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Discovering tumor microenvironment of pancreatic cancer

Research Project

Project/Area Number 19K09181
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionKanagawa Cancer Center Research Institute

Principal Investigator

Hiroshima Yukihiko  地方独立行政法人神奈川県立病院機構神奈川県立がんセンター(臨床研究所), 臨床研究所, 部長 (60718021)

Co-Investigator(Kenkyū-buntansha) 黒滝 大翼  横浜市立大学, 医学部, 講師 (10568455)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords膵癌 / 微小環境 / PDX / オルガノイド / 遺伝子発現 / SMAD4 / 腫瘍免疫 / 癌微小環境 / TGFβ
Outline of Research at the Start

TGFβシグナリングが膵癌腫瘍内免疫機構に深く関与していることに着目し、癌間質のプロテオーム解析の結果から標的分子を同定した。本研究では、膵癌のTGFβシグナリングによる免疫逃避機構を解明し、TGFβシグナルを標的とした新規治療薬の開発の可能性を追求することを目的とし、2種類の膵癌マウスモデル(humanized PDXモデル、KPC mice)にTGFβ阻害薬、Proteasome阻害薬を投与し、腫瘍間質の免疫細胞群のPopulationと発現分子の変化をFACSとRNAseqで解析し、腫瘍内免疫機構におけるTGFβシグナルの制御因子を同定する。

Outline of Final Research Achievements

Cancer-stromal interactions have been recognized as important targets for cancer therapy. Here we studied 14 resected pancreatic cancer specimens (PDAC: 8, IPMA:6). Shotgun proteomics of the stromal lesion was performed, and identified 102 differentially expressed proteins in pancreatic cancer stroma. Next, we identified 1435 genes which were differentially expressed in pancreatic cancer cells, using TCGA and GTEx database. We applied these datasets to our in-house ligand-receptor database. Finally, we identified 8 key cancer-stromal-interaction targets for PDAC patients.
We studied 4 PDXs established from PDAC patients (2 had early recurrences and 2 had late recurrences). Only reads unambiguously classified as human were labeled “human” and used for further analyses. Next, we detected 28 DEGs, and “NFAT signaling cascade” was significantly enriched among the DEGs. Finally, we found that NFATc2/NFAT5 co-expression were independent prognostic factors for OS.

Academic Significance and Societal Importance of the Research Achievements

膵癌では癌の微小環境(TME)の増生が顕著であり、TMEの構造は癌細胞によって積極的に構築され、様々な側面から癌の進展(増殖、生存、浸潤、転移)を促進させていることが知られており、癌細胞とTMEとの相互作用は癌治療の新たな標的として注目を集めている。
本研究では、膵癌間質組織のマイクロダイセクション検体のプロテオーム解析データやPDXの解析データを使用し、癌細胞とTMEの発現分子を別々に検討し、インタラクトーム解析(独自の相互作用データベースに照会すること)により、真に標的とすべきシグナル伝達経路、相互作用が同定され、膵癌の新規治療薬の開発に重要な知見が得られたと考えられる。

Report

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

    (5 results)

All 2022 2020 2019

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Novel targets identified by integrated cancer-stromal interactome analysis of pancreatic adenocarcinoma.2020

    • Author(s)
      Hiroshima Y, Kasajima R, Kimura Y, Komura D, Ishikawa S, Ichikawa Y, Bouvet M, Yamamoto N, Oshima T, Morinaga S, Singh SR, Hoffman RM, Endo I, Miyagi Y.
    • Journal Title

      Cancer Lett.

      Volume: 469 Pages: 217-227

    • DOI

      10.1016/j.canlet.2019.10.031

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 膵癌における予後不良因子としてのNFAT familyの検討2022

    • Author(s)
      上岡祐人,廣島幸彦,河原慎之輔,村川正明,山本直人,玉川洋,大島貴,宮城洋平,利野靖,森永聡一郎
    • Organizer
      第122回日本外科学会定期学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Impact of Nuclear Factor of Activated T-cells (NFAT) families as a poor prognostic factor in pancreatic cancer patients.2022

    • Author(s)
      Yuto Kamioka, Yukihiko Hiroshima, Shinnosuke Kawahara, Masaaki Murakawa, Naoto Yamamoto, Hiroshi Tamagawa, Takashi Oshima, Yohei Miyagi, Yasushi Rino, Soichiro Morinaga
    • Organizer
      ASCO-GI
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NFAT family contributes to early recurrence in pancreatic ductal adenocarcinoma2020

    • Author(s)
      廣島幸彦、笠島理加、大津敬、宮城洋平.
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Impact of comprehensive cancer-stromal interactome analysis in pancreatic cancer2019

    • Author(s)
      Yukihiko Hiroshima, Rika Kasajima, Yayoi Kimura, Daisuke Komura, Shumpei Ishikawa, Yasushi Ichikawa, Itaru Endo, and Yohei Miyagi
    • Organizer
      第78回日本癌学会
    • Related Report
      2019 Research-status Report

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

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