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Development of a miRNA Diagnostic Panel Using AI and Analysis of Interfluidic Transfer in Body Fluids of Patients with Pancreatic Cancer

Research Project

Project/Area Number 21K16436
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionChiba Cancer Center (Research Institute)

Principal Investigator

Ishige Fumitaka  千葉県がんセンター(研究所), 肝胆膵外科, 医長 (60815801)

Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords膵癌 / マイクロRNA / 次世代シーケンサー / バイオマーカー / 診断ツール / microRNA / NGS / miRNA
Outline of Research at the Start

今回我々は組織中、体液中(血液、尿、唾液)のmiRNAを解析の対象とする。膵癌患者に特異的なmiRNAを同定しスクリーニング検査の対象と成り得る候補を探索する。AI技術を用いて、早期膵癌、高リスク群同定、予後予測、治療予測等に関係するmiRNAを抽出し、それぞれのpanel診断法を作成する。また、各検体での発現を定量解析して比較することで体内を循環する間にどのような相互間での量的変化があるか、miRNA clusterを中心にそのメカニズム及び臨床的意義が何かを検討する。臨床病理学的因子とそれらの変化を比較検討することで癌の発生と進展のメカニズムの一端を解明したい。

Outline of Final Research Achievements

In this study, we attempted a comprehensive analysis of microRNAs (miRNAs) in the blood, urine, and saliva of patients with pancreatic cancer. We found that small RNAs in urine and saliva were not suitable for next-generation sequencing (NGS) due to low yield and poor reproducibility. On the other hand, using NGS, we successfully identified multiple miRNAs in plasma that were specific to pancreatic cancer and reflected disease progression. These miRNAs are expected to be useful for diagnosis, staging, and early detection of pancreatic cancer. In the future, we plan to validate these miRNAs using other modalities such as real-time PCR and aim to develop a simple, non-invasive diagnostic method. Although AI-based analysis was not performed in this study, it remains a future direction with potential applications in developing diagnostic support tools.

Academic Significance and Societal Importance of the Research Achievements

本研究では、膵癌患者の血液・尿・唾液中miRNAの網羅的解析を試みた。尿・唾液中small RNAは収量が少なく再現性も低いため、NGSによる解析には適さないことが判明し、媒体選択の重要性と技術的課題が示された。一方、血漿中miRNAでは膵癌に特異的なOncomir群を同定し、診断や病勢評価に応用可能な候補を得た。これらの成果は腫瘍バイオマーカー研究への新たな貢献となる。今後、同定されたOncomirを用いた非侵襲的診断法の確立が期待される。AI解析は未実施だが、将来的に診断パネル構築やデータ統合解析への応用が見込まれる。本研究は膵癌の早期診断と予後改善に資する意義を有する。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (4 results)

All 2025 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (1 results)

  • [Journal Article] Cell-free microRNA-1246 in different body fluids as a diagnostic biomarker for esophageal squamous cell carcinoma2021

    • Author(s)
      Hoshino Isamu、Ishige Fumitaka、Iwatate Yosuke、Gunji Hisashi、Kuwayama Naoki、Nabeya Yoshihiro、Yokota Hajime、Takeshita Nobuyoshi、Iida Keiko、Nagase Hiroki、Matsubara Hisahiro
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 3 Pages: e0248016-e0248016

    • DOI

      10.1371/journal.pone.0248016

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deep learning-based gene selection in comprehensive gene analysis in pancreatic cancer2021

    • Author(s)
      Mori Yasukuni、Yokota Hajime、Hoshino Isamu、Iwatate Yosuke、Wakamatsu Kohei、Uno Takashi、Suyari Hiroki
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-021-95969-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The usefulness of microRNA in urine and saliva as a biomarker of gastroenterological cancer2021

    • Author(s)
      Hoshino Isamu
    • Journal Title

      International Journal of Clinical Oncology

      Volume: - Issue: 8 Pages: 1431-1440

    • DOI

      10.1007/s10147-021-01911-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 膵癌を対象とした血漿中microRNAのNext-generation sequence解析とバイオマーカー探索2025

    • Author(s)
      石毛文隆
    • Organizer
      第125回日本外科学会定期学術集会
    • Related Report
      2024 Annual Research Report

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Published: 2021-04-28   Modified: 2026-01-16  

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