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Elucidation of the relationship between cancer malignancy and RNA modification

Research Project

Project/Area Number 19K07688
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionTokyo University of Science (2021)
Osaka University (2019-2020)

Principal Investigator

Konno Masamitsu  東京理科大学, 研究推進機構生命医科学研究所, 助教 (80618207)

Co-Investigator(Kenkyū-buntansha) 石井 秀始  大阪大学, 医学系研究科, 特任教授(常勤) (10280736)
小関 準  名古屋大学, 医学系研究科, 准教授 (20616669)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords膵臓がん / エピトランスクリプトーム / RNAメチル化 / シークエンス
Outline of Research at the Start

我々はこれまでの研究でRNAのメチル化酵素の一つであるMETTL3の発現が膵がんの悪性化に繋がることを明らかにしている。すなわち膵がんの自然発がんマウスにMETTL3を過剰発現すると、がんの増殖が非常に早く、さらに肝臓などへの遠隔転移も引き起こすことを明らかにした。ヒトの臨床検体を用いた解析においてもMETTL3が高発現の膵がん患者は予後が悪く、マウスのデータと一致していることを確認している。我々はさらにMETTL3の発現レベルが予後に影響を与えるがん種はそのほかに胃がん、肺がんであることを確認している。そこで本研究ではRNAのメチル化がこれらのがん種において悪性化を促すメカニズムの解明を目的とする。

Outline of Final Research Achievements

pancreatic cancer's 5-year survival rate is about 7% and the time to survive from the time of diagnosis is 14 months. So pancreatic cancer is a very serious. Therefore, the development of novel anticancer agents based on the mechanism of pancreatic cancer malignant transformation is an urgent and pressing issue to improve treatment outcomes. In our previous studies, we have shown that the expression of METTL3, an RNA methyltransferase, leads to the malignant transformation of pancreatic cancer. So in this study, we aimed to develop inhibitors of the RNA methyltransferase METTL3. We tried to screening for METTL3 inhibitors and evaluated their antitumor activity in mice. As a result, we succeeded in obtaining several lead compounds that inhibit METTL3.

Academic Significance and Societal Importance of the Research Achievements

METTL3の発言が高い膵臓がんマウスの腫瘍は増殖が非常に速く、転移も引き起こし、生存率が非常に悪いことが明らかとなった。さらに詳細なメカニズム解析を行ったところ、METTL3は特に免疫関連遺伝子のmRNAのメチル化を亢進しており、その結果PD1, PDL1を含む免疫関連タンパク質の発現量を増加させ、自己免疫からの攻撃を回避するシステムを獲得していることが明らかとなった。つまり本研究で獲得したMETTL3の阻害剤はPL1、PDL1、CTLA4 抗体に続く新たながん免疫製剤となる可能性を秘めている。

Report

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

    (22 results)

All 2022 2021 2020 2019

All Journal Article (14 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 14 results,  Open Access: 14 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Direct observation of DNA alterations induced by a DNA disruptor2022

    • Author(s)
      Ohshiro Takahito、Asai Ayumu、Konno Masamitsu、Ohkawa Mayuka、Komoto Yuki、Ofusa Ken、Ishii Hideshi、Taniguchi Masateru
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 6945-6945

    • DOI

      10.1038/s41598-022-10725-8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Single-molecule RNA sequencing for simultaneous detection of m6A and 5mC2021

    • Author(s)
      Ohshiro Takahito、Konno Masamitsu、Asai Ayumu、Komoto Yuki、Yamagata Akira、Doki Yuichiro、Eguchi Hidetoshi、Ofusa Ken、Taniguchi Masateru、Ishii Hideshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 19304-19304

    • DOI

      10.1038/s41598-021-98805-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Four-Dimensional Organoid System to Visualize Cancer Cell Vascular Invasion2020

    • Author(s)
      Yanagisawa Kiminori、Konno Masamitsu、Liu Hao、Irie Shinji、Mizushima Tsunekazu、Mori Masaki、Doki Yuichiro、Eguchi Hidetoshi、Matsusaki Michiya、Ishii Hideshi
    • Journal Title

      Biology

      Volume: 9 Issue: 11 Pages: 361-361

    • DOI

      10.3390/biology9110361

    • NAID

      120006952170

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hereditary pancreatitis model by blastocyst complementation in mouse2020

    • Author(s)
      Asai Ayumu、Konno Masamitsu、Kawamoto Koichi、Isotani Ayako、Mori Masaki、Eguchi Hidetoshi、Doki Yuichiro、Arai Takahiro、Ishii Hideshi
    • Journal Title

      Oncotarget

      Volume: 11 Issue: 22 Pages: 2061-2073

    • DOI

      10.18632/oncotarget.27595

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Convolutional Neural Network Can Recognize Drug Resistance of Single Cancer Cells2020

    • Author(s)
      Yanagisawa Kiminori、Toratani Masayasu、Asai Ayumu、Konno Masamitsu、Niioka Hirohiko、Mizushima Tsunekazu、Satoh Taroh、Miyake Jun、Ogawa Kazuhiko、Vecchione Andrea、Doki Yuichiro、Eguchi Hidetoshi、Ishii Hideshi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 9 Pages: 3166-3166

    • DOI

      10.3390/ijms21093166

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immuno-Surgical Management of Pancreatic Cancer with Analysis of Cancer Exosomes2020

    • Author(s)
      Takeda Yu、Kobayashi Shogo、Kitakaze Masatoshi、Yamada Daisaku、Akita Hirofumi、Asai Ayumu、Konno Masamitsu、Arai Takahiro、Kitagawa Toru、Ofusa Ken、Yabumoto Masami、Hirotsu Takaaki、Vecchione Andrea、Taniguchi Masateru、Doki Yuichiro、Eguchi Hidetoshi、Ishii Hideshi
    • Journal Title

      Cells

      Volume: 9 Issue: 7 Pages: 1645-1645

    • DOI

      10.3390/cells9071645

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Theoretical analyses and experimental validation of the effects caused by the fluorinated substituent modification of DNA2020

    • Author(s)
      Koseki Jun、Konno Masamitsu、Asai Ayumu、Horie Naohiro、Tsunekuni Kenta、Kawamoto Koichi、Obika Satoshi、Doki Yuichiro、Mori Masaki、Ishii Hideshi
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 1138-1138

    • DOI

      10.1038/s41598-020-57899-7

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-carbon metabolism for cancer diagnostic and therapeutic approaches2020

    • Author(s)
      Asai Ayumu、Konno Masamitsu、Koseki Jun、Taniguchi Masateru、Vecchione Andrea、Ishii Hideshi
    • Journal Title

      Cancer Letters

      Volume: 470 Pages: 141-148

    • DOI

      10.1016/j.canlet.2019.11.023

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CD44/CD133-Positive Colorectal Cancer Stem Cells are Sensitive to Trifluridine Exposure2019

    • Author(s)
      Tsunekuni Kenta、Konno Masamitsu、Haraguchi Naotsugu、Koseki Jun、Asai Ayumu、Matsuoka Kazuaki、Kobunai Takashi、Takechi Teiji、Doki Yuichiro、Mori Masaki、Ishii Hideshi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 14861-14861

    • DOI

      10.1038/s41598-019-50968-6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distinct methylation levels of mature microRNAs in gastrointestinal cancers2019

    • Author(s)
      Konno Masamitsu、Koseki Jun、Asai Ayumu、Yamagata Akira、Shimamura Teppei、Motooka Daisuke、Okuzaki Daisuke、Kawamoto Koichi、Mizushima Tsunekazu、Eguchi Hidetoshi、Takiguchi Shuji、Satoh Taroh、Mimori Koshi、Ochiya Takahiro、Doki Yuichiro、Ofusa Ken、Mori Masaki、Ishii Hideshi
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 3888-3888

    • DOI

      10.1038/s41467-019-11826-1

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Computational analyses for cancer biology based on exhaustive experimental backgrounds2019

    • Author(s)
      Koseki Jun、Konno Masamitsu、Ishii Hideshi
    • Journal Title

      Cancer Drug Resistance

      Volume: 2 Pages: 419-427

    • DOI

      10.20517/cdr.2019.33

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of C. elegans cancer screening test for the detection of pancreatic tumor in genetically engineered mice2019

    • Author(s)
      Ueda Yuji、Kawamoto Koichi、Konno Masamitsu、Noguchi Kozo、Kaifuchi Satoru、Satoh Taroh、Eguchi Hidetoshi、Doki Yuichiro、Hirotsu Takaaki、Mori Masaki、Ishii Hideshi
    • Journal Title

      Oncotarget

      Volume: 10 Issue: 52 Pages: 5412-5418

    • DOI

      10.18632/oncotarget.27124

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Hydrogen Peroxide Activatable Gemcitabine Prodrug for the Selective Treatment of Pancreatic Ductal Adenocarcinoma2019

    • Author(s)
      Matsushita Katsunori、Konno Masamitsu、Eguchi Hidetoshi、Koseki Jun、Satoh Taroh、Doki Yuichiro、Mori Masaki、Ishii Hideshi、Obika Satoshi
    • Journal Title

      ChemMedChem

      Volume: 14 Issue: 15 Pages: 1384-1391

    • DOI

      10.1002/cmdc.201900324

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significant Epitranscriptomes in Heterogeneous Cancer2019

    • Author(s)
      Konno Masamitsu、Taniguchi Masateru、Ishii Hideshi
    • Journal Title

      Cancer Science

      Volume: 110 Issue: 8 Pages: 2318-2327

    • DOI

      10.1111/cas.14095

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] RNA modificarion, a new biomarker for early stages of pancreatic cancer2021

    • Author(s)
      Masamitsu Konno
    • Organizer
      第80回日本癌学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] RNAメチル化は膵がんの悪性化と密接に関わる2020

    • Author(s)
      今野雅允
    • Organizer
      第93日本生化学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Epitranscriptome, a new biomarker for early stage pancreatic cancer.2020

    • Author(s)
      今野雅允
    • Organizer
      第79日本癌学会
    • Related Report
      2020 Research-status Report
  • [Presentation] RNA metabolism can be a novel new bio marker for malignant gastrointestinal cancer2019

    • Author(s)
      M. Konno, H. Ishii
    • Organizer
      Cell Symposia: Regulatory RNAs
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] RNA 塩基修飾を指標とした早期膵がんの新規バイオマーカー2019

    • Author(s)
      今野 雅允、小関 準、島村 徹平、浅井 歩、石井 秀始
    • Organizer
      第21回日本RNA学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] RNA 代謝ががんの悪性化を生み出す2019

    • Author(s)
      今野 雅允、小関 準、島村 徹平、浅井 歩、石井 秀始
    • Organizer
      第7回がんと代謝研究会in仙台
    • Related Report
      2019 Research-status Report
  • [Presentation] エピトランスクリプトーム ー消化器がんの新規バイオマーカーー2019

    • Author(s)
      今野 雅允、石井 秀始
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2019 Research-status Report
  • [Presentation] フッ素置換基を有した核酸分子が及ぼすDNA立体構造変化と内部相互作用変化に対 する理論解析2019

    • Author(s)
      小関 準、今野 雅允、浅井 歩、堀江 尚宏、常國 健太、小比賀 聡、石井 秀始
    • Organizer
      第42回日本分子生物学会年
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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