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1999 Fiscal Year Final Research Report Summary

Mechanisms of Mitochondrial Cell Death Induced by Radiation

Research Project

Project/Area Number 10671786
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 病態科学系歯学(含放射線系歯学)
Research InstitutionNational Institute of Radiological Science

Principal Investigator

MAJIMA Hideyuki  National Institute of Radiological Sciences, International Space Radiation Laboratory, Researcher, 国際宇宙放射線医学研究センター, 研究員 (60165701)

Co-Investigator(Kenkyū-buntansha) ANDO Koichi  National Institute of Radiological Sciences, International Space Radiation Laboratory, Researcher, 国際宇宙放射線医学研究センター, 研究員 (00159526)
Project Period (FY) 1998 – 1999
KeywordsRadiation / Apoptosis / Mitochondria / Mechanisms of Cell Death / Free Radical / Sensitivity / Vitamin E
Research Abstract

Mitochondrial DNA codes 13 components of electron transport chain. Lacking of mtDNA abrogates the electron transport system. We hypothesize that mitochondria deficient in functional electron transport system can result in increased production of superoxide and thus more oxidative stress. Sensitivity to X-rays, clonogenicity, frequency of double strand breaks(DSB), chromosome aberration, free radical generation, apoptosis and oxidative damage markers were examined in 143B human oseteosarcoma cell line (Rho+) and mtDNA-less (Rho0) cells derived from this cell line. No significant difference was observed between Rho+ and Rho0 cells without X-rays exposure for frequency of DSB and chromosome aberration. Clonogenicity assay showed greater sensitivity in Rho0 cells compared to Rho+ cells exposed to X-rays. More DSBs, and more chromosome aberrations in terms of gap, translocation, and deletion were observed in Rho0 cells. Substitution of normal mitochondria including mitochondrial DNA resulted recover of X-ray sensitivity. These results suggest that Rho0 cells lacking mtDNA has more oxidative stress and higher sensitivity to X-rays. Furthermore, the chromosomal damage by irradiation was restored substantially by Vitamin E.

  • Research Products

    (12 results)

All 1999 1998

All Journal Article (11 results) Book (1 results)

  • [Journal Article] Mutations in the promoter reveal a cause for the reduced expression of the human manganese superoxide dismutase gene in cancer cells1999

    • Author(s)
      Xu Y, Krishnan A, Wan XS, Majima H, Yeh C-C, Ludewig G, Kasarskis EJ, St Clair DK
    • Journal Title

      Oncogene 18

      Pages: 93-102

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Measurements of the equivalent whole-body dose during radiation therapy by cytogenetic methods1999

    • Author(s)
      Durante M, Yamada S, Ando K, Furusawa Y, Kawata T, Majima H, Nakano T, Tsujii H
    • Journal Title

      Physics in Medicine and Biology 44

      Pages: 1289-1298

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Association between G2-phase block and radiation-induced chromosome fragment repair in human lymphocytes1999

    • Author(s)
      Durante M, Furusawa Y, Majima H, Kawata T, Gotoh E
    • Journal Title

      Radiation Research 151

      Pages: 670-676

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Theoretical strategy : How to make treatment planning for heavy ion-beam therapy?1999

    • Author(s)
      Majima HJ, Suzuki M, Ando K, Sakata K, Suzuki N, Okada S, Suzuki S, Miyamoto T, Fujitaka K, Fujii H, Yamada S, Tsujii H, Urano M
    • Journal Title

      Jpn.J.Med.Phys. 19

      Pages: 37-47

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] An intronic NF-κB element is essential for induction of the human manganese superoxide dismutase gene by tumor necrosis factor-α and interleukin-1β1999

    • Author(s)
      Xu Y, Kiningham KK, Devalaraja N, Yeh C-C, Majima H, Kasarskis EJ, St Clair DK
    • Journal Title

      DNA and Cell Biology 18

      Pages: 709-722

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Mutations in the promoter reveal a cause for the reduced expression of the human manganese superoxide dismutase gene in cancer cells.1999

    • Author(s)
      Xu Y, Krishnan A, Wan XS, Majima H, Yeh C-C, Ludewig G, Kasarskis EJ, St Clair DK
    • Journal Title

      Oncogene 18

      Pages: 93-102

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Measurements of the equivalent whole-body dose during radiation therapy by cytogenetic methods.1999

    • Author(s)
      Durante M, Yamada S, Ando K, Furusawa Y, Kawata T, Majima H, Nakano T, Tsujii H
    • Journal Title

      Phys.Med.and Biol. 44

      Pages: 1289-1298

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Association between G2-phase block and radiation-induced chromosome fragment repair in human lymphocytes.1999

    • Author(s)
      Durante M, Furusawa Y, Majima H, Kawata T, Gotoh E
    • Journal Title

      Radiat.Res. 151

      Pages: 670-676

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] An intronic NF-κB element is essential for induction of the human manganese superoxide dismutase gene by tumor necrosis factor-α and interleukin-1β1999

    • Author(s)
      Xu Y, Kiningham KK, Devalaraja N, Yeh C-C, Majima H, Kasarskis EJ, St Clair DK
    • Journal Title

      DNA Cell Biol. 18

      Pages: 709-722

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Prevention of mitochondrial injury by manganese superoxide dismutase reveals a primary mechanism for alkaline-induced cell death.1998

    • Author(s)
      Majima H, Oberley TD, Furukawa K, Mattson MP, Yen H-C, Szweda LI, St.Clair DK
    • Journal Title

      J.Biol.Chem. 273

      Pages: 8217-8224

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Evidence for mRNA expression of Vascular Endothelial Growth Factor by X-ray irradiation in a Lung Squamous Carcinoma Cell Line.1998

    • Author(s)
      Ando S, Nojima K, Majima H, Ishihara H, Suzuki M, Furusawa Y, Yamaguchi H, Koike S, Ando K, Yamauchi M, Kuriyama T
    • Journal Title

      Cancer Letter 132

      Pages: 75-80

    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Risk evaluation of cosmic-ray exposure in long-term manned space mission.1999

    • Author(s)
      Fujitaka K, Majima H, et al.
    • Total Pages
      187
    • Publisher
      Kodansha Scientific ltd. Tokyo
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2006-07-11  

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