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Analyses of selective cytotoxicity of the anti-diabetic biguanide drug, Metformin, in solid tumor specific microenvironment

Research Project

Project/Area Number 18K11640
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 63020:Radiation influence-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2020-2021)
Kyoto University (2018-2019)

Principal Investigator

TANO Keizo  大阪公立大学, 大学院理学研究科, 客員研究員 (00183468)

Co-Investigator(Kenkyū-buntansha) 増永 慎一郎  大阪公立大学, 研究推進機構, 客員研究員 (80238914)
川西 優喜  大阪公立大学, 大学院理学研究科, 教授 (70332963)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsDNA損傷修復 / ビグアノイド薬剤 / 腫瘍細胞内微細環境 / DNAタンパククロスリンク損傷 / 染色体断裂 / 細胞内微細環境 / 細胞 / 微細環境
Outline of Final Research Achievements

Metformin is commonly used as a first-line drug for type 2 diabetes. Patients prescribed metformin are known to have a lower risk of cancer than those prescribed other drugs, highlighting its potential as a cancer preventive. According to this study, under hypoglycemia, which is specific to the tumor cell environment, Metformin induces specific DNA damage in tumor cells, leading to a lethal genetic lesion. This suggests that metformin may have specific lethal effects on cancer cells and provides fundamental information for understanding the cause and mechanism of lethal induction when applying metformin as an anticancer drug with fewer side effects.

Academic Significance and Societal Importance of the Research Achievements

既存の抗がん剤は正常細胞にも強く影響するため副作用がデメリットの一つである。Metforminは糖新生を抑制し血糖値を下げる作用から糖尿病治療薬として使用されており、一方、抗がん剤開発研究分野では、腫瘍細胞に特異的致死効果を与える研究が進んでいる。腫瘍組織は血管不良に伴う低グルコース(低血糖)や低酸素など特徴的な微細環境下にあり、それら環境要素は腫瘍の悪性化、また、放射線や化学療法の抵抗性獲得に関わっている。腫瘍組織環境下でのMetforminの作用機序と腫瘍細胞特異的致死効果を解明することは、新規抗がん剤や増感剤の開発、がん患者の負担軽減を目指す治療計画への知見として有益である。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (6 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] SPRTN and TDP1/TDP2 Independently Suppress 5-Aza-2′-deoxycytidine-Induced Genomic Instability in Human TK6 Cell Line2022

    • Author(s)
      Nakano Toshiaki,Moriwaki Takahito,Tsuda Masataka,Miyakawa Misa,Hanaichi Yuto,Sasanuma Hiroyuki,Hirota Kouji,Kawanishi Masanobu,Ide Hiroshi,Tano Keizo,Bessho Tadayoshi
    • Journal Title

      Chemical Research in Toxicology

      Volume: 35 Issue: 11 Pages: 2059-2067

    • DOI

      10.1021/acs.chemrestox.2c00213

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] PRDX1 is essential for the viability and maintenance of reactive oxygen species in chicken DT402021

    • Author(s)
      Moriwaki Takahito、Yoshimura Akari、Tamari Yuki、Sasanuma Hiroyuki、Takeda Shunichi、Seki Masayuki、Tano Keizo
    • Journal Title

      Genes and Environment

      Volume: 43 Issue: 1 Pages: 1-8

    • DOI

      10.1186/s41021-021-00211-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Participation of TDP1 in the repair of formaldehyde-induced DNA-protein cross-links in chicken DT40 cells2020

    • Author(s)
      Toshiaki Nakano, Mahmoud I. Shoulkamy, Masataka Tsuda, Hiroyuki Sasanuma, Kouji Hirota, Minoru Takata, Shin-ichiro Masunaga, Shunichi Takeda, Hiroshi Ide, Tadayoshi Bessho, Keizo Tano
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 6 Pages: 0234859-0234859

    • DOI

      10.1371/journal.pone.0234859

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An attempt to improve the therapeutic effect of boron neutron capture therapy using commonly employed 10B-carriers based on analytical studies on the correlation among quiescent tumor cell characteristics, tumor heterogeneity and cancer stemness2020

    • Author(s)
      Shin-ichiro Masunaga, Yu Sanada, Keizo Tano, Yoshinori Sakurai, Hiroki Tanaka, Takushi Takata, Minoru Suzuki, Koji Ono
    • Journal Title

      Journal of Radiation Research

      Volume: 61 Issue: 6 Pages: 876-885

    • DOI

      10.1093/jrr/rraa048

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of p53 status of tumor cells and combined treatment with mild hyperthermia, wortmannin or caffeine on recovery from radiation-induced damage2019

    • Author(s)
      Masunaga S, Tano K, Sanada Y, Suzuki M, Takahashi A, Ohnishi K and Ono K
    • Journal Title

      World J. Oncol.

      Volume: 10 Issue: 3 Pages: 132-141

    • DOI

      10.14740/wjon1203

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Usefulness of combination with both continuous administration of hypoxic cytotoxin and mild temperature hyperthermia in boron neutron capture therapy in terms of local tumor response and lung metastatic potential2019

    • Author(s)
      Masunaga S, Sakurai Y, Tanaka H, Takata T, Suzuki M, Sanada Y, Tano K, Maruhashi A and Ono K
    • Journal Title

      Int. J. Radiat. Biol.

      Volume: 95 Issue: 12 Pages: 1708-1717

    • DOI

      10.1080/09553002.2019.1666214

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of a change in reactor power on response of murine solid tumors in vivo, referring to impact on quiescent tumor cell population.2018

    • Author(s)
      Masunaga S, Sakurai Y, Tanaka H, Takata T, Suzuki M, Sanada Y, Tano K, Maruhashi A, Ono K.
    • Journal Title

      Int J Radiat Biol

      Volume: Dec 17 Issue: 5 Pages: 1-28

    • DOI

      10.1080/09553002.2019.1558300

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Disruption of Hif-1α enhances cytotoxic effects of metformin in murine squamous cell carcinoma.2018

    • Author(s)
      Sanada Y, Sasanuma H, Takeda S, Tano K, Masunaga S.
    • Journal Title

      Int J Radiat Biol

      Volume: 94 Issue: 1 Pages: 88-96

    • DOI

      10.1080/09553002.2018.1409443

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] azadCによって生じるDNMT1-DPC損傷の修復に関わるSPRTNとプロテオソーム依存的経路の解明2021

    • Author(s)
      中野敏彰、津田雅貴、森脇隆仁、笹沼博之、川西優喜、鹿園直哉、井出博、田野恵三
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] DNMT1-DNAクロスリンク損傷の修復に関わるSPRTNとプロテオソーム依存的経路の働き2021

    • Author(s)
      中野敏彰、津田雅貴、森脇隆仁、笹沼博之、川西優喜、赤松憲、井出博、田野恵三
    • Organizer
      日本環境変異原ゲノム学会第50回記念大会
    • Related Report
      2021 Research-status Report
  • [Presentation] DNAタンパク質クロスリンク損傷修復におけるSPRTNの関与2020

    • Author(s)
      中野敏彰, 笹沼博之, 津田雅貴, 廣田耕志, 赤松憲, 川西優喜, 武田俊一, 井出博, 田野恵三
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] SPRTNはazadCによって導入されたDPCの修復機構に関与している2020

    • Author(s)
      中野敏彰, 笹沼博之, 津田雅貴, 廣田耕志, 赤松憲, 川西優喜, 武田俊一, 井出博, 田野恵三
    • Organizer
      日本環境変異原学会第49回大会
    • Related Report
      2020 Research-status Report
  • [Presentation] How does TDP1 exert in DNA-protein cross- links repair mechanism?2019

    • Author(s)
      Toshiaki Nakano, Mahmoud Shoulkamy, Masataka Tsuda, Hiroyuki Sasanuma, Shin-ichiro Masunaga, Shunichi Takeda, Hiroshi Ide, Tadayoshi Bessho, Keizo Tano
    • Organizer
      ACEM/JEMS 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脊椎動物におけるDNA-タンパク質クロスリンク損傷修復へのTDP1, TDP2遺伝子産物の関与2018

    • Author(s)
      藤池春奈、Mahmoud Shoulkamy、Amir Salem、津田雅貴、笹沼博之、増永慎一郎、武田俊一、井出博、田野恵三
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Research-status Report
  • [Remarks] 研究室ホームページ

    • URL

      http://www.rri.kyoto-u.ac.jp/rb-rri/index.html

    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2025-01-30  

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