• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of novel cancer therapy against ROS produced by unhealthy mitochondria in cancer cells

Research Project

Project/Area Number 20K08954
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionGifu University

Principal Investigator

Futamura Manabu  岐阜大学, 大学院医学系研究科, 准教授 (10415515)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsMieap / p53 / ミトコンドリア / がん代謝 / Caspase / in silico search / Tumor suppressor / Warburg効果 / ROS / 乳癌・消化器癌 / Mitochondria quality / Breast cancer
Outline of Research at the Start

がん細胞のミトコンドリアはATP産性能力が低下し活性酸素を多量に発生します。Mieapは、こうした不良ミトコンドリアを排除・修復しATP産性能を改善し活性酸素発生も抑止します。本研究では、がん細胞の不良ミトコンドリアに由来する活性酸素を標的とした、革新的ながん治療法の開発を目的として以下の研究計画を立てました。(1)Mieap遺伝子を導入したがん細胞の中でおこる代謝産物や遺伝子発現の変化を調べ、抗ROS療法に関与する分子を同定し治療法開発につなげます。(2)がんミトコンドリアの損傷程度を指標にして、がん悪性度を診断するための新たな評価方法を確立することを目指した研究を行います。

Outline of Final Research Achievements

Mieap, a downstream gene of p53, plays an important role in mitochondrial quality control by eliminating/repairing unhealthy cancer mitochondria which produce less ATP and lots of reactive oxygen species (ROS). We previously reported the role of Mieap in colorectal and breast cancer. Mieap-NIX/BNIP3-Mieap-axis was impaired in these cancers. Overexpression of Mieap induced caspase-dependent apoptosis in these cells. Here we found Mieap was paired in both gastric and esophageal cancers. High rates of p53 mutation and/or methylation of BNIP3 promoter were frequent. Furthermore, to investigate the clinical significance of Mieap in breast cancer, we performed in-silico search using TCGA and METABRIC data base. Interestingly, we found loss of Mieap expression was significantly associated with clinical stage and survival by both cohorts. These results indicates that Mieap is a strong candidate of tumor suppressor in solid cancers such as breast and gastrointestinal cancers.

Academic Significance and Societal Importance of the Research Achievements

私たちの研究はがん抑制遺伝子p53の研究に始まり、がんのミトコンドリア、いわゆるがん代謝の研究へとシフトしています。遺伝子の異常はタンパク質の異常、ひいては細胞の機能異常につながっていきます。がんにおいて、遺伝子異常のみならず代謝の異常が、がんの性質や悪性度を決めているといえます。Mieapの機能はミトコンドリアの品質管理をすることで、細胞の悪性化を阻止していますが、この機能がなくなると悪性度が増し、患者さんの生存率にまで影響しているという知見が得られました。こうした重要な因子をコントロールすることが、これからのがん征圧、がん治療の道を開くことになるでしょう。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Mieap, a p53-Downstream Gene, Is Associated with Suppression of Breast Cancer Cell Proliferation and Better Survival2021

    • Author(s)
      Manabu Futamura, Yoshihisa Tokumaru, Kazuaki Takabe, Hirofumi Arakawa, Junichi Mase, Yoshimi Asano, Ryutaro Mori, Akira Nakakami, Kazuhiro Yoshida
    • Journal Title

      American Journal of Cancer Research

      Volume: 11 Pages: 6060-6073

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] p53/Mieap-regulated mitochondrial quality control plays an important role as a tumor suppressor in gastric and esophageal cancers2020

    • Author(s)
      Sano Hitoya、Futamura Manabu、Gaowa Siqin、Kamino Hiroki、Nakamura Yasuyuki、Yamaguchi Kazuya、Tanaka Yoshihiro、Yasufuku Itaru、Nakakami Akira、Arakawa Hirofumi、Yoshida Kazuhiro
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 529 Issue: 3 Pages: 582-589

    • DOI

      10.1016/j.bbrc.2020.05.168

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] MIEAP functions as a tumor suppressor by cooperating with PTB12022

    • Author(s)
      Manabu Futamura, Ryutaro Mori, Yoshimi Niwa, Yoshihisa Tokumaru
    • Organizer
      第81回日本癌学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] P53下流遺伝子Mieapは乳癌予後と関係している2021

    • Author(s)
      二村 学
    • Organizer
      第80回日本癌学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mieap, a p53-inducible gene, is associated with breast cancer prognosis.2021

    • Author(s)
      二村 学
    • Organizer
      第59回日本癌治療学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mieap, a p53-downstream gene, is associated with suppression of breast cancer cell proliferation and better survival2021

    • Author(s)
      Manabu Futamura
    • Organizer
      San Antonio Breast Cancer Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Potential role of p53/Mieap-regulated mitochondrial quality control as a tumor suppressor in gastric, esophageal and breast cancers2020

    • Author(s)
      Manabu Futamura
    • Organizer
      AACR 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] p53/Mieap-regulated mitochondrial quality control plays an important role as a tumor suppressor in upper GI cancers2020

    • Author(s)
      Manabu Futamura
    • Organizer
      第79回日本癌学会
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi