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C型肝炎ウイルスの持続感染化、生体防御応答による慢性炎症発症機序の解明

Publicly Offered Research

Project AreaConversion of tumor-regulation vector to intercept oncogenic spiral accelerated by infection and inflammation
Project/Area Number 23114511
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionTokyo Metropolitan Institute of Medical Science

Principal Investigator

小原 道法  公益財団法人東京都医学総合研究所, ゲノム医科学研究分野, プロジェクトリーダー (10250218)

Project Period (FY) 2011-04-01 – 2013-03-31
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2012: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2011: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
KeywordsC型肝炎ウイルス / 持続感染 / スイッチング発現トランスジェニック / 治療的ワクチン / 組換えワクチニアウイルス / C型肝炎ウイルス / 持続感染化機序 / 自然免疫監視機構 / 獲得免疫監視機構 / 慢性肝炎 / Cre/loxP/HCV-MxCre Tgマウス / HCV遺伝子組換えワクチニアウイルス
Outline of Annual Research Achievements

【目的】C型肝炎ウイルス(HCV)は200万人と感染者が多く、予後も悪い。HCV感染の大きな特徴として感染後80~90%の高率で持続感染化し、慢性肝炎、さらに肝細胞癌を発症することがあげられる。HCV感染ヒト肝臓組織ではHCVが持続的に複製し、ウイルスが完全には排除されず免疫寛容状態になっている。この免疫寛容獲得から破綻に至る機序を解明することを目的とする。
【研究内容】、HCV遺伝子をスイッチング発現するトランスジェニック(HCV-Tg)マウスを作製し、急性肝炎から慢性肝炎状態に移行し、肝細胞がんを発症させることに成功した。この慢性肝炎に対する治療ワクチンとしてHCV蛋白質組み換えワクチニアウイルス(HCV-rVV)を作製し、慢性肝炎状態のHCV-Tgマウスを用いてHCV-rVVの治療効果を検討した。その結果、HCV-rVV接種後1週で慢性肝炎の病態が改善し、肝細胞の膨化、索状配列の乱れ、脂肪変性、グリコーゲン変性といった組織異常の正常化がみられた。rVV接種後4週でrVV-N25接種群のみで肝臓HCV蛋白量が減少しており、肝臓内のNS2特異的CTL 数の増加が認められた。そこで抗CD8抗体および抗CD4抗体を予め投与した状態のマウスにrVV-N25を接種すると、どちらもHCV蛋白の減少はみられなくなった。このことから、rVV-N25のHCV蛋白の排除にはCD4およびCD8+T細胞が重要であることが示唆された。rVV-N25接種によりHCV蛋白の減少および慢性肝炎の組織像が著明に改善し、これは抗原特異的CTLの誘導のみならず肝臓内へのマクロファージの浸潤が抑制されTNF-aやIL-6の産生が低下したことに起因していると考えられた。これらの知見はrVV-N25が抗ウイルス作用だけでなく抗炎症作用も有することを認め慢性肝炎に対する治療的ワクチンとしての可能性が示された。

Research Progress Status

24年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

24年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (51 results)

All 2013 2012 2011 Other

All Journal Article (18 results) (of which Peer Reviewed: 18 results) Presentation (25 results) Book (6 results) Remarks (2 results)

  • [Journal Article] Targeted induction of interferon-λ in humanized chimeric mouse liver abrogates hepatotropic virus infection2013

    • Author(s)
      Nakagawa S, Hirata Y, Kameyama T, Tokunaga Y, Nishito Y, Hirabayashi K, Yano J, Ochiya T, Tateno C, Tanaka Y, Mizokami M, Tsukiyama-Kohara K, Inoue K, Yoshiba M, Takaoka A, Kohara M
    • Journal Title

      PLoS One

      Volume: 8 Issue: 3 Pages: e59611-e59611

    • DOI

      10.1371/journal.pone.0059611

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An orally available, small-molecule interferon inhibits viral replication2012

    • Author(s)
      Konishi H, et.al.
    • Journal Title

      Scientific Reports

      Volume: 2 Issue: 1 Pages: 259-259

    • DOI

      10.1038/srep00259

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hepatitis C virus promotes expression of the 3β-hydroxysterol δ24-reductase through Sp1.2012

    • Author(s)
      Saito M, Kohara, M, Tsukiyama-Kohara K.
    • Journal Title

      J Med Virol

      Volume: 84 Issue: 5 Pages: 733-746

    • DOI

      10.1002/jmv.23250

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthetic lipophilic antioxidant BO-653 suppresses HCV replication.2012

    • Author(s)
      Yasui F.
    • Journal Title

      J. Medical Virology

      Volume: 85 Issue: 2 Pages: 241-249

    • DOI

      10.1002/jmv.23466

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunization with a recombinant vaccinia virus that encodes nonstructural proteins of the hepatitis C virus suppresses viral protein levels in mouse liver.2012

    • Author(s)
      Sekiguchi, S, Kimura K, Chiyo T, Ohtsuki T, Tobita Y, Tokunaga Y, Yasui F, Tsukiyama-Kohara K, Wakita T, Tanaka T, Miyasaka M, Mizuno K, Hayashi Y, Hishima T, Matsushima K and Kohara M.
    • Journal Title

      PLoS One

      Volume: 7 Issue: 12 Pages: e51656-e51656

    • DOI

      10.1371/journal.pone.0051656

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Translocase of outer mitochondrial membrane 70 induces interferon response and is impaired by hepatitis C virus NS32012

    • Author(s)
      Kasama Y.
    • Journal Title

      Virus.Res.

      Volume: 163 Pages: 405-409

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detergent-induced activation of the hepatitis C virus genotype 1b RNA polymerase2012

    • Author(s)
      Leiyun Weng
    • Journal Title

      Gene

      Volume: 496 Pages: 79-87

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An orally available, small-molecule interferon inhibits hepatitis C virus replication2012

    • Author(s)
      Konishi H.
    • Journal Title

      Sci.Comm.

      Volume: (in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Different mechanisms of hepatitis C virus RNA polymerase activation by cyclophilin A and B in vitro2011

    • Author(s)
      Weng L, Tian X, shimotohno K, et al.
    • Journal Title

      Biochim Biophys Acta

      Volume: 1820 Issue: 12 Pages: 1886-1892

    • DOI

      10.1016/j.bbagen.2012.08.017

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Incorporation of biaryl uniys into the 5' and 3' ends of sense and antisense strands of siRNA duplexes improves strand selectivity and nuclease2011

    • Author(s)
      Yoshikawa k.
    • Journal Title

      Bioconjugate Chemistry

      Volume: 22 Pages: 42-49

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Establishment of infectious HCV virion-producing cells with newly designed full-genome replicon RNA2011

    • Author(s)
      Arai M.
    • Journal Title

      Arch.Virol.

      Volume: 156 Pages: 295-304

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of interleukin-18 in intrahepatic inflammatory cell recruitment in acute liver injury2011

    • Author(s)
      Kimura K.
    • Journal Title

      Journal of Leukocyte Biology

      Volume: 89 Pages: 433-442

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Translocase of outer mitochondrial membranze 70 is induced by hepatitis C virus and is related to the apoptotic response2011

    • Author(s)
      Takano T.
    • Journal Title

      Journal of Med.Virol.

      Volume: 83 Pages: 801-809

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Frontiers of Model Animals for Human Diseases2011

    • Author(s)
      Kimura K.
    • Journal Title

      Experimental Animals

      Volume: 60 Pages: 93-100

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Augmentation of DHCR24 expression by hepatitis C virus infection facilitates viral replication in hepatocytes2011

    • Author(s)
      Takano T.
    • Journal Title

      Journal of Hepatology

      Volume: 55 Pages: 512-21

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conditional hepatitis C virus gene expression without induction of severe inflammatory responses through the use of a Cre-expressing recombinant2011

    • Author(s)
      Chiyo T.
    • Journal Title

      Virus.Res.

      Volume: 160 Pages: 89-97

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Monoclonal antibody 2-152a suppresses hepatitis C virus infection through betaine/GABA transporter-12011

    • Author(s)
      Satoh M.
    • Journal Title

      Journal of Infec.Dis.

      Volume: 204 Pages: 1172-1180

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hepatitis C virus induces overexpression of 3β-hydroxysterol Δ24-reductase through Sp12011

    • Author(s)
      Saito M.
    • Journal Title

      Journal of Med.Virol.

      Volume: 84 Pages: 733-746

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] Self-enhancement of Hepatitis C Virus replication by promotion of specific sphingolipid biosynthesis.2012

    • Author(s)
      Hirata Y.
    • Organizer
      19th International Symposium on Hepatitis C Virus and Related Viruses
    • Place of Presentation
      Venice (Italy)
    • Year and Date
      2012-10-08
    • Related Report
      2012 Annual Research Report
  • [Presentation] C型肝炎ウイルスの複製に関与する新規宿主因子BGT-12012

    • Author(s)
      小原 恭子
    • Organizer
      第71回日本癌学会学術総会
    • Place of Presentation
      ロイトン札幌
    • Year and Date
      2012-09-19
    • Related Report
      2012 Annual Research Report
  • [Presentation] Development of Pandemic Influenza Vaccines based on Recombinant Vaccinia Virus.2012

    • Author(s)
      Yasui F
    • Organizer
      2012 TEPIK International Influenza Symposium
    • Place of Presentation
      Seoul (KOREA)
    • Year and Date
      2012-06-29
    • Related Report
      2012 Annual Research Report
  • [Presentation] cDNA-uPA/SCIDマウスをホストとした長期試験に適するヒト肝細胞キメラマウスの開発2012

    • Author(s)
      大下浩樹
    • Organizer
      第59回日本実験動物学会総会
    • Place of Presentation
      別府国際コンベンションセンター(大分)
    • Year and Date
      2012-05-24
    • Related Report
      2012 Annual Research Report
  • [Presentation] Augmentation of DHCR24 expression by hepatitis C virus infection facilitates viral replication in hepatocytes.2012

    • Author(s)
      Takano T.
    • Organizer
      The International Liver Congress
    • Place of Presentation
      Barcelona (SPAIN)
    • Year and Date
      2012-04-20
    • Related Report
      2012 Annual Research Report
  • [Presentation] Interferon-lambda plays a critical role in antiviral response in human hepatocytes2011

    • Author(s)
      Hirata Y.
    • Organizer
      第34回日本分子生物学会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] French marine bark extract pycnogenol is a new candidate of Heoatitis C virus therapeutic material2011

    • Author(s)
      Nishimura T.
    • Organizer
      第34回日本分子生物学会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] Recombinant vaccinia virus encoding hepatitis C virus nonstructural protein modulates host immune response and ameliorates chronic hepatitis in mouse model2011

    • Author(s)
      Kimura K.
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      幕張メッセ(千葉)
    • Year and Date
      2011-11-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] Evaluation of the therapeutic effect of DNA vaccines in the mouse model of chronic HCV infection2011

    • Author(s)
      Wada T.
    • Organizer
      第40回日本免疫学会学術集会
    • Place of Presentation
      幕張メッセ(千葉)
    • Year and Date
      2011-11-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] Recombinant vaccinia virus encoding hepatitis C virus nonstructural protein modulates host immune response and ameliorates chronic hepatitis in mouse model2011

    • Author(s)
      Kimura K.
    • Organizer
      The American Association for the Study of Liver Diseasea
    • Place of Presentation
      San Francisco
    • Year and Date
      2011-11-08
    • Related Report
      2011 Annual Research Report
  • [Presentation] Suppression of sphingomyelin augmented by hepatitis C virus has robust antivitral effects in human livers2011

    • Author(s)
      Hirata Y.
    • Organizer
      The American Association for the Study of Liver Diseasea
    • Place of Presentation
      San Francisco
    • Year and Date
      2011-11-08
    • Related Report
      2011 Annual Research Report
  • [Presentation] ヒト肝細胞での自然免疫応答におけるIFN-λの重要性とその誘導メカニズム2011

    • Author(s)
      平田雄一
    • Organizer
      第15回日本肝臓学会大会
    • Place of Presentation
      福岡サンパレス
    • Year and Date
      2011-10-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] HCV持続発現マウスを用いたHCVワクチンの開発2011

    • Author(s)
      木村公則
    • Organizer
      第15回日本肝臓学会大会
    • Place of Presentation
      福岡サンパレス
    • Year and Date
      2011-10-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] C型肝炎発症におけるウイルス蛋白質と炎症サイトカイン2011

    • Author(s)
      小原道法
    • Organizer
      第70回日本癌学会学術総会
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2011-10-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] C型肝炎ウイルスの複製におけるDHCR24の役割2011

    • Author(s)
      高野貴士
    • Organizer
      第70回日本癌学会学術総会
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2011-10-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] Suppression of sphingomyelin augmented by hepatitis C virus has robust antiviral effects in human livers2011

    • Author(s)
      Hirata Y.
    • Organizer
      International Union of Microbiological Societies
    • Place of Presentation
      Sapporo Convention Center
    • Year and Date
      2011-09-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Regulation of HCV replication by fatty acid synthase2011

    • Author(s)
      Munakata T.
    • Organizer
      18^<th> International Symposium Hepatitis C Virus and Related Viruses
    • Place of Presentation
      Seattle(米国)
    • Year and Date
      2011-09-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Novel infectious clone of HCV la strain HCV-RMT efficiently replicate in vitro and in vivo using adaptive mutations2011

    • Author(s)
      Tokunaga Y.
    • Organizer
      18^<th> International Symposium Hepatitis C Virus and Related Viruses
    • Place of Presentation
      Seattle(米国)
    • Year and Date
      2011-09-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Augmentation of DHCR24 expression by hepatitis C virus infection facilitates viral replication in hepatocytes2011

    • Author(s)
      Takano T.
    • Organizer
      18^<th> International Symposium Hepatitis C Virus and Related Viruses
    • Place of Presentation
      Seattle(米国)
    • Year and Date
      2011-09-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] Persistent expression of the full genome of hepatitis C virus in B cells induces spontaneous development of B-cell lymphomas in mice2011

    • Author(s)
      Kasama Y.
    • Organizer
      18^<th> International Symposium Hepatitis C Virus and Related Viruses
    • Place of Presentation
      Seattle(米国)
    • Year and Date
      2011-09-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] HCV持続発現マウスを用いたHCV治療ワクチンの開発2011

    • Author(s)
      小原道法
    • Organizer
      第10回CBSM2011
    • Place of Presentation
      軽井沢プリンスホテル(長野)
    • Year and Date
      2011-06-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] HCV感染による慢性肝炎の病態形成と炎症性サイトカインの関与2011

    • Author(s)
      木村公則
    • Organizer
      第47回日本肝臓学会総会
    • Place of Presentation
      ホテルグランパシフィック(東京)
    • Year and Date
      2011-06-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] PCRとin situ hybridizationを組み合わせたHCVとHBVのウイルスゲノム存在様式可視化の試み2011

    • Author(s)
      井上和明
    • Organizer
      第47回日本肝臓学会総会
    • Place of Presentation
      ホテルグランパシフィック(東京)
    • Year and Date
      2011-06-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] 新規C型慢性肝炎モデルマウスを用いたC型慢性肝炎の病態解析2011

    • Author(s)
      大槻貴博
    • Organizer
      第58回日本実験動物学会総会
    • Place of Presentation
      タワーホール船橋(東京)
    • Year and Date
      2011-05-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] Spontaneous development of B-cell lymphomas by persistent expression of the full genome of hepatitis C virus in B cells in mics2011

    • Author(s)
      Tsukiyama-Kohara K.
    • Organizer
      2011 ASBMB
    • Place of Presentation
      広州(中国)
    • Related Report
      2011 Annual Research Report
  • [Book] ヒト肝細胞における強力なIFN-λ誘導による抗ウイルス効果2012

    • Author(s)
      平田 雄一
    • Publisher
      化学評論社
    • Related Report
      2012 Annual Research Report
  • [Book] C型肝炎ウイルス感染モデル2012

    • Author(s)
      小原 道法
    • Publisher
      株式会社エル・アイ・シー
    • Related Report
      2012 Annual Research Report
  • [Book] HCV治療ワクチンの開発について2012

    • Author(s)
      木村 公則
    • Publisher
      癌と科学療法社
    • Related Report
      2012 Annual Research Report
  • [Book] 新時代のウイルス性肝炎学-「HCVの病原性発現に関与するウイルス因子とその機能」2011

    • Author(s)
      小原恭子
    • Total Pages
      6
    • Publisher
      日本臨床
    • Related Report
      2011 Annual Research Report
  • [Book] C型肝炎ウイルスによる免疫攪乱と炎症発がん2011

    • Author(s)
      小原恭子
    • Total Pages
      7
    • Publisher
      BIO Clinica
    • Related Report
      2011 Annual Research Report
  • [Book] 細胞膜成分を標的としたC型肝炎治療薬2011

    • Author(s)
      須藤正幸
    • Total Pages
      5
    • Publisher
      BIO Clinica
    • Related Report
      2011 Annual Research Report
  • [Remarks] 公益財団法人東京都医学総合研究所

    • URL

      http://www.igakuken.or.jp/

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.igakuken.or.jp

    • Related Report
      2011 Annual Research Report

URL: 

Published: 2011-04-06   Modified: 2018-03-28  

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