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Investigation of the roles of bone marrow-derived fibroblasts/myofibroblasts and their molecular mechanism in the carcinogenesis of mouse models of pancreatic cancer

Research Project

Project/Area Number 17K09460
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Gastroenterology
Research InstitutionKyoto University

Principal Investigator

Takaishi Shigeo  京都大学, 医学研究科, 特定准教授 (20596829)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords膵癌発症マウス / ヒト及びマウス膵癌培養細胞株 / ヒト膵癌オルガノイド / COX-1, -2遺伝子 / CAGE法 / 膵癌幹細胞 / 上皮間葉転換(EMT) / SNAIL2(別称SLUG) / 膵癌自然発症マウス(KPC) / ヒト及びマウス膵癌培養細胞 / CAGE法遺伝子解析 / 上皮間葉転換関連転写因子(EMT-TFs) / SNAIL2(=SLUG)遺伝子 / 膵癌自然発症マウス / ヒト膵癌培養細胞株 / COX-1遺伝子 / COX-2遺伝子 / ヒト膵癌培養細胞 / 膵癌発症複合遺伝子変異マウス / 癌 / 内科
Outline of Final Research Achievements

We changed the research subjects to the following new ones: A) Characterization of our newly established two murine pancreatic cancer cell lines: a) from pancreatic intraepithelial neoplasia (PanIN), b) from intraductal papillary-mucinous neoplasm (IPMN). B) Investigation of molecular mechanism of epithelial-mesenchymal transition (EMT) in human pancreatic cancer by using pancreatic cancer cell lines (PCLs) and patient-derived pancreatic cancer organoids (PDOs).
We obtained following results: A) The transcriptome of PanIN cells exhibited properties of stemness, while that of IPMN cells was enriched for PI3K/Akt signal-related genes. Various transcriptional factor networks in PanIN and IPMN cells reflect the distinct molecular profiles of these cell types. B) Among EMT-related transcriptional factors, SNAIL2 is most highly expressed in PCLs as well as PDOs. Suppression of SNAIL2 decreased tumorigenicity, and microarray analysis revealed the mechanism was mainly mediated by IGFBP2.

Academic Significance and Societal Importance of the Research Achievements

膵癌の5年相対生存率は男女平均で約8.5%であり、全癌腫中で最低の数値である。従って、膵癌の発癌機構を解明し新たな治療戦略を見出すことは現在の癌診療政策における喫緊の課題であると言える。
今回の研究成果は、PanINとIPMNで異なる転写因子ネットワークが機能しており、前者で幹細胞関連因子が高発現し、後者ではPI3K/Aktシグナルが亢進していることを示した。加えて、ヒト膵癌においてEMT関連因子であるSNAIL2の発現を抑制することにより、癌幹細胞分画が縮小し抗癌剤への抵抗性が減弱すること、従ってSNAIL2およびその主たる下流遺伝子であるIGFBP2が新規の治療標的となることが期待される。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] SNAIL regulates gastric carcinogenesis through CCN3 and NEFL.2021

    • Author(s)
      Ru Chen, Kenji Masuo, Akitada Yogo, Shoko Yokoyama, Aiko Sugiyama, Hiroshi Seno, Akihiko Yoshizawa, Shigeo Takaishi
    • Journal Title

      Carcinogenesis

      Volume: 42 (2) Issue: 2 Pages: 190-201

    • DOI

      10.1093/carcin/bgaa133

    • NAID

      120006979787

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Promoter-level transcriptome identifies stemness associated with relatively high proliferation in pancreatic cancer cells.2020

    • Author(s)
      Ru Chen, Aiko Sugiyama, Naoyuki Kataoka, Masahiro Sugimoto, Shoko Yokoyama, Akihisa Fukuda, Shigeo Takaishi, Hiroshi Seno
    • Journal Title

      Frontiers in Oncology,

      Volume: 10 Pages: 1-14

    • DOI

      10.3389/fonc.2020.00316

    • NAID

      120006826695

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Arid1a is essential for intestinal stem cells through Sox9 regulation.2019

    • Author(s)
      Hiramatsu Y, Fukuda A, Ogawa S, Goto N, Ikuta K, Tsuda M, Matsumoto Y, Kimura Y, Yoshioka T, Takada Y, Maruno T, Hanyu Y, Tsuruyama T, Wang Z, Akiyama H, Takaishi S, Miyoshi H, Taketo MM, Chiba T, Seno H.
    • Journal Title

      Proc Natl Acad Sci U S A.

      Volume: 116 (5) Issue: 5 Pages: 1704-1713

    • DOI

      10.1073/pnas.1804858116

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] E-cadherin regulates proliferation of colorectal cancer stem cells through NANOG.2018

    • Author(s)
      Tamura S, Isobe T, Ariyama H, Nakano M, Kikushige Y, Takaishi S, Kusaba H, Takenaka K, Ueki T, Nakamura M, Akashi K, Baba E.
    • Journal Title

      Oncology Reports

      Volume: 40 (2) Pages: 693-703

    • DOI

      10.3892/or.2018.6464

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nardilysin inhibits pancreatitis and suppresses pancreatic ductal adenocarcinoma initiation in mice.2018

    • Author(s)
      Ikuta K, Fukuda A, Ogawa S, Masuo K, Goto N, Hiramatsu Y, Tsuda M, Kimura Y, Matsumoto Y, Kimura Y, Maruno T, Kanda K, Nishi K, Takaori K, Uemoto S, Takaishi S, Chiba T, Nishi E, Seno H.
    • Journal Title

      Gut

      Volume: 印刷中 Issue: 5 Pages: 882-892

    • DOI

      10.1136/gutjnl-2017-315425

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] SNAIL regulates gastric carcinogenesis through CCN3 and NEFL.2020

    • Author(s)
      陳如、高石繁生、増尾謙志、余語覚匡、杉山愛子、妹尾浩
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] SNAIL2は膵癌の幹細胞性維持において重要である2020

    • Author(s)
      増尾謙志、高石繁生、余語覚匡、陳如、福田晃久、増井俊彦、妹尾浩
    • Organizer
      第78回日本癌学会学術総会(ポスター発表)
    • Related Report
      2019 Research-status Report
  • [Presentation] 胆道癌におけるドーパミンの自己分泌作用は癌幹細胞の微小環境に寄与する2020

    • Author(s)
      余語覚匡、高石繁生、増尾謙志、陳如、増井俊彦、妹尾浩
    • Organizer
      第78回日本癌学会学術総会(ポスター発表)
    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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