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Optimization of organoid culture system based on histology and driver mutations in lung cancer

Research Project

Project/Area Number 20K17765
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55040:Respiratory surgery-related
Research InstitutionKawasaki Medical School

Principal Investigator

Yoshida Masakazu  川崎医科大学, 医学部, 特任研究員 (30868914)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肺癌 / オルガノイド / 個別化医療
Outline of Research at the Start

近年、癌研究において各臓器癌由来のオルガノイドが樹立され、細胞株や遺伝子改変マウスに代わる新しい癌モデルとして用いられてきている。現在申請者らは、肺癌切除組織から肺癌オルガノイドの作製に成功している。しかしその樹立率は決して高くなく、肺癌増殖シグナルの多様性がその一因と考えられる。
本研究において、肺癌の組織型とドライバー変異の違いに着目し、オルガノイド培養法の最適化を行う。多彩なバックグラウンドを持つ個々の肺癌からのオルガノイド作製を効率化することは、患者個人の腫瘍に合わせた個別化治療の発展に貢献でき、また新薬開発やその効果予測、in vitroでの有害事象の検証に寄与することが期待できる。

Outline of Final Research Achievements

Recently, organoids derived from various cancers have been established and used as new cancer models to replace cell lines and genetically engineered mice in cancer research. In this study, we focused on histological differences and driver mutations of lung cancer, and optimized the organoid culture system. Normal organoids originating from normal lung epithelial cells reportedly proliferate faster and get replaced by cancer cells during the generation of lung cancer organoids, which is considered as one of the reasons for the failure of the establishment. By examining culture conditions for each histological type of lung cancer, we established an organoid culture system in an MDM2 inhibitor-free media, making it theoretically possible to establish organoids from a p53 wild-type lung cancer.

Academic Significance and Societal Importance of the Research Achievements

臨床病期Ⅰ期、Ⅱ期の非小細胞肺癌の根治術後、26%に局所や遠隔再発がみられている(Boyd et al. J Thorac Oncol 5: 210-4. 2010)。このような再発症例や、ドライバー変異不明肺癌から、オルガノイドを作製し、in vitroでの薬剤感受性試験を行うことで治療効果を予測できるようになる。オルガノイドが樹立法の改善は、個別化医療の進展や新規治療法開発のための基礎研究に寄与する。

Report

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

    (4 results)

All 2021 2020

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

  • [Journal Article] Clinical application of a lung cancer organoid (tumoroid) culture system2021

    • Author(s)
      Yokota Etsuko、Iwai Miki、Yukawa Takuro、Yoshida Masakazu、Naomoto Yoshio、Haisa Minoru、Monobe Yasumasa、Takigawa Nagio、Guo Minzhe、Maeda Yutaka、Fukazawa Takuya、Yamatsuji Tomoki
    • Journal Title

      npj Precision Oncology

      Volume: 5 Issue: 1 Pages: 29-29

    • DOI

      10.1038/s41698-021-00166-3

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 個別化医療のための切除肺癌組織由来オルガノイドの作製肺癌.2021

    • Author(s)
      深澤拓也,横田悦子,岩井美樹,湯川拓郎,羽井佐実,瀧川奈義夫,物部泰昌, 吉田将和,前田豊,Minzhe Guo, 猶本良夫.
    • Organizer
      第38回 日本呼吸器外科学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 肺癌オルガノイド培養システムの確立とその臨床応用.2021

    • Author(s)
      深澤拓也,横田悦子,岩井美樹,湯川拓郎,吉田将和,羽井佐実,瀧川奈義夫,猶本良夫, 前田豊,Minzhe Guo, 山辻知樹
    • Organizer
      第80回 日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 患者由来肺癌オルガノイドの樹立と個別化医療への応用2020

    • Author(s)
      横田悦子,深澤拓也,岩井美樹,湯川拓郎,吉田将和,羽井佐実,瀧川奈義夫,前田豊,山辻知樹
    • Organizer
      第61回日本肺癌学会学術集会
    • Related Report
      2020 Research-status Report

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

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