNA-FISH method, and their localization within the nuclear space was analyzed. It was revealed that several SEs, including TP63, localize near the nuclear pore. This localization was found to involve molecular interactions between SE component proteins and nuclear pore complex constituents. A method was devised to biochemically detect these molecular interactions, and by combining it with MS analysis, a comprehensive profiling of SE components and nuclear pore interaction factors was achieved.

Academic Significance and Societal Importance of the Research Achievements

本研究により、細胞の重要な機能発現に関わるマスター転写因子の発現量は、核構造と結びついた分子基盤により保証されていることが明らかとなった。とりわけ、ゲノムの空間的な配置に関わる分子基盤の一面が明らかとなり、これらを操作する低分子化合物開発がすすむことで、目的とする細胞分化誘導技術の創成やがん治療戦略につながることが期待される。
また、近年注目される相分離現象に関与するタンパク質の網羅的な解析技術基盤の開発にも成功し、この技術は核内相分離によるゲノムトポロジー形成機序の解明に役立ち、生命科学の発展に貢献することが期待できる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 Other

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

  • [Int'l Joint Research] University of Southern California(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Chinese Academy of Sciences(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 南カルフォニア大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] 中国科学院(中国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Cedars-Sinai, CA(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Overexpression of SARS-CoV-2 protein ORF6 dislocates RAE1 and NUP98 from the nuclear pore complex2021

    • Author(s)
      Kato Koki、Ikliptikawati Dini Kurnia、Kobayashi Akiko、Kondo Hiroya、Lim Keesiang、Hazawa Masaharu、Wong Richard W.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 536 Pages: 59-66

    • DOI

      10.1016/j.bbrc.2020.11.115

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] TP63, SOX2, and KLF5 Establish a Core Regulatory Circuitry That Controls Epigenetic and Transcription Patterns in Esophageal Squamous Cell Carcinoma Cell Lines.2020

    • Author(s)
      Jiang YY, Jiang Y, Li CQ, Zhang Y, Dakle P, Kaur H, Deng JW, Lin RY, Han L, Xie JJ, Yan Y, Doan N, Zheng Y, Mayakonda A, Hazawa M, Xu L, Li Y, Aswad L, Jeitany M, Kanojia D, Guan XY, Said JW, Yang W, Fullwood MJ, Lin DC, Koeffler HP.
    • Journal Title

      Gastroenterology

      Volume: 154 Issue: 4 Pages: 1311-1327

    • DOI

      10.1053/j.gastro.2020.06.050

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatiotemporally tracking of nano-biofilaments inside the nuclear pore complex core2020

    • Author(s)
      Mohamed Mahmoud Shaaban、Hazawa Masaharu、Kobayashi Akiko、Guillaud Laurent、Watanabe-Nakayama Takahiro、Nakayama Mizuho、Wang Hanbo、Kodera Noriyuki、Oshima Masanobu、Ando Toshio、Wong Richard W.
    • Journal Title

      Biomaterials

      Volume: 256 Pages: 120198-120198

    • DOI

      10.1016/j.biomaterials.2020.120198

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High-Speed AFM Reveals Molecular Dynamics of Human Influenza A Hemagglutinin and Its Interaction with Exosomes2020

    • Author(s)
      Lim Keesiang、Kodera Noriyuki、Wang Hanbo、Mohamed Mahmoud Shaaban、Hazawa Masaharu、Kobayashi Akiko、Yoshida Takeshi、Hanayama Rikinari、Yano Seiji、Ando Toshio、Wong Richard W.
    • Journal Title

      Nano Letters

      Volume: 20 Issue: 9 Pages: 6320-6328

    • DOI

      10.1021/acs.nanolett.0c01755

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Phase separation mediated super enhancer trapping by nuclear pore proteins in cell fate determination2022

    • Author(s)
      羽澤 勝治,Richard Wong
    • Organizer
      第74回日本細胞生物学会大会シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Nuclear pore tethers cell-type specific genes ensuring its expression and cell identity2022

    • Author(s)
      羽澤 勝治,Richard Wong
    • Organizer
      第95回日本生化学会大会シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] NUP153 drives oncogenic TP63 expression through liquid-liquid phase separation mediated gene-gating in squamous cancer2021

    • Author(s)
      Masaharu Hazawa, Takeshi Suzuki, Toshinari MinamotoRichard Wong
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 核膜孔複合体による核膜近傍での転写制御機構2021

    • Author(s)
      岩嶋友紀、羽澤勝治、Qui Yujia, Dini Kurnia Ikliptikawati, 西出梧朗、小林亜紀子、Lim Kee Siang, Richard Wong
    • Organizer
      第44回 日本分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Gene-expression regulation by nuclear pore complex in squamous cell carcinoma2020

    • Author(s)
      Masaharu Hazawa, Richard Wong
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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