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Analysis of age-related genetic changes in non-tumour tissues - Investigating links to mechanisms of cancer-associated fibroblast development

Research Project

Project/Area Number 21K07133
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 Medical University

Principal Investigator

Umezu Tomohiro  東京医科大学, 医学部, 講師 (40385547)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsがん間質 / cell free DNA / mutational signature / 加齢性変異 / 体細胞変異 / 加齢性変化 / エクソーム解析 / 前がん病変
Outline of Research at the Start

本研究では、「加齢に伴う遺伝的変化が(上皮系のいわゆる「癌」のタネになる細胞種だけでなく)間質系の細胞にも生じているのではないか」、「加齢性の遺伝的変化の生じた間質細胞が、一見正常に見える前がん病変の微小環境を形成しているのではないか」との着想から、臨床サンプルを用いた全エクソーム解析と培養モデル系によるメカニズム解析によって、これまで一定の見解を示すことのできていなかったがん関連間質細胞の遺伝的変化について明確な解答を導き出すことを目的とする。そして、がん関連間質細胞の発生機序の解明とそれらを標的とした新規治療法の開発へと繋げていく。

Outline of Final Research Achievements

Somatic mutations were extracted from cell free DNA (cfDNA) with the aim of analysing the whole exome between non-tumour and tumour areas using clinical samples and detecting age-related genetic changes in the individual as well as in the cancer stroma. As a result, somatic mutations including VUS were detected not only in cfDNA from cancer patients but also in cfDNA from healthy individuals. In addition, the presence of a mutational signature specific to cfDNA from healthy individuals was confirmed.

Academic Significance and Societal Importance of the Research Achievements

本研究の最大の成果として、非腫瘍組織における加齢に伴って蓄積する遺伝的変化(ゲノムの傷)と、CAFを含むがん微小環境が誘導する発がんとの関与が示唆された。これらの加齢性の体細胞変異を標的とした発がんの超早期診断の開発として、非侵襲性の高いLiquid biospyとしてのcell free DNAから検出できる可能性が示された。今後はがん間質細胞を標的とした新規治療法の開発へと繋げていく。

Report

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

    (22 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (15 results)

  • [Journal Article] Plasma extracellular vesicle microRNAs reflecting the therapeutic effect of the CBP/β-catenin inhibitor PRI-724 in patients with liver cirrhosis.2024

    • Author(s)
      Yoshida M, Matsuzaki J, Fujita K, Kimura M, Umezu T, Tokuda N, Yamaguchi T, Kuroda M, Ochiya T, Saito Y, Kimura K.
    • Journal Title

      Sci Rep.

      Volume: 14(1) Issue: 1 Pages: 6266-6266

    • DOI

      10.1038/s41598-024-56942-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] miR-146a-5p and miR-191-5p as novel diagnostic marker candidates for ovarian clear cell carcinoma.2023

    • Author(s)
      Takamizawa S, Kojima J, Umezu T, Kuroda M, Hayashi S, Maruta T, Okamoto A, Nishi H.
    • Journal Title

      Mol Clin Oncol.

      Volume: 20(2) Issue: 2 Pages: 14-14

    • DOI

      10.3892/mco.2023.2712

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of circulating <scp>miRNAs</scp> in the treatment of primary liver tumors2023

    • Author(s)
      Umezu Tomohiro、Tanaka Shogo、Kubo Shoji、Enomoto Masaru、Tamori Akihiro、Ochiya Takahiro、Taguchi Y.‐H.、Kuroda Masahiko、Murakami Yoshiki
    • Journal Title

      Cancer Reports

      Volume: 7 Issue: 2 Pages: 1-9

    • DOI

      10.1002/cnr2.1964

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of COVID-19 infection on the gastrointestinal tract considering preventive methods during endoscopic procedures.2023

    • Author(s)
      Naito S, Nakamura I, Umezu T, Hata A, Madarame A, Uchida K, Koyama Y, Morise T, Yamaguchi H, Kono S, Sugimoto M, Kawai T, Harada Y, Kuroda M, Fukuzawa M, Itoi T.
    • Journal Title

      DEN Open.

      Volume: 4(1) Issue: 1

    • DOI

      10.1002/deo2.290

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Potent antitumor effects of the conditioned medium of bone marrow-derived mesenchymal stem cells via IGFBP-4.2023

    • Author(s)
      Furusaka Y, Inoue S, Mizoguchi I, Hasegawa H, Katahira Y, Watanabe A, Sakamoto E, Sekine A, Miyakawa S, Umezu T, Owaki T, Yoneto T, Yoshimoto T.
    • Journal Title

      Cancer Sci.

      Volume: in press Issue: 6 Pages: 2499-2514

    • DOI

      10.1111/cas.15789

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Optimal DNA quality preservation process for comprehensive genomic testing of pediatric clinical autopsy formalin-fixed, paraffin-embedded tissues.2022

    • Author(s)
      Watanabe N, Umezu T, Kyushiki M, Ichimura K, Nakazawa A, Kuroda M.
    • Journal Title

      Pol J Pathol

      Volume: 73(3) Issue: 3 Pages: 255-263

    • DOI

      10.5114/pjp.2022.124492

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiple cancer type classification by small RNA expression profiles with plasma samples from multiple facilities2022

    • Author(s)
      Suzuki K, Igata H, Abe M, Yamamoto Y; small RNA based cancer classification project.
    • Journal Title

      Cancer Science

      Volume: - Issue: 6 Pages: 2144-2166

    • DOI

      10.1111/cas.15309

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Analysis of Mutation Signatures Involved in Colorectal Cancer Prognosis2024

    • Author(s)
      Tomohiro Umezu, Akira Saito, Masahiko Kuroda
    • Organizer
      第112回日本病理学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Identification and biological significance of de novo mutational signatures in cfDNA derived from lung cancer patients2024

    • Author(s)
      Tomohiro Umezu, Yujin Kudoh, Yoshihisa Shimada, Tatsuo Ohira, Yoshiki Murakami, Norihiko Ikeda, Masahiko Kuroda
    • Organizer
      第8回Liquid biopsy研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Circulating miRNA analysis of hepatocellular carcinoma induced by chronic liver disease C after clearance of HCV2023

    • Author(s)
      Yoshiki Murakami, Tomohiro Umezu, Shogo Tanaka, Shoji Kubo, Masaru Enomoto, Akihiro Tamori, Takahiro Ochiya, Y-h Taguchi, Masahiko Kuroda
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Identification and biological significance of de novo mutational signatures in cfDNA derived from lung patients2023

    • Author(s)
      Tomohiro Umezu, Yujin Kudoh, Yoshihisa Shimada, Tatsuo Ohira, Yoshiki Murakami, Norihiko Ikeda, Masahiko Kuroda
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] リキッドバイオプシーを用いたがんゲノム医療の新しい展開ーパッセンジャー変異の意義と臨床応用ー2023

    • Author(s)
      梅津知宏、黒田雅彦
    • Organizer
      第131回東京脳腫瘍研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大腸癌予後に関与するMutation Signatureの解析2023

    • Author(s)
      梅津知宏、斎藤彰、黒田雅彦
    • Organizer
      第112回日本病理学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] アセロラ果汁由来小胞を担体とした薬物脳内デリバリーの試み2022

    • Author(s)
      梅津知宏, 樋口恒星, 高梨正勝, 大野慎一郎, 原田裕一郎, 黒田雅彦
    • Organizer
      第9回日本細胞外小胞学会
    • Related Report
      2022 Research-status Report
  • [Presentation] エクソソーム中miRNAによる潜在性結核診断法の開発2022

    • Author(s)
      村上善基, 梅津知宏, 中嶋弘一, 田口善弘, 黒田雅彦
    • Organizer
      第9回日本細胞外小胞学会
    • Related Report
      2022 Research-status Report
  • [Presentation] AIによる病理組織形態解析とゲノム変異解析の融合2022

    • Author(s)
      齋藤彰, 梅津知宏, 黒田雅彦
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Cell-free DNAから前癌病変に特徴的なmutational signatureの同定とリキッドバイオプシーへの応用2022

    • Author(s)
      梅津知宏, 工藤良平, 村上善基, 大野慎一郎, 工藤勇人, 池田徳彦, 黒田雅彦
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 正常細胞および腫瘍細胞のCell-free DNAの産生メカニズムの解明とLiquid biopsyへの応用2022

    • Author(s)
      梅津知宏, 黒田雅彦
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 血中遊離DNAからのmutational signatureの検出と非侵襲性早期診断システムの開発2021

    • Author(s)
      梅津 知宏、斎藤 彰、工藤 勇人、嶋田 善久、大平 達夫、池田 徳彦、黒田 雅彦
    • Organizer
      第110回日本病理学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Analysis of miRNA expression in liver and blood in precancerous state of hepatocellular carcinoma2021

    • Author(s)
      Tomohiro Umezu, Yoshiki Murakami, Masahiko Kuroda
    • Organizer
      The 80th Annual Meeting of the Japan Cancer Association
    • Related Report
      2021 Research-status Report
  • [Presentation] 経口投与によるアセロラ果汁由来小胞のDDS担体としての有用性2021

    • Author(s)
      梅津 知宏、高梨 正勝、大野 慎一郎、原田 裕一郎、黒田 雅彦
    • Organizer
      The 8th Annual Meeting of the Japanese Society for Extracellular Vesicles
    • Related Report
      2021 Research-status Report
  • [Presentation] 血中遊離DNAにおけるゲノムsignatureの検出および早期診断・再発リスク予測システムの開発2021

    • Author(s)
      梅津 知宏、工藤 勇人、嶋田 善久、大平 達夫、池田 徳彦、黒田 雅彦
    • Organizer
      第62回日本肺癌学会学術集会
    • Related Report
      2021 Research-status Report

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

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