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RNA involvement in the process of chemotherapy-induced DNA replication stress

Research Project

Project/Area Number 18K19478
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 50:Oncology and related fields
Research InstitutionKyushu University

Principal Investigator

Kitao Hiroyuki  九州大学, 薬学研究院, 教授 (30368617)

Co-Investigator(Kenkyū-buntansha) 飯森 真人  九州大学, 薬学研究院, 准教授 (20546460)
沖 英次  九州大学, 大学病院, 講師 (70380392)
佐伯 浩司  群馬大学, 大学院医学系研究科, 教授 (80325448)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords複製ストレス / RNA転写中間体 / FancD2 / DNA複製ストレス / RNA転写複合体 / 抗がん剤 / ゲノム不安定性 / 抗腫瘍効果
Outline of Final Research Achievements

DNA replication stress is the trigger of genome instability, a hallmark of cancer. One critical endogenous cause of DNA replication stress is R-loop, an intermediate DNA-RNA hybrid structure during RNA transcription. We investigated the possible contribution of R-loop in the DNA replication stress induced by a chemotherapeutic drug, trifluridine (FTD). FancD2 was activated by FTD and closely associated with RNA polymerase II in the nucleus. Transcription inhibitors suppressed FTD-induced FancD2 activation and FancD2 deficiency caused severer FTD-induced DNA damage. FancD2 contributes to resolve R-loop during mild replication stress. Our data indicate that FancD2 plays an important role in the cellular response to FTD via resolving R-loops.

Academic Significance and Societal Importance of the Research Achievements

抗がん剤の作用メカニズムは複雑で、それぞれの理解は重要である。申請者の研究成果は、DNAに作用する抗がん剤の作用においてRNAの関与を裏付けるものであり、その意義は大きい。FTD/TPIは進行再発直腸結腸癌に対する治療薬として2014年に本邦で認可を受け、現在では、米欧、アジアでも広く治療に用いられている。近年、胃癌に対する適応も取得し、消化器癌に対する治療薬としての重要度も増している。申請者の研究成果は、FTD/TPIの抗腫瘍効果を担うFTDの作用メカニズムを理解する上でも重要な知見である。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (5 results) Remarks (1 results)

  • [Journal Article] Detection of trifluridine in tumors of patients with metastatic colorectal cancer treated with trifluridine/tipiracil.2020

    • Author(s)
      Fujimoto Yoshiaki, Nakanishi Ryota, Nukatsuka Mamoru, Matsuoka Kazuaki, Ando Koji, Wakasa Takeshi, Kitao Hiroyuki, Oki Eiji, Maehara Yoshihiko, Mori Masaki
    • Journal Title

      Cancer Chemotherapy and Pharmacology

      Volume: - Issue: 6 Pages: 1029-1038

    • DOI

      10.1007/s00280-020-04072-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA replication stress induced by trifluridine determines tumor cell fate according to p53 status2020

    • Author(s)
      Kataoka Yuki、Iimori Makoto、Fujisawa Ryo、Morikawa-Ichinose Tomomi、Niimi Shinichiro、Wakasa Takeshi、Saeki Hiroshi、Oki Eiji、Miura Daisuke、Tsurimoto Toshiki、Maehara Yoshihiko、Kitao Hiroyuki
    • Journal Title

      Molecular Cancer Research

      Volume: - Issue: 9 Pages: 1354-1366

    • DOI

      10.1158/1541-7786.mcr-19-1051

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cytotoxicity of trifluridine correlates with the thymidine kinase 1 expression level2019

    • Author(s)
      Kataoka Yuki、Iimori Makoto、Niimi Shinichiro、Tsukihara Hiroshi、Wakasa Takeshi、Saeki Hiroshi、Oki Eiji、Maehara Yoshihiko、Kitao Hiroyuki
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 7964-7964

    • DOI

      10.1038/s41598-019-44399-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MDC1 methylation mediated by lysine methyltransferases EHMT1 and EHMT2 regulates active ATM accumulation flanking DNA damage sites2018

    • Author(s)
      Watanabe Sugiko、Iimori Makoto、Chan David Virya、Hara Eiji、Kitao Hiroyuki、Maehara Yoshihiko
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 10888-10888

    • DOI

      10.1038/s41598-018-29239-3

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thymidine Kinase 1 Loss Confers Trifluridine Resistance without Affecting 5-Fluorouracil Metabolism and Cytotoxicity2018

    • Author(s)
      Edahiro Keitaro、Iimori Makoto、Kobunai Takashi、Morikawa-Ichinose Tomomi、Miura Daisuke、Kataoka Yuki、Niimi Shinichiro、Wakasa Takeshi、Saeki Hiroshi、Oki Eiji、Kitao Hiroyuki、Maehara Yoshihiko
    • Journal Title

      Molecular Cancer Research

      Volume: 16 Issue: 10 Pages: 1483-1490

    • DOI

      10.1158/1541-7786.mcr-17-0686

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A minimal threshold of FANCJ helicase activity is required for its response to replication stress or double-strand break repair2018

    • Author(s)
      Bharti Sanjay Kumar、Sommers Joshua A、Awate Sanket、Bellani Marina A、Khan Irfan、Bradley Lynda、King Graeme A、Seol Yeonee、Vidhyasagar Venkatasubramanian、Wu Yuliang、Abe Takuye、Kobayashi Koji、Shin-ya Kazuo、Kitao Hiroyuki、Wold Marc S、Branzei Dana、Neuman Keir C、Brosh Robert M
    • Journal Title

      Nucleic Acids Research

      Volume: 46 Issue: 12 Pages: 6238-6256

    • DOI

      10.1093/nar/gky403

    • Related Report
      2018 Research-status Report
  • [Journal Article] Epithelial Paradox: Clinical Significance of Coexpression of E-cadherin and Vimentin With?Regard to Invasion and Metastasis of Breast?Cancer2018

    • Author(s)
      Yamashita Nami、Tokunaga Eriko、Iimori Makoto、Inoue Yuka、Tanaka Kimihiro、Kitao Hiroyuki、Saeki Hiroshi、Oki Eiji、Maehara Yoshihiko
    • Journal Title

      Clinical Breast Cancer

      Volume: 印刷中 Issue: 5 Pages: e1003-e1009

    • DOI

      10.1016/j.clbc.2018.02.002

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] トリフルリジン誘導性細胞老化とDNA複製ストレスとの関連2019

    • Author(s)
      北尾洋之、片岡裕貴、飯森真人、若狹武司、藤澤遼、釣本敏樹、松岡和明、沖英次、佐伯浩司、前原喜彦、森正樹
    • Organizer
      第23回日本がん分子標的治療学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Tracing trifluridine in the DNA using anti-BrdU antibodies2019

    • Author(s)
      北尾洋之、藤本禎明、中西良太、糠塚守、松岡和明、武知貞士、若狹武司、飯森真人、森正樹
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Cell fate decision according to p53 status in response to nucleoside analog-induced DNA replication stress2018

    • Author(s)
      Hiroyuki Kitao
    • Organizer
      Gordon Research Conference-Mutagenesis
    • Related Report
      2018 Research-status Report
  • [Presentation] The mechanism of tumor cell fate decision by an antitumor nucleoside analogue, trifluridine2018

    • Author(s)
      Hiroyuki Kitao
    • Organizer
      第77回日本癌学会学術総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Cell fate decision according to p53 status in response to nucleoside analog-induced DNA replication stress2018

    • Author(s)
      Hiroyuki Kitao
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Research-status Report
  • [Remarks] 九州大学 研究者情報

    • URL

      http://hyoka.ofc.kyushu-u.ac.jp/search/details/K003932/index.html

    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-07-25   Modified: 2021-02-19  

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