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Postoperative plasma and urinary circulating tumor DNA monitoring in upper tract urothelial carcinoma

Research Project

Project/Area Number 21K09353
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56030:Urology-related
Research InstitutionIwate Medical University

Principal Investigator

Obara Wataru  岩手医科大学, 医学部, 教授 (90337155)

Co-Investigator(Kenkyū-buntansha) 西塚 哲  岩手医科大学, 医歯薬総合研究所, 特任教授 (50453311)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords泌尿器科学 / 上部尿路上皮癌 / バイオマーカー / ctDNA / digital PCR / リキッドバイオプシー
Outline of Research at the Start

本研究では、上部尿路上皮癌の診断で手術をうけた手術検体から抽出したDNAを用いて上部尿路上皮癌に特徴的な変異遺伝子を同定する。そして、上部尿路上皮癌の患者の血中・尿中に含まれる循環腫瘍由来血中DNA (circulating tumor DNA;ctDNA)を手術前後でモニタリングし、上部尿路上皮癌の術後再発、転移の早期発見に対する有用性を検証する。

Outline of Final Research Achievements

In this study, we aim to evaluate the utility of individualized ctDNA monitoring using digital polymerase chain reaction (dPCR) as a tumor recurrence biomarker for UTUC in the perioperative period.
Twenty-three patients with upper tract urothelial carcinoma were included. In each patient, case-specific mutations were selected and performed plasma and urinary ctDNA monitoring. All patients with postoperative recurrence had case-specific ctDNA at the time of recurrence. Moreover, the change rate of urinary ctDNA between pre operation and day 2 after operation was identified as a prognostic factor associated with short recurrence free survival.
Plasma and urinary ctDNA might be a minimally invasive biomarker for the detection of postoperative recurrence.

Academic Significance and Societal Importance of the Research Achievements

上部尿路上皮癌はバイオマーカーに乏しく、低侵襲のバイオマーカーが望まれている。ctDNAは近年癌に対するバイオマーカーとしての妥当性が報告されている。ctDNA解析のためのサンプルは血液を用いることが多いが、尿もサンプルとして有用と考えられる。上部尿路上皮癌において血液と尿の両者を用いてctDNA解析を行った研究はこれまでになく、本研究により、上部尿路上皮癌においてctDNAモニタリングは新たな低侵襲バイオマーカーとなりうる可能性が示唆された。さらに、ctDNAの変化が再発予測に有用である可能性が示唆され、術後補助療法の治療選択の一助となる可能性が示唆される。

Report

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

    (14 results)

All 2024 2023 2022 2021 Other

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

  • [Journal Article] Postoperative recurrence detection using individualized circulating tumor <scp>DNA</scp> in upper tract urothelial carcinoma2023

    • Author(s)
      Tamura Daichi、Abe Masakazu、Hiraki Hayato、Sasaki Noriyuki、Yashima‐Abo Akiko、Ikarashi Daiki、Kato Renpei、Kato Yoichiro、Maekawa Shigekatsu、Kanehira Mitsugu、Takata Ryo、Maejima Kazuhiro、Sasagawa Shota、Fujita Masashi、Suzuki Yutaka、Nakagawa Hidewaki、Iwaya Takeshi、Nishizuka Satoshi S.、Obara Wataru
    • Journal Title

      Cancer Science

      Volume: 115 Issue: 2 Pages: 529-539

    • DOI

      10.1111/cas.16025

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 上部尿路上皮癌における個別化循環腫瘍DNAを用いた術後再発予測2024

    • Author(s)
      田村 大地
    • Organizer
      第111回日本泌尿器科学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Detection of individualized mutations and monitoring of postoperative recurrence using circulating tumor DNA in patients with upper tract urothelial carcinoma2023

    • Author(s)
      Daichi Tamura
    • Organizer
      American Urological Association Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 上部尿路上皮癌における循環腫瘍DNAを用いた術後再発予測2023

    • Author(s)
      田村 大地
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 上部尿路上皮癌におけるctDNAを用いた症例特異的変異の検出と術後再発モニタリング2023

    • Author(s)
      田村 大地
    • Organizer
      第7回Liquid Biopsy研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 上部尿路上皮癌におけるctDNAを用いた症例特異的変異の検出と術後再発モニタリング2023

    • Author(s)
      田村 大地
    • Organizer
      第32回泌尿器科分子・細胞研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Detection of individualized mutations and monitoring of postoperative recurrence using circulating tumor DNA in patients with upper tract urothelial carcinoma2023

    • Author(s)
      Daichi Tamura
    • Organizer
      European Association of Urology Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Detection of individualized mutation using plasma and urinary circulating tumor DNA in patients with upper tract urothelial carcinoma2022

    • Author(s)
      Daichi Tamura
    • Organizer
      American Urological Association Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Detection of individualized mutation using plasma and urinary circulating tumor DNA in patients with upper tract urothelial carcinoma2022

    • Author(s)
      Daichi Tamura
    • Organizer
      European Association of Urology Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 上部尿路上皮癌患者における循環腫瘍DNAを用いた症例特異的変異の検出2022

    • Author(s)
      田村 大地
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 上部尿路上皮癌における血中および尿中circulating tumor DNAの検討2022

    • Author(s)
      田村 大地
    • Organizer
      第6回Liquid Biopsy研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Individualized mutation detection in plasma and urinary circulating tumor DNA for monitoring upper tract urothelial carcinoma using digital polymerase chain reaction2021

    • Author(s)
      Daichi Tamura
    • Organizer
      American Urological Association Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 上部尿路上皮癌におけるdigital PCRを用いた血中・尿中circulating tumor DNAの検討2021

    • Author(s)
      田村 大地
    • Organizer
      第80回日本癌学会学術集会
    • Related Report
      2021 Research-status Report
  • [Remarks] 血中・尿中に含まれる患者特有のがん由来DNA検査で上部尿路上皮癌の術後再発を検出する方法を開発

    • URL

      https://www.iwate-med.ac.jp/news/n5-research/23121401-soumu/

    • Related Report
      2023 Annual Research Report

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

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