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Molecular mechanism of radio-sensitization by redox modification in cancer cells

Research Project

Project/Area Number 15K09991
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionUniversity of Toyama

Principal Investigator

ZHAO QING-LI  富山大学, 大学院医学薬学研究部(医学), 助教 (90313593)

Research Collaborator Li Peng  
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords細胞死 / 放射線 / 温熱
Outline of Final Research Achievements

In this study, the efficacy of some compounds was investigated to modify radiation or hyperthermia induced cell death. Lysolipin I or BU-4664L induced apoptosis in U937 and Molt-4 cells. In addition, Lisolipin I also enhanced radiation-induced apoptosis while, the low concentration BU-4664L have a protecting effect on radiation induced apoptosis. In this study, we determined that Tempo combine treatment with hyperthermia rapidly induced autophagic cell death. Tempo 5 mM -44℃/20 min combination induced apoptosis, while Tempo 5 mM -44℃/60 min combination induced autophagic cell death in HeLa cells. This co-treatment inhibited the processing of heat-activated procaspase-3 into active small subunits, leading to the inhibition of caspase-dependent apoptosis, and results in the induction of autophagic cell death. Furthermore, the gene chip analysis showed the up-regulation of TP53INP1 and cyclin-dependent kinase inhibitor (CDKI) genes in the combination treatment.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (5 results)

All 2017 2015

All Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] isofraxidinによる温熱細胞死の増強2017

    • Author(s)
      趙 慶利, 李 鵬, Mati Ur Rehman, Paras Jawaid, 近藤 隆
    • Organizer
      第19回癌治療増感研究シンポジウム
    • Place of Presentation
      奈良県文化会館
    • Year and Date
      2017-02-03
    • Related Report
      2016 Research-status Report
  • [Presentation] Gene expression changes and autophagic cell death induced by hyperthermia in the presence of Tempo2017

    • Author(s)
      Zhao QL, Rehman MU, Noguchi K, Kondo T
    • Organizer
      日本ハイパーサーミア学会第34回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Isofraxidinによる温熱細胞死の増強2017

    • Author(s)
      趙 慶利, 李鵬, Rehman MU, Jawaid P, 櫻井宏明, 近藤 隆
    • Organizer
      第19回癌治療増感研究シンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Combination of Tempo and Hyperthermia Induced Autophagic Cell Death in HeLa Cells2017

    • Author(s)
      Zhao QL, Fujiwara Y, Kondo T.
    • Organizer
      BIT’s 10th Annual World Cancer Congress-2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規抗生物BU-4664Lによる温熱アポトーシスの増強2015

    • Author(s)
      趙 慶利 、Rehman Mati Ur 、 五十嵐康弘 、近藤 隆
    • Organizer
      日本ハイパーサーミア学会
    • Place of Presentation
      大阪
    • Year and Date
      2015-09-04
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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