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Screening for cancer stem cell-targeted dinuclear platinum(II) complex

Research Project

Project/Area Number 17K15436
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Physical pharmacy
Research InstitutionSuzuka University of Medical Science

Principal Investigator

Uemura Masako  鈴鹿医療科学大学, 薬学部, 助教 (70511997)

Research Collaborator Komeda Seiji  
Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords白金錯体 / 次世代白金制がん剤 / 大腸がん / がん幹細胞 / グルタチオン / 抗がん剤 / シスプラチン耐性がん / 薬学 / 癌 / 構造活性相関
Outline of Final Research Achievements

Cancer stem cell (CSC) concept, that CSC is concerned in cancer relapse and metastasis, has emerged in recent years. We have developed a series of tetrazolato-bridged dinuclear platinum(II) complexes (tetrazolato-bridged complexes) which has been reported to exert in vivo antitumor efficacy on mouse colorectal cancer. In this research, we performed in vitro cytotoxicity study of tetrazolato-bridged complexes on CSC of human colorectal cancer. Among them, tetrazolato-bridged complexes with fluoromethyl group decreased sizes and numbers of CSC sphere, suggesting that they could show cytotoxicity on CSCs as well. These results would contribute to a development of tetrazolato-bridged complexes and a next generation platinum anti-cancer drug.

Academic Significance and Societal Importance of the Research Achievements

in vivo 抗腫瘍効果が認められている白金錯体について、がん幹細胞に対するin vitro 細胞増殖抑制活性も示す可能性が示唆されたことは、非常に興味深い。また、この結果は、テトラゾラト架橋錯体の有効性を裏付ける作用機序を明らかにする上で重要な知見であり、テトラゾラト架橋錯体の更なる構造最適化に役立てることができる。従って、本研究の成果は、臨床におけるニーズに応える次世代白金制がん剤の設計に貢献すると考えられる。

Report

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

    (11 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] In Vitro Cytotoxicity and In Vivo Antitumor Efficacy of Tetrazolato-Bridged Dinuclear Platinum(II) Complexes with a Bulky Substituent at Tetrazole C52019

    • Author(s)
      Komeda S., Uemura M., Yoneyama H., Harusawa S., Hiramoto K.
    • Journal Title

      Inorganics

      Volume: 7 Issue: 1 Pages: 5-5

    • DOI

      10.3390/inorganics7010005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis and structure-activity relationships of tetrazolato-bridged dinuclear platinum(II) complexes: A small modification at tetrazole C5 markedly influences the in vivo antitumor efficacy2019

    • Author(s)
      Komeda S., Yoneyama H., Uemura M., Tsuchiya T., Hoshiyama M., Sakazaki T., Hiramoto K., Harusawa S.
    • Journal Title

      Journal of Inorganic Biochemistry

      Volume: 192 Pages: 82-86

    • DOI

      10.1016/j.jinorgbio.2018.12.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kinetic analysis of and platinum(II) migration in the reactions of tetrazolato-bridged dinuclear platinum(II) complexes with nucleotides.2017

    • Author(s)
      Uemura M., Komeda S.
    • Journal Title

      J Inorg Biochem.

      Volume: 177 Pages: 359-367

    • DOI

      10.1016/j.jinorgbio.2017.08.010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] テトラゾール5位にかさ高い置換基を導入したテトラゾラト架橋錯体のin vitro細胞毒性とin vivo抗腫瘍効果2019

    • Author(s)
      植村雅子、平本恵一、米山弘樹、春沢信哉、米田誠治
    • Organizer
      日本薬学会第139回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 含フッ素テトラゾラト架橋白金(II)二核錯体のDNAとの相互作用およびがん細胞増殖抑制活性2018

    • Author(s)
      植村雅子, 米田誠治
    • Organizer
      第63回日本薬学会東海支部総会・大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] テトラゾラト架橋白金(II)二核錯体の in vitro 細胞毒性と in vivo 抗腫瘍効果2018

    • Author(s)
      米田誠治、植村雅子、平本恵一、米山弘樹、春沢信哉
    • Organizer
      第27回金属の関与する生体関連反応シンポジウム(SRM2018)
    • Related Report
      2018 Annual Research Report
  • [Presentation] DNA interaction and cellular uptake study of highly antitumor-active tetrazolato-bridged dinuclear platinum(II) complexes.2018

    • Author(s)
      Uemura, M.; Komeda, S.
    • Organizer
      43rd International Conference on Coordination Chemistry (ICCC2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] メチル基を有するテトラゾラト架橋白金(II)二核錯体のDNAとの相互作用および細胞内取り込みにおけるフッ素導入効果の検討2018

    • Author(s)
      植村雅子、米山弘樹、春沢信哉、米田誠治
    • Organizer
      日本薬学会第138回年会
    • Related Report
      2017 Research-status Report
  • [Presentation] DNA Interactions and Structure-Activity Relationship of Tetrazolato-Bridged Dinuclear Platinum(II) Complexes with Methyl and Fluoromethyl Group2017

    • Author(s)
      Uemura M., Komeda S.
    • Organizer
      12th International Symposium on Platinum Coordination Compounds in Cancer Chemotherapy (ISPCC2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 制がん白金(II)二核錯体のDNA凝縮能および細胞内取り込みに関する研究2017

    • Author(s)
      植村雅子、吉川祐子、吉川研一、米田誠治
    • Organizer
      第63回日本薬学会東海支部総会・大会
    • Related Report
      2017 Research-status Report
  • [Presentation] フルオロメチル基を有するテトラゾラト架橋白金(II)二核錯体のDNAとの相互作用および構造活性相関2017

    • Author(s)
      植村雅子、米山弘樹、坂﨑智哉、長江紀樹、小井阪あゆみ、春沢信哉、米田誠治
    • Organizer
      第26回金属の関与する生体関連反応シンポジウム(SRM2017)
    • Related Report
      2017 Research-status Report

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

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