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The mechanism of photoinitiators about the reduction of therapeutic agents on breast cancer

Research Project

Project/Area Number 16K18943
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Medical pharmacy
Research InstitutionOkayama University

Principal Investigator

Yoichi Kawasaki  岡山大学, 大学病院, 薬剤主任 (40582101)

Project Period (FY) 2016-04-01 – 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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords注射薬 / 重合開始剤 / エストロゲン感受性細胞 / エストロゲン様活性 / エストロゲン受容体 / エストロゲン応答遺伝子 / 免疫不全雌性マウス / 推定腫瘍重量 / 薬学 / 薬理学 / 臨床
Outline of Final Research Achievements

As the breast cancer tends to be increased morbidity, research on prevention and cure is an urgent issue. In the our recent research, basic study was performed to clarify the influence of photoinitiators on breast cancer. As the results, it was suggested that the photoinitiaotrs acts on an estrogen receptor related to breast cancer growth. Thus, it has been suggested that it may promote cancer growth in patients already suffering from breast cancer.

Academic Significance and Societal Importance of the Research Achievements

乳がんの罹患者数は,増加の一途をたどり, 2020年までの部位別年齢調整罹患率の予測では第1位である。最も問題となるのは,他のがんと比較して乳がんの好発年齢は若いため子育て世代の患者が多いことである。このような背景から、乳がんの起因を解明することは重要である。本研究課題の成果では、重合開始剤は乳がん細胞に対してエストロゲン様活性を示すが、正常細胞に対してはその作用を有さないことが示唆された。このことより、重合開始剤自身に乳がん発がん作用はなく、すでに存在する乳がん細胞に対して増殖効果を示すことが示唆されたことから、乳がん罹患者は接触を避けるべきである。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2018 2017 2016

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

  • [Journal Article] UV-irradiated 2-methyl-4′-(methylthio)-2-morpholinopropiophenone-containing injection solution produced frameshift mutations in the Ames mutagenicity assay2018

    • Author(s)
      Takai M., Kawasaki Y., Arimoto S., Tanimoto Y, Kitamura Y., Sendo T.
    • Journal Title

      Environmental Science and Pollution Research

      Volume: 25 Pages: 10135-10140

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] In vivo quantitative determination of the concentration of the polymerization agent methyl 2-benzoylbenzoate in intravenous injection solution and the cytotoxic effects of the chemical on normal human peripheral blood mononuclear cells.2016

    • Author(s)
      Tsuboi, C., Kawasaki, Y., Yoshitome, K., Yagi, K., Miura, T., Esumi, S., Miyazaki, I., Asanuma, M., Kiyamura, Y. and Sendo, T.
    • Journal Title

      Environ. Sci. Pollut. Res. Int.

      Volume: 23 Issue: 10 Pages: 10262-10269

    • DOI

      10.1007/s11356-016-6332-y

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Analysis of the photoinitiators within an injection solution and the associated risks2018

    • Author(s)
      Kawasaki Y., Kitamura Y., Sendo T.
    • Organizer
      2018 ASHP Midyear Clinical Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In vitro toxicity of photoinitiators in injectable solutions2017

    • Author(s)
      Yoichi Kawasaki, Toshiaki Sendo
    • Organizer
      第15回日中韓合同注射薬臨床情報学シンポジウム
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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