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Development of cancer therapies to improve resistance and reduce side effects

Research Project

Project/Area Number 18K09788
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionKobe University

Principal Investigator

Hasegawa Takumi  神戸大学, 医学研究科, 講師 (50546497)

Co-Investigator(Kenkyū-buntansha) 明石 昌也  神戸大学, 医学研究科, 教授 (40597168)
武田 大介  神戸大学, 医学部附属病院, 助教 (80755637)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords炭酸ガス / 口腔癌 / 放射線 / 治療抵抗性 / 放射線治療 / 低酸素環境 / 放射線抵抗性 / 副作用
Outline of Final Research Achievements

In the present study, the combination of transcutaneous CO2 and radiation therapy significantly inhibited tumor growth compared with other treatments using a local carbon dioxide gas administration method. In the combination group, anti-human ROS modulator 1 and caspase8 were increased by radiation therapy (RT), and mitochondrial apoptosis (PARP, caspase 3, 9) were increased by transcutaneous CO2 therapy. These results indicated that transcutaneous CO2 could potentially improve the antitumor effect of RT by decreasing the intratumoral hypoxia and increasing the mitochondrial apoptosis. Our findings indicated that CO2 therapy may be a novel adjuvant therapy in combination with RT for OSCC.

Academic Significance and Societal Importance of the Research Achievements

治療抵抗性を示す原因として腫瘍内の低酸素環境が重要であるが、腫瘍内低酸素環境を有効かつ効率的に改善する方法は確立していない。本研究では、局所的炭酸ガスによる効率的で、低リスクな治療法の確立を目指すもので学術的意義が示された。また、低酸素環境を改善することにより治療抵抗性が改善され、既存治療である放射線治療との併用効果を確認できた。今後、臨床応用として、腫瘍縮小効果の増大とともに、副作用軽減効果が見込める低コストな治療法が提供できる可能性があり、社会的意義があると考えられる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2021 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (2 results)

  • [Journal Article] Transcutaneous Carbon Dioxide Decreases Immunosuppressive Factors in Squamous Cell Carcinoma In Vivo2021

    • Author(s)
      Yatagai Nanae、Hasegawa Takumi、Amano Rika、Saito Izumi、Arimoto Satomi、Takeda Daisuke、Kakei Yasumasa、Akashi Masaya
    • Journal Title

      BioMed Research International

      Volume: 5568428 Issue: 1 Pages: 1-9

    • DOI

      10.1155/2021/5568428

    • NAID

      120007125723

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Local Application of Transcutaneous Carbon Dioxide Paste Decreases Inflammation and Accelerates Wound Healing2021

    • Author(s)
      Amano-Iga Rika、Hasegawa Takumi、Takeda Daisuke、Murakami Aki、Yatagai Nanae、Saito Izumi、Arimoto Satomi、Kakei Yasumasa、Sakakibara Akiko、Akashi Masaya
    • Journal Title

      Cureus

      Volume: 13

    • DOI

      10.7759/cureus.19518

    • NAID

      120007179182

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 炭酸ガスを使用した効率的な低酸素環境改善による口腔癌の新規治療法の開発と治療抵抗性の改善効果2019

    • Author(s)
      長谷川巧実、武田大介、斉藤 泉、岩田英治、筧康正、榊原晶子、明石昌也、南川勉、古森孝英
    • Organizer
      第37回日本口腔腫瘍学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 効率的な低酸素環境改善による口腔癌の新規治療法の開発と治療抵抗性の改善効果2018

    • Author(s)
      長谷川巧実、武田大介、斉藤泉、岩田英治、筧 康正、榊原晶子、明石昌也、南川勉、古森孝英
    • Organizer
      第63回日本口腔外科学会総会・学術大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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