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Clarification of sequencing errors in all patients who underwent cancer gene panel testing in Japan

Research Project

Project/Area Number 22K15571
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionTokyo Metropolitan Hospital Organization Tokyo Metropolitan Komagome Hospital

Principal Investigator

Ikegami Masachika  地方独立行政法人東京都立病院機構東京都立駒込病院(臨床研究室), 骨軟部腫瘍科, 医長 (90830521)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsがんゲノムプロファイリング / FFPEアーチファクト / がんゲノムプロファイリング検査 / がん遺伝子パネル検査 / FFPE由来エラー / シークエンスアーチファクト
Outline of Research at the Start

がんのクリニカルシークエンスはホルマリン固定パラフィン包埋(FFPE)処理された手術検体を用いて行われる。検体のFFPE処理はゲノムDNAの損傷を引き起こし、シークエンスエラーを引き起こす。申請者はFFPE検体にみられるシークエンスエラーの発生原理を特定、エラー除去アルゴリズムであるMicroSECを開発した。本研究課題の目的は、MicroSECを用いてがんゲノム情報管理センターに集積されている約2万症例から検出された変異情報を解析し、患者に報告された変異のうちエラーが占める割合を明らかにし、ビッグデータを用いた機械学習に基づく新規シークエンスエラー予測アルゴリズムを開発することである。

Outline of Final Research Achievements

We analyzed sequencing data from the development phase of the NCC OncoPanel and showed that 40% of the mutations called by the pipeline are FFPE artifacts, and that a small number of FFPE artifacts are annotated with pathological mutations. Furthermore, we created a machine learning algorithm to predict FFPE artifacts for the large number of mutations reported in the AACR project GENIE, and confirmed that the error frequency differs among gene panels. Although the study is not yet complete due to the delay in the release of raw data from C-CAT, the implementation system is in place, and we aim to clarify the necessity and significance of FFPE artifact removal and implement it in clinical practice in the future.

Academic Significance and Societal Importance of the Research Achievements

がんゲノム医療において、検出された変異が真の変異なのかエラーなのか不確実な状態では、仮に遺伝子変異にマッチした治療が存在したとしても実施に踏み切ることに心理的抵抗が生じ、また無意味な治療が行われるリスクもある。本研究はNCCオンコパネルの開発時点のデータではあるが治療選択に影響を与えうるエラーがあることを明らかとし、エラー予測アルゴリズムの臨床実装の必要があることが確認できた。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 Other

All Journal Article (12 results) (of which Peer Reviewed: 9 results,  Open Access: 11 results) Presentation (5 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] 骨軟部腫瘍の遺伝子解析とそのClinical Relevance2024

    • Author(s)
      小倉浩一、池上政周、川井章
    • Journal Title

      癌と化学療法

      Volume: 51(3) Pages: 259-262

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Prognostic factors and treatment outcomes in patients with pleomorphic rhabdomyosarcoma: a population-based cohort study2024

    • Author(s)
      Kobayashi Hiroshi、Okajima Koichi、Zhang Liuzhe、Hirai Toshihide、Ishibashi Yuki、Tsuda Yusuke、Ikegami Masachika、Kawai Akira、Tanaka Sakae
    • Journal Title

      Japanese Journal of Clinical Oncology

      Volume: 54 Issue: 4 Pages: 471-478

    • DOI

      10.1093/jjco/hyad188

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Factors predictive of second‐line chemotherapy in soft tissue sarcoma: An analysis of the National Genomic Profiling Database2023

    • Author(s)
      Mochizuki Takao、Ikegami Masachika、Akiyama Toru
    • Journal Title

      Cancer Science

      Volume: 115 Issue: 2 Pages: 575-588

    • DOI

      10.1111/cas.16050

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Letter to the editor: left-truncation bias should be considered in prognostic analysis using National Genomic Profiling Database2023

    • Author(s)
      Ikegami Masachika
    • Journal Title

      Japanese Journal of Clinical Oncology

      Volume: 53 Issue: 11 Pages: 1091-1091

    • DOI

      10.1093/jjco/hyad098

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] Calcified deep somatic soft tissue leiomyoma of the leg: A case report2023

    • Author(s)
      Senga Kazunori、Ikegami Masachika、Koiwa Sora、Takamiya Akihiro、Motoi Toru
    • Journal Title

      SAGE Open Medical Case Reports

      Volume: 11 Pages: 1-5

    • DOI

      10.1177/2050313x231197529

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] KDM2B-Rearranged Soft Tissue Sarcomas Expand the Concept of BCOR-Associated Sarcoma2023

    • Author(s)
      Motoi Toru、Hirata Makoto、Kukita Yoji、Satomi Kaishi、Tamura Hiromi、Adachi Shiro、Matsushita Yuko、Horiguchi Shin-ichiro、Hishima Tsunekazu、Ikegami Masachika、Okuma Tomotake、Tao Kayoko、Arakawa Ayumu、Ogawa Chitose、Matsuda Koichi、Ichimura Koichi、Nakamura Harumi、Mori Taisuke、Yoshida Akihiko
    • Journal Title

      Modern Pathology

      Volume: 36 Issue: 11 Pages: 100317-100317

    • DOI

      10.1016/j.modpat.2023.100317

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Extensive analysis of 59 sarcoma‐related fusion genes identified pazopanib as a potential inhibitor to <scp><i>COL1A1‐PDGFB</i></scp> fusion gene2023

    • Author(s)
      Hirose Takeshi、Ikegami Masachika、Kojima Shinya、Yoshida Akihiko、Endo Makoto、Shimada Eijiro、Kanahori Masaya、Oyama Ryunosuke、Matsumoto Yoshihiro、Nakashima Yasuharu、Kawai Akira、Mano Hiroyuki、Kohsaka Shinji
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 10 Pages: 4089-4100

    • DOI

      10.1111/cas.15915

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PTPN11 variant may be a prognostic indicator of IDH-wildtype glioblastoma in a comprehensive genomic profiling cohort2023

    • Author(s)
      Otani Ryohei、Ikegami Masachika、Yamada Ryoji、Yajima Hirohisa、Kawamura Shinji、Shimizu Sakura、Tanaka Shota、Takayanagi Shunsaku、Takami Hirokazu、Yamaguchi Tatsuro
    • Journal Title

      Journal of Neuro-Oncology

      Volume: 164 Issue: 1 Pages: 221-229

    • DOI

      10.1007/s11060-023-04411-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] BRAF mutations and concurrent alterations in patients with soft tissue sarcoma2023

    • Author(s)
      Kobayashi Hiroshi、Zhang Liuzhe、Okajima Koichi、Ishibashi Yuki、Hirai Toshihide、Tsuda Yusuke、Ikegami Masachika、Kage Hidenori、Shinozaki‐Ushiku Aya、Oda Katsutoshi、Tanaka Sakae
    • Journal Title

      Genes, Chromosomes and Cancer

      Volume: 62 Issue: 11 Pages: 648-654

    • DOI

      10.1002/gcc.23182

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prognostic benefit of comprehensive genomic profiling in clinical practice remains uncertain2023

    • Author(s)
      Ikegami Masachika
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 7 Pages: 3053-3055

    • DOI

      10.1111/cas.15826

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Open Access
  • [Journal Article] The pathogenic role of the BRCA2 c.7847C>T (p.Ser2616Phe) variant in breast and ovarian cancer predisposition2023

    • Author(s)
      Yamazawa Kazuki、Sugano Kokichi、Tanakaya Kohji、Inoue Satomi、Murakami Haruka、Nakashima Moeko、Adachi Masataka、Oki Shinya、Makabe Takeshi、Yamashita Hiroshi、Ueki Arisa、Sasaoka Ayako、Nakashoji Ayako、Kinoshita Takayuki、Matsunaga Tatsuo、Arai Masami、Nakamura Seigo、Miyata Hiroaki、Ikegami Masachika, et al.
    • Journal Title

      Cancer Science

      Volume: - Issue: 7 Pages: 2993-3002

    • DOI

      10.1111/cas.15799

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Selection bias due to delayed comprehensive genomic profiling in Japan2022

    • Author(s)
      Tamura Taichi、Ikegami Masachika、Kanemasa Yusuke、Yomota Makiko、Furusawa Akiko、Otani Ryohei、Saita Chiaki、Yonese Ichiro、Onishi Tomoko、Kobayashi Hiroshi、Akiyama Toru、Shimoyama Tatsu、Aruga Tomoyuki、Yamaguchi Tatsuro
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 3 Pages: 1015-1025

    • DOI

      10.1111/cas.15651

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Extensive analysis of 59 sarcoma-related fusion genes identified pazopanib as a potential inhibitor to COL1A1- PDGFB fusion gene2024

    • Author(s)
      池上政周
    • Organizer
      第21回日本臨床腫瘍学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] コンパニオン診断以外での包括的がんゲノムプロファイリングの活用 軟部肉腫の薬剤選択2024

    • Author(s)
      池上政周
    • Organizer
      第21回日本臨床腫瘍学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Validation of pathogenic germline variant presuming method by Kosugi with tumor-normal pair cancer panel2023

    • Author(s)
      池上政周
    • Organizer
      第82回日本癌学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] C-CAT利活用情報に基づく 軟部肉腫の2nd-line chemotherapyの奏効因子の検討2023

    • Author(s)
      池上政周
    • Organizer
      第56回日本整形外科学会骨・軟部腫瘍学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] MicroSEC: Sequence error filtering pipeline for formalin-fixed and paraffin-embedded samples2022

    • Author(s)
      Masachika Ikegami
    • Organizer
      AACR Annual Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Remarks] MicroSEC R言語用パッケージ

    • URL

      https://github.com/MANO-B/MicroSEC

    • Related Report
      2023 Annual Research Report
  • [Remarks] MicroSEC website

    • URL

      https://github.com/MANO-B/MicroSEC

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

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