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2011 Fiscal Year Final Research Report

Exploitation of gene-targeting therapy based on the cellular and biological features of oral-carcinoma stem cell and tumor microenvironment.

Research Project

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Project/Area Number 20249079
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionHokkaido University

Principal Investigator

TOTSUKA Yasunori  北海道大学, 大学院・歯学研究科, 教授 (00109456)

Co-Investigator(Kenkyū-buntansha) SHINDOH Masanobu  北海道大学, 大学院・歯学研究科, 教授 (20162802)
HIGASHINO Fumihiro  北海道大学, 大学院・歯学研究科, 准教授 (50301891)
HIDA Kyoko  北海道大学, 大学院・歯学研究科, 特任准教授 (40399952)
KITAMURA Tetsuya  北海道大学, 大学院・歯学研究科, 助教 (00451451)
OHBA Yusuke  北海道大学, 大学院・医学研究科, 准教授 (30333503)
MATSUMOTO Kenichi  島根大学, 総合科学研究支援センター, 教授 (30202328)
OHIRO Yoichi  北海道大学, 大学院・歯学研究科, 助教 (40301915)
Project Period (FY) 2008 – 2011
Keywords口腔癌 / 癌の微小環境 / 癌幹細胞 / 上皮間葉移行
Research Abstract

We have shown that the tumor endothelial cells which exist in cancer stroma have a different gene background from normal endothelial cells. It has been becoming clear that epithelial-mesenchymal transition (EMT) plays an important role in tumor invasion and metastasis. It is expected that the investigation on the interaction of the oral squamous cell carcinoma cell in epithelium nature and a mesenchymal cell will contribute to the establishment of effective therapeutic method because stromal cells have the ability to supply nutrition and oxygen to a tumor. HuR protein usually exists in the nucleus, and HuR is participating to stabilize AU-rich element (ARE) mRNA. We showed that ARE mRNA is stabilized through HuR by a viral carcinogenesis system that concerns cell transformation. Oral environment has a unique features including distinct organs such as salivary glands. We identified that RANKL, an osteoclast inducer, expression was higher in oral environment. Furthermore, when oral cancer cells were implanted in oral region of nude mice, cancer cells proliferated intentionally, and EMT was observed. Tumor microenvironment is deeply correlated with cancer cell proliferation and invasion/metastasis. We have isolated endothelial cells in tumor stroma, and investigated the biological feature of tumor endothelial cells. As a result, tumor angiogenesis was suppressed by inhibiting Cox-2 known also for the factor inducing inflammation, and the resistance for chemothrapy was acquired by MDR1 upregulatin caused by VEGF signaling

  • Research Products

    (13 results)

All 2012 2011 2010 2009 2008

All Journal Article (7 results) Presentation (6 results)

  • [Journal Article] Biglycan is a specific marker and an autocrine angiogenic factor of tumor endothelial cells2012

    • Author(s)
      Yamamoto K, Ohga N, Hida Y, Maishi N, Kawamoto T, Kitayama K, Akiyama K, Osawa T, Kondoh M, Matsuda K, OnoderaY, Fujie M, Kaga K, Hirano S, Shinohara N, Shindoh M, Hida K
    • Journal Title

      Br J Cancer

      Volume: 106 Pages: 1214-1223

  • [Journal Article] HuR keeps an angiogenic switch on by stabilizing mRNA of VEGF and COX-2 in tumor endothelium2011

    • Author(s)
      Kurosu T, Ohga N, Hida Y, Maishi N, Akiyama K, Kakuguchi W, Kuroshima T, Kondo M, Akino T, Totsuka Y, Shindoh M, Higashino F, Hida K
    • Journal Title

      Br J Cancer

      Volume: 104 Pages: 819-829

  • [Journal Article] RANKL expression specifically observed in vivo promotes epithelial mesenchymal transition and tumor progression2011

    • Author(s)
      Yamada T, Tsuda M, Takahashi T, Kawaguchi H, Totsuka Y, Shindoh M, Ohba Y
    • Journal Title

      Am J Pathol

      Volume: 178 Pages: 2846-2857

  • [Journal Article] Viral-mediated stabilization of AU-rich element containing mRNA contributes to cell transformation2011

    • Author(s)
      Kuroshima T, Aoyagi M, Yasuda M, Kitamura T, Jehung JP, Ishikawa M, Kitagawa Y, Totsuka Y, Shindoh M, Higashino F
    • Journal Title

      Oncogene

      Volume: 30 Pages: 2912-2920

  • [Journal Article] HuR knockdown changes the oncogenic potential of oral cancer cells2010

    • Author(s)
      Kakuguchi W, Kitamura T, Kuroshima T, Ishikawa M, Kitagawa Y, Totsuka Y, Shindoh M, Higashino F
    • Journal Title

      Mol Cancer Res

      Volume: 8 Pages: 520-528

  • [Journal Article] HuR is exported to he cytoplasm in oral cancer cells in a different manner from that of normal cells2009

    • Author(s)
      Hasegawa H, Kakuguchi W, Kuroshima T, Kitamura T, Tanaka S, Kitagawa Y, Totsuka Y, Shindoh M, Higashino F
    • Journal Title

      Br J Cancer

      Volume: 100 Pages: 1943-1948

  • [Journal Article] Cytogenetic abnormalities of tumor-associated endothelial cells in human malignant tumors2009

    • Author(s)
      Akino T, Hida K, Hida Y, Tsuchiya K, Freedman D, Muraki C, Ohga N, MatsudaK, Harabayashi T, Shinohara N, NonomuraK, Klagsbrun M, Shindoh M
    • Journal Title

      Am J Pathol

      Volume: 175 Pages: 2657-2667

  • [Presentation] RANKL upregulaters integrin α2expression and cell adhesion in oral cancer cells2011

    • Author(s)
      Ohba Y, Yamada T, Fujioka Y, KaibaraT, Totsuka Y, Shindoh M, Tsuda M
    • Organizer
      第63回日本細胞生物学会
    • Year and Date
      20110627-29
  • [Presentation] がん微小環境内の血管内皮の異常性.(日本病理学会学術研究賞A演説)2010

    • Author(s)
      樋田京子、大賀則孝、樋田泰浩、進藤正信
    • Organizer
      第56回日本病理学会秋期特別総会
    • Year and Date
      20101125-26
  • [Presentation] RNA結合タンパクHuRと口腔がんの浸潤活性との関連2010

    • Author(s)
      格口渉、東野史裕、北村哲也、戸塚靖則、進藤正信
    • Organizer
      第69回日本癌学会総会
    • Year and Date
      20100922-24
  • [Presentation] RANKL発現は腫瘍形成とEMTを亢進する2010

    • Author(s)
      山田珠希、津田真寿美、戸塚靖則、進藤正信、大場雄介
    • Organizer
      第69回日本癌学会総会
    • Year and Date
      20100922-24
  • [Presentation] 口腔癌細胞の接着に関する分子の機能解析2008

    • Author(s)
      山田珠樹、津田真寿美、大場雄介、川口秀明、戸塚靖則、進藤正信
    • Organizer
      第31回日本分子生物学会年会、第81回日本生化学会大会合同大会
    • Year and Date
      20081209-12
  • [Presentation] Pim-1はTRAF2,ASK-1と相互作用しJNKを一過性に活性化する2008

    • Author(s)
      田中宗一、北村哲也、東野史裕、樋田京子、戸塚靖則、進藤正信
    • Organizer
      第31回日本分子生物学会年会、第81回日本生化学会大会合同大会
    • Year and Date
      20081209-12

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Published: 2013-07-31  

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