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Application of probability theory in cluster DNA damage generation analysis

Research Project

Project/Area Number 15K05000
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Foundations of mathematics/Applied mathematics
Research InstitutionHiroshima University

Principal Investigator

Saisho Yasumasa  広島大学, 工学研究科, 准教授 (70195973)

Co-Investigator(Kenkyū-buntansha) 伊藤 敦  東海大学, 工学部, 教授 (80193473)
畑上 到  東京都市大学, 共通教育部, 教授 (50218476)
Project Period (FY) 2015-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsDNA / クラスター損傷 / LET / 数理モデル / 確率論の応用 / G値 / G値
Outline of Final Research Achievements

The purpose of this study is to theoretically support the biological effects of high LET radiation and to solve the mathematical problems that emerge accordingly by analyzing the process of producing severe damage called cluster damage in DNA produced by irradiation by constructing a stochastic (mathematical) model and predicting the dependence of the number of cluster damage on radiation dose and LET ("linear energy transfer", a parameter describing the density at which radiation causes ionization around its track).

Academic Significance and Societal Importance of the Research Achievements

DNA に放射線を照射したときに,二重らせんの双方の塩基が同時に損傷を受けて切断される,2 本鎖切断 (dsb )や、クラスター損傷と呼ばれる損傷が起きると修復が困難になり,致命的なダメージを受ける.そこでこれらの損傷の生成を調べることは重要な問題であるが,照射線量と損傷の生成数との関係は低線量域において検出が困難であること等から,完全には解決されていない.本研究では,さらに放射線がその飛跡周辺に電離を起こす密度を表現する線エネルギー付与 (LET) との関係にも着目し数理的な考察を行った。この問題は,福島の原発事故において関心事になった低線量放射線の影響の問題とも深く関係している.

Report

(6 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (48 results)

All 2019 2018 2017 2016 2015

All Journal Article (20 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 18 results,  Open Access: 12 results,  Acknowledgement Compliant: 2 results) Presentation (25 results) (of which Int'l Joint Research: 7 results,  Invited: 8 results) Book (3 results)

  • [Journal Article] Elemental and molecular imaging with X-rays for biomedical applications: Calcium mapping in human hair or possible early detection of breast cancer2019

    • Author(s)
      A. Ito
    • Journal Title

      Mongolian Journal of Physics

      Volume: 5 Pages: 56-60

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA strand breaks induced by fast and thermal neutrons from YAYOI research reactor in the presence and absence of boric acid2019

    • Author(s)
      E. Jamsranjav, A. Ito, Y. Kato, Y. Tatebe, N. Takase, S. Yoshida,
    • Journal Title

      Radiat. Res.

      Volume: 191 Issue: 5 Pages: 483-489

    • DOI

      10.1667/rr15249.1

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative Distribution of DNA, RNA, Histone and Proteins Other than Histone in Mammalian Cells, Nuclei and a Chromosome at High Resolution Observed by Scanning Transmission Soft X-Ray Microscopy (STXM)2019

    • Author(s)
      K. Shinohara, S. Tone, T. Ejima, T. Ohigashi, A. Ito
    • Journal Title

      Cells

      Volume: 8 Issue: 2 Pages: 164-164

    • DOI

      10.3390/cells8020164

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] LET and ion species dependence of oxidative damage in DNA sheet generated along ion beam track2019

    • Author(s)
      A. Ito, A. Furuhashi, F. Ouchi, S. Yoshida, R. Hirayama, Y. Furusawa, Y. Yokota, T. Funayama
    • Journal Title

      QST Takasaki Annual Report 2017

      Volume: - Pages: 81-81

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dependence of mating rate on variance of eclosion time of cicadas (Cicadidae)2018

    • Author(s)
      Yasumasa Saisho
    • Journal Title

      Mathematical Biosciences

      Volume: 305 Pages: 55-59

    • DOI

      10.1016/j.mbs.2018.08.006

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dependence of Spatial Structure of Coexisting Multiple Solutions in Nonlinear PDE System on Random Noises2018

    • Author(s)
      I. Hataue
    • Journal Title

      Information

      Volume: 21 Pages: 1877-1886

    • NAID

      130007510166

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Quantitative analysis of mammalian chromosome by scanning transmission soft X-ray microscopy2018

    • Author(s)
      K. Shinohara, T. Ohigashi, S. Tone, M. Kado, A. Ito
    • Journal Title

      Ultramicroscopy,

      Volume: 194 Pages: 1-6

    • DOI

      10.1016/j.ultramic.2018.07.001

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discrimination of DNA and RNA distribution in a mammalian cell by scanning transmission soft X-ray microscopy2018

    • Author(s)
      K. Shinohara, A. Ito, T. Ohigashi, M. Kado, S. Tone
    • Journal Title

      Journal of X-Ray Science and Technology

      Volume: 26 Pages: 877-884

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observation of oxidative damage in DNA sheet generated along ion beam track2018

    • Author(s)
      A. Ito, F. Ouchi, T. Ushiroda, R. Hirayama, Y. Furusawa, Y. Yokota, T. Funayama
    • Journal Title

      QST Takasaki Annual Report 2016

      Volume: - Pages: 90-90

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study on Change of Stability Levels of Coexisting Multiple Solutions in Nonlinear PDE System2017

    • Author(s)
      I.Hataue
    • Journal Title

      Information

      Volume: 20 Pages: 5499-5508

    • NAID

      40021439650

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of noise limits to improve image processing in soft X-ray projection microscopy2017

    • Author(s)
      Erdenetogtokh Jamsranjav, Kenichi Kuge, Atsushi Ito, Yasuhito Kinjo, Tatsuo Shiina
    • Journal Title

      J. X-Ray Sci. Technol.

      Volume: 25-4 Issue: 4 Pages: 653-665

    • DOI

      10.3233/xst-16201

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative study of mammalian cells by scanning transmission soft X-ray microscopy2017

    • Author(s)
      Shinohara K、Ohigashi T、Tone S、Kado M、Ito A
    • Journal Title

      IOP Conf. Series: Journal of Physics: Conf. Series

      Volume: 849 Pages: 012003-012003

    • DOI

      10.1088/1742-6596/849/1/012003

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dependence of Asymptotic Solutions of 2-D Fitz-Hugh Nagumo Model2017

    • Author(s)
      I. Hataue
    • Journal Title

      Information

      Volume: 20

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Repair process of DNA double strand breaks induced by X-ray bystander effect2016

    • Author(s)
      M. Ojima, T. Ushiroda, Y. Kawamata, G. Kashino, N. Usami, A. Ito
    • Journal Title

      Photon Factory Activity Report

      Volume: 33 Pages: 302-302

    • Related Report
      2016 Research-status Report
  • [Journal Article] On Immovable Boundary between Coexisting Solutions and Synchronization in a Reaction Diffusion System2016

    • Author(s)
      I. Hataue
    • Journal Title

      J. Phys. Soc. Japan

      Volume: 85 Issue: 7 Pages: 074005-074005

    • DOI

      10.7566/jpsj.85.074005

    • NAID

      40020880790

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Difference in the distributions between Ca content and the degree of oxidative damage in human hair determined by X-ray imaging2016

    • Author(s)
      A. Ito, T. Inoue, T. Kawai, Y. Taki, S. Inoue, T. Shimizu, K. Shinohara
    • Journal Title

      AIP Conference Proceedings

      Volume: 1696 Pages: 020021-020021

    • DOI

      10.1063/1.4937515

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biomedical application of soft X-ray microscopy with special reference to spectromicroscopy2016

    • Author(s)
      A. Ito, T. Inoue, M. Kado, T. Ohigashi, S. Tone, K. Shinohara, Biomedical application of soft X-ray microscopy with special reference to spectromicroscopy
    • Journal Title

      Acta Physica Polonica A

      Volume: 129(2) Issue: 2 Pages: 260-263

    • DOI

      10.12693/aphyspola.129.260

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of contrast enhancement prior to iteration procedure on image correction for soft X-ray projection microscopy2016

    • Author(s)
      E. Jamsranjav, T. Shiina, K. Kuge, Y. Kinjo, Y. Nakamura, K. Shinohara, A. Ito
    • Journal Title

      AIP Conference Proceedings

      Volume: 1696 Pages: 020037-020037

    • DOI

      10.1063/1.4937531

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Observation of DNA and protein distributions in mammalian cell nuclei using STXM2016

    • Author(s)
      T. Ohigashi, A. Ito, K. Shinohara, S. Tone, M. Kado, Y. Inagaki, Y.-F. Wang, N. Kosugi
    • Journal Title

      AIP Conference Proceedings

      Volume: 1696 Pages: 020027-020027

    • DOI

      10.1063/1.4937521

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 高LET粒子線によるDNA酸化損傷生成の可視化2015

    • Author(s)
      伊藤敦、後田藤太、井上祐人、大内章央、平山亮一、村山千恵子、冨田雅典、岡畑惠雄、古澤佳也
    • Journal Title

      平成26年度放射線医学総合研究所重粒子線がん治療装置等共同利用研究報告書

      Volume: 26 Pages: 129-130

    • Related Report
      2015 Research-status Report
  • [Presentation] イシガキヒグラシとソウザンヒグラシ2019

    • Author(s)
      税所康正
    • Organizer
      日本昆虫学会第79回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Imaging and quantification of area of oxidative DNA damage generated by heavy ion particles2019

    • Author(s)
      浦野建太、伊藤 敦、高野勇貴、平山亮一、古澤佳也、横田裕一郎、舟山知夫
    • Organizer
      日本放射線影響学会第62回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重イオン線によるDNA酸化損傷の粒子トラックに沿った可視化とその定量化の試み2019

    • Author(s)
      浦野建太、伊藤 敦、古橋亜司、大内章央、平山亮一、古澤佳也、舟山知夫、横田裕一郎
    • Organizer
      QST高崎サイエンスフェスタ2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] On the Application of Probability Theory to Radiation Biology and Insect Ecology2018

    • Author(s)
      Yasumasa Saisho
    • Organizer
      The 12th AIMS Conference on Dynamical Systems, Diferential Equations and Applications
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 拡張 van der Pol 方程式モデルの共存解の空間構造へのランダムネス の影響について2018

    • Author(s)
      畑上 到
    • Organizer
      日本応用数理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] lemental and molecular imaging with X-rays for biomedical applications: Calcium mapping in human hair for possible early detection of breast cancer2018

    • Author(s)
      A. Ito
    • Organizer
      International Conference 2018, Modern Trends in Natural Sciences and Advanced Technologies in Science Education (ICNS 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 粒子ビーム飛跡に沿ったDNA損傷生成の可視化の試み2018

    • Author(s)
      伊藤 敦
    • Organizer
      日本マイクロビーム生物研究会第9回連絡会議、日本放射線影響学会第61回大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 放射線生物影響研究における分野横断型融合研究2018

    • Author(s)
      伊藤 敦、平山亮一
    • Organizer
      ワークショップ”放射線生物学は今後どこへ向かっていくのか?”、日本放射線影響学会第61回大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 2次元 FitzHugh-Nagumo モデルにおける空間的に共存する動的パターンの遷移過程について2018

    • Author(s)
      畑上 到
    • Organizer
      日本応用数理学会 環瀬戸内応用数理研究部会第21回シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] On a probabilistic problem appearing in radiation biology2017

    • Author(s)
      Y. Saisho
    • Organizer
      Workshop on Applied Analysis and Probability
    • Place of Presentation
      國立臺灣大學數學系(台湾/台北)
    • Year and Date
      2017-03-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 重イオン線によるDNA酸化損傷の誘発とその可視化2017

    • Author(s)
      伊藤 敦、後田藤太、大内章央、平山亮一、古澤佳也、横田裕一郎、舟山知夫
    • Organizer
      放射線利用フォーラム2017 in 高崎、第1回QST高崎研シンポジウム
    • Place of Presentation
      高崎(群馬県)
    • Year and Date
      2017-01-26
    • Related Report
      2016 Research-status Report
  • [Presentation] チッチゼミの孵化生態について2017

    • Author(s)
      税所 康正
    • Organizer
      日本昆虫学会第77回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] OHラジカルの収量(G値)のLET依存性に関する数理モデル2017

    • Author(s)
      税所 康正,伊藤 敦
    • Organizer
      日本放射線影響学会第60回大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Dependence of numerical solutions of nonlinear PDE on forcibly added randomness2017

    • Author(s)
      I. Hataue
    • Organizer
      The 3rd International Conference on Fuzzy Systems and Data Mining
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 複数の解が共存する非線型偏微分方程式系の空間構造へのランダムノイズの影響2017

    • Author(s)
      畑上 到
    • Organizer
      第64回理論応用力学講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] Observation of DNA oxidative damage induced by high LET radiation2017

    • Author(s)
      A. Ito
    • Organizer
      第55回日本生物物理学会、熊本、2017.9.19-21シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] DNA 二重鎖切断の LET 依存性についての数学モデルの構築2016

    • Author(s)
      税所康正、伊藤 敦
    • Organizer
      日本放射線影響学会第59回大会
    • Place of Presentation
      JMSアステールプラザ(広島市)
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
  • [Presentation] DNA酸化損傷を指標とした高LET放射線のトラック構造の可視化2016

    • Author(s)
      大内章央、伊藤敦、後田藤太、井上祐人、平山亮一、古澤佳也、横田裕一郎、舟 山知夫
    • Organizer
      日本放射線影響学会第59回大会
    • Place of Presentation
      JMSアステールプラザ(広島市)
    • Year and Date
      2016-10-26
    • Related Report
      2016 Research-status Report
  • [Presentation] FitzHugh-Nagumo モデルにおける共存する解が接触する境界の挙動について2016

    • Author(s)
      畑上 到
    • Organizer
      応用数理学会2016年度年会
    • Place of Presentation
      北九州国際会議場(北九州市)
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report
  • [Presentation] セミの羽化日の分散が交尾率に与える影響について2016

    • Author(s)
      税所 康正
    • Organizer
      日本昆虫学会・日 本応用動物昆虫学会合同大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2016-03-26
    • Related Report
      2015 Research-status Report
  • [Presentation] 軟X線顕微鏡による生物試料の分子イメージング2015

    • Author(s)
      伊藤 敦、 大東 琢治,、刀祢 重信、加道 雅孝、井上 敬文、篠原 邦夫
    • Organizer
      第38回日本分子生物学会・第88回日本生化学会合同大会
    • Place of Presentation
      神戸ポートアイランド
    • Year and Date
      2015-12-01
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] DNA酸化損傷を指標とした高LET放射線のトラック構造の可視化2015

    • Author(s)
      大内章央、後田藤太、伊藤敦、横田裕一郎、舟山知夫、平山亮一、古澤佳也
    • Organizer
      放射線ワークショップ(第1回)
    • Place of Presentation
      富山大学五福キャンパス
    • Year and Date
      2015-10-16
    • Related Report
      2015 Research-status Report
  • [Presentation] DNA damages induced by radiation bystander effect2015

    • Author(s)
      T. Ushiroda, D. Nunokawa, A. Ito, M. Tomita
    • Organizer
      The 12th International Workshop on Microbeam Probes of Cellular Radiation Response (IWM2015)
    • Place of Presentation
      福井県若狭湾エネルギー研究センター
    • Year and Date
      2015-05-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mathematical Model Describing the Dose and LET Dependence of the Generation of DNA Damages by Radiation2015

    • Author(s)
      Y. Saisho and A. Ito
    • Organizer
      15th International Congress of Radiation Research (ICRR2015)
    • Place of Presentation
      国立京都国際会館 (Kyoto International Conference Center)
    • Year and Date
      2015-05-25
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Time dependence of development of the bystander effect induced by X-ray microbeam2015

    • Author(s)
      T. Ushiroda, D. Fukushima, D. Nunokawa, A. Ito, M. Tomita, M. Maeda
    • Organizer
      15th International Congress of Radiation Research (ICRR2015)
    • Place of Presentation
      国立京都国際会館 (Kyoto International Conference Center)
    • Year and Date
      2015-05-25
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Book] セミハンドブック2019

    • Author(s)
      税所康正
    • Total Pages
      112
    • Publisher
      文一総合出版
    • ISBN
      9784829981634
    • Related Report
      2019 Annual Research Report
  • [Book] 生き物と音の事典2019

    • Author(s)
      生物音響学会
    • Total Pages
      464
    • Publisher
      朝倉書店
    • ISBN
      9784254171679
    • Related Report
      2019 Annual Research Report
  • [Book] 改訂版 日本産セミ科図鑑2015

    • Author(s)
      林 正美、税所 康正
    • Total Pages
      224
    • Publisher
      誠文堂新光社
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2021-02-19  

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