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2013 Fiscal Year Final Research Report

Analysis of the effects of oxidative stress on DNA methylation and the expression of active DNA demethylation related genes

Research Project

  • PDF
Project/Area Number 24790600
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hygiene
Research InstitutionJikei University School of Medicine

Principal Investigator

TAKUMI Shota  東京慈恵会医科大学, 医学部, 助教 (80570770)

Project Period (FY) 2012-04-01 – 2014-03-31
Keywords酸化ストレス / DNA脱メチル化 / エピジェネティクス / DNAメチル化
Research Abstract

In this study, we investigated the effects of oxidative stress on DNA methylation and the expression of active DNA demethylation related genes. The results of this study showed that paraquat-induced oxidative stress increased the expression of Aid, which is DNA demethylation related gene. Furthermore, over-expression of Aid increased some genes expression. Taken together, these results may suggest that the oxidative stress-induced activation of Aid is involved in those genes activation through the DNA demethylation. Further analysis of promoter methylation of Aid-activated genes will help to understand the effect of oxidative stress on DNA methylation.

  • Research Products

    (9 results)

All 2014 2013 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] Increase in incidence of hepatic tumors caused by oncogenic somatic mutation in mice maternally exposed to inorganic arsenic and the multigenerational and transgenerational effects of inorganic arsenic2014

    • Author(s)
      Nohara K, Suzuki T, Takumi S, Okamura K
    • Journal Title

      Nihon Eiseigaku Zasshi

      Volume: 69(2) Pages: 92-96

    • Peer Reviewed
  • [Journal Article] In vivo mutagenicity of arsenite in the livers of gpt delta transgenic mice2014

    • Author(s)
      Takumi S, Aoki Y, Sano T, Suzuki T, Nohmi T, Nohara K
    • Journal Title

      Mutat Res Genet Toxicol Environ Mutagen

      Volume: 760 Pages: 42-47

    • DOI

      10.1016/j.mrgentox.2013.12.001.

    • Peer Reviewed
  • [Journal Article] Genome-wide analysis of DNA methylation changes induced by gestational arsenic exposure in liver tumors2013

    • Author(s)
      Suzuki T, Yamashita S, Ushijima T, Takumi S, Sano T, Michikawa T, Nohara K
    • Journal Title

      Cancer Sci

      Volume: 104(12) Pages: 1575-1585

    • DOI

      10.1111/cas.12298.

    • Peer Reviewed
  • [Journal Article] Ceramide Aminoethylphosphonate from Jumbo flying squid Dosidicus gigas attenuates the toxicity of cyanotoxin microcystin-LR2013

    • Author(s)
      Komatsu M, Ichiyama N, Kurimoto T, Takumi S, Shiozaki K, Sugiyama Y, Furukawa T, Ando S, Itonori S, and Saito H
    • Journal Title

      Fisheries Science

      Volume: 79 Pages: 313-320

    • Peer Reviewed
  • [Presentation] 胎児期ヒ素曝露が標的臓器に及ぼす影響2014

    • Author(s)
      内匠正太、岡村和幸、鈴木武博、羽野寛、野原恵子、柳澤裕之
    • Organizer
      第84回日本衛生学会学術総会
    • Place of Presentation
      岡山
    • Year and Date
      2014-05-26
  • [Presentation] In Vivo Mutagenicity Assay of Arsenite Using Gpt Delta Transgenic Mice2014

    • Author(s)
      Takumi S, Aoki Y, Sano T, Suzuki T, Nohmi T and Nohara K
    • Organizer
      Society of Toxicology 53th Annual Meeting
    • Place of Presentation
      Arizona, USA
    • Year and Date
      2014-03-25
  • [Presentation] パラコート曝露による能動的脱メチル化酵素の発現誘導2013

    • Author(s)
      内匠正太、柳澤裕之、野原恵子
    • Organizer
      第16回環境ホルモン学会研究発表会
    • Place of Presentation
      東京
    • Year and Date
      2013-12-12
  • [Presentation] パラコート曝露が能動的脱メチル化関連酵素の発現に及ぼす影響2013

    • Author(s)
      内匠正太、野原恵子
    • Organizer
      第83回日本衛生学会学術総会
    • Place of Presentation
      金沢
    • Year and Date
      2013-03-26
  • [Remarks]

    • URL

      http://www.jikei.ac.jp/academic/course/14_hokeni.html

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Published: 2015-06-25  

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