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Establishment of a minimally invasive, high-throughput method for early diagnosis of malignant mesothelioma

Research Project

Project/Area Number 21K07250
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionHyogo Medical University

Principal Investigator

Yoshikawa Yoshie  兵庫医科大学, 医学部, 准教授 (10566673)

Co-Investigator(Kenkyū-buntansha) 米田 和恵  兵庫医科大学, 医学部, 講師 (80724806)
江見 充  兵庫医科大学, 医学部, 特別招聘教授 (90221118)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords悪性中皮腫 / 変異 / ゲノムコピー数解析 / 予後予測 / ゲノムコピー数変化 / ゲノム不安定性 / digitalMLPA
Outline of Research at the Start

本研究は、極めて予後不良の腫瘍である悪性中皮腫(MM)の、低侵襲的な早期発見・再発モニタリングシステムを構築することが目的である。MMの変異形式は、塩基配列レベル変異よりゲノムコピー数変化、特に染色体破砕・再構成の結果、コピー数の低下/上昇が繰り返す激しいコピー数変化が生じている。後者は腫瘍組織では網羅的に捉えにくい。我々が開発したdigitalMLPAをMM用にさらに改良し、腫瘍組織でゲノムコピー数変化と患者予後・免疫チェックポイント阻害剤の有効性との関連解析を行う。並行し、極めて低頻度で腫瘍が混在する血中循環腫瘍細胞に本技術を適用し、低侵襲的な早期発見・再発モニタリングシステムを構築する。

Outline of Final Research Achievements

Malignant mesothelioma (MM) is an extremely poor prognosis tumor that is refractory to chemotherapy and other treatments. Sequence-level mutations are low at the level of pediatric cancers, and technically elusive microdeletions occur in multiple locations, resulting in genomic reorganization (chromothripsis-like patterns: CTLPs) and frequent biallelic deletions of specific tumor suppressor genes. To capture these changes, we developed a novel method, digital MLPA, to capture mutation patterns associated with MM patient prognosis.

Academic Significance and Societal Importance of the Research Achievements

次世代シーケンサーによる変異解析が普及しても、捉えるのが難しいのがstructural variants (SVs)であり、MMでは腫瘍が散在、もしくはリンパ球が浸潤したものが多いため腫瘍含有率が低くSV解析が極めて難しい。コピー数変化を伴わないSVは検出できないが、MMで高頻度に生じたエクソンや遺伝子単位の欠失や増幅を網羅的に簡便に捉えるため、新規手法digital MLPA を開発,前処理法も検討することでFFPE切片の解析も可能にした。結果、腫瘍含有率の低い予後良好者の解析が可能となり、予後の良・不良のMM検体間の変異比較を行ったことは、患者予後改善のための基礎データ取得の点で意義深い。

Report

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

    (13 results)

All 2023 2022 2021 Other

All Int'l Joint Research (6 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (3 results)

  • [Int'l Joint Research] ハワイ大学がんセンター(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] MRC-Holland(オランダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ハワイ大学がんセンター(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] MRC-Holland(オランダ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ハワイ大学がんセンター(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] MRC-Holland(オランダ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] デジタルMLPAを用いた腫瘍のゲノムコピー数解析2023

    • Author(s)
      吉川良恵
    • Journal Title

      兵庫医科大学医学会雑誌

      Volume: 47 Pages: 33-37

    • Related Report
      2022 Research-status Report
  • [Journal Article] BAP1 depletion in human B-lymphoblast cells affects the production of innate immune cytokines and chemokines.2022

    • Author(s)
      Takagi-Kimura M, Tada A, Kijima T, Kubo S, Ohmuraya M, Yoshikawa Y
    • Journal Title

      Genes to Cells.

      Volume: 27 (12) Issue: 12 Pages: 731-740

    • DOI

      10.1111/gtc.12988

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Medical and Surgical Care of Patients With Mesothelioma and Their Relatives Carrying Germline BAP1 Mutations.2022

    • Author(s)
      Carbone M, Pass HI, Ak G, Yang H, Yoshikawa Y, Zolondick A, Schrump DS, Hassan R. et al.
    • Journal Title

      Journal of Thoracic Oncology

      Volume: 17 (7) Issue: 7 Pages: 873-889

    • DOI

      10.1016/j.jtho.2022.03.014

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Risk prediction for metastasis of clear cell renal cell carcinoma using digital multiplex ligation‐dependent probe amplification2021

    • Author(s)
      Yoshikawa Yoshie、Yamada Yusuke、Emi Mitsuru、Atanesyan Lilit、Smout Jan、de Groot Karel、Savola Suvi、Nakanishi‐Shinkai Yukako、Kanematsu Akihiro、Nojima Michio、Ohmuraya Masaki、Hashimoto‐Tamaoki Tomoko、Yamamoto Shingo
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 1 Pages: 297-307

    • DOI

      10.1111/cas.15170

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Detection of characteristic copy number alterations for malignant pleural mesothelioma using digitalMLPA2023

    • Author(s)
      Yoshie Yoshikawa, Kazue Yoneda, Misato Kimura, Masaki Ohmuraya, Masaki Hashimoto, Nobuyuki Kondo, Ayuko Sato, Seiki Hasegawa, Tohru Tsujimura
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Copy number analysis of long-term preserved FFPE specimens from patients with malignant mesothelioma using digitalMLPA2022

    • Author(s)
      Yoshie Yoshikawa, Kazue Yoneda, Mitsuru Emi、Masaki Ohmuraya, Masaki Hashimoto,Nobuyuki Kondo、Seiki Hasegawa, Ayuko Sato, Tohru Tsujimura
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Landscaping of copy number alteration using digital MLPA in malignant mesothelioma; correlation with patient's prognosis2021

    • Author(s)
      Yoshie Yoshikawa、Mitsuru Emi、Kazue Yoneda、Masaki Ohmuraya、Masaki Hashimoto、Nobuyuki Kondo、Ayuko Sato、Seiki Hasegawa, Tohru Tsujimura
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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