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2008 Fiscal Year Annual Research Report

トール受容体の発がん制御機構の解析

Research Project

Project/Area Number 20012002
Research InstitutionHokkaido University

Principal Investigator

瀬谷 司  Hokkaido University, 大学院・先端生命科学研究院, 教授 (10301805)

Keywords炎症性発がん / TLR経路 / TICAM-1(TRIF) / ウイルス発がん / インターフェロン / マクロファージ / 自然発生がん / 移植がん
Research Abstract

本研究はToll様受容体(TLR)の発がんプロモーターとしての機能、抗がん免疫起動のアジュバントとしての機能を発がんマウスモデルとTLR系のKOマウスを使って解析するという趣旨である。MyD88-/-, TICAM-1-/-, IPS-1-/-のKOマウスを確立し、移植がん(B16D8 MIClow, 3LL MIChighvs. C57BL/6)の系でがん退縮と腫瘍内浸潤細胞を調べた。刺激物は最適RNA誘導体が未完成なのでpolyI : Cを用いた。PolyI : C刺激(s. c. 投与)有りと無しの担がんマウスで腫瘍の増殖と腫瘍院に浸潤する細胞群の組成を解析した。PolyI : Cによる腫瘍退縮はNKによるものと査定されて来たが(Akazawa et al., PNAS 2007)、早期の発がん過程にNK細胞は腫瘍内に同定されずmyeloid系の細胞のみが検知できた。これらががん細胞に炎症応答を誘起している可能性について検討している。
移植がんではなく、自然発生がんで如何なる炎症応答が誘起されるかは興味ある問題である。腸管を含む消化管・肝胆膵のmyeloid系細胞をFACSAriaで解析する事を進めている。機器が遅れて搬入されたため、未だ報告データがない。自然発生がんのマウスモデルも現在までに作成が完了していない。次年度に報告をまとめる予定である。

  • Research Products

    (13 results)

All 2009 2008

All Journal Article (13 results) (of which Peer Reviewed: 13 results)

  • [Journal Article] Riplet/RNF135, a RING-finger protein, ubiquitinates RIG-I to promote interferon-β induction during the early phase of viral infection2009

    • Author(s)
      Oshiumi, H., Seya, T. et.al.
    • Journal Title

      J. Biol. Chem. 284

      Pages: 807-817

    • Peer Reviewed
  • [Journal Article] Obstructing shedding of the immune stimulatory MHC class I chain-related,gene B prevents tumor formation2009

    • Author(s)
      Wu, J. D., Seva, T. et.al.
    • Journal Title

      Clin. Cancer Res. 15

      Pages: 632-640

    • Peer Reviewed
  • [Journal Article] Functional evolution of the TICAM-1 (TRIF) pathway for extrinsic RNA sensing.(review)2009

    • Author(s)
      Seva. T. et.al.
    • Journal Title

      Immunol. Rev. 227

      Pages: 44-53

    • Peer Reviewed
  • [Journal Article] Innate immune therapy with a BCG cell wall skeleton after radical suraery for non-small cell lung cancer : a case-control study2009

    • Author(s)
      Kodama, K., Seva, T. et.al.
    • Journal Title

      Surgery Today 39

      Pages: 194-200

    • Peer Reviewed
  • [Journal Article] The extrinsic RNA-sensing pathway for adjuvant immunotherapy of cancer.(review)2009

    • Author(s)
      Seva, T. et.al.
    • Journal Title

      Cancer Immunol. Immunother. (in press)

    • Peer Reviewed
  • [Journal Article] NK cell licensing by dendritic cell in RNA virus infection.(review)2009

    • Author(s)
      Ebihara, T., Seva, T. et.al.
    • Journal Title

      Curr. Immunol. Rev (in press)

    • Peer Reviewed
  • [Journal Article] Antitumor natural killer cell induction by orally administered Spirulina extract in mice2009

    • Author(s)
      Akao, Y., Seva, T. et.al.
    • Journal Title

      Cancer Sci. (submitted)

    • Peer Reviewed
  • [Journal Article] Tumor-secreted lactic acid promotes IL-23-I.L-17 proinflammatory pathway2008

    • Author(s)
      Shime, H., Seva, T. et.al.
    • Journal Title

      J. Immunol. 180

      Pages: 7175-7183

    • Peer Reviewed
  • [Journal Article] Increased expression of Toll-like receptor3 in intrahepatic biliary epithel ial cells at sites of ductular reaction in diseased livers2008

    • Author(s)
      Nakamura, M., Seya, T. et.al.
    • Journal Title

      Hepatology International 2

      Pages: 222-230

    • Peer Reviewed
  • [Journal Article] Homo-oligomerization is essential for ToII/IL-1 receptor domain containing adaptor molecule-1-mediated NF-kappaB and interferon regulatory factor-3 activation2008

    • Author(s)
      Funami K., Seva, T. et.al.
    • Journal Title

      J. Biol. Chem. 283

      Pages: 18283-18291

    • Peer Reviewed
  • [Journal Article] Hepatitis C virus (HCV)-infected hepatocytes extrinsically modulate dendritic cell maturation to activate T cells and NK cells2008

    • Author(s)
      Ebihara, T., Seva, T. et.al.
    • Journal Title

      Hepatology 48

      Pages: 48-58

    • Peer Reviewed
  • [Journal Article] Soluble G protein of respiratory syncytial virus inhibts Toll-like receptor 3/4-mediated IFN-beta induction2008

    • Author(s)
      Shingai, M., Seva, T. et.al.
    • Journal Title

      Int. Immunol. 20

      Pages: 1169-1180

    • Peer Reviewed
  • [Journal Article] The clathrin-mediated endocytic pathway participates in dsRNA-induced IFN-13 production2008

    • Author(s)
      Itoh, K., Seva. T. et.al.
    • Journal Title

      J. Immunol. 181

      Pages: 5522-5529

    • Peer Reviewed

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Published: 2010-06-11   Modified: 2016-04-21  

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