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Development of the new radiation monitoring system using DNA molecules as a radiation sensor

Research Project

Project/Area Number 15K06667
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionOsaka University

Principal Investigator

SHIMIZU KIKUO  大阪大学, 放射線科学基盤機構附属ラジオアイソトープ総合センター, 准教授 (20162696)

Co-Investigator(Kenkyū-buntansha) 松尾 陽一郎  福井大学, 学術研究院工学系部門, 講師 (90568883)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsバイオドシメトリー / DNA線量計 / 緊急時被ばく線量評価 / バイオアッセイ / リアルタイムPCR法 / LET / DNA損傷 / DNA鎖切断 / イオンビーム / qPCR / 緊急被ばく / 吸収線量 / 2本鎖切断 / 酸化損傷
Outline of Final Research Achievements

It is important to develop new rapid and sensitive methods using bio-derived materials for direct evaluation of the biological effects of ionizing radiation. In this research project, we developed a new system using DNA based on radiation chemistry, molecular biology and radiation biology. The chemical yield of radiation damage of DNA molecules is expanded and quantified using real-time polymerase chain reaction (qPCR) used for gene expression level analysis, and the efficiency of DNA synthesis by PCR increases with the increase of linear energy transfer (LET) Revealed to decrease. The development of personal exposure dosimetry based on the new principle by this method has been paved. In addition, it can be considered that it will be used for the evaluation method of emergency exposure dose when not carrying a personal exposure dosimeter.

Academic Significance and Societal Importance of the Research Achievements

本研究課題で個人被ばく線量を生体影響を指標として評価する方法が確立できた。また宇宙空間で宇宙飛行士があびる粒子線などの宇宙線の被ばく影響を生物学的効果比(RBE)を加味した評価が可能になると期待される。さらに数時間で結果がでるので血液からのDNAを使用し緊急被ばく時の被ばく線量評価にも適用が可能である。こうして放射線業務従事者の安全確保を飛躍的に向上させることができる。LETが高い炭素線などのイオンビームでは直接効果が増加し鎖切断の比率が高くなるのでPCR反応に及ぼす効果はより大きくなる。今後の研究により高LET放射線や混成場での被ばく管理をより実際的に行える手法を確立できると考えている。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 2016 2015

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] 放射線照射によるDNA損傷の新評価手法の検討2018

    • Author(s)
      松尾 陽一郎、平山 誠、川井 良太、砂川 武義、清水 喜久雄、泉 佳伸
    • Journal Title

      放射線生物研究

      Volume: 53 Pages: 223-240

    • NAID

      120007146165

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biological effects of carbon ion beams with various LETs on budding yeast Saccharomyces cerevisiae2018

    • Author(s)
      Matuo Youichirou、Izumi Yoshinobu、Furusawa Yoshiya、Shimizu Kikuo
    • Journal Title

      Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis

      Volume: 810 Pages: 45-51

    • DOI

      10.1016/j.mrfmmm.2017.10.003

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed
  • [Presentation] “The direct measurement method to radiation dose on the DNA using polymerase chain reaction2018

    • Author(s)
      Y. Matuo, Y. Izumi, N. Sato, T. Yamamoto, K. Shimizu
    • Organizer
      AOCRP5
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射線によるDNA 損傷の定量評価に関する研究2018

    • Author(s)
      松尾陽一郎、泉佳伸、清水喜久雄
    • Organizer
      日本保健物理学会 第51回研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of the new radiation monitoring system using Quantitative polymerase chain reaction2017

    • Author(s)
      Y. Matuo, Y. Izumi, N. Sato, T. Yamamoto, K. Shimizu
    • Organizer
      The 13th International Workshop on Ionizing Radiation Monitoring
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 放射線によるDNA 損傷の定量評価に関する検討2017

    • Author(s)
      松尾陽一郎、泉佳伸、長谷純宏、坂本綾子、清水喜久雄
    • Organizer
      日本保健物理学会 第50回研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] Dosimetric application of biological technique by evaluating DNA lesions induced with various LET ion beams exposure2016

    • Author(s)
      Y. Matuo, Y. Izumi, K. Shimizu
    • Organizer
      The 11th International Workshop on Ionizing Radiation Monitoring
    • Place of Presentation
      茨城県 大洗
    • Year and Date
      2016-12-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 放射線によるDNA損傷の定量評価に関する検討及び線量評価への応用2016

    • Author(s)
      松尾陽一郎、泉佳伸、清水喜久雄
    • Organizer
      日本放射線安全管理学会 第15回学術大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2016-11-30
    • Related Report
      2016 Research-status Report
  • [Presentation] Detection of the Irradiated Food by qPCR analysis2015

    • Author(s)
      K. Shimizu, Y. Matuo, N. Sato, T. Yamamoto
    • Organizer
      The 11th International Workshop on Ionizing Radiation Monitoring
    • Place of Presentation
      Oakai, Ibaraki, Japan
    • Year and Date
      2015-12-05
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 炭素イオンビーム照射によるDNA損傷のLET依存性2015

    • Author(s)
      松尾陽一郎、泉佳伸、長谷純宏、坂本綾子、清水喜久雄
    • Organizer
      第10回高崎量子応用研究シンポジウム
    • Place of Presentation
      高崎
    • Year and Date
      2015-10-08
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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