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A novel DNT assessment of chemicals by mitochondrial factors in human iPSCs

Research Project

Project/Area Number 17K00576
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Risk sciences of radiation and chemicals
Research Institution一般社団法人日本薬理評価機構

Principal Investigator

Yamada Shigeru  一般社団法人日本薬理評価機構, 評価法開発センター, 客員研究員 (50508679)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords化学物質 / 発達神経毒性 / iPS細胞 / ミトコンドリア / 神経分化 / ミクログリア / 炎症応答 / サイトカイン / Mfn / Mfn1 / 自己複製 / 環境 / 有害化学物質 / 細胞・組織 / 発生・分化
Outline of Final Research Achievements

Chemical safety assessment avoids developmental neurotoxicity (DNT) induced by chemical exposure at human prenatal and postnatal stage. To date, chemicals are evaluated using pregnant rats and useful marker for DNT has not been determined. Here we investigated the toxicities of nanomaterial AgNPs and anti-cancer drug 5-FU, which have concern about DNT, using human iPSCs. We found that both compounds suppressed the expression levels of neural differentiation marker PAX6. Moreover, we found that these suppressive effects of neural induction were caused by degradation of mitochondrial fusion protein Mfn and subsequent mitochondrial dysfunction. These data suggest that Mfn can be used as a novel DNT target in human.

Academic Significance and Societal Importance of the Research Achievements

近年、子供の学習障害や自閉症などの発達障害が増加しており、その原因の一つとして発達期の環境中の化学物質の曝露が指摘されている。本研究では、ヒトiPS細胞を用いて新たな神経毒性評価マーカーとしてミトコンドリア機能蛋白質であるMfnを同定した。Mfn分解は異なる化学物質により共通で引き起こされるため、今後、発達毒性が懸念される化学物質のスクリーニングへの利用が期待できる。また、これまでヒトiPS細胞の神経分化メカニズムは不明な点が多かったが、本研究の過程でMfnが神経分化に関与する新規分化機構も見出した。今後、ミトコンドリアを介した分化メカニズムの解明により、幹細胞生物学に貢献できると考えられる。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (30 results)

All 2021 2020 2019 2018 2017

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (21 results) (of which Int'l Joint Research: 7 results) Book (1 results)

  • [Journal Article] Current challenges and future perspectives of iPSC-based neurotoxicity testing2021

    • Author(s)
      Tsunemoto Kazunobu、Yamada Shigeru、Kanda Yasunari
    • Journal Title

      Folia Pharmacologica Japonica

      Volume: 156 Issue: 2 Pages: 107-113

    • DOI

      10.1254/fpj.20097

    • NAID

      130007993026

    • ISSN
      0015-5691, 1347-8397
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Barrier Functions in Human iPSC-Derived Intestinal Epithelium2021

    • Author(s)
      Yamada Shigeru、Kanda Yasunari
    • Journal Title

      Methods in Molecular Biology

      Volume: 346 Pages: 1-9

    • DOI

      10.1007/7651_2021_346

    • ISBN
      9781071616727, 9781071616734
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Silver nanoparticles inhibits neural differentiation in human iPS Cells2019

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Journal Title

      Journal of Pharmacological and Toxicological Methods

      Volume: 99 Pages: 106595-106595

    • DOI

      10.1016/j.vascn.2019.05.195

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cryoprotectant-free cryopreservation of mammalian cells by superflash freezing2019

    • Author(s)
      Akiyama Yoshitake、Shinose Masato、Watanabe Hiroki、Yamada Shigeru、Kanda Yasunari
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 116 Issue: 16 Pages: 7738-7743

    • DOI

      10.1073/pnas.1808645116

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retinoic acid promotes barrier functions in human iPSC-derived intestinal epithelial monolayers2019

    • Author(s)
      Yamada Shigeru、Kanda Yasunari
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 140 Issue: 4 Pages: 337-344

    • DOI

      10.1016/j.jphs.2019.06.012

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 5-Fluorouracil inhibits neural differentiation via Mfn1/2 reduction in human induced pluripotent stem cells2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Journal Title

      The Journal of Toxicological Sciences

      Volume: 43 Issue: 12 Pages: 727-734

    • DOI

      10.2131/jts.43.727

    • NAID

      130007541019

    • ISSN
      0388-1350, 1880-3989
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tributyltin Inhibits Neural Induction of Human Induced Pluripotent Stem Cells2018

    • Author(s)
      Yamada Shigeru、Kubo Yusuke、Yamazaki Daiju、Sekino Yuko、Nomura Yoko、Yoshida Sachiko、Kanda Yasunari
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 12155-12155

    • DOI

      10.1038/s41598-018-30615-2

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Silver nanoparticles inhibit neural induction in human induced pluripotent stem cells2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Journal Title

      Nanotoxicology

      Volume: 12 Issue: 8 Pages: 836-846

    • DOI

      10.1080/17435390.2018.1481238

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] ヒトiPS細胞技術を用いたベンゾジアゼピン系薬物の統合的な安全性評価2021

    • Author(s)
      常本和伸、山田茂、諫田泰成
    • Organizer
      第94回日本薬理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] レチノイン酸はiPS由来ヒト小腸上皮のバリア機能を促進する2021

    • Author(s)
      山田茂、諫田泰成
    • Organizer
      第94回日本薬理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 微小電極アレイを用いたヒトiPS由来神経細胞の神経毒性評価2020

    • Author(s)
      山田茂、常本和伸、諫田泰成
    • Organizer
      第47回日本毒性学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Neurotoxicity assessment using microelectrode array recordings in human iPSC-derived neurons2020

    • Author(s)
      Yamada S, Tsunemoto K, Kanda Y
    • Organizer
      ASCCT 9th Annual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒトiPS細胞を用いたマンガンの神経毒性評価2020

    • Author(s)
      常本和伸、山田茂、諫田泰成
    • Organizer
      メタルバイオサイエンス研究会2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] iPS細胞技術を用いたヒト小腸オルガノイドの作製2020

    • Author(s)
      山田茂、諫田泰成
    • Organizer
      第93回日本薬理学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 銀ナノ粒子によるヒトiPS細胞の神経分化抑制2019

    • Author(s)
      山田茂、諫田泰成
    • Organizer
      第46回日本毒性学会
    • Related Report
      2019 Research-status Report
  • [Presentation] ヒトiPS細胞技術を用いた統合的な発達神経毒性評価法の開発2019

    • Author(s)
      山田茂、常本和伸、諫田泰成
    • Organizer
      第5回次世代を担う若手のためのレギュラトリーサイエンスフォーラム
    • Related Report
      2019 Research-status Report
  • [Presentation] ヒトiPS細胞の神経分化能を指標にした発達神経毒性評価2019

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第92回日本薬理学会
    • Related Report
      2018 Research-status Report
  • [Presentation] ヒトiPS細胞の神経分化に対する銀ナノ粒子曝露の影響2018

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      メタルバイオサイエンス研究会2018
    • Related Report
      2018 Research-status Report
  • [Presentation] Silver nanoparticles inhibit neural induction via mitochondrial dysfunction in human induced pluripotent stem cells2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Developmental neurotoxicity evaluation using human iPS cells2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Organizer
      China TATT-Asia CA 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Assessment of neurotoxicity of silver nanoparticles using human iPS cell-based platform2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Organizer
      Safety Pharmacology Society 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヒトiPS細胞のミトコンドリア機能に基づく発達神経毒性の評価2018

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第4回次世代を担う若手のためのレギュラトリーサイエンスフォーラム
    • Related Report
      2018 Research-status Report
  • [Presentation] Novel role of mitochondrial fusion factor Mfn1 in neural differentiation of human iPS cells2018

    • Author(s)
      Yamada Shigeru、Yamazaki Daiju、Kanda Yasunari
    • Organizer
      18th World Congress of Basic and Clinical Pharmacology (WCP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ミトコンドリアを介した新たな神経分化機構の解析2018

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第17回日本再生医療学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Novel mechanism of neural differentiation via mitochondrial factor Mfn1 in human iPS cells2018

    • Author(s)
      Shigeru Yamada, Daiju Yamazaki, Yasunari Kanda
    • Organizer
      Keystone Symposia
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヒトiPS細胞の神経分化に対するトリブチルスズの影響2017

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第44回日本毒性学会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヒトiPS細胞の神経分化に対するクロルピリホス曝露の影響2017

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第136回日本薬理学会関東部会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヒトiPS細胞の神経分化能を指標にした発達神経毒性評価系の開発2017

    • Author(s)
      山田茂、山崎大樹、諫田泰成
    • Organizer
      第3回次世代を担う若手のためのレギュラトリーサイエンスフォーラム
    • Related Report
      2017 Research-status Report
  • [Presentation] Development of human iPS cell-based platform for developmental neurotoxicity testing2017

    • Author(s)
      Shigeru Yamada, Daiju Yamazaki, Yasunari Kanda
    • Organizer
      Safety Pharmacology Society
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] ヒトiPS細胞を用いた医薬品の副作用予測法の開発と国際標準化2019

    • Author(s)
      佐塚文乃、山田茂、山崎大樹、諫田泰成
    • Total Pages
      10
    • Publisher
      技術情報協会
    • ISBN
      9784861047374
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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