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Molecular mechanisms of cellular responses to ionizing radiation and reactive oxygen species

Research Project

Project/Area Number 15310037
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Risk sciences of radiation/Chemicals
Research InstitutionKyoto University

Principal Investigator

YONEI Shuji  Kyoto University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (60093340)

Co-Investigator(Kenkyū-buntansha) ZHANG Qiu-mei  Kyoto University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (00260604)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥15,700,000 (Direct Cost: ¥15,700,000)
Fiscal Year 2005: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2004: ¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 2003: ¥9,500,000 (Direct Cost: ¥9,500,000)
KeywordsIonizing radiation / Oxidative stress response / DNA repair / Base excision repair / DNA glycosylase / Regulation of gene expression / Oxidative base damage / Clustered DNA damage / 放射線感受性 / 活性酸素 / APエンドヌクレアーゼ / 8-オキソグアニン / ストレス応答 / 過剰発現 / 放射線 / 塩基損傷 / 二重鎖切断 / 修復 / 致死作用
Research Abstract

(1)It is well-known that ionizing radiation such as X-rays, gamma-rays and alpha-particles, produces a unique form of DNA damage called "clustered damage", which contains two or more lesions induced within the one or two helical turns of DNA. Many of the lesions induced by ionizing radiation are chemically indistinguishable from those induced by reactive oxygen species produced as by-products of oxidative metabolism. However, clustered damage induced by ionizing radiation would be less readily repaired than isolated lesions. Therefore clustered damage might be biologically significant. In this report we showed that HeLaS3 cells overexpressing hOGG1 in nucleus or mitochondria were more sensitive to gamma-rays than HeLaS3 cells. We have determined the level of chromosomal double strand breaks by gamma-H2AX foci formation, clustered damages produced by ionizing radiation might be converted to lethal double-strand breaks during attempted base excision repair. Our results that overexpressio … More n of hOGG1 in mitochondria protein enhanced the sensitivity to gamma-rays suggest that double-strand breaks are also induced by abortive base excision repair in mitochondrial genome. (2)Ionizing radiation and reactive oxygen species produce various types of oxidative damage to DNA, which cause mutations in cells. Bacteria and eukaryotes have DNA repair systems to prevent mutations. Oxidative base damages are principally repaired by base excision repair (BER) mechanisms. However, there are no indications that oxidative damages are directly reversed on the DNA strand. In this study, we examined whether oxidative damages are directly reversed on the DNA strand. We used pUB3 plasmid irradiated with gamma-rays and tsubsequently treated with a reducing agent, dithiolthreitol (DTT). E.coli cells were transformed with the pUB3. As a result, the transformation efficiency of pUB3 treated with DTT was higher than that of pUB3 without DTT treatment. We are currently investigating the mutation spectra of the pUB3. Less

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (32 results)

All 2006 2005 Other

All Journal Article (24 results) Book (2 results) Publications (6 results)

  • [Journal Article] Rhp-51 dependent recombination intermediates that do not generate checkpoint signal are accumulated in S. pombe rad60 and smc5/6 after arrest2006

    • Author(s)
      I.Miyabe, T.Morishita, T.Hishida, S.Yonei, H.Shinagawa
    • Journal Title

      Molecular and Cellular Biology 26

      Pages: 343-353

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cloning and characterization of an ascidian homolog of the human Ogg1 that is involved in the repair of 8-oxoG in DNA in Ciona intestinalis2006

    • Author(s)
      G.Jin, Q-M.Zhang, Y.Satou, N.Satoh, H.Kasai, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 82

      Pages: 241-250

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cloning and characterization of an ascidian homolog of the human 8-oxoguanine DNA glycosylase (Ogg1) that is involved in the repair of 8-oxo-7,8-dihydroguanine in DNA in Ciona intestinalis2006

    • Author(s)
      G.Jin, Q.-M.Zhang, Y.Satou, N.Satoh, H.Kasai, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 82

      Pages: 241-250

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Cloning and characterization of an ascidian homolog of the human 8-oxoguanine DNA glycosylase (Ogg1) that is involved in the repair of 8-oxo-7,8-dihydroguanine in DNA2006

    • Author(s)
      Jin, G., Q.-M.Zhang, Y.Satou, N.Satoh, H.Kasai, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 82(印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] DNA酸化への防御戦略-塩基除去修復を中心に-2005

    • Author(s)
      張秋梅, 中村允耶, 米倉慎一郎, 米井脩治
    • Journal Title

      蛋白質・核酸・酵素 50

      Pages: 322-329

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Increased sensitivity to sparsely ionizing radiation due to excessive base excision in clustered DNA damage sites in Escherichia coli2005

    • Author(s)
      P-W.Chang, Q-M.Zhang, K.Takatori, A.Tachibana, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 81

      Pages: 115-123

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The Shizosaccharomyces pombe homolog (SpMYH) of the E. coli MutY is required for removal of G from 8-oxoG/G to prevent G : C-C : G transversions2005

    • Author(s)
      T.Doi, S.Yonekura, K.Tano, S.Yasuhira, S.Yonei, Q-M.Zhang
    • Journal Title

      Journal of Radiation Research 46

      Pages: 205-214

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 塩基除去修復の構成とヒトDNAグリコシラーゼの機能2005

    • Author(s)
      張秋梅, 米倉慎一郎, 中村允耶, 金貴花, 米井脩治
    • Journal Title

      放射線生物研究 40

      Pages: 185-201

    • NAID

      40006828266

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] DNA glycosylase activities for thymine residues oxidized in the methyl group are functions of the hNEIL1 and hNTH1 enzymes in human cells2005

    • Author(s)
      Q.-M.Zhang, S.Yonekura, M.Takao, A.Yasui, S.Yonei
    • Journal Title

      DNA Repair 4

      Pages: 71-79

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] DNA repair fidelity of base excision repair pathways in human Cell extracts2005

    • Author(s)
      Q-M.Zhang, G.L.Dianov
    • Journal Title

      DNA Repair 4

      Pages: 263-270

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Increased sensitivity to sparsely ionizing radiation due to excessive base excision in clustered DNA damage sites in Escherichia coli2005

    • Author(s)
      P.W.Chang, Q.-M.Zhang, K.Takatori, A.Tachibana, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 81

      Pages: 115-123

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] The Shizusaccharomyces pombe homolog (SpMYH) of the Escherichia coli MutY is required for removal of guanine from 8-oxoguanine/guanine mispairs to prevent G:C->C:G transversions2005

    • Author(s)
      T.Doi, S.Yonekura, K.Tano, S.Yonei, Q.-M.Zhang
    • Journal Title

      Journal of Radiation Research 46

      Pages: 205-214

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] DNA glycosylase activities for thymine residues oxidized in the methyl group are functions of the hNEIL1 and hNTH1 enzymes in human cells.2005

    • Author(s)
      Zhang, Q.-M., S.Yonekura, M.Takao, A.Yasui, H.Sugiyama, S.Yonei
    • Journal Title

      DNA Repair 4

      Pages: 71-79

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Increased sensitivity to sparsely ionizing radiation due to excessive base excision in clustered DNA damage sites in Escherichia coli.2005

    • Author(s)
      Chang, P.-W., Q.-M.Zhang, K.Takatori, A.Tachibana, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 81

      Pages: 115-123

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The Shizosaccharomyces pombe homolog (SpMYH) of the Escherichia coli MutY is required for removal guanine from 8-oxoguanine/guanine mispairs to prevent2005

    • Author(s)
      Doi, T., S.Yonekura, K.Tano, S.Yonei, Q.-M.Zhang
    • Journal Title

      Journal of Radiation Research 46

      Pages: 204-214

    • Related Report
      2005 Annual Research Report
  • [Journal Article] DNA酸化への防御戦略-塩基除去修復を中心に2005

    • Author(s)
      張秋梅, 中村允耶, 米倉慎一郎, 米井脩治
    • Journal Title

      蛋白質・核酸・酵素 50

      Pages: 322-329

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 塩基除去修復の構成とヒトDNAグリコシラーゼの機構2005

    • Author(s)
      張 秋梅, 米倉慎一郎, 中村允耶, 金 貴花, 米井脩治
    • Journal Title

      放射線生物研究 40

      Pages: 185-201

    • Related Report
      2005 Annual Research Report
  • [Journal Article] DNA glycosylase activities for thymine residues oxidized in the methylgroupare functions of the hNEIL1 and hNTH12005

    • Author(s)
      T.Doi, S.Yonekura, K.Tano, S, Yasuhira, S.Yonei, Q.-M.Zhang
    • Journal Title

      DNA Repair 4

      Pages: 71-79

    • Related Report
      2004 Annual Research Report
  • [Journal Article] DNA repair fidelity of base excision repair pathways in human cell extracts2005

    • Author(s)
      Q.-M.Zhang, G.L.Dianov
    • Journal Title

      DNA Repair 4

      Pages: 263-270

    • Related Report
      2004 Annual Research Report
  • [Journal Article] DNA酸化への防御戦略-塩基除去修復を中心に2005

    • Author(s)
      張秋梅, 中村允耶, 米倉慎一郎, 米井脩治
    • Journal Title

      蛋白質・核酸・酵素 50(印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Increased sensitivity to sparsely ionizing radiation due to excessive base excision in clustered DNA damage sites in Escherichia coli2005

    • Author(s)
      P.-W.Chang, Q.-M.Zhang, K.Takatori, A.Tachibana, S.Yonei
    • Journal Title

      International Journal of Radiation Biology 81(印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The Shizosaccharomyces pombe homolog (SpMYH) of the Escherichia coli MutY is required for removal of guanine from 8-oxoguanine/guanine mispairs to prevent G : C to C : G transversions2005

    • Author(s)
      T.Doi, S.Yonekura, K.Tano, S.Yasuhira, S.Yonei, Q.-M.Zhang
    • Journal Title

      Journal of Radiation Research 81(印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Recombinant Shizosaccharomyces pombe Nth1 protein exhibits DNA glycosylase activities for 8-oxo-7,8-dihydroguanine residues oxidized in the methyl group

    • Author(s)
      S.Yonekura, N.Nakamura, T.Doi, H.Sugiyama, S.Yonei, Q.-M.Zhang.
    • Journal Title

      International Journal of Radiation Biology (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Base excision repair fidelity in normal and cancer cells

    • Author(s)
      K.K.L.Chan, Q.-M.Zhang, G.L.Dianov
    • Journal Title

      Mutagenesis (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Book] 電磁場生命科学(共著書)2005

    • Author(s)
      張秋梅, 米井脩治
    • Total Pages
      366
    • Publisher
      京都大学学術出版会
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Book] 電磁場生命科学(宮越順二編)2005

    • Author(s)
      張 秋梅, 米井脩治
    • Total Pages
      396
    • Publisher
      京都大学出版会
    • Related Report
      2005 Annual Research Report
  • [Publications] Zhang, Q.-M., K.Hashiguchi, H.Sugiyama, S.YOnei: "Ntg1 and Ntg2 proteins as a 5-formyluracil-DNA glycosylases/AP lyase in Saccharomyces cerevisiae"International Journal of Radiation Biology. 79. 341-349 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Zhang, Q.-M., I.Miyabe, S.Yonei et al.: "Strong static magnetic field induces mutations through elevated production of reactive oxygen species in Escherichia coli soxR"International Journal of Radiation Biology. 79. 281-286 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hori, M., S.Yonei, H.Sugiyama, K.Yamamoto, Q.-M.Zhang: "Identification of high excision capacity for 5-hydroxymethyluracil mispaired with guanine in DNA of Escherichia coli MutM, Nei and Nth DNA glycosylases"Nucleic Acids Research. 31. 1191-1196 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yoshiro-Takata, M., Q.-M.Zhang, S.Yonei, M.Nakamura et al.: "A Novel GT-Mismatch Binding Protein That Recognizes Strict DNA Sequences with High Affinity"Tohoku Journal of Experimental Medicine. 200. 211-229 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hirose, H., Q.M.Zhang, S.Yonei, J.Miyakoshi et al.: "Static magnetic field with a strong magnetic field gradient (41.7 T/m) induces c-Jun expression in HL-60 cells"In Vitro Cellular and Developmental Biology. (印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 張秋梅, 米井脩治: "電磁場生命科学(宮越順二編)"京都大学出版会(印刷中). (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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