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Genomic information in cytology archives; Toward precision medicine for the most refractory cancers

Research Project

Project/Area Number 21K15963
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionChiba University

Principal Investigator

Ohyama Hiroshi  千葉大学, 医学部附属病院, 講師 (10814600)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsがん遺伝子 / 悪性新生物 / 遺伝子変異 / ゲノミクス / 膵癌 / 胆道癌 / 次世代シークエンサー / 胆膵癌
Outline of Research at the Start

胆膵癌は80%以上が切除不能であり、予後不良な最難治癌である。ゲノム情報に基づく精密医療(Precision Medicine)時代が到来し、遺伝子変異を標的とした治療による予後の改善が期待されている。ゲノム情報を得るにはホルマリン固定パラフィン包埋(FFPE)組織が必須であるが、精密医療が最も切望される切除不能胆膵癌は手術検体が存在しないため応用困難である。我々は、FFPEの代替候補として腫瘍細胞を含む胆汁細胞診アーカイブスに着目した。本研究は、細胞診検体とFFPEのゲノム情報が一致するか、治療薬探索が可能か検証し、FFPEのない切除不能胆膵癌への精密医療の実現を目的とする。

Outline of Final Research Achievements

There are limitations in obtaining sufficient pancreaticobiliary tumor tissue for genomic profiling. We investigated whether archived cytological specimens (ACS) suit those tests. FFPE tissues and ACS from 44 patients with pancreaticobiliary disease were analyzed. We compared genomic profiles of FFPE and ACS from 19 patients with malignancies. We tested ACS from 25 patients for the ability to discriminate between malignant and benign disorders. We explored whether actionable and drug-matched mutations could be identified from ACS. Oncogenic mutations observed in ACS were 73% consistent with those identified in FFPE specimens. Genomic profiling using ACS discriminated malignant from benign disease with 93% accuracy, 91% sensitivity, and 100% specificity. Drug-matched mutations were identified in 32% of ACS and 21% of FFPE samples. In conclusion, ACS can discriminate malignancy and detect drug-matched mutations in patients with advanced pancreaticobiliary cancer.

Academic Significance and Societal Importance of the Research Achievements

本研究により、ACSは腫瘍組織と同様のゲノムプロファイルを有すること、ACSのゲノムプロファイリングにより高精度に良悪性を鑑別しうること、治療標的遺伝子変異の探索が可能であることが示された。ACSを用いてがんゲノムプロファイリングを実施することにより、最難治癌である胆膵癌の予後改善が期待される。胆膵癌で最も高頻度に検出されるKRAS変異については現在のところ有効な治療薬に乏しいが、薬剤開発の進展により恩恵を享受する対象が拡大することが期待される。

Report

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

    (24 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (16 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Development of a molecular barcode detection system for pancreaticobiliary malignancies and comparison with next-generation sequencing2024

    • Author(s)
      Ohyama Hiroshi、Hirotsu Yosuke、Amemiya Kenji、Mikata Rintaro、Amano Hiroyuki、Hirose Sumio、Oyama Toshio、Iimuro Yuji、Kojima Yuichiro、Mochizuki Hitoshi、Kato Naoya、Omata Masao
    • Journal Title

      Cancer Genetics

      Volume: 280-281 Pages: 6-12

    • DOI

      10.1016/j.cancergen.2023.12.002

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Liquid biopsy of wash samples obtained via endoscopic ultrasound‐guided fine‐needle biopsy: Comparison with liquid biopsy of plasma in pancreatic cancer2024

    • Author(s)
      Ohyama Hiroshi、Hirotsu Yosuke、Amemiya Kenji、Amano Hiroyuki、Hirose Sumio、Oyama Toshio、Iimuro Yuji、Kojima Yuichiro、Mikata Rintaro、Mochizuki Hitoshi、Kato Naoya、Omata Masao
    • Journal Title

      Diagnostic Cytopathology

      Volume: - Issue: 6 Pages: 325-331

    • DOI

      10.1002/dc.25306

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The efficacy of bile liquid biopsy in the diagnosis and treatment of biliary tract cancer2024

    • Author(s)
      Miura Yoshifumi、Ohyama Hiroshi、Mikata Rintaro、Hirotsu Yosuke、Amemiya Kenji、Mochizuki Hitoshi、Ikeda Junichiro、Ohtsuka Masayuki、Kato Naoya、Omata Masao
    • Journal Title

      Journal of Hepato-Biliary-Pancreatic Sciences

      Volume: - Issue: 5 Pages: 329-338

    • DOI

      10.1002/jhbp.1432

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of genomic profiling of circulating tumor DNA in pancreaticobiliary malignancies in plasma and bile2023

    • Author(s)
      Ohyama Hiroshi、Hirotsu Yosuke、Amemiya Kenji、Miura Yoshifumi、Hirose Sumio、Oyama Toshio、Iimuro Yuji、Kojima Yuichiro、Mikata Rintaro、Mochizuki Hitoshi、Kato Naoya、Omata Masao
    • Journal Title

      Cancer

      Volume: 129 Issue: 11 Pages: 1714-1722

    • DOI

      10.1002/cncr.34717

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Distinct Genomic Profiles of Two Small Malignant Lesions Associated With an Intraductal Papillary Mucinous Neoplasm Co-occurring in a Patient2023

    • Author(s)
      Ohyama Hiroshi、Hirotsu Yosuke、Mochizuki Hitoshi、Kato Naoya、Omata Masao
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.51394

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genomic profiling amplifies the utility of endoscopic ultrasound-guided fine needle biopsy by identifying clinically applicable druggable mutations in pancreatic cancer2022

    • Author(s)
      Ohyama Hiroshi、Mikata Rintaro、Hirotsu Yosuke、Amemiya Kenji、Miura Yoshifumi、Hirose Sumio、Oyama Toshio、Takano Atsushi、Iimuro Yuji、Kojima Yuichiro、Mochizuki Hitoshi、Ikeda Junichiro、Kato Naoya、Omata Masao
    • Journal Title

      Annals of Diagnostic Pathology

      Volume: 60 Pages: 152016-152016

    • DOI

      10.1016/j.anndiagpath.2022.152016

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Detection of actionable mutations in cytological specimens obtained by endoscopic ultrasound-guided fine needle aspiration with rapid onsite evaluation in pancreatic cancer2022

    • Author(s)
      Ohyama H, Hirotsu Y, Amemiya K, Amano H, Hirose S, Hosoda K, Oyama T, Iimuro Y, Kojima Y, Mikata R, Mochizuki H, Kato N, Omata M
    • Journal Title

      Annals of Diagnostic Pathology

      Volume: 60 Pages: 152008-152008

    • DOI

      10.1016/j.anndiagpath.2022.152008

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Detection of actionable mutations in archived cytological bile specimens2021

    • Author(s)
      Hiroshi Ohyama, Yosuke Hirotsu, Kenji Amemiya, Toshio Oyama, Yuji Iimuro, Yuichiro Kojima, Rintaro Mikata, Hitoshi Mochizuki, Naoya Kato, Masao Omata
    • Journal Title

      Journal of hepato-biliary-pancreatic sciences

      Volume: 28 Issue: 10 Pages: 837-847

    • DOI

      10.1002/jhbp.994

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Liquid biopsy of tumor-derived DNA in pancreaticobiliary malignancies in bile and plasma.2024

    • Author(s)
      Ohyama H
    • Organizer
      APASL 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 胆膵癌患者由来の液状検体に対する分子バーコードを用いたリキッドバイオプシー―ディープシーケンスとの比較―2023

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      JDDW2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 切除不能胆道癌における治療薬探索のための胆汁リキッドバイオプシー2023

    • Author(s)
      大山広、弘津陽介、雨宮健司、遠山翔大、天野博之、望月仁、加藤直也、小俣政男
    • Organizer
      第59回日本胆道学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 膵胆道癌の診断感度向上を目指した分子バーコード技術を用いた低侵襲ゲノム解析の試み2023

    • Author(s)
      大山広、弘津陽介、雨宮健司、天野博之、廣瀬純穂、飯室勇二、小山敏雄、小嶋裕一郎、望月仁、加藤直也、小俣政男
    • Organizer
      第54回日本膵臓学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] LIQUID BIOPSY FOR PANCREATICOBILIARY CANCER; MOLECULAR BARCODING VERSUS DEEP SEQUENCING2023

    • Author(s)
      Ohyama H, Kato N, Omata M
    • Organizer
      DDW 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 胆膵悪性腫瘍における胆汁リキッドバイオプシーの意義2023

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第109回日本消化器病学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] EUS-FNAにより得られた膵癌FFPE検体を活用した個別化医療の実現2022

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第108回日本消化器病学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 膵癌EUS-FNA検体を用いたクリニカルシークエンスとリキッドバイオプシーによる治療薬探索2022

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第103回日本消化器内視鏡学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] GENOMIC PROFILE OF ENDOSCOPIC ULTRASOUND-GUIDED FINE NEEDLE ASPIRATION IDENTIFIES CLINICALLY APPLICABLE DRUGGABLE MUTATIONS IN PANCREATIC CANCER2022

    • Author(s)
      Hiroshi Ohyama, Naoya Kato, Masao Omata
    • Organizer
      DDW 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Actionable mutations of malignant biliary tumors can be detected in archived biliary cytology specimens2022

    • Author(s)
      Hiroshi Ohyama, Naoya Kato, Masao Omata
    • Organizer
      APASL Oncology 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 胆膵悪性腫瘍における胆汁を用いたリキッドバイオプシー;血液との比較2022

    • Author(s)
      大山広、弘津陽介、雨宮健司、三浦義史、菅元泰、小山敏雄、飯室勇二、小嶋裕一郎、三方林太郎、千葉哲博、望月仁、加藤直也、小俣政男
    • Organizer
      第42回日本分子腫瘍マーカー研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 胆道狭窄における胆汁リキッドバイオプシーの可能性2022

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第58回日本胆道学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 治療標的遺伝子変異探索を目指した胆汁リキッドバイオプシー2022

    • Author(s)
      大山広、弘津陽介、雨宮健司、杉原地平、大内麻愉、菅元泰、永嶌裕樹、飯野陽太郎、高橋幸治、日下部裕子、沖津恒一郎、大野泉、望月仁、加藤直也、小俣政男
    • Organizer
      第60回日本癌治療学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] リキッドバイオプシーとしての胆汁ゲノム解析の可能性―血液との比較―2022

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第30回日本消化器関連学会週間
    • Related Report
      2022 Research-status Report
  • [Presentation] 胆汁ゲノムプロファイル解析は手術不能悪性胆道狭窄例において分子標的治療薬探索に有用である2021

    • Author(s)
      大山広、加藤直也、小俣政男、弘津陽介、雨宮健司、廣瀬純穂、日下部裕子、安井伸、杉山晴俊、大野泉、三方林太郎、小山敏雄、鷹野敦史、飯室勇二、望月仁
    • Organizer
      第57回日本胆道学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 胆道由来細胞診検体のゲノム解析による早期診断と分子標的治療薬の検出2021

    • Author(s)
      大山広、加藤直也、小俣政男
    • Organizer
      第29回日本消化器関連学会週間
    • Related Report
      2021 Research-status Report

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

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