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2012 Fiscal Year Final Research Report

Impact of viral amino acid substitutions and host IL28B polymorphism on replication and susceptibility to interferon of hepatitis C virus

Research Project

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Project/Area Number 22590737
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Gastroenterology
Research InstitutionHiroshima University

Principal Investigator

IMAMURA Michio  広島大学, 病院, 病院助教 (40403513)

Project Period (FY) 2010 – 2012
KeywordsC型慢性肝炎 / インターフェロン / IL38B遺伝子多型 / HCV Core変異 / ISDR / ヒト肝細胞キメラマウス
Research Abstract

Using human hepatocyte chimeric ice, we found that hepatitis C virus (HCV) replication levels and response to interferon (IFN) are affected by mutations in the ISDR, not by amino acid substitutions in HCV Core region. We also found that the effect of IFN was significantly greater, and intrahepatic expression levels of IFN-stimulated genes were significantly higher in mice with the favorable IL28B allele.

  • Research Products

    (10 results)

All 2012 2011 2010

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] Impact of interleukin-28B genotype on in vitro and in vivo systems of hepatitis C virus replication2012

    • Author(s)
      Chayama K, Hayes CN, Imamura M
    • Journal Title

      Hepatol Res

      Volume: 42(9) Pages: 841-53

    • Peer Reviewed
  • [Journal Article] Genetics of IL28B and HCV-response to infection and treatment2012

    • Author(s)
      Hayes CN, Imamura M, Aikata H, Chayama K
    • Journal Title

      Nat Rev Gastroenterol Hepatol

      Volume: 9(7) Pages: 406-17

    • Peer Reviewed
  • [Journal Article] Impact of viral amino acid substitutions and host IL28B polymorphism on replication and susceptibility to interferon of hepatitis C virus2011

    • Author(s)
      Hiraga N, Abe H, Imamura M, Tsuge M, Takahashi S, Hayes CN, Ochi H, Tateno C, Yoshizato K, Nakamura Y, Kamatani N, Chayama K
    • Journal Title

      Hepatology

      Volume: 54(3) Pages: 764-771

    • Peer Reviewed
  • [Journal Article] Inverse association of IL28B genotype and liver mRNA expression of genes promoting or suppressing antiviral state2011

    • Author(s)
      Abe H, Hayes CN, Ochi H, Tsuge M, Miki D, Hiraga N, Imamura M, Takahashi S, Kubo M, Nakamura Y, Kamatani N, Chayama K
    • Journal Title

      J Med Virol

      Volume: 83(9) Pages: 1597-607

    • Peer Reviewed
  • [Presentation] C型肝炎ウイルスの感染およびIFN治療におけるIL28B遺伝子多型の影響2012

    • Author(s)
      今村道雄,阿部弘美,平賀伸彦,越智秀典,茶山一彰
    • Organizer
      第77回インターフェロンサイトカイン学会
    • Place of Presentation
      神戸
    • Year and Date
      2012-06-01
  • [Presentation] Impact of Viral Amino Acid Substitutions and Host IL28B polymorphism on Replication and Susceptibility to Interferon of Hepatitis C Virus2011

    • Author(s)
      Michio Imamura, Hiromi Abe, Nobuhiko Hiraga, Masataka Tsuge, Shoicih Takahashi, C. Nelson Hayes, Hidenori Ochi, Chise Tateno, Katsutoshi Yoshizato, Kazauaki Chayama
    • Organizer
      The 62th Annual Meeting of the American Association for the Study of Liver Diseases.
    • Place of Presentation
      San Francisco
    • Year and Date
      2011-11-04
  • [Presentation] The influences of viral mutations on HCV infectivity, replication ability and the susceptibility to interferon in human hepatocyte chimeric mice.2010

    • Author(s)
      Michio Imamura, Nobuhiko Hiraga, Masataka Tsuge, Shoichi Takahashi, Hiromi Abe, C. Nelson Hayes, Hidenori Ochi and Kazuaki Chayama
    • Organizer
      The 7th APASL Single Topic Conference
    • Place of Presentation
      Chiba
    • Year and Date
      2010-12-17
  • [Presentation] IL-28B predicts response to peginterferon-alfa-2b plus ribavirin therapy in Japanese patients infected with hepatitis C virus genotype 1b2010

    • Author(s)
      Michio Imamura, Hidenori Ochi, Hiromi Abe, Tomokazu Kawaoka, Yoshimasa Hashimoto, Shoichi Takahashi, C. Nelson Hayes, Kazuaki Chayama
    • Organizer
      HCV 2010
    • Place of Presentation
      Yokohama
    • Year and Date
      2010-09-13
  • [Presentation] C型慢性肝炎患者におけるIL28B 多型とウイルス側および宿主側因子との関連2010

    • Author(s)
      今村道雄,越智秀典,茶山一彰
    • Organizer
      第46回日本肝臓学会総会
    • Place of Presentation
      山形
    • Year and Date
      2010-06-27
  • [Presentation] C型慢性肝炎に対するインターフェロン治療におけるIL28B 多型とCore領域変異の影響2010

    • Author(s)
      今村道雄,越智秀典,茶山一彰.
    • Organizer
      第96回日本消化器病学会総会
    • Place of Presentation
      新潟
    • Year and Date
      2010-04-23

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Published: 2014-08-29  

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