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Regulation of transcription factor Nrf2 activity by the stress sensor Keap1

Research Project

Project/Area Number 19K07340
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48040:Medical biochemistry-related
Research InstitutionTohoku University

Principal Investigator

Suzuki Takafumi  東北大学, 医学系研究科, 准教授 (70508308)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsKeap1 / Nrf2
Outline of Research at the Start

酸化ストレスに対する応答系の破綻は様々な疾患発症と密接に関わっている。ストレスセンサーKeap1は転写因子Nrf2のユビキチン化反応を制御し、酸化ストレス防御機構の中心的役割を担う鍵因子である。これまでに私たちは、Keap1-Nrf2制御系による親電子性物質の感知に重要なセンサーシステイン残基の同定に成功した。しかし、同制御系の活性酸素種に対する感知機構は未だ不明である。本研究では、Keap1の活性酸素種センサーの同定と生理機能解明、さらに酸化ストレス応答におけるNrf2活性化の分子基盤の解明を目指す。

Outline of Final Research Achievements

Disruption of the response system to oxidative stress is closely related to the development of various diseases. To prevent such diseases, cells respond rapidly to oxidative stress and maintain homeostasis. The stress sensor Keap1 regulates the ubiquitination of the transcription factor Nrf2 and is a key factor that plays a central role in the oxidative stress defense mechanism. In this study, we aimed to identify the reactive oxygen species sensor of Keap1 and elucidate its physiological function, as well as the molecular basis of Nrf2 activation in the oxidative stress response. Furthermore, we aimed to elucidate the molecular mechanism of oxidative stress response by the Keap1-Nrf2 regulatory system through structure-function linkage analysis.

Academic Significance and Societal Importance of the Research Achievements

本研究では、Keap1が活性酸素種を感知するメカニズムを明らかにしました。このメカニズムは、親電子性物質を感知するメカニズムとは異なり、Keap1はセンサーを使い分けてストレスを感知していることが明らかになりました。本研究を進めていくことで、Keap1-Nrf2システムの活性化メカニズムの分子基盤の理解が進み、Keap1-Nrf2システムを利用した新薬や治療法の開発が加速することが期待されます。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (10 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (6 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Dundee University(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Fred Hutchinson Cancer Research Center(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] The isoquinoline PRL-295 increases the thermostability of Keap1 and disrupts its interaction with Nrf22022

    • Author(s)
      Dayalan Naidu S、Suzuki T、Dikovskaya D、Knatko EV、Higgins M、Sato M、Novak M、Villegas JA、Moore TW、Yamamoto M、Dinkova-Kostova AT.
    • Journal Title

      iScience

      Volume: 25 Issue: 1 Pages: 103703-103703

    • DOI

      10.1016/j.isci.2021.103703

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gene expression changes related to bone mineralization, blood pressure and lipid metabolism in mouse kidneys after space travel2022

    • Author(s)
      Suzuki Norio、Iwamura Yuma、Nakai Taku、Kato Koichiro、Otsuki Akihito、Uruno Akira、Saigusa Daisuke、Taguchi Keiko、Suzuki Mikiko、Shimizu Ritsuko、Yumoto Akane、Okada Risa、Shirakawa Masaki、Shiba Dai、Takahashi Satoru、Suzuki Takafumi、Yamamoto Masayuki
    • Journal Title

      Kidney International

      Volume: 101 Issue: 1 Pages: 92

    • DOI

      10.1016/j.kint.2021.09.031

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distinct Regulations of HO-1 Gene Expression for Stress Response and Substrate Induction2021

    • Author(s)
      Zhang Anqi、Suzuki Takafumi、Adachi Saki、Naganuma Eriko、Suzuki Norio、Hosoya Tomonori、Itoh Ken、Sporn Michael B.、Yamamoto Masayuki
    • Journal Title

      Molecular and Cellular Biology

      Volume: 41 Issue: 11 Pages: 0023621-0023621

    • DOI

      10.1128/mcb.00236-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Novel method for evaluating the health condition of mice in space through a video downlink2021

    • Author(s)
      YUMOTO Akane、KOKUBO Toshiaki、IZUMI Ryutaro、SHIMOMURA Michihiko、FUNATSU Osamu、TADA Motoki N.、OTA-MURAKAMI Naoko、IINO Kayoko、SHIRAKAWA Masaki、MIZUNO Hiroyasu、KUDO Takashi、TAKAHASHI Satoru、SUZUKI Takafumi、URUNO Akira、YAMAMOTO Masayuki、SHIBA Dai
    • Journal Title

      Experimental Animals

      Volume: 70 Issue: 2 Pages: 236-244

    • DOI

      10.1538/expanim.20-0102

    • NAID

      130008037417

    • ISSN
      0007-5124, 1341-1357, 1881-7122
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nrf2 is activated by disruption of mitochondrial thiol homeostasis but not by enhanced mitochondrial superoxide production2021

    • Author(s)
      Cvetko Filip、Caldwell Stuart T.、Higgins Maureen、Suzuki Takafumi、Yamamoto Masayuki、Prag Hiran A.、Hartley Richard C.、Dinkova-Kostova Albena T.、Murphy Michael P.
    • Journal Title

      Journal of Biological Chemistry

      Volume: 296 Pages: 100169-100169

    • DOI

      10.1074/jbc.ra120.016551

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Geldanamycin-derived HSP90 inhibitors are synthetic lethal with NRF22020

    • Author(s)
      Baird Liam、Suzuki Takafumi、Takahashi Yushi、Hishinuma Eiji、Saigusa Daisuke、Yamamoto Masayuki
    • Journal Title

      Molecular and Cellular Biology

      Volume: 40 Issue: 22 Pages: 1-22

    • DOI

      10.1128/mcb.00377-20

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nrf2 contributes to the weight gain of mice during space travel2020

    • Author(s)
      Suzuki, T., et al., Koshiba, S. et al., Yamamoto, M.(合計37名、本研究者は18番目)
    • Journal Title

      Communications Biology

      Volume: 3 Issue: 1 Pages: 496

    • DOI

      10.1038/s42003-020-01227-2

    • NAID

      120007161347

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Environmental pollutants and the immune response2020

    • Author(s)
      Suzuki Takafumi、Hidaka Takanori、Kumagai Yoshito、Yamamoto Masayuki
    • Journal Title

      Nature Immunology

      Volume: 21 Issue: 12 Pages: 1486-1495

    • DOI

      10.1038/s41590-020-0802-6

    • NAID

      40022683384

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular Mechanism of Cellular Oxidative Stress Sensing by Keap12019

    • Author(s)
      Suzuki Takafumi、Muramatsu Aki、Saito Ryota、Iso Tatsuro、Shibata Takahiro、Kuwata Keiko、Kawaguchi Shin-ichi、Iwawaki Takao、Adachi Saki、Suda Hiromi、Morita Masanobu、Uchida Koji、Baird Liam、Yamamoto Masayuki
    • Journal Title

      Cell Reports

      Volume: 28 Issue: 3 Pages: 746-758

    • DOI

      10.1016/j.celrep.2019.06.047

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bardoxolone methyl analog attenuates proteinuria-induced tubular damage by modulating mitochondrial function2019

    • Author(s)
      Nagasu Hajime、Sogawa Yuji、Kidokoro Kengo、Itano Seiji、Yamamoto Toshiya、Satoh Minoru、Sasaki Tamaki、Suzuki Takafumi、Yamamoto Masayuki、Wigley W. Christian、Proksch Joel W.、Meyer Colin J.、Kashihara Naoki
    • Journal Title

      The FASEB Journal

      Volume: 33 Issue: 11 Pages: 12253-12263

    • DOI

      10.1096/fj.201900217r

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Establishment of Hmox1-DsRed reporter mouse system.2020

    • Author(s)
      Anqi Zhang, Saki Adachi, Tomonori Hosoya, Ken Itoh, Takafumi Suzuki, Masayuki Yamamoto.
    • Organizer
      第86回日本生化学会東北支部例会
    • Related Report
      2020 Research-status Report
  • [Presentation] Multiple sensor mechanism of the Keap1-Nrf2 system.2019

    • Author(s)
      Takafumi Suzuki and Masayuki Yamamoto.
    • Organizer
      The Environmental Response V, 17th JBS Biofrontier Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular mechanism of cellular oxidative stress sensing by Keap1.2019

    • Author(s)
      Takafumi Suzuki, Aki Muramatsu, Ryota Saito, Tatsuro Iso, Saki Adachi, Hiromi Suda, Masanobu Morita, Liam Baird, Masayuki Yamamoto
    • Organizer
      The Environmental Response V, 17th JBS Biofrontier Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Activation of transcription factor Nrf2 suppresses autoimmune arthritis.2019

    • Author(s)
      Saki Adachi, Eiki Yoshida, Eriko Naganuma, Takafumi Suzuki, Masayuki Yamamoto
    • Organizer
      The Environmental Response V, 17th JBS Biofrontier Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification of a compound which is synthetic lethal with Nrf2 activity.2019

    • Author(s)
      Liam Baird, Takafumi Suzuki, Masayuki Yamamoto.
    • Organizer
      The Environmental Response V, 17th JBS Biofrontier Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Verification of the hinge & latch mechanism of Keap1-Nrf2 system by NMR method.2019

    • Author(s)
      Yuta Horie, Tatsuro Iso, Jin Inoue, Takafumi Suzuki, Seizo Koshiba, Takashi Kamei, Masayuki Yamamoto.
    • Organizer
      The Environmental Response V, 17th JBS Biofrontier Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 東北大学大学院医学系研究科医化学分野

    • URL

      http://www.dmbc.med.tohoku.ac.jp/official/index.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report 2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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