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The elucidation of mechanisms and the development of novel therapeutic methods for mutant p53-induced EMT in lung cancer

Research Project

Project/Area Number 20H03770
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 55040:Respiratory surgery-related
Research InstitutionKyoto University

Principal Investigator

MENJU Toshi  京都大学, 医学研究科, 准教授 (30527081)

Co-Investigator(Kenkyū-buntansha) 佐藤 篤靖  京都大学, 医学研究科, 講師 (30706677)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords肺癌 / 上皮間葉転換 / 浸潤・転移 / EGFR変異 / p53変異 / 遺伝子改変マウス / 浸潤転移 / 遺伝子変異マウス / EGFR / p53遺伝子変異 / 上皮間葉転換(EMT) / Transgenic mouse / 薬剤スクリーニング / RNA-seq / 浸潤転移能 / 上皮間葉転換(EMT) / 変異p53誘導 / 肺癌悪性化 / p53 / 薬剤耐性 / 上皮間葉転換 (EMT) / 変異p53 / スタチン
Outline of Research at the Start

本研究は、癌細胞におけるEMTによる浸潤転移能を直接標的とする治療法の開発を行う。肺癌において変異型p53誘導性EMT活性化メカニズム解明と、新規治療薬創出に向けた創薬研究基盤の確立を目的とし、p53遺伝子変異誘導性EMTに基づく、肺癌悪性化進展機構解明、同EMT経路を標的とした化合物スクリーニングを施行する。さらにトランスジェニックマウスを用いたp53遺伝子変異発現とEMTによる腫瘍悪性化進展の検証や各driver mutationとの相互作用、ヒト臨床検体に対する薬剤の抗腫瘍性の確認を実施する。結果、新たな癌治療戦略を採ることが可能となり、癌治療のパラダイムシフトにつながることに期待できる。

Outline of Final Research Achievements

We confirmed the activation of EMT in lung cancer cell lines by p53 mutation and analyzed the differences by mutation type.We performed drug screening for compounds that inhibit TGFβ-induced EMT in the A549 lung cancer cell line, and we were able to select 7 drugs from approximately 2500 existing drugs and compounds, and several of them actually showed the inhibitory effect on EMT in lung cancer cell lines.
We generated genetically engineered mice by crossing EGFR mutant lung cancer mice with p53 mutant mice and found that p53 mutation yielded poorly differentiated tumors with solid components.Using the L-PDX method, we successfully transplanted human lung cancer into mice in 7 out of 9 resected specimens, and we developed a system for future studies to verify drug efficacy with PDX, which was published.

Academic Significance and Societal Importance of the Research Achievements

p53遺伝子変異が肺癌に段階的なEMT活性化を誘導することを実験で示し、これらの細胞株やマウス腫瘍細胞の解析により、今後のさらなるメカニズムの解明に役立つと考えられた。またEMT活性化には可塑性が認められ、見出した薬剤によりEMT抑制のための新規開発の始原となることが期待できる。
また実験系として、EMT抑制のためのドラッグスクリーニング系の新規開発やヒト肺癌細胞のPDXによるex vivo実験を可能とするL-PDX法の開発に成功し、これを論文化して、広く社会に知らしめることで、浸潤転移を抑制する新規薬剤によるがん治療のパラダイムシフトを起こす可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (5 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results)

  • [Journal Article] A novel cell-based assay for the high-throughput screening of epithelial?mesenchymal transition inhibitors: Identification of approved and investigational drugs that inhibit epithelial?mesenchymal transition2023

    • Author(s)
      Ishikawa Hiroyuki、Menju Toshi、Toyazaki Toshiya、Miyamoto Hideaki、Chiba Naohisa、Noguchi Misa、Tamari Shigeyuki、Miyata Ryo、Yutaka Yojiro、Tanaka Satona、Yamada Yoshito、Nakajima Daisuke、Ohsumi Akihiro、Hamaji Masatsugu、Okuno Yukiko、Date Hiroshi
    • Journal Title

      Lung Cancer

      Volume: 175 Pages: 36-46

    • DOI

      10.1016/j.lungcan.2022.11.015

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Journal Article] Lung fibrogenic microenvironment in mouse reconstitutes human alveolar structure and lung tumor2022

    • Author(s)
      Miyata Ryo、Hasegawa Koichi、Menju Toshi、Yoshizawa Akihiko、Watanabe Akira、Hirai Toyohiro、Date Hiroshi、Sato Atsuyasu
    • Journal Title

      iScience

      Volume: 25 Issue: 9 Pages: 104912-104912

    • DOI

      10.1016/j.isci.2022.104912

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nrf2/p?Fyn/ABCB1 axis accompanied by p?Fyn nuclear accumulation plays pivotal roles in vinorelbine resistance in non?small cell lung cancer2022

    • Author(s)
      Tamari Shigeyuki、Menju Toshi、Toyazaki Toshiya、Miyamoto Hideaki、Chiba Naohisa、Noguchi Misa、Ishikawa Hiroaki、Miyata Ryo、Kayawake Hidenao、Tanaka Satona、Yamada Yoshito、Yutaka Yojiro、Nakajima Daisuke、Ohsumi Akihiro、Hamaji Masatsugu、Date Hiroshi
    • Journal Title

      Oncology Reports

      Volume: 48 Issue: 4 Pages: 1-5

    • DOI

      10.3892/or.2022.8386

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High programmed death ligand 1 expression in carcinomatous components predicts a poor prognosis in pulmonary pleomorphic carcinoma2022

    • Author(s)
      Noguchi Misa、Menju Toshi、Nakajima Naoki、Yoshizawa Akihiko、Ohsumi Akihiro、Nakajima Daisuke、Hamaji Masatsugu、Haga Hironori、Date Hiroshi
    • Journal Title

      Surgery Today

      Volume: 52 Issue: 7 Pages: 1090-1095

    • DOI

      10.1007/s00595-021-02439-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lung cancer and epithelial-mesenchymal transition2021

    • Author(s)
      Toshi Menju, Hiroshi Date
    • Journal Title

      General Thoracic and Cardiovascular Surgery

      Volume: 5 Issue: 5 Pages: 781-789

    • DOI

      10.1007/s11748-021-01595-4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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