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Establishment of genomic therapy for lung cancer using comprehensive biological information

Research Project

Project/Area Number 20K17763
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55040:Respiratory surgery-related
Research InstitutionKindai University

Principal Investigator

Hamada Akira  近畿大学, 医学部, 講師 (80772954)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords肺がん / ゲノム / 網羅的生体情報 / VUS / HER2 / HER4 / EGFR / 分子標的治療 / 肺癌
Outline of Research at the Start

本研究では、EGFR・HER2・MET・ALK・ROS1・BRAFなど肺がんでその活性化が報告されている臨床的意義が不明な遺伝子変異(VUS)に着目し、レトロウイルスによりVUSを導入した人工的な腫瘍細胞モデルを用いてVUS病原性と標的治療薬のスクリーニングを行って臨床的意義を明らかにする。VUSが主要な遺伝子変異と同時に存在すること(Compound mutation)も多いため、VUSと主要な遺伝子変異を同時に導入して、その意義を検討する。本研究は同一遺伝子異常を有する臓器を超えた様々ながん腫に適応できる可能性があり、肺がん以外のがん腫に対しても治療成績の改善に寄与することが期待される。

Outline of Final Research Achievements

A secondary analysis of the LUX-Lung 8 randomized trial identified the variants of unknown significance (VUS) of HER2/HER4 mutations. The HER2 and HER4 mutations were transduced into the mouse pro-B cell line to determine changes in interleukin-3 (IL-3) dependence to evaluate the transforming ability of them. As a result, only the 3 HER2 mutations E395K, G815R, and R929W showed transforming ability, suggesting that these mutations may benefit from HER2-TKI treatment. These results were reported in the journal of Lung Cancer. We also explored on-target acquired resistance mechanisms (secondary mutations) to mobocertinib, which was recently approved by the U.S. Food and Drug Administration for patients with NSCLC having in-frame insertion in exon 20 of EGFR (X20ins.), using Ba/F3 models harboring X20ins..

Academic Significance and Societal Importance of the Research Achievements

近年、次世代シーケンサを用いた遺伝子解析が広く用いられるようになり、既知の遺伝子異常だけでなく、臨床的意義が不明な遺伝子変異(VUS)も多数同定され、これらVUSの機能解析が求められている。本研究では、LUX-Lung 8 試験の二次解析で同定されたHER2、HER4のVUSの機能解析を、IL-3依存性細胞株である、マウスpro-B細胞株(Ba/F3細胞)に導入し、人工的な腫瘍細胞モデルを作成し評価した。その結果、3つのHER2遺伝子変異に対してHER2阻害効果のあるTKIが有効であることを明らかにし、これらの遺伝子変異を有する患者に対する治療の可能性を示した。

Report

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

    (8 results)

All 2024 2023 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Secondary Mutations of the EGFR Gene That Confer Resistance to Mobocertinib in EGFR Exon 20 Insertion2024

    • Author(s)
      Hamada Akira、Suda Kenichi、Nishino Masaya、Obata Keiko、Oiki Hana、Fukami Tomoyo、Fukuda Shota、Fujino Toshio、Ohara Shuta、Koga Takamasa、Chiba Masato、Shimoji Masaki、Ito Masaoki、Takemoto Toshiki、Soh Junichi、Tsutani Yasuhiro、Mitsudomi Tetsuya
    • Journal Title

      Journal of Thoracic Oncology

      Volume: 19 Issue: 1 Pages: 71-79

    • DOI

      10.1016/j.jtho.2023.08.029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prognostic role of preoperative fluorine-18 fluorodeoxyglucose-positron emission tomography/computed tomography with an image-based harmonization technique: A multicenter retrospective study2023

    • Author(s)
      Hamada A, Kitajima K, Suda K, Koga T, Soh J, Kaida H, Ito K, Sekine T, Takegahara K, Daisaki H, Hashimoto M, Yoshida Y, Kabasawa T, Yamasaki T, Hirota S, Usuda J, Ishii K, Mitsudomi T.
    • Journal Title

      JTCVS Open

      Volume: 14 Pages: 502-22

    • DOI

      10.1016/j.xjon.2023.02.004

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Presence of a Ground-Glass Opacity Component Is the True Prognostic Determinant in Clinical Stage I NSCLC2022

    • Author(s)
      Hamada Akira、Suda Kenichi、Fujino Toshio、Nishino Masaya、Ohara Shuta、Koga Takamasa、Kabasawa Takanobu、Chiba Masato、Shimoji Masaki、Endoh Makoto、Takemoto Toshiki、Soh Junichi、Yanagawa Naoki、Shiono Satoshi、Mitsudomi Tetsuya
    • Journal Title

      JTO Clinical and Research Reports

      Volume: 3 Issue: 5 Pages: 100321-100321

    • DOI

      10.1016/j.jtocrr.2022.100321

    • Related Report
      2022 Research-status Report
  • [Journal Article] In vitro validation study of HER2 and HER4 mutations identified in an ad hoc secondary analysis of the LUX-Lung 8 randomized clinical trial.2021

    • Author(s)
      Hamada A, Suda K, Koga T, Fujino T, Nishino M, Ohara S, Chiba M, Shimoji M, Takemoto T, Soh J, Uchida T, Mitsudomi T.
    • Journal Title

      Lung Cancer

      Volume: 162 Pages: 79-85

    • DOI

      10.1016/j.lungcan.2021.10.014

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] In Vitro Study of Mechanisms of Acquired Resistance for Mobocertinib in Cells with EGFR exon-20 insertion mutations2022

    • Author(s)
      Akira Hamada, Kenichi Suda, Shota Fukuda, Masaya Nishino, Shuta Ohara, Masato Chiba, Masaki Shimoji, Toshiki Takemoto, Junichi Soh, Yasuhiro Tsutani, Tetsuya Mitsudomi
    • Organizer
      IASLC 2022 Asia Conference on Lung Cancer
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Presence of Ground Glass Opacity Component is True Determinant of Prognosis in Clinical Stage I Non-Small Cell Lung Cancer2021

    • Author(s)
      Akira Hamada, Kenichi Suda, Shuta Ohara, Masato Chiba, Masaki Shimoji, Makoto Endo, Toshiki Takemoto, Junichi Soh, Satoshi Shiono, Tetsuya Mitsudomi
    • Organizer
      2021 World Conference on Lung Cancer
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] In Vitro Validation Study for HER2 Mutations Identified in Secondary Analysis of the LUX-Lung 8 Randomized Clinical Trial2021

    • Author(s)
      Akira Hamada, Kenichi Suda, Toshio Fujino, Masaya Nishino, Takamasa Koga, Shuta Ohara, Masato Chiba, Toshiki Takemoto, Junichi Soh, Tetsuya Mitsudomi
    • Organizer
      2020 World Conference on Lung Cancer
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] In Vitro Study for Afatinib Efficacy in Lung Squamous Cell Carcinoma with HER2 Mutations Identified in LUX-Lung 8 Trial2020

    • Author(s)
      Akira Hamada, Kenichi Suda, Toshio Fujino, Shuta Ohara, Junichi Soh, Tetsuya Mitsudomi
    • Organizer
      第79回日本癌学会学術集会
    • Related Report
      2020 Research-status Report

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

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