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A novel function of hydrogen sulfide: Protection against heavy metal-induced neurotoxicity

Research Project

Project/Area Number 17K08957
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied pharmacology
Research InstitutionGifu Pharmaceutical University

Principal Investigator

Hara Hirokazu  岐阜薬科大学, 薬学部, 准教授 (30305495)

Co-Investigator(Kenkyū-buntansha) 足立 哲夫  岐阜薬科大学, 薬学部, 教授 (40137063)
神谷 哲朗  岐阜薬科大学, 薬学部, 講師 (60453057)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords硫化水素 / 亜鉛 / 銅 / 神経細胞 / 酸化ストレス / 活性イオウ分子種 / 神経細胞死 / 活性酸素 / 神経細胞保護 / 細胞死 / 細胞保護作用 / 神経変性疾患
Outline of Final Research Achievements

Zinc (Zn) aggravates brain damage after cerebral ischemia, since disturbance of zinc homeostasis in the brain induces neurotoxicity. Therefore, improvement of zinc disturbance may be a therapeutic approach for cerebral ischemia. Hydrogen sulfide (H2S) is involved in the detoxification of heavy metals. In this study, we found that H2S protected against Zn cytotoxicity in neuronal cells by preventing Zn influx into cells. Copper (Cu) is an essential trace element, whereas excess Cu is toxic to cells. We examined the effects of H2S on Cu cytotoxicity. Cu enhanced its cytotoxicity in the presence of H2S. The combination of Cu and H2S increased the amount of intracellular Cu compared with Cu alone. Thus, we concluded that the increased intracellular Cu accumulation elevates Cu cytotoxicity.
These findings suggest that H2S regulates the cellular dynamics of heavy metals.

Academic Significance and Societal Importance of the Research Achievements

本研究の実施により、H2Sが神経細胞内外のZnやCu動態の制御因子として機能している可能性が示された。金属イオンの細胞内外の恒常性の破綻は、脳梗塞などの虚血性脳血管障害による神経細胞傷害以外に、アルツハイマー病やパーキンソン病などの神経変性疾患の発症とも密接に関連していることが報告されている。それゆえ、今回明らかとなったH2Sが金属イオンの細胞内動態を制御するというH2Sの新規機能は、神経変性疾患の病態解明のみならず、有効な治療薬が少ない神経変性疾患の新規治療薬の開発にも繋がる重要な知見となると考えられる。

Report

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

    (14 results)

All 2020 2019 2018 2017 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (9 results) (of which Invited: 2 results) Remarks (1 results)

  • [Journal Article] Hydrogen sulfide increases copper-dependent neurotoxicity via intracellular copper accumulation2020

    • Author(s)
      Goto N, Hara H, Kondo M, Yasuda N, Kamiya T, Okuda K, Adachi T
    • Journal Title

      Metallomics

      Volume: - Issue: 6 Pages: 868-875

    • DOI

      10.1039/d0mt00015a

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sublethal treatment with plasma-activated medium induces senescence-like growth arrest of A549 cells: involvement of intracellular mobile zinc2019

    • Author(s)
      Hara H, Kobayashi M, Shiiba M, Kamiya T, Adachi T
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 65 Issue: 1 Pages: 16-22

    • DOI

      10.3164/jcbn.19-17

    • NAID

      130007672102

    • ISSN
      0912-0009, 1880-5086
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of NAMPT markedly enhances plasma-activated mediuminduced cell death in human breast cancer MDA-MB-231 cells2019

    • Author(s)
      Nagaya M, Hara H, Kamiya T, Adachi T
    • Journal Title

      Arch Biochem Biophys

      Volume: 676 Pages: 108155-108155

    • DOI

      10.1016/j.abb.2019.108155

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen sulfide ameliorates zinc-induced cell death in neuroblastoma SH-SY5Y cells2017

    • Author(s)
      Megumi Shimoji, Hirokazu Hara, Tetsuro Kamiya, Kensuke Okuda, and Tetsuo Adachi
    • Journal Title

      Free Radical Res.

      Volume: 51 Issue: 11-12 Pages: 978-985

    • DOI

      10.1080/10715762.2017.1400666

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 神経毒6-ヒドロキシドパミンが銅動態制御因子発現に及ぼす影響2020

    • Author(s)
      近藤真央,原 宏和,神谷哲朗,足立哲夫
    • Organizer
      日本薬学会第140年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 硫化水素による銅毒性増強作用における銅トランスポーターの関与2019

    • Author(s)
      近藤真央,後藤紀香,原 宏和,神谷哲朗,足立哲夫
    • Organizer
      第83回日本生化学会中部支部例会・シンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] 脳内亜鉛恒常性破綻と神経細胞傷害2019

    • Author(s)
      原 宏和
    • Organizer
      第46回 日本毒性学会学術年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 亜鉛誘導性神経細胞死に対するポリサルファイドの抑制効果2019

    • Author(s)
      大上綾音、原 宏和、神谷哲朗、足立哲夫
    • Organizer
      日本酸化ストレス学会東海支部第7回学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 硫化水素による銅誘導性神経細胞傷害の増強の分子機構2018

    • Author(s)
      後藤紀香、原 宏和、神谷哲朗、足立哲夫
    • Organizer
      第29回日本微量元素学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] 硫化水素は銅による神経毒性を増強する2018

    • Author(s)
      原 宏和、後藤紀香、神谷哲朗、足立哲夫
    • Organizer
      メタルバイオサイエンス研究会2018
    • Related Report
      2018 Research-status Report
  • [Presentation] Contribution of Iintracellular Mobile Zinc to Anti-Cancer Effects of Plasma-Activated Medium2018

    • Author(s)
      Hara H, Adachi T
    • Organizer
      5th International Workshop on Plasma for Cancer Treatment (IWPCT 2018)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 硫化水素ドナーは亜鉛により惹起される神経細胞死を抑制する2017

    • Author(s)
      下地 萌,原 宏和,神谷哲朗,足立哲夫
    • Organizer
      第81回日本生化学会中部支部例会・シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 硫化水素は神経細胞に対する亜鉛毒性を軽減する2017

    • Author(s)
      原宏和,下地萌,神谷哲朗,奥田健介,足立哲夫
    • Organizer
      メタルバイオサイエンス研究会2017
    • Related Report
      2017 Research-status Report
  • [Remarks] 岐阜薬科大学 臨床薬剤学研究室

    • URL

      http://sv1.gifu-pu.ac.jp/lab/rinyaku/

    • Related Report
      2019 Annual Research Report 2018 Research-status Report 2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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