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Development the culture method for primary hepatocyte to keeping a same response range in vitro and in vivo for exogenous stimulus.

Research Project

Project/Area Number 17K19916
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Health science and related fields
Research InstitutionSaga University

Principal Investigator

Tsujita Tadayuki  佐賀大学, 農学部, 講師 (20622046)

Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
KeywordsNrf1 / 低酸素 / 肝細胞 / 初代培養 / 安全性試験 / 酸素
Outline of Final Research Achievements

When we develop a primary hepatocyte in low oxygen condition from the beginning, the cellular motility of final hepatocyte is lower than when we conduct those strategy in normoxic condition. This method provided us to higher sensitivity for exogenous stimulus including oxidative stress and ER stress. In addition, the hepatocyte that was prepared in normoxic condition has lower levels of stress transcriptional factor, Nrf1 and Nrf2. This condition leads the hepatocyte to lower response fate for exogenous stimulus and lower detoxification activity. We have found that the glycomodifier enzyme, PNGase was contributed to controlling Nrf1 protein level during primary hepatocyte preparation in lower oxygen condition.

Academic Significance and Societal Importance of the Research Achievements

10%程度の低酸素下での肝細胞を調整すると、酸化ストレス、小胞体ストレスなどの刺激に対する感受性が鋭敏になることが確認できた。今後、iPSから樹立されたヒト肝細胞を用いて、低酸素下で薬効試験等を行うことで、in vivoとin vitroとの感受性の乖離を減少させることが可能となり、早期に化合物の生体内での代謝評価を実施できると期待される。

Report

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

    (15 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] ヘルムホルツ研究所(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Furan- and Thiophene-2-Carbonyl Amino Acid Derivatives Activate Hypoxia-Inducible Factor via Inhibition of Factor Inhibiting Hypoxia-Inducible Factor-12018

    • Author(s)
      Kawaguchi Shin-Ichi, Gonda Yuhei, Yamamoto Takuya, Sato Yuki, Shinohara Hiroyuki, Kobiki Yohsuke, Ichimura Atsuhiko, Dan Takashi, Sonoda Motohiro, Miyata Toshio, Ogawa Akiya, Tsujita Tadayuki
    • Journal Title

      Molecules

      Volume: 23 Issue: 4 Pages: 885-885

    • DOI

      10.3390/molecules23040885

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] O-GlcNAcylation Signal Mediates Proteasome Inhibitor Resistance in Cancer Cells by Stabilizing NRF12018

    • Author(s)
      Sekine Hiroki、Okazaki Keito、Kato Koichiro、Alam M. Morshedul、Shima Hiroki、Katsuoka Fumiki、Tsujita Tadayuki、Suzuki Norio、Kobayashi Akira、Igarashi Kazuhiko、Yamamoto Masayuki、Motohashi Hozumi
    • Journal Title

      Molecular and Cellular Biology

      Volume: 38 Issue: 17 Pages: 00252-18

    • DOI

      10.1128/mcb.00252-18

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A ubiquitin-proteasome inhibitor bortezomib suppresses the expression of CYP11B2, a key enzyme of aldosterone synthesis2017

    • Author(s)
      Ito Ryo、Sato Ikuko、Tsujita Tadayuki、Yokoyama Atsushi、Sugawara Akira
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 489 Issue: 1 Pages: 21-28

    • DOI

      10.1016/j.bbrc.2017.05.109

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-resolved Fluorescent Detection for Glucose Using a Complex of Luminescent Layered Titanates and Enzymes2017

    • Author(s)
      SAKAGUCHI Yuki、MINAMIKAWA Tomoka、YAMAMURO Mayuko、TSUJITA Tadayuki、UEDA Toshihisa、KAMADA Kai、SOH Nobuaki
    • Journal Title

      Analytical Sciences

      Volume: 33 Issue: 9 Pages: 989-991

    • DOI

      10.2116/analsci.33.989

    • NAID

      130006071189

    • ISSN
      0910-6340, 1348-2246
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Induction of erythropoietin gene expression in epithelial cells by chemicals identified in GATA inhibitor screenings2017

    • Author(s)
      Kaneko Hiroshi、Katoh Takehide、Hirano Ikuo、Hasegawa Atsushi、Tsujita Tadayuki、Yamamoto Masayuki、Shimizu Ritsuko
    • Journal Title

      Genes Cells

      Volume: 22 Issue: 11 Pages: 939-952

    • DOI

      10.1111/gtc.12537

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Discovering the sunny and dark side of Nrf1 transcriptional factor and its utilization2019

    • Author(s)
      Tadayuki Tsujita
    • Organizer
      31st annual congress of the PGIA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] HIF分解を制御するPHDタンパク質をアロステリックに阻害する新規化合物の探索.2018

    • Author(s)
      園田健登, 廣津留倖一, 北川尚穂, 川口真一, 辻田忠志
    • Organizer
      平成 30年度日本生化学会九州支部例会
    • Related Report
      2018 Research-status Report
  • [Presentation] 分子選択的なHIF活性化低分子化合物の開発2018

    • Author(s)
      黒木紗英, 辻田忠志, 川口真一
    • Organizer
      第42回蛋白質と酵素の構造と機能に関する九州シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] PHDタンパク質にアロステリックに作用し、低酸素応答因子HIFを安定化する新規化合物の探索.2018

    • Author(s)
      園田健登, 廣津留倖一, 北川尚穂, 川口真一, 辻田忠志
    • Organizer
      第91回日本生化学会大会. 国立京都国際会館
    • Related Report
      2018 Research-status Report
  • [Presentation] Functional analysis and advanced application for drug discovery with environmental response transcriptional factors2017

    • Author(s)
      辻田忠志
    • Organizer
      第6回脳科学セミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 唐津地産抽出物ライブラリーに含まれる有効成分の培養細胞による評価抗酸化活性を評価できるモニター細胞の創出とその応用2017

    • Author(s)
      辻田忠志
    • Organizer
      第5回JCC産学交流セミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] アロステリックなPHD活性阻害によるHIF誘導低分子化合物の創出.2017

    • Author(s)
      廣津留倖一, 北川尚穂, 川口真一, 辻田忠志
    • Organizer
      第41回蛋白質と酵素の構造と機能に関する九州シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] リガンド2OGの構造に基づいた分子設計による低酸素誘導因子の活性化2017

    • Author(s)
      黒木紗英, 辻田忠志, 川口真一
    • Organizer
      第41回蛋白質と酵素の構造と機能に関する九州シンポジウム
    • Related Report
      2017 Research-status Report
  • [Remarks] 佐賀大学 農学部 生命機能科学科 生化学分野

    • URL

      http://seika.ag.saga-u.ac.jp/index.php?FrontPage

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-07-21   Modified: 2021-02-19  

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