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Basic research on the treatment of resistant prostate cancer by anti-Survivin photoimmunotherapy and heavy-ion immunotherapy

Research Project

Project/Area Number 18K09159
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Koike Hidekazu  群馬大学, 医学部附属病院, 講師 (90420091)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords前立腺癌 / サバイビン / 薬剤耐性 / 重粒子腺治療 / 光抗体療法 / カバジタキセル / 重粒子免疫療法
Outline of Final Research Achievements

Cabazitaxel resistance was induced in the castration-resistant prostate cancer cell line, 22Rv1-CR. In the cells, Survivin (apoptosis inhibitor) mRNA was highly expressed.YM155 (a novel small-molecule inhibitor of survivin) enhanced the anticancer effects of cabazitaxel on 22Rv1-CR in vitro and in vivo. Heavy ion irradiation inhibited 22Rv1-CR cell proliferation in vitro. In addition,
The cell proliferation was inhibited by near-infrared photoimmunotherapy, using the anti-Survivin monoclonal antibody, conjugated to the photoabsorber.

Academic Significance and Societal Importance of the Research Achievements

泌尿器科疾患において近年悪性腫瘍の頻度が著しく増加している中、新規癌薬物療法の進歩には目覚ましいのもがある。しかし、同時に治療に抵抗性となった癌も増加し、治療抵抗性癌に対する治療開発が急務である。今回、癌治療の抵抗性に関与するSurvivn(アポトーシス抑制因子)に着目し、治療抵抗性前立腺癌の新規治療の開発を進めた。Survivin抑制小分子が、抗癌剤治療の効果を回復させることを見い出した。また、重粒子線治療、さらに、光吸収体結合Survivn抗体を利用した光抗体療法が、治療抵抗性前立腺癌に効果があることも見い出した。これらの事は、治療抵抗性前立腺癌に対する治療の一助になりえると思われる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] YM155 Reverses Cabazitaxel Resistance in Castration-resistant Prostate Cancer by Reducing Survivin Expression2020

    • Author(s)
      MIYAO TAKESHI、KOIKE HIDEKAZU、SEKINE YOSHITAKA、OHTSU AKIRA、OKA DAISUKE、SUZUKI KAZUHIRO
    • Journal Title

      Anticancer Research

      Volume: 40 Issue: 9 Pages: 5091-5095

    • DOI

      10.21873/anticanres.14512

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Decreasing Survivin by YM155 reverses Cabazitaxel resistance in prostate cancer2020

    • Author(s)
      TAKESHI MIYAO, HIDEKAZU KOIKE, YOSHITAKA SEKINE, AKIRA OTSU, DAISUKE OKA , KAZUHIRO SUZUKI
    • Organizer
      American Urological Association's 2020 Annual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Decreasing Survivin by YM155 reverses Cabazitaxel resistance in prostate cancer2020

    • Author(s)
      Takeshi Miyao, Hidekazu Koike, 他
    • Organizer
      American Urological Association 2020 Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] カバジタキセル抵抗性前立腺癌細胞株に対するSurvivin抑制による効果2019

    • Author(s)
      宮尾武士、小池秀和、他
    • Organizer
      第107回日本泌尿器科学会総会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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