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Development of a new diagnostic method for urothelial carcinoma by detecting urinary microRNA using cell sorting system

Research Project

Project/Area Number 21K09404
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

ENOKIDA Hideki  鹿児島大学, 医歯学域医学系, 教授 (80347103)

Co-Investigator(Kenkyū-buntansha) 吉野 裕史  鹿児島大学, 医歯学域医学系, 講師 (90642611)
鑪野 秀一  鹿児島大学, 医歯学域医学系, 准教授 (30624655)
坂口 大  鹿児島大学, 鹿児島大学病院, 医員 (70779008)
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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords尿路上皮癌 / 腫瘍マーカー / マイクロRNA / 膀胱癌
Outline of Research at the Start

腎盂尿管癌では尿細胞診検査が陰性であった場合、診断のために侵襲の大きな尿管鏡検査が必要である。また膀胱癌に対する内視鏡手術(TUR-BT)後の再発の診断には頻回に膀胱鏡検査が実施されており、患者への侵襲やコスト面の問題は大きい。このような現状から非侵襲的で感度・特異度ともに優れた腫瘍マーカーの早急な開発が望まれている。本研究はセルソーティング技術により、尿沈渣から剥離した癌細胞のみをセルソーターで選別してmiRNAを測定することで、将来的な「尿路上皮癌の診断キット」の開発への基礎データを取得する提案である。

Outline of Final Research Achievements

Screening for miRNAs revealed that miR-200a and miR-191 were useful markers, and they were able to differentiate between cancers and non-cancers with an accuracy of 0.864 AUC. In an ancillary study, the expression and induction of the tumor-suppressive miR-99a-5p inhibited the proliferative, migratory and invasive capacity of bladder cancer cells and improved GEM sensitivity in Gemcitabine (GEM)-resistant strains. In addition, knockdown of SMARCD1, the target gene of miR-99a-5p, also suppressed the proliferative ability of cancer cells. Furthermore, it was shown that the induction of miR-99a-5p and the suppression of SMARCD1 contributed to cellular senescence through the induction of p21.

Academic Significance and Societal Importance of the Research Achievements

現在、尿路上皮癌に対する腫瘍マーカー開発はアンメットニーズであるが、今回の知見により、将来的な「尿路上皮癌の診断キット」の開発への基礎データを取得することができたと考える。また臨床的に問題である尿路上皮癌の抗癌剤耐性の克服に向けて、miR-99a-5pを基点とする新たな耐性機序克服に関する知見の獲得ができ、今後の尿路上皮癌治療の発展に寄与できるものと考える。

Report

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

    (4 results)

All 2023 2022 2021

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

  • [Journal Article] Characterization and treatment of gemcitabine‐ and cisplatin‐resistant bladder cancer cells with a pan‐RAS inhibitor2023

    • Author(s)
      Yoshino Hirofumi、Yokoyama Seiya、Tamai Motoki、Okamura Shunsuke、Iizasa Sayaka、Sakaguchi Takashi、Osako Yoichi、Inoguchi Satoru、Matsushita Ryosuke、Yamada Yasutoshi、Nakagawa Masayuki、Tatarano Shuichi、Tanimoto Akihide、Enokida Hideki
    • Journal Title

      FEBS Open Bio

      Volume: 13 Issue: 6 Pages: 1056-1066

    • DOI

      10.1002/2211-5463.13616

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] microRNA-99a-5p induces cellular senescence in gemcitabine-resistant bladder cancer by targeting SMARCD1.2022

    • Author(s)
      Motoki Tamai, Shuichi Tatarano, Shunsuke Okamura, Wataru Fukumoto, Issei Kawakami, Yoichi Osako, Takashi Sakaguchi, Satoshi Sugita, Masaya Yonemori, Yasutoshi Yamada, Masayuki Nakagawa, Hideki Enokida, Hirofumi Yoshino.
    • Journal Title

      Molecular Oncology

      Volume: 16 Issue: 6 Pages: 1329-1346

    • DOI

      10.1002/1878-0261.13192

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] microRNA-99a-5p induces cellular senescence in gemcitabine-resistant bladder cancer by targeting SMARCD12022

    • Author(s)
      Motoki Tamai, Shuichi Tatarano, Shunsuke Okamura, Wataru Fukumoto, Issei Kawakami, Yoichi Osako, Takashi Sakaguchi, Satoshi Sugita, Masaya Yonemori, Yasutoshi Yamada, Masayuki Nakagawa, Hideki Enokida, Hirofumi Yoshino.
    • Journal Title

      Molecular Oncology

      Volume: 16 Pages: 1329-1346

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] microRNA-99a-5pは、膀胱癌におけるゲムシタビン耐性を克服するための重要な分子である.2021

    • Author(s)
      玉井元規, 吉野裕史, 坂口大, 榎田英樹.
    • 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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