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Analysis on molecular mechanisms for tissue-specific toxicity of heavy metals

Research Project

Project/Area Number 19H03375
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47030:Pharmaceutical hygiene and biochemistry-related
Research InstitutionShowa University

Principal Investigator

Hara Shuntaro  昭和大学, 薬学部, 教授 (50222229)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2019: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords脂質代謝 / 過酸化脂質 / 毒性発現 / 重金属 / 生理活性脂質
Outline of Research at the Start

体内に取り込まれた重金属は、標的組織に運ばれ、酸化ストレスを誘導したり炎症反応を惹起したりすることにより毒性を発現する。重金属の毒性の多くは組織特異的であるが、必ずしも重金属が高蓄積した組織が標的となるとは限らず、重金属の組織特異的毒性発現機構については未だ不明な点が多い。そこで、本研究では、マウスに重金属を曝露した際に標的組織で生じる脂質組成や過酸化脂質・生理活性脂質産生等の脂質プロファイルの変化に注目する。脂質プロファイルを網羅的に解析するトキシコリピドミクスの手法と、脂質代謝酵素の遺伝子欠損マウスを用いた解析を組み合わせることにより、重金属の組織特異的毒性発現機構を明らかにする。

Outline of Final Research Achievements

In order to reveal molecular mechanisms for tissue-specific toxicity of heavy metals, we performed toxicolipidomics, in which we comprehensively investigated chemicals-induced alterations in lipid profiles, and investigated the effects of gene knockout or knockdown of lipid metabolizing enzymes, which are involved in generation or elimination of lipid peroxides and/or production of bioactive lipids, on heavy metals-induced tissue-specific toxicity. As the results, we found that expressions of long-chain acyl-CoA synthetase ACSL4 and calcium-independent phospholipase A2 gamma and the generation of lipid peroxides controlled by these enzymes in target tissues might be critical for tissue-specific toxicity of heavy metals.

Academic Significance and Societal Importance of the Research Achievements

メチル水銀やカドミウムといった重金属を過剰に摂取すると、脳や腎臓といった特異的な組織に障害がもたらされるが、その組織特異的な毒性発現機構についてはほとんどわかっていない。この機構がわかれば、毒性をいかに軽減するか、解毒するかにつながることも期待される。本研究では、組織における脂質組成や脂質代謝酵素発現に関する解析を通じて、毒性が発現する組織での過酸化脂質の生成が重金属毒性に深く関与することを明らかにすることができた。

Report

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

    (33 results)

All 2022 2021 2020 2019

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (24 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results)

  • [Journal Article] Role of ACSL4 in the chemical-induced cell death in human proximal tubule epithelial HK-2 cells2022

    • Author(s)
      Kuwata Hiroshi、Tomitsuka Yuki、Yoda Emiko、Hara Shuntaro
    • Journal Title

      Bioscience Reports

      Volume: 42 Issue: 2

    • DOI

      10.1042/bsr20212433

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Substrate Specificity of Human Long-Chain Acyl-CoA Synthetase ACSL6 Variants2021

    • Author(s)
      Kurotaki Anri、Kuwata Hiroshi、Hara Shuntaro
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 44 Issue: 10 Pages: 1571-1575

    • DOI

      10.1248/bpb.b21-00551

    • NAID

      130008095842

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2021-10-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Absence of prostacyclin greatly relieves cyclophosphamide‐induced cystitis and bladder pain in mice2021

    • Author(s)
      Ochiai Tsubasa、Sasaki Yuka、Yokoyama Chieko、Kuwata Hiroshi、Hara Shuntaro
    • Journal Title

      The FASEB Journal

      Volume: 35 Issue: 10

    • DOI

      10.1096/fj.202101025r

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 新たな細胞死フェロトーシスの制御因子としての長鎖アシルCoA合成酵素4(ACSL4)2021

    • Author(s)
      冨塚祐希、桑田浩、原俊太郎
    • Journal Title

      昭和学士会雑誌

      Volume: 81 Pages: 380-386

    • NAID

      130008142376

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gene deletion of microsomal prostaglandin E synthase-1 suppresses chemically induced skin carcinogenesis2021

    • Author(s)
      Sasaki, Y., Kuwata, H., Aida, E., Ochiai, T., Kamei, D., Nakatani, Y., Hara, S.
    • Journal Title

      Anticancer Research

      Volume: 41 Issue: 3 Pages: 1307-1314

    • DOI

      10.21873/anticanres.14888

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coordinated action of microsomal prostaglandin E synthase-1 and prostacyclin synthase on contact hypersensitivity2021

    • Author(s)
      Ochiai, T., Sasaki, Y., Kuwata, H., Nakatani, Y., Yokoyama, C., Hara, S.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 546 Pages: 124-129

    • DOI

      10.1016/j.bbrc.2021.02.004

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ferroptosis driven by radical oxidation of n-6 fatty acids mediates acetaminophen-induced acute liver failure.2020

    • Author(s)
      2)Yamada N, Karasawa T, Kimura H, Watanabe S, Komada T, Kamata R, Sampilvanjil A, Ito J, Nakagawa K, Kuwata H, Hara S, Sakuma Y, Sata N, Takahashi M
    • Journal Title

      Cell Death Dis

      Volume: 11 Issue: 2 Pages: 144-144

    • DOI

      10.1038/s41419-020-2334-2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of acyl-CoA synthetase ACSL4 in arachidonic acid metabolism2019

    • Author(s)
      Kuwata Hiroshi、Hara Shuntaro
    • Journal Title

      Prostaglandins & Other Lipid Mediators

      Volume: 144 Pages: 106363-106363

    • DOI

      10.1016/j.prostaglandins.2019.106363

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-chain acyl-CoA synthetase 4 participates in the formation of highly unsaturated fatty acid-containing phospholipids in murine macrophages2019

    • Author(s)
      Kuwata Hiroshi、Nakatani Eriko、Shimbara-Matsubayashi Satoko、Ishikawa Fumihiro、Shibanuma Motoko、Sasaki Yuka、Yoda Emiko、Nakatani Yoshihito、Hara Shuntaro
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

      Volume: 1864 Issue: 11 Pages: 1606-1618

    • DOI

      10.1016/j.bbalip.2019.07.013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] プロスタサイクリン合成酵素の欠損が化学物質による膀胱発がんを促進するメカニズムの解明2022

    • Author(s)
      佐々木由香、遠藤勇気、鈴木康友、近藤幸尋、横山知永子、原俊太郎
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] パラコートの肺毒性発現における長鎖アシルCoA合成酵素(ACSL)4の役割の解析2022

    • Author(s)
      冨塚祐希、桑田浩、原俊太郎
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大腸疾患における長鎖アシルCoA合成酵素-4の機能解析2022

    • Author(s)
      落合翔、桑田浩、原俊太郎
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] パラコート誘発性肺障害における長鎖アシルCoA合成酵素4の役割の解析2021

    • Author(s)
      冨塚祐希、桑田浩、原俊太郎
    • Organizer
      第21回Pharmaco-Hematologyシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高度不飽和脂肪酸の活性化の阻害が炎症応答に及ぼす影響2021

    • Author(s)
      桑田浩、原俊太郎
    • Organizer
      第21回Pharmaco-Hematologyシンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 出血性膀胱炎におけるプロスタサイクリンの機能解析2021

    • Author(s)
      落合翔、佐々木由香、横山知永子、原俊太郎
    • Organizer
      第63回日本脂質生化学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] パラコート誘発性肺障害における長鎖アシルCoA合成酵素4の役割の解析2021

    • Author(s)
      冨塚祐希、桑田浩、原俊太郎
    • Organizer
      フォーラム2021: 衛生薬学・環境トキシコロジー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Prostacyclin exacerbates cyclophosphamide-induced hemorrhagic cystitis2021

    • Author(s)
      Ochiai, T., Sasaki, Y., Yokoyama, C., Kuwata, H., Hara, S.
    • Organizer
      2021 Japan/Korea Joint Symposium on Pharmaceutical Health Science and Environmental Toxicology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] メチル水銀による中枢神経毒性における脂質代謝機構の解明2020

    • Author(s)
      依田恵美子、原俊太郎
    • Organizer
      第62回日本脂質生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 出血性膀胱炎におけるプロスタグランジン最終合成酵素の機能解析2020

    • Author(s)
      落合翔、佐々木由香、横山知永子、原俊太郎
    • Organizer
      第62回日本脂質生化学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高度不飽和脂肪酸選択的アシルCoA合成酵素、ASCL4の生体内機能の解析2020

    • Author(s)
      桑田浩、原俊太郎
    • Organizer
      フォーラム2020: 衛生薬学・環境トキシコロジー
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] シクロホスファミド誘導出血性膀胱炎におけるプロスタサイクリン合成酵素の機能解析2020

    • Author(s)
      落合翔、吉田七虹、前田芽依、佐々木由香、横山知永子、原俊太郎
    • Organizer
      フォーラム2020: 衛生薬学・環境トキシコロジー
    • Related Report
      2020 Annual Research Report
  • [Presentation] 出血性膀胱炎におけるプロスタグランジン最終合成酵素の機能解析2020

    • Author(s)
      落合翔、佐々木由香、横山知永子、原俊太郎
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 出血性膀胱炎におけるプロスタグランジン最終合成酵素の機能解析2020

    • Author(s)
      落合翔、佐々木由香、横山知永子、原俊太郎
    • Organizer
      日本薬学会第140年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 膀胱癌細胞に対するシスプラチンの抗腫瘍効果増強因子の探索2020

    • Author(s)
      依田恵美子、中山聡子、鈴木康友、近藤幸尋、原俊太郎
    • Organizer
      日本薬学会第140年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of methylmercury on membrane phospholipid metabolism2019

    • Author(s)
      Yoda, E., Hara, S.
    • Organizer
      60th International Conference on the Bioscience of Lipids (ICBL2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of acyl-CoA synthetase ACSL4 in inflammatory reactions2019

    • Author(s)
      Hara, S., Kuwata, H.
    • Organizer
      60th International Conference on the Bioscience of Lipids (ICBL2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The in vivo roles of long-chain acyl-coenzyme A synthetase 4 in phospholipid remodeling2019

    • Author(s)
      Kuwata, H., Hara, S.
    • Organizer
      60th International Conference on the Bioscience of Lipids (ICBL2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] メチル水銀による脂質代謝機構への影響2019

    • Author(s)
      依田恵美子、向田汐里、原俊太郎
    • Organizer
      第46回日本毒性学会学術年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 炎症反応における長鎖アシル CoA合成酵素4の役割2019

    • Author(s)
      桑田浩、小栗百葉、原俊太郎
    • Organizer
      第61回日本脂質生化学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 化学物質による炎症へのプロスタグランジン合成酵素の機能解析2019

    • Author(s)
      落合翔、吉田七虹、前田芽依、佐々木由香、横山知永子、原俊太郎
    • Organizer
      フォーラム2019: 衛生薬学・環境トキシコロジー
    • Related Report
      2019 Annual Research Report
  • [Presentation] 生体内における長鎖アシルCoA合成酵素4の役割2019

    • Author(s)
      桑田浩、落合翔、原俊太郎
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Regulation of inflammatory reactions by acyl-CoA synthetase ACSL42019

    • Author(s)
      Hara, S., Kuwata, H.
    • Organizer
      EMBO Workshop on Lipid Function in Health and Disease
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Participation of long-chain acyl-CoA synthetase ACSL4 in inflammatory reactions2019

    • Author(s)
      Hara, S., Kuwata, H.
    • Organizer
      16th International Conference on Bioactive Lipids in Cancer, Inflammation and Related Diseases
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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

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