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Development of minimally invasive treatment in head and neck cancer focused on PI3K/Akt/mTOR pathway

Research Project

Project/Area Number 21K09585
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionUniversity of the Ryukyus

Principal Investigator

Suzuki Mikio  琉球大学, 医学(系)研究科(研究院), 教授 (00226557)

Co-Investigator(Kenkyū-buntansha) 池上 太郎  琉球大学, 医学(系)研究科(研究院), 助教 (00754409)
真栄田 裕行  琉球大学, 医学(系)研究科(研究院), 准教授 (40264501)
平川 仁  琉球大学, 病院, 講師 (50437993)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordshead and neck cancer / mTOR inhibitor / Torin / PLD inhibitor / mTOR阻害薬 / 頭頸部癌 / ヒト乳頭腫ウイルス / エベロリムス / テムシロリムス / 薬剤感受性 / 増殖抑制 / PI3K/Akt/mTOR / PI3K/Akt/mTOR経路阻害 / ラパログ / PLD阻害 / 新規低侵襲治療
Outline of Research at the Start

頭頸部癌治療には生命予後だけでなく、治療後のQuality of Survivalが重要である。増加が著しいヒト乳頭腫ウイルス関連癌では世界中で治療強度を下げながら治療効果を保つ取り組みがおこなわれている。ただ、現時点で確立された方法はなく、低侵襲治療開発の継続が必要である。頭頸部癌ではPI3K/Akt/mTOR経路活性化が腫瘍増殖に深く関連していることに着目し、効果的なPI3K/Akt/mTOR経路阻害プロトコールを作成し,低侵襲で安全性の高い新規治療法開発をめざす。

Outline of Final Research Achievements

For the development of less invasive treatments for head and neck cancer, an analysis focusing on the PI3K/Akt/mTOR pathway was conducted. Using rapalogs (mTOR inhibitors) temsirolimus and everolimus, which are clinically applied in other cancers, along with Torin-1, 2, and PLD inhibitors, the effects of each drug alone and in combination with rapalogs were analyzed. All drugs showed antitumor effects at high concentrations. However, when used at or below clinical doses, the antitumor effects diminished. Examination of various combinations revealed that the combination of everolimus and Torin-1 demonstrated antitumor effects at low concentrations. In vivo analysis using immunodeficient mice confirmed the antitumor effects of this low-concentration combination. This study contributes to the development of less invasive treatments with fewer side effects.

Academic Significance and Societal Importance of the Research Achievements

頭頸部は多くの感覚器を含んでおり、呼吸、嚥下、発声、容貌などの関連から、頭頸部癌治療には生命予後だけでなく、治療後のQuality of Survivalが重要である。頭頸部癌ではPI3K/Akt/mTOR経路活性化が腫瘍増殖に深く関連している。本研究ではラパログ(mTOR阻害薬)と別の作用点を持つmTOR阻害薬Torin-1、 2に着目し、ラパログ、PLD阻害薬のin vitro, in vivoの効果を解析した。本結果から、ラパログとTorinを組み合わせることにより、それぞれ単独で用いるよりも相乗効果を示すことが分かった。本成果は、より低侵襲で副作用の少ない治療へ結びつくものである。

Report

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

    (11 results)

All 2023 2022 Other

All Journal Article (10 results) (of which Peer Reviewed: 8 results,  Open Access: 4 results) Remarks (1 results)

  • [Journal Article] 特集 高齢者の疑問にどう答えるか 口腔・咽頭・食道領域 のどに乳頭腫があるといわれましたが,何が原因ですか?2023

    • Author(s)
      鈴木 幹男、金城 秀俊、平川 仁
    • Journal Title

      JOHNS

      Volume: 39 Issue: 9 Pages: 1073-1076

    • DOI

      10.24479/ohns.0000000747

    • ISSN
      0910-6820
    • Year and Date
      2023-09-01
    • Related Report
      2023 Annual Research Report
  • [Journal Article] 原著 一過性反回神経麻痺の原因が副甲状腺腺腫であったと推察された1例2023

    • Author(s)
      又吉 博紀、島袋 拓也、赤澤 幸則、真栄田 裕行、鈴木 幹男
    • Journal Title

      耳鼻咽喉科・頭頸部外科

      Volume: 95 Issue: 8 Pages: 661-666

    • DOI

      10.11477/mf.1411203444

    • ISSN
      0914-3491, 1882-1316
    • Year and Date
      2023-07-20
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] p16 Overexpression in Sinonasal Squamous Cell Carcinoma: Association with Human Papillomavirus and Prediction of Survival Outcomes2023

    • Author(s)
      Hirakawa Hitoshi、Ikegami Taro、Touyama Masatomo、Ooshiro Yurika、Higa Tomoyo、Higa Teruyuki、Agena Shinya、Kinjyo Hidetoshi、Kondo Shunsuke、Kise Norimoto、Tanaka Katsunori、Maeda Hiroyuki、Tamaki Tomoko、Wada Naoki、Suzuki Mikio
    • Journal Title

      Journal of Clinical Medicine

      Volume: 12 Issue: 21 Pages: 6861-6861

    • DOI

      10.3390/jcm12216861

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biomarkers for Predicting Anti-Programmed Cell Death-1 Antibody Treatment Effects in Head and Neck Cancer2023

    • Author(s)
      Tanaka Katsunori、Hirakawa Hitoshi、Suzuki Mikio、Higa Teruyuki、Agena Shinya、Hasegawa Narumi、Kawakami Junko、Toyama Masatomo、Higa Tomoyo、Kinjyo Hidetoshi、Kise Norimoto、Kondo Shunsuke、Maeda Hiroyuki、Ikegami Taro
    • Journal Title

      Current Oncology

      Volume: 30 Issue: 6 Pages: 5409-5424

    • DOI

      10.3390/curroncol30060410

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Human Papillomavirus Infection and EGFR Exon 20 Insertions in Sinonasal Inverted Papilloma and Squamous Cell Carcinoma2023

    • Author(s)
      Hirakawa Hitoshi、Ikegami Taro、Kise Norimoto、Kinjyo Hidetoshi、Kondo Shunsuke、Agena Shinya、Hasegawa Narumi、Kawakami Junko、Maeda Hiroyuki、Suzuki Mikio
    • Journal Title

      Journal of Personalized Medicine

      Volume: 13 Issue: 4 Pages: 657-657

    • DOI

      10.3390/jpm13040657

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between human papillomavirus particle production and the severity of recurrent respiratory papillomatosis2023

    • Author(s)
      Yamada Satoshi、Itoh Toshiya、Ikegami Taro、Imai Atsushi、Mochizuki Daiki、Nakanishi Hiroshi、Ishikawa Ryuji、Kita Junya、Nakamura Yuki、Takizawa Yoshinori、Okamura Jun、Noda Yoshihiro、Iwashita Toshihide、Hariyama Takahiko、Suzuki Mikio、Misawa Kiyoshi、Kawasaki Hideya
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 5514-5514

    • DOI

      10.1038/s41598-023-32486-8

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Nivolumab for the Head and Neck Carcinoma Patients2022

    • Author(s)
      Tanaka Katsunori、Maeda Hiroyuki、Kinjo Hidetoshi、Agena Shinya、Hirakawa Hitoshi、Suzuki Mikio
    • Journal Title

      Practica Oto-Rhino-Laryngologica

      Volume: 115 Pages: 875-881

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 鼻科学の進歩 : 鼻副鼻腔腫瘍手術の進歩2022

    • Author(s)
      鈴木 幹男
    • Journal Title

      Nippon Jibiinkoka Tokeibugeka Gakkai Kaiho(Tokyo)

      Volume: 125 Pages: 1253-1259

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 特集 ウイルス感染症に強くなる!-予防・診断・治療のポイント 《各論》 ヒト乳頭腫ウイルスと関連腫瘍2022

    • Author(s)
      鈴木 幹男、平川 仁
    • Journal Title

      耳鼻咽喉科・頭頸部外科

      Volume: 94 Pages: 655-659

    • Related Report
      2022 Research-status Report
  • [Journal Article] 原著 当科で経験した孤立性線維性腫瘍3例の検討2022

    • Author(s)
      比嘉 朋代、真栄田 裕行、鈴木 幹男
    • Journal Title

      耳鼻咽喉科・頭頸部外科

      Volume: 94 Pages: 99-103

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Remarks]

    • URL

      https://ent-ryukyu.jp/

    • Related Report
      2022 Research-status Report

URL: 

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

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