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MUC1C Oncoprotein Contributes to Acquiring Cisplatin Resistance in Urothelial Carcinoma Cells

Research Project

Project/Area Number 17K16815
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Urology
Research InstitutionKeio University

Principal Investigator

Shigeta Keisuke  慶應義塾大学, 医学部(信濃町), 助教 (10649875)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsMUC1C蛋白 / 薬剤排出性トランスポーター / CDDP耐性 / MUC1阻害剤 / MUC1C / 抗癌剤耐性 / CD44v9 / ROS産生 / 腫瘍学
Outline of Final Research Achievements

Mucin1 cytoplasm (MUC1-C) heterodimeric oncoprotein plays a crucial role in tumor progression, but only a few insights are available in urothelial carcinoma(UC). The aim of the present study was to investigate the molecular mechanism of MUC1C and acquisition of cisplatin (CDDP) resistance in UC.

Academic Significance and Societal Importance of the Research Achievements

CDDP耐性癌細胞ではMUC1C蛋白の発現亢進を認めていた。抗癌剤耐性機構のメカニズムとして、PI3K/AKT経路活性化による薬剤排出蛋白MDR1の亢進、および細胞膜マーカ―CD44v9発現亢進から示唆される癌細胞の幹細胞化によって酸化ストレス防御機構の増強された結果、CDDP投与後のROS産生低下が原因と思われた。siRNAの導入により、MUC1Cをknock downさせることで癌シグナル伝達を抑制し、抗癌剤感受性の回復が示唆された。MUC1C阻害薬GO-203はCDDPとの併用により、抗癌剤感受性の回復に寄与する事から、GC治療抵抗性患者に対する新規治療薬になりうると思われた。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Funded Workshop (1 results)

  • [Journal Article] The Over Time Conditional Survival of Intravesical Recurrence in Upper Tract Urothelial Carcinoma.2017

    • Author(s)
      Shigeta K, Kikuchi E, Hagiwara M, Ando T, Mizuno R, Abe T, Mikami S, Miyajima A, Nakagawa K, Oya M.
    • Journal Title

      Journal of Urology

      Volume: 198 Pages: 1278-1285

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] ゲムシタビン耐性膀胱癌は癌蛋白MUC1Cを介してシスプラチン耐性への交差耐性を獲得する2019

    • Author(s)
      茂田啓介
    • Organizer
      第107回泌尿器科学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MUC1C Oncoprotein Contributes to Acquiring Cisplatin and Gemcitabine Resistance in Urothelial Carcinoma Cells2018

    • Author(s)
      茂田啓介
    • Organizer
      第77回日本癌学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Prolonged Pneumoperitoneum Time Is an Independent Risk Factor for Intravesical Recurrence After Laparoscopic Radical Nephroureterectomy in Upper Tract Urothelial Carcinoma.2018

    • Author(s)
      茂田啓介
    • Organizer
      第56回日本癌治療学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Efficacy of Chemotherapy Administration in Elderly Patients with Metastatic Upper Tract Urothelial Carcinoma after Radical Nephroureterectomy2017

    • Author(s)
      Keisuke Shigeta
    • Organizer
      American Urological Association Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Funded Workshop] American Urological Association Conference2017

    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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