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人の肝細胞を有するマウスを使用した劇症肝炎等の原因となる新規病態微生物の探索

Research Project

Project/Area Number 19659186
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionHiroshima University

Principal Investigator

茶山 一彰  Hiroshima University, 大学院・医歯薬学総合研究科, 教授 (00211376)

Project Period (FY) 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2007: ¥3,300,000 (Direct Cost: ¥3,300,000)
Keywords肝炎ウイルス / 劇症肝炎 / ゲノム / キメラマウス
Research Abstract

病原微生物を分離する生体材料として、血清を液体窒素中で凍結保存し、ヒト肝細胞キメラマウス接種し、2、7,14,21日と経時的に採血を行った。投与前の血清と投与後の各時点の血清を用いてrepresentational difference analysisにより投与前には存在せず、投与後に存在する核酸を分離同定し、塩基配列を確認することにより未知の病原微生物を検出することを試みている。
(1)これまでに液体窒素中に保存されている検体に加え、あらたに劇症肝炎、virus associated hemophagocytic syndromeの症例の血清を保存した。
(2)10症例分の検体を一群として、キメラマウスに経時的に投与した。投与前、および投与後1、2,4,8,16週と血清を採取し、保存した。
(3)各血清から核酸を抽出し、adopter primerを用いて逆転写反応を行った。さらに、linker ligationを行い、linkerのcomplementary strandとなるprimerを合成、2nd strandの合成を行いdouble strand DNAを得た。投与後の検体から得られたDNAをtester、投与前の血清から得られたDNAを driverとしてrepresentational difference analysisを行い、病原体特異的な核酸を増幅した。
現在いくつかのバンドを切り出して、塩基配列の決定を行っている。

Report

(1 results)
  • 2007 Annual Research Report
  • Research Products

    (14 results)

All 2007 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (1 results) Remarks (1 results)

  • [Journal Article] Eicosapentaenoic acid could permit maintenance of the original ribavirin dose in chronic hepatitis C virus patients during the first 12 weeks of combination therapy with pegylated interferon-alpha and ribavirin. A prospective randomized controlled trial2007

    • Author(s)
      Takaki S, Kawakami Y, Imamura M, Aikata H, Takahashi S, Ishihara H, Tsuji, Chayama K., et. al.
    • Journal Title

      Intervirology 50(6)

      Pages: 439-46

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficacy of percutaneous cementoplasty for bone metastasis from hepatocellular carcinoma.2007

    • Author(s)
      Kodama H, Aikata H, Uka K, Chayama K., et. al.
    • Journal Title

      Oncology 72(5-6):

      Pages: 285-92

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Susceptibility of chimeric mice with livers repopulated by serially subcultured human hepatocytes to hepatitis B virus.2007

    • Author(s)
      Utoh R, Tateno C, Chayama K, Yoshizato K., et. al.
    • Journal Title

      Hepatology 47(2)

      Pages: 435-46

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pretreatment predictor of response, time to progression, and survival to intraarterial 5-fluorouracil/interferon combination therapy in patients with advanced hepatocellular carcinoma.2007

    • Author(s)
      Uka K, Aikata H, Takaki S, Miki D, Kawaoka T, Jeong SC, Chayama K., et. al.
    • Journal Title

      J Gastroenterol 42(10)

      Pages: 845-53

    • NAID

      10019970751

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Successful treatment of an entecavir-resistant hepatitis B virus variant.2007

    • Author(s)
      Yatsuji H, Hiraga N, Kumada H, Chayama K., et. al.
    • Journal Title

      J Med Virol 79(12)

      Pages: 1811-7

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Similar effects of recombinant interferon-alpha-2b and natural interferon-alpha when combined with intra-arterial 5-fluorouracil for the treatment of advanced hepatocellular carcinoma2007

    • Author(s)
      Uka K, Aikata H, Takaki S, Chayama K., et. al.
    • Journal Title

      Liver Int. 27(9)

      Pages: 1209-16

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of a 24-week course of interferon-alpha therapy after curative treatment of hepatitis C virus-associated hepatocellular carcinoma.2007

    • Author(s)
      Jeong SC, Aikata H, Chayama K., et. al.
    • Journal Title

      World J Gastroenterol. 28;13(40)

      Pages: 5343-50

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Balloon-occluded retrograde transvenous obliteration for portal-systemic encephalopathy due to superior mesenteric-caval shunt via the right gonadal vein2007

    • Author(s)
      Katamura Y, Aikata H, Azakami T, Chayama K., et. al.
    • Journal Title

      Intern Med 46(17):

      Pages: 1479-80

    • NAID

      130000076076

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The long-term outcome of patients with bleeding gastric varices after balloon-occluded retrograde transvenous obliteration.2007

    • Author(s)
      Hiraga N, Aikata H, Shirakawa H, Chayama K., et. al.
    • Journal Title

      J Gastroenterol 42(8)

      Pages: 663-72

    • NAID

      10019817220

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Infection of human hepatocyte chimeric mouse with genetically engineered hepatitis C virus and its susceptibility to interferon.2007

    • Author(s)
      Hiraga N, Imamura M, Tsuge M, Chayama K., et. al.
    • Journal Title

      FEBS Lett 15;581(10)

      Pages: 1983-7

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dual effect of APOBEC3G on Hepatitis B virus.2007

    • Author(s)
      Noguchi C, Chayama K., et. al.
    • Journal Title

      J Gen Virol 88(Pt 2)

      Pages: 432-40

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clinical features and prognosis of patients with extrahepatic metastases from hepatocellular carcinoma.2007

    • Author(s)
      Uka K, Aikata H, Chayama K., et. al.
    • Journal Title

      World J Gastroenterol. 21;13(3)

      Pages: 414-20

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 培養細胞および動物モデルを用いた肝炎ウィルスのインターフェロン感受性の検討2007

    • Author(s)
      今村 道雄
    • Organizer
      日本肝臓学会総会
    • Place of Presentation
      ホテルグランパシフィックメリディアン
    • Year and Date
      2007-05-31
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://home.hiroshima-u.ac.jp/naika1/

    • Related Report
      2007 Annual Research Report

URL: 

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

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