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Construction of diagnostic model of cholangiocarcinoma targeting of miRNA and lncRNA of cytological samples

Research Project

Project/Area Number 19K07415
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49020:Human pathology-related
Research InstitutionHiroshima University

Principal Investigator

Arihiro Koji  広島大学, 病院(医), 教授 (70232064)

Co-Investigator(Kenkyū-buntansha) 城間 紀之  広島大学, 病院(医), 助教 (30634927)
織田 麻琴  広島大学, 病院(医), 歯科診療医 (50814331)
内畠 由加里  広島大学, 病院(医), 臨床検査技師 (60816338)
鈴木 賢一  基礎生物学研究所, 新規モデル生物開発センター, 特任准教授 (90363043)
石田 克成  広島大学, 病院診療支援部, 部門長 (80769894)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords肝外胆管癌 / 胆管擦過細胞診 / 胆汁細胞診 / microRNA / qRT-PCR法 / 定量的解析 / 胆管癌 / miR-182 / 胆管癌培養細胞株 / HuCCT1 / miR-182 inhibitor / 細胞移動能 / 細胞浸潤能 / real time PCR法 / 絶対定量解析 / 胆管細胞診 / microRNAs / long non-coding RNA / 診断モデル
Outline of Research at the Start

胆管癌と非癌胆管組織の凍結組織を対象として次世代シークエンサーを用いてmiRNAとlncRNAの網羅的発現解析を行い複数の診断マーカーの候補を選出した。real time PCR法あるいはdigital PCR法を用いて診断マーカーのコピー数の定量的解析を行い、診断モデルの構築を図る。細胞診検体を対象とするvalidation studyを行い、診断モデルの有用性を検証する。更に胆汁などの細胞外液に含まれるエクソソーム内のmiRNAとlncRNAをそれぞれ抽出し、有用性を比較する。機能不明のmiRNAとlncRNAについては、肝内胆管癌細胞株と肝外胆管癌細胞株を用いて機能解析を行う。

Outline of Final Research Achievements

This study aimed to develop reliable biomarkers that improve the ability of bile cytology to diagnose cholangiocarcinoma versus benign biliary lesions.We analyzed the expression of five tumor-associated miRNAs (miR-31-5p, miR-122-5p, miR-378d, miR-182-5p, and miR-92a-3p) in cytology samples using quantitative reverse transcriptase polymerase chain reaction. We collected 52 surgically resected tissue samples, 84 cytological specimens from smears (53 cases of cancer and 31 cases of non-cancer), and 40 residual sediments after smearing for routine cytology.The expression of miR-31-5p, miR-378d, and miR-122-5p was significantly higher in cancer tissues than those in normal tissues, while miR-182-5p expression was lower. The expression of miR-31-5p, miR-378d, miR-182-5p, and miR-92a-3p was significantly higher in detached cell samples from smears of cholangiocarcinoma cases than in those from non-cancer cases.

Academic Significance and Societal Importance of the Research Achievements

良性疾患の患者と比較して肝外胆管癌患者の胆汁細胞診検体で、複数のmicroRNAの発現レベルが高いことを明らかにした。また胆管細胞診標本の補助判定としてmicroRNAの発現を解析し、miR-182-5pの発現が細胞診でAtypicalと診断された悪性例と良性例を区別できることを示した。胆汁細胞診標本におけるmicroRNAの定量的解析は、客観的な診断補助として有用である。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (5 results)

All 2022 2021 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Analysis of MicroRNA in Bile Cytologic Samples Is Useful for Detection and Diagnosis of Extrahepatic Cholangiocarcinoma2022

    • Author(s)
      Uchihata Yukari、Arihiro Koji、Kaneko Yoshie、Shimizu Tomomi、Marubashi Yukari、Aoki Chie、Murakami Takuya、Ochi Mayu、Niihara Nanaka、Ohtsuka Kohei、Unehara Rimu、Araki Yusuke、Seki Yoshinaga、Mori Keiichi、Oda Miyo、Ishida Katsunari
    • Journal Title

      American Journal of Clinical Pathology

      Volume: 2022 Feb 14;aqac015 Issue: 1 Pages: 122-131

    • DOI

      10.1093/ajcp/aqac015

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of microRNA Expression in Liquid-Based Cytology Samples May Be Useful for Primary Lung Cancer Diagnosis.2021

    • Author(s)
      Araki Y, Arihiro K, Yamaguchi K, Sakamoto S, Horimasu Y, Masuda T, Miyamoto S, Nakashima T, Iwamoto H, Fujitaka K, Hamada H, Hattori N.
    • Journal Title

      Am J Clin Pathol.

      Volume: N/A Issue: 4 Pages: 644-652

    • DOI

      10.1093/ajcp/aqaa278

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 胆汁細胞診の精度向上のためにmicroRNAの検索は臨床応用可能か?2019

    • Author(s)
      内畠由加里,有廣光司,新原菜香,村上拓也,越智真悠,青木知恵,丸橋由加里,清水智美,金子佳恵,石田克成,尾田三世,森馨一,織田麻琴,城間紀之
    • Organizer
      第58回日本臨床細胞学会秋期大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 膵臓の超音波内視鏡下穿刺吸引細胞診検体を対象としたmicroRNA検索の試み2019

    • Author(s)
      織田麻琴,有廣光司,城間紀之,森馨一,尾田三世,石田克成,高井チカ子,金子佳恵,清水智美,丸橋由加里,青木知恵,越智真悠,内畠由加里,村上拓也,新原菜香
    • Organizer
      第58回日本臨床細胞学会秋期大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 胆汁細胞診におけるmicroRNA検索の有用性2019

    • Author(s)
      内畠由加里, 有廣光司,新原菜香,村上拓也,越智真悠,青木知恵,丸橋由加里,清水智美,金子佳恵,石田克成,尾田三世,森馨一,織田麻琴,城間紀之
    • Organizer
      第34回日本臨床細胞学会中国四国連合会総会・学術集会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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