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Analyzing the mechanism of replication of hepatitis C virus by NS3 helicase

Research Project

Project/Area Number 19590756
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Gastroenterology
Research InstitutionUniversity of Yamanashi

Principal Investigator

MAEKAWA Shinya  University of Yamanashi, 大学院・医学工学総合研究部, 講師 (70397298)

Co-Investigator(Kenkyū-buntansha) ENOMOTO Nobuyuki  山梨大学, 大学院・医学工学総合研究部, 教授 (20251530)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsHCV / NS3ヘリカーゼ / 自然免疫 / HCVゲノムシークエンス
Research Abstract

本研究の目的はC 型肝炎ウイルス(HCV)増殖制御因子として申請者らが新たに明らかにした非構造蛋白NS3ヘリカーゼ・ドメインに着目し、同領域によるHCV増殖制御機構の解明を通して、新たな抗HCV治療戦略の基盤を形成することにある。申請者らは本研究において、HCVゲノムの相同組み換え実験により、ウイルスゲノム増殖にはHCV の非構造蛋白NS3ヘリカーゼドメインが決定的な役割を果たすことをまず明らかとしたが、詳細なマッピングを行うことにより、さらに最終的に6アミノ酸部位に絞られることを示した。一方、ウイルス増殖を制御する宿主の主要機構である自然免疫との関連に注目し、RIG-Iに誘導されるインターフェロン発現シグナルをNS3 蛋白は構造依存的に抑制することを明らかとした。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (17 results)

All 2009 2008 2007

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (8 results)

  • [Journal Article] Two flavonoids extracts from Glycyrrhizae radix inhibit in vitro hepatitis C virus replication.2009

    • Author(s)
      Sekine-Osajima Y, Maekawa S, et. al
    • Journal Title

      Hepatol Res. 39

      Pages: 60-69

    • NAID

      10025324061

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Griseofulvin, an oral antifungal agent, suppresses hepatitis C virus replication in vitro2008

    • Author(s)
      Jin H, Yamashita A, Maekawa S, Yang P, He L, Takayanagi S, Wakita T, Sakamoto N, Enomoto N, Ito M
    • Journal Title

      Hepatol Res. 38(9)

      Pages: 909-18

    • NAID

      10021946476

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Two flavonoids extracts from Glycyrrhizae radix inhibit in vitro hepatitis C virus replication2008

    • Author(s)
      Sekine-Osajima Y, Sakamoto N, Nakagawa M, Itsui Y, Tasaka M, Nishimura-Sakurai Y, Chen CH, Suda G, Mishima K, Onuki Y, Yamamoto M, Maekawa S, Enomoto N, Kanai T, Tsuchiya K, Watanabe M.
    • Journal Title

      Hepatol Res.

      Pages: 720-720

    • NAID

      10025324061

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Targeting lipid metabolism in the treatment of hepatitis C virus infection2008

    • Author(s)
      Maekawa S, Amemiya F, Itakura Y, Kanayama A, Matsui A, Takano S, Yamaguchi T, Itakura J, Kitamura T, Inoue T, Sakamoto M, Yamauchi K, Okada S, Yamashita A, Sakamoto N, Itoh M, Enomoto N.
    • Journal Title

      J Infect Dis. 197(3)

      Pages: 361-70

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Targeting lipid metabolism in the treatment of hepatitis C.2008

    • Author(s)
      Amemiya F, Maekawa S, et. al.
    • Journal Title

      J Infect Dis. 197

      Pages: 361-370

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Griseofulvin, an oral antifungal agent, suppresses HCV replication in vitro.2008

    • Author(s)
      Jin H, Maekawa S, et. al.
    • Journal Title

      Hepatol. Res. (In press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hepatitis C virus non-structural proteins responsible for suppression of the RIG-I/Cardif-induced interferon response2007

    • Author(s)
      Tasaka M, Sakamoto N, Itakura Y, Nakagawa M, Itsui Y, Sekine-Osajima Y, Nishimura-Sakurai Y, Chen CH, Yoneyama M, Fujita T, Wakita T, Maekawa S, Enomoto N, Watanabe M.
    • Journal Title

      J Gen Virol 88(Pt12): 3323-33.12)

      Pages: 3323-33

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] HCV nonstructural proteins responsible for suppression of RIG-I/Cardif-induced interferon response.2007

    • Author(s)
      Tasaka M, Maekawa S, et. al.
    • Journal Title

      J Gen Virol. 88

      Pages: 3323-33

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of hepatitis C virus infection and expression in vitro and in vivo by recombinant adenovirus expressing short hairpin RNA.2007

    • Author(s)
      Sakamoto N, Maekawa S, et. al.
    • Journal Title

      J Gastroenterol Hepatol. (Epub ahead of print)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Whole HCV sequencing による治療感受性規定領域の決定2008

    • Author(s)
      前川伸哉、榎本信幸、他
    • Organizer
      第12 回日本肝臓学会大会ワークショップ Viral genotyping/sequencingの臨床的意義
    • Place of Presentation
      東京
    • Year and Date
      2008-10-02
    • Related Report
      2008 Final Research Report
  • [Presentation] Whole HCV seouencingによる治療感受性規定領域の決定2008

    • Author(s)
      前川伸哉, 他
    • Organizer
      第12回日本肝臓学会大会 ワークショップ Viral genotyping/sequencingの臨床的意義
    • Place of Presentation
      東京
    • Year and Date
      2008-10-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] HCV ゲノム検索によるペグインターフェロン・リバビリン併用療法における治療感受性規定領域の決定2008

    • Author(s)
      前川伸哉、榎本信幸、他
    • Organizer
      第44 回日本肝臓学会総会ワークショップ ウイルス感染・複製・排除のメカニズム
    • Place of Presentation
      松山
    • Year and Date
      2008-06-06
    • Related Report
      2008 Final Research Report
  • [Presentation] HCVゲノム検索によるペグインターフエロン・リハビリン併用療法における治療感受性規定領域の決定2008

    • Author(s)
      前川伸哉, 他
    • Organizer
      第44回日本肝臓学会総会ワークショップ ウイルス感染・複製・排除のメカニズム
    • Place of Presentation
      松山
    • Year and Date
      2008-06-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] HCV 遺伝子構造による自然免疫RIG-I経路阻害活性の検討2008

    • Author(s)
      前川伸哉、榎本信幸
    • Organizer
      第94 回日本消化器病学会総会シンポジウム ウイルス肝炎・肝癌に対する生体防御
    • Place of Presentation
      福岡
    • Year and Date
      2008-05-08
    • Related Report
      2008 Final Research Report
  • [Presentation] HCV遺伝子構造による自然免疫RIG-I経路阻害活性の検討2008

    • Author(s)
      前川伸哉, 榎本信幸
    • Organizer
      第94回日本消化器病学会総会シンポジウム ウイルス肝炎・肝癌に対する生体防御
    • Place of Presentation
      福岡
    • Year and Date
      2008-05-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] Molecular evolution of hepatitis C virus in a patient with liver transplantation2007

    • Author(s)
      Maekawa S, Enomoto N, et.al
    • Organizer
      International Symposium on Hepatitis C Virus and Related Viruses (14th Annual Meeting)
    • Place of Presentation
      Glasgow (Scotland)
    • Year and Date
      2007-09-13
    • Related Report
      2008 Final Research Report
  • [Presentation] Molecular evolution of hepatitis C virus in a patient with liver transplantation2007

    • Author(s)
      Maekawa S, et. al.
    • Organizer
      International Symposium on Hepatitis C Virus and Related Viruses(14th Annual Meeting)
    • Place of Presentation
      Glasgow(Scotland).
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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