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Innovative treatment of soft tissue tumors by air plasma-activated medium

Research Project

Project/Area Number 21K09217
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionPlasma ChemiBio Laboratory

Principal Investigator

Suzuki Yoshihiro  一般社団法人プラズマ化学生物学研究所, 研究部, 代表理事 (80206549)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsミトコンドリア / 活性酸素 / 一酸化窒素 / オゾン / 骨軟部腫瘍 / 低温大気圧プラズマ照射液 / 低温大気圧プラズマ / 骨肉腫 / 鉄 / フェロトーシス / アポトーシス抵抗性 / mitochondria / ミトコンドリアダイナミクス / 空気プラズマ照射液 / 鉄イオン
Outline of Research at the Start

集学的治療法の進歩によって悪性骨軟部腫瘍の予後は改善されてきたが、治療抵抗性のために過去十年間の治療成績は向上していない。この抵抗性にはアポトーシスに対する耐性が関与するので、これらの腫瘍が抵抗性を持たない他の細胞死を誘発する薬剤・方策の発見は画期的な治療法に繋がることが期待できる。われわれは、空気プラズマを用いた照射液を作出し、これが、ヘリウムプラズマ照射液に抵抗性な悪性骨軟部腫瘍にも著効を示し、鉄ストレスを介する細胞死を誘発することを発見した。本研究では、この細胞死の機構を明らかにするとともにマウス腫瘍移植モデルにおける有効性と安全性を検証し、悪性骨軟部腫瘍治療法の創出を目指す。

Outline of Final Research Achievements

We discovered that a non-thermal atmospheric air plasma-treated solution strongly damages bone and soft tissue tumor cells, such as osteosarcoma, while causing minimal damage to normal cells. The underlying mechanism is that it promotes the production of lipid peroxides through a reaction between iron contained in the mitochondria of tumor cells and reactive oxygen species, causing oxidative stress in the mitochondria and changing their properties to an oxidative form that is destructive to cells. The oxidative mitochondria then move closer to the nucleus and become a cause of nuclear damage.
Our findings revealed that this type of mitochondrial change occurs only in tumor cells but not in normal cells, and this is one of the mechanisms behind the tumor cell-specific damage by air plasma-treated solution.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、空気プラズマは骨軟部腫瘍細胞に鉄依存性経路による細胞傷害を誘導し、ミトコンドリア内酸化ストレスとそれによるミトコンドリアの酸化型への転換と核への接近が重要であることやこの誘導が腫瘍選択的に起こることを初めて明らかにしたことである。この成果は、空気プラズマ照射液による腫瘍標的型治療の分子基盤を提供し、ミトコンドリア内酸化ストレスが腫瘍細胞選択的な傷害のための有力な標的となることを示して副作用の少ないがん治療につながる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 3 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Nitric oxide-dependent cell death in glioblastoma and squamous cell carcinoma via prodeath mitochondrial clustering2024

    • Author(s)
      Ochiai Yushi、Suzuki-Karasaki Manami、Ando Takashi、Suzuki-Karasaki Miki、Nakayama Hideki、Suzuki-Karasaki Yoshihiro
    • Journal Title

      European Journal of Cell Biology

      Volume: 103 Issue: 2 Pages: 151422-151422

    • DOI

      10.1016/j.ejcb.2024.151422

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ozone mediates the anticancer effect of air plasma by triggering oxidative cell death caused by H2O2 and iron2023

    • Author(s)
      Suzuki-Karasaki Manami、Ochiai Yushi、Innami Shizuka、Okajima Hiroshi、Suzuki-Karasaki Miki、Nakayama Hideki、Suzuki-Karasaki Yoshihiro
    • Journal Title

      European Journal of Cell Biology

      Volume: 102 Issue: 4 Pages: 151346-151346

    • DOI

      10.1016/j.ejcb.2023.151346

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Air Plasma-Activated Medium Evokes a Death-Associated Perinuclear Mitochondrial Clustering2022

    • Author(s)
      Manami Suzuki-Karasaki, Takashi Ando, Yushi Ochiai, Kenta Kawahara, Miki Suzuki-Karasaki, Hideki Nakayama, Yoshihiro Suzuki-Karasaki.
    • Journal Title

      International Journal of Molecular Science

      Volume: 23 Issue: 3 Pages: 1124-1124

    • DOI

      10.3390/ijms23031124

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Combined Anticancer Effect of Plasma-Activated Infusion and Salinomycin by Targeting Autophagy and Mitochondrial Morphology2021

    • Author(s)
      Ando Takashi、Suzuki-Karasaki Manami、Suzuki-Karasaki Miki、Ichikawa Jiro、Ochiai Toyoko、Yoshida Yukihiro、Haro Hirotaka、Suzuki-Karasaki Yoshihiro
    • Journal Title

      Frontiers in Oncology

      Volume: 11 Pages: 2041-2041

    • DOI

      10.3389/fonc.2021.593127

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Changes in mitochondrial morphology and positioning in cancer cell death caused by mitochondria oxidative stress2023

    • Author(s)
      鈴木良弘、鈴木真奈美
    • Organizer
      26th International Symposium on Molecular Medicine
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ozone exhibits antitumor activity by triggering mitochondria targeted oxidative cell death2023

    • Author(s)
      鈴木真奈美、落合祐之、印南静加、岡嶋洋、鈴木美喜、中山秀樹、鈴木良弘
    • Organizer
      26th International Symposium on Molecular Medicine
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Aqueous ozone exhibits tumor-targeting anticancer activity via death-associated perinuclear mitochondrial assembly2023

    • Author(s)
      鈴木真奈美、落合祐之、印南静加、岡嶋洋、鈴木美喜、中山秀樹、鈴木良弘
    • Organizer
      14th world congress on Targeting Mitochondria
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Glioblastoma cell death induced by cold atmospheric plasma though an iron-dependent pathway2023

    • Author(s)
      落合祐之、鈴木真奈美、鈴木美喜、鈴木良弘
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 空気プラズマによるミトコンドリアを標的とした口腔癌治療の基盤研究2023

    • Author(s)
      中山秀樹、鈴木真奈美、川原健太、篠原光祐、平山真弓、鈴木良弘
    • Organizer
      第68回日本口腔外科学総会・学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Oral cancer cell death caused by air plasma-activated medium via mitochondrial repositioning2022

    • Author(s)
      Manami Suzuki-Karasaki, Kenta Kawahara, Miki Suzuki-Karasaki, Hideki Nakayama, Yoshihiro Suzuki-Karasaki
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] プラズマ照射液による選択的ミトコンドリアポジショニング異常の誘発2022

    • Author(s)
      鈴木真奈美、落合祐之、川原健太、中山秀樹、鈴木良弘
    • Organizer
      第76回日本口腔外科学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Air plasma-activated medium injures malignant glioma cell lines by inducing a ferroptosis-like cell death2022

    • Author(s)
      Yushi Ochiai, Manami Suzuki-Karasaki, Miki Suzuki-Karasaki, Atsuo Yoshino, Yoshihiro Suzuki-Karasaki
    • Organizer
      第40回日本脳腫瘍学会学術集会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] オゾン含有水溶液組成物2021

    • Inventor(s)
      鈴木良弘
    • Industrial Property Rights Holder
      鈴木良弘
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas

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Published: 2021-04-28   Modified: 2025-01-30  

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