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A risk assessment of adipocyte hypertrophy caused by environmental chemicals based on epigenetic information

Research Project

Project/Area Number 16K16193
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Risk sciences of radiation and chemicals
Research InstitutionUniversity of Miyazaki

Principal Investigator

ARAI YOSHIKAZU  宮崎大学, 農学部, 助教 (90614769)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsエピジェネティクス / 環境化学物質 / 脂肪細胞肥大化 / 脂肪細胞 / DNAメチル化 / 前駆脂肪細胞 / 肥満 / 有害化学物質 / 動物 / 発生・分化
Outline of Final Research Achievements

One of lifestyle-related diseases, obesity, is also recognized in children in recent years. Epidemiological studies have reported that the harmful chemicals present in the maternal environment act on the fetus through cord blood and lead to adipocytes hypertrophy causing child's obesity. In this study, the risk of chemicals in maternal environment causing adipocyte hypertrophy was evaluated using epigenetic information. Exposure of five chemicals (DEP, Hg, cotinine, Se, S-421) to preadipocytes at maternal serum concentrations resulted in no effect on epigenetic status based on heterochromatin formation. Furthermore, these chemicals did not affect adipocyte differentiation in vitro, suggesting that analyzed five chemicals do not cause adipocyte hypertrophy at maternal serum concentrations. Collectively, a risk of adipocyte hypertrophy caused by analyzed chemicals could be evaluated based on epigenetic information.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Invited: 2 results)

  • [Journal Article] DNA hypermethylation enhanced telomerase reverse transcriptase expression in human-induced pluripotent stem cells.2017

    • Author(s)
      Takasawa K, Arai Y, Yamazaki-Inoue M, Toyoda M, Akutsu H, Umezawa A, Nishino K.
    • Journal Title

      Human Cell

      Volume: 31 Issue: 1 Pages: 78-86

    • DOI

      10.1007/s13577-017-0190-x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of DNA methylation patterns of the <i>Fibrillin1</i> (<i>FBN1</i>) gene in porcine embryos and tissues2017

    • Author(s)
      Arai Y, Umeyama K, Takeuchi K, Okazaki N, Hichiwa N, Yashima S, Nakano K, Nagashima H, Ohgane J
    • Journal Title

      Journal of Reproduction and Development

      Volume: 63 Issue: 2 Pages: 157-165

    • DOI

      10.1262/jrd.2016-158

    • NAID

      130007314629

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evidence of exposure to chemicals and heavy metals during pregnancy in Japanese women2017

    • Author(s)
      Maekawa Ryo、Ito Rie、Iwasaki Yusuke、Saito Koichi、Akutsu Kazuhiko、Takatori Satoshi、Ishii Rie、Kondo Fumio、Arai Yoshikazu、Ohgane Jun、Shiota Kunio、Makino Tsunehisa、Sugino Norihiro
    • Journal Title

      Reproductive Medicine and Biology

      Volume: 16 Issue: 4 Pages: 337-348

    • DOI

      10.1002/rmb2.12049

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] ブタにおける OTC 欠損症原因遺伝子のエピジェネティック解析2018

    • Author(s)
      茂田 遼平, 新井 良和, 松成 ひとみ, 長嶋 比呂志, 大鐘 潤
    • Organizer
      第124回日本畜産学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] DNA メチル化によるブタ MSTN 遺伝子の組織特異的発現調節機構の解析2018

    • Author(s)
      隠地 健斗, 新井 良和, 長嶋 比呂志, 大鐘 潤
    • Organizer
      第124回日本畜産学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] アリルごとのDNAメチル化に着目したエピジェネティクス解析の新たな試み2017

    • Author(s)
      大鐘潤, 新井良和
    • Organizer
      日本農芸化学会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] ハプロ不全優性遺伝病の発症機序解明に向けた新たなアプローチ:ブタフィブリリン1 (Fbn1)のエピジェネティック解析2016

    • Author(s)
      新井良和、梅山一大、竹内健太、八島紗耶香、中野和明、長嶋比呂志、大鐘潤
    • Organizer
      第109回日本繁殖生物学会大会
    • Place of Presentation
      神奈川県
    • Year and Date
      2016-09-11
    • Related Report
      2016 Research-status Report
  • [Presentation] エピジェネティクスによる遺伝病発症機序解明への新たなアプローチ2016

    • Author(s)
      新井良和
    • Organizer
      明治大学・聖マリアンナ医科大学共同研究会
    • Place of Presentation
      神奈川県
    • Related Report
      2016 Research-status Report
    • Invited

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Published: 2016-04-21   Modified: 2019-03-29  

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