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Identification of gene sets related with metastasis by detecting circulating tumor cells

Research Project

Project/Area Number 21K15916
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Ishibashi Rei  東京大学, 医学部附属病院, 助教 (50843299)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords循環腫瘍細胞
Outline of Research at the Start

これまで簡便なポリマー樹脂CTCチップを応用し、閉塞性大腸癌に対する内視鏡的金属ステント留置術の前後でのCTC数の変化を中心に検討しつつCTCの確実な捕捉法を樹立してきたが、本研究では、CTCの捕捉だけでなく その遺伝子解析研究を進め、大腸癌患者を対象に捕捉したCTCのホットスポットの遺伝子変異の半網羅的解析とRNA発現状況の半網羅的解析を行って、それらと臨床情報とを統合して解析することで真に遠隔転移惹起と相関する遺伝子変異・発現遺伝子セットを同定する。そのうえで、転移ドライバー分子を絞り込み、機能解析を加えて大腸癌遠隔転移責任分子を同定する。

Outline of Final Research Achievements

As seen in drug decisions based on genetic analysis using oncopanels, cancer treatment is rapidly shifting to treatment based on information on gene mutations and expression within cancer cells. Therefore, it is thought that a method for easily and frequently acquiring genetic information of cancer cells will be essential in the future. One of the methods is to capture circulating tumor cells, but in this study, we will not only capture CTCs, but also conduct genetic analysis research to identify gene mutations and expressed gene sets that correlate with the induction of distant metastasis in colorectal cancer. We identified the molecules responsible for colorectal cancer distant metastasis through functional analysis, and demonstrated the clinical utility of CTC capture and genetic analysis.

Academic Significance and Societal Importance of the Research Achievements

ヒト大腸癌患者で捕捉される循環腫瘍細胞の遺伝子発現状況の解析と、その後の臨床情報とを統合して解析を行うことで、遠隔転移に真に関わる分子を同定できることを証明しえた。さらに、その機能解析を実験的に行って生物学的な機能解明に貢献し、CTCの捕捉と遺伝子解析の有用性について、検体・基礎的手法・統合解析・臨床情報といったものが高度に組み合わさって初めてできた研究であり、それだけでもオリジナリティーが高く、CTC研究分野・Personalized medicine の促進にもブレークスルーをもたらしうると考えられる。

Report

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

    (5 results)

All 2024 2023 2022 2021

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

  • [Journal Article] Gut Bacteria-derived Membrane Vesicles Induce Colonic Dysplasia by Inducing DNA Damage in Colon Epithelial Cells2024

    • Author(s)
      Miyakawa Yu、Otsuka Motoyuki、Shibata Chikako、Seimiya Takahiro、Yamamoto Keisuke、Ishibashi Rei、Kishikawa Takahiro、Tanaka Eri、Isagawa Takayuki、Takeda Norihiko、Kamio Noriaki、Imai Kenichi、Fujishiro Mitsuhiro
    • Journal Title

      Cellular and Molecular Gastroenterology and Hepatology

      Volume: 17 Issue: 5 Pages: 745-767

    • DOI

      10.1016/j.jcmgh.2024.01.010

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Japanese Prospective, Multicenter Study of Colonic Stenting for Palliation Using a High Axial Force Self-Expandable Metal Stent for Malignant Large Bowel Obstruction in 200 Patients2023

    • Author(s)
      Ishibashi Rei、Sasaki Takashi、Isayama Hiroyuki、Matsuzawa Takeaki、Kuwai Toshio、Yamada Tomonori、Saito Shuji、Tomita Masafumi、Shiratori Toshiyasu、Ikeda Satoshi、Kanazawa Hideki、Fujishiro Mitsuhiro、Maetani Iruru、Saida Yoshihisa
    • Journal Title

      Journal of Clinical Medicine

      Volume: 12 Issue: 15 Pages: 5134-5134

    • DOI

      10.3390/jcm12155134

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Combination of serum human satellite RNA and miR-21-5p levels as a biomarker for pancreatic cancer2023

    • Author(s)
      Seimiya Takahiro、Suzuki Tatsunori、Iwata Takuma、Kishikawa Takahiro、Sekiba Kazuma、Shibata Chikako、Ishigaki Kazunaga、Fujiwara Hiroaki、Oyama Hiroki、Kanai Sachiko、Sato Tatsuya、Nakai Yousuke、Ishibashi Rei、Moriyama Masaru、Nakagawa Ryo、Ijichi Hideaki、Otsuka Motoyuki、Koike Kazuhiko
    • Journal Title

      iScience

      Volume: 26 Issue: 2 Pages: 106021-106021

    • DOI

      10.1016/j.isci.2023.106021

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of novel large‐bore and conventional‐bore covered self‐expandable metal stents for malignant gastric outlet obstruction: Multicenter, retrospective study2022

    • Author(s)
      Inokuma Akiyuki、Takahara Naminatsu、Ishibashi Rei、Hakuta Ryunosuke、Ishigaki Kazunaga、Saito Kei、Saito Tomotaka、Hamada Tsuyoshi、Mizuno Suguru、Yagioka Hiroshi、Takahashi Sho、Kogure Hirofumi、Sasaki Takashi、Hirano Kenji、Ito Yukiko、Isayama Hiroyuki、Nakai Yousuke、Koike Kazuhiko、Fujishiro Mitsuhiro
    • Journal Title

      Digestive Endoscopy

      Volume: 35 Issue: 1 Pages: 111-121

    • DOI

      10.1111/den.14418

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mutant KRAS drives metabolic reprogramming and autophagic flux in premalignant pancreatic cells.2021

    • Author(s)
      Suzuki T, Kishikawa T, Sato T, Takeda N, Sugiura Y, Seimiya T, Sekiba K, Ohno M, Iwata T, Ishibashi R, Otsuka M, Koike K.
    • Journal Title

      Cancer Gene Ther.

      Volume: - Issue: 5 Pages: 505-518

    • DOI

      10.1038/s41417-021-00326-4

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access

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

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