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Elucidation and challenge for the prediction of cancer clonal evolution and intra-tumor heterogeneity by computer simulation

Research Project

Project/Area Number 20K12071
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 62010:Life, health and medical informatics-related
Research InstitutionNational Cancer Center Japan

Principal Investigator

Kato Mamoru  国立研究開発法人国立がん研究センター, 研究所, 分野長 (40391916)

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: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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がん細胞進化 / 計算機シミュレーション / 個別化医療 / がんゲノム医療 / がん細胞 / シミュレーション / がんのクローン進化 / 腫瘍内多様性 / 個人化医療予測
Outline of Research at the Start

がん細胞のクローン進化は腫瘍内多様性を生み、患者の治療効果や予後に重大な影響を与える。研究代表者は、がん関連遺伝子の観測値データと6つのがんホールマークとを結び付けてがん細胞進化を模す、計算機シミュレーション・モデルを開発した。本研究ではプログラムを発展させ、患者のNGS由来VAF(変異のがん細胞集団頻度)データへの本格的な適用を実施し、がん細胞進化における具体的な遺伝子機能の役割を解明する。最終的には、どの遺伝子を遮断すれば、がん細胞数=10の12乗(死に至る細胞概数)に達するまでの時間を遅延できるかという、計算機シミュレーションによる個人化医療予測を可能にすることを目標とする。

Outline of Final Research Achievements

We performed cancer-cell evolutionary simulations on VAF (variant allele frequency) data from a 73-year-old male colorectal cancer patient in the TCGA (Cancer Genome Atlas) database, and predicted that blocking APC, KRAS, and PIK3CA aberrations will have no effect on cancer-cell growth, but, when blocking TP53 aberrations, the metastatic cells will not grow (Nagornov and Kato, 2020). Then, we changed the data representation from cell-based to clone-based and achieved great computational speed-up (Nagornov, Nishino, and Kato, 2020). In addition to point mutations, we implemented a model that incorporates CNAs (copy number alterations) and tumor purity (manuscript in preparation).

Academic Significance and Societal Importance of the Research Achievements

73歳大腸がん男性患者の実データを例に、遺伝子変異をNGS(次世代シークエンサー)で測定し、腫瘍内不均一性を考慮した数理シミュレーション・モデルを使って、個別化医療を実行する原理的可能性を、世界で初めて示した。どの遺伝子を遮断すればがん細胞が増殖しないか、数値シミュレーションで予測できる。これはすなわち、どの分子標的薬を使えば効果が見込めるかの、シミュレーションを用いた全く新しいタイプの個人化医療である。

Report

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

    (10 results)

All 2022 2021 2020 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] C-CAT: The National Datacenter for Cancer Genomic Medicine in Japan2022

    • Author(s)
      Kohno T, Kato M, Kohsaka S, Sudo T, Tamai I, Shiraishi Y, Okuma Y, Ogasawara D, Suzuki T, Yoshida T, Mano H
    • Journal Title

      Cancer Discov

      Volume: 12 Issue: 11 Pages: 2509-2515

    • DOI

      10.1158/2159-8290.cd-22-0417

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dataset of tugHall simulations of cell evolution for colorectal cancer2021

    • Author(s)
      Nagornov Iurii S.、Nishino Jo、Kato Mamoru
    • Journal Title

      Data in Brief

      Volume: 34 Pages: 106719-106719

    • DOI

      10.1016/j.dib.2021.106719

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] tugHall: A Tool to Reproduce Darwinian Evolution of Cancer Cells for Simulation-Based Personalized Medicine2020

    • Author(s)
      Nagornov Iurii、Nishino Jo、Kato Mamoru
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 12508 Pages: 71-76

    • DOI

      10.1007/978-3-030-64511-3_7

    • ISBN
      9783030645106, 9783030645113
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] tugHall: a simulator of cancer-cell evolution based on the hallmarks of cancer and tumor-related genes2020

    • Author(s)
      Nagornov Iurii S、Kato Mamoru
    • Journal Title

      Bioinformatics

      Volume: 36 Issue: 11 Pages: 3597-3599

    • DOI

      10.1093/bioinformatics/btaa182

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Cancer-cell evolution simulator based on genomic data for cancer personalized medicine2022

    • Author(s)
      Mamoru Kato
    • Organizer
      The 81st Annual Meeting of the Japanese Cancer Association
    • Related Report
      2022 Annual Research Report
  • [Presentation] Cancer-cell evolution simulator based on patient's genomic data for cancer personalized medicine2022

    • Author(s)
      Mamoru Kato
    • Organizer
      The Japanese Society for Mathematical Biology 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] tugHall version 3.0: a tool to simulate a personal evolution of cancer cells with copy number alterations2021

    • Author(s)
      Iurii Nagornov, Jo Nishino, and Mamoru Kato
    • Organizer
      ISMCO 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] tugHall: a tool to reproduce Darwinian evolution of cancer cells for simulation-based personalized medicine2020

    • Author(s)
      Iurii Nagornov
    • Organizer
      ISMCO 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A simulator of cancer-cell evolution toward a simulation-based personalized medicine2020

    • Author(s)
      加藤護
    • Organizer
      78rd Annual Meeting of the Japanese Cancer Association
    • Related Report
      2020 Research-status Report
  • [Remarks] 新しい個別化医療の理論―数値シミュレーション型個別化医療

    • URL

      https://www.ncc.go.jp/jp/ri/division/bioinformatics/project/2020_tugHall_01.mp4

    • Related Report
      2022 Annual Research Report

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

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