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B型肝炎、C型肝炎による病態と自然免疫に関する研究

Research Project

Project/Area Number 13F03100
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Gastroenterology
Research InstitutionChiba University

Principal Investigator

横須賀 收  千葉大学, 医学(系)研究科(研究院), 教授 (90182691)

Co-Investigator(Kenkyū-buntansha) WU SHUANG  千葉大学, 医学(系)研究科(研究院), 外国人特別研究員
呉 霜  千葉大学, 大学院医学研究院, 外国人特別研究員
WU Shuang  千葉大学, 大学院医学研究院, 外国人特別研究員
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,973,616 (Direct Cost: ¥2,973,616)
Fiscal Year 2015: ¥673,616 (Direct Cost: ¥673,616)
Fiscal Year 2014: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2013: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsHBV / TNF / IL-1B / NF-kB / IGFBP1 / IGF signaling / IL1B / NF-κB / HRV
Outline of Annual Research Achievements

自然免疫反応はERストレス、インスリン抵抗性を始めとする代謝異常と相互作用し、肝炎ウイルスとの関係に関しては未だ十分に解明されていない。また、TNF, IL-1Bなどの炎症性サイトカインはHBV感染患者で上昇していることが観察され、NF-kBシグナル経路の活性化とERストレスの関連が示唆される。これまでに我々はLuciferase assay, PCR array及びWestern blottingなどの実験手法により、Huh7を用いた検討でTNF及びIL-1Bの刺激により HBVやHBxによるNF-kBの活性化の増強; HepG2と比較し、HepG2.2.15細胞におけるPPAR-alpha、XBP1、PIK3R1、IGFBP1、APOA1、 DGAT2およびGK mRNA発現が有意な上昇;IGFBP1のreporter assay を行い、IGFBP1プロモーター活性がHBxによって増強されることを明らかにした。HBV感染をおこなったヒトマウスキメラ肝細胞PXBを用いて検討では、HBV感染1カ月目のPXB細胞を用いて検討(HBV DNA~5logIU/mL, HBsAg陽性)すると、PPARa、IGFBP1、ERK2の発現がHBV感染により増加する傾向を確認した。(Wu S, et al. Cooperative effects of hepatitis B virus and TNF might play important roles in activation of metabolic pathways through activation of NF-κB. Int J Mol Med. (2016,accepted))。また、ヒト肝生検標本を用いてIGFBP1の発現を免疫組織学的に検討すると、その発現は原発性胆汁性肝硬変<B型肝炎<脂肪肝と増加する傾向を認めた。さらに、HBVやHBxがIGFBP1を含むIGF1シグナル経路(IGF1、IGF1Rなど)に与える影響を検討し、その作用機序についてオートファジーにも注目し、現在更に検討中である。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (17 results)

All 2016 2015 2014 2013

All Journal Article (16 results) (of which Peer Reviewed: 16 results,  Open Access: 8 results) Presentation (1 results)

  • [Journal Article] Cooperative effects of hepatitis B virus and TNF might play important roles in activation of metabolic pathways through activation of NF-κB2016

    • Author(s)
      SHUANG WU, TATSUO KANDA, SHINGO NAKAMOTO, XIA JIANG, MASATO NAKAMURA, REINA SASAKI, YUKI HAGA, HIROSHI SHIRASAWA and OSAMU YOKOSUKA
    • Journal Title

      International Journal of Molecular Medicine

      Volume: 37

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sofosbuvir treatment and hepatitis C virus infection2016

    • Author(s)
      Nakamura M, Kanda T, Haga Y, Sasaki R, Wu S, Nakamoto S, Yasui S, Arai M, Imazeki F, Yokosuka O
    • Journal Title

      World Journal of Hepatology

      Volume: 8 Issue: 3 Pages: 183-190

    • DOI

      10.4254/wjh.v8.i3.183

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Possible Involvement of Hepatitis B Virus Infection of Hepatocytes in the Attenuation of Apoptosis in Hepatic Stellate Cells.2016

    • Author(s)
      Sasaki R, Kanda T, Nakamura M, Nakamoto S, Haga Y, Wu S, Shirasawa H, Yokosuka O.
    • Journal Title

      PLoS One.

      Volume: 11 Issue: 1 Pages: 1-17

    • DOI

      10.1371/journal.pone.0146314

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MicroRNA-122 Inhibits the Production of Inflammatory Cytokines by Targeting the PKR Activator PACT in Human Hepatic Stellate Cells2015

    • Author(s)
      Nakamura M, Kanda T, Sasaki R, Haga Y, Jiang X, Wu S, Nakamoto S, Yokosuka O
    • Journal Title

      PLoS ONE

      Volume: 10 Issue: 12 Pages: e0144295-e0144295

    • DOI

      10.1371/journal.pone.0144295

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Direct-acting Antivirals and Host-targeting Agents against the Hepatitis A Virus2015

    • Author(s)
      Kanda T, Nakamoto S, Wu S, Nakamura M, Jiang X, Haga Y, Sasaki R, Yokosuka O
    • Journal Title

      J Clin Transl Hepatol

      Volume: 3 Issue: 3 Pages: 205-210

    • DOI

      10.14218/jcth.2015.00016

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent Trend of Hepatitis E Virus Infection in Chiba Area, Japan: 3 of 5 Cases with Rheumatoid Arthritis2015

    • Author(s)
      Kanda T, Yasui S, Nakamura M, Arai M, Sasaki R, Haga Y, Wu S, Nakamoto S, Okamoto H, Yokosuka O
    • Journal Title

      Case Rep Gastroenterol

      Volume: 9 Issue: 3 Pages: 317-326

    • DOI

      10.1159/000441387

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Suppression of La Antigen Exerts Potential Antiviral Effects against Hepatitis A Virus.2014

    • Author(s)
      Jiang X, Kanda T, Wu S, Nakamoto S, Saito K, Shirasawa H, Kiyohara T, Ishii K, Wakita T, Okamoto H, Yokosuka O.
    • Journal Title

      PLoS One.

      Volume: 9 Issue: 7 Pages: e101993-e101993

    • DOI

      10.1371/journal.pone.0101993

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Regulation of microRNA by hepatitis B virus infection and their possible association with control of innate immunity.2014

    • Author(s)
      Jiang X, Kanda T, Wu S, Nakamura M, Miyamura T, Nakamoto S, Banerjee A, Yokosuka O.
    • Journal Title

      World J Gastroenterol.

      Volume: 20 Issue: 23 Pages: 7197-7206

    • DOI

      10.3748/wjg.v20.i23.7197

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Occurrence and Recurrence of Hepatocellular Carcinoma Were Not Rare Events during Phlebotomy in Older Hepatitis C Virus-Infected Patients.2014

    • Author(s)
      Kanda T, Nakamoto S, Yasui S, Nakamura M, Miyamura T, Wu S, Jiang X, Arai M, Imazeki F, Yokosuka O.
    • Journal Title

      Case Rep Oncol.

      Volume: 7 Issue: 2 Pages: 288-296

    • DOI

      10.1159/000362869

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hepatitis C virus NS5A inhibitors and drug resistance mutations2014

    • Author(s)
      Nakamoto S., et al.
    • Journal Title

      World J Gastroenterol

      Volume: 20 Pages: 2902-2912

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultra-deep sequencing analysis of the hepatitis A virus 5'-untranslated region among cases of the same outbreak from a single source2013

    • Author(s)
      Wu S., et al.
    • Journal Title

      Int J Med Sci.

      Volume: 11 Issue: 1 Pages: 60-64

    • DOI

      10.7150/ijms.7728

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hepatitis C virus protease inhibitor-resistance mutations : our experience and review2013

    • Author(s)
      Wu S., et al.
    • Journal Title

      World J Gastroenterol.

      Volume: 19 Issue: 47 Pages: 8940-8948

    • DOI

      10.3748/wjg.v19.i47.8940

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevalence of hepatitis C virus subgenotypes 1a and 1b in Japanese pa tients : ultra-deep sequencing analysis of HCV NS5B genotype-specific region2013

    • Author(s)
      Wu S., at al.
    • Journal Title

      PLoS One.

      Volume: 8 Issue: 9 Pages: e73615-e73615

    • DOI

      10.1371/journal.pone.0073615

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] No correlation between PNPLA3 rs738409 genotype and fatty liver and hepatic cirrhosis in Jananese patients with HCV2013

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

      PLoS One

      Volume: 8 Issue: 12 Pages: e81312-e81312

    • DOI

      10.1371/journal.pone.0081312

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Different effects of three interferons L on Toll-like receptor-related gene exnression in HepG2 cells2013

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

      Cytokine

      Volume: 64 Issue: 2 Pages: 577-583

    • DOI

      10.1016/j.cyto.2013.08.010

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lipopolysaccharide blocks induction of unfolded protein response in hum an hepatoma cell lines2013

    • Author(s)
      Jiang X., et al.
    • Journal Title

      Immunol Lett.

      Volume: 152 Issue: 1 Pages: 8-19

    • DOI

      10.1016/j.imlet.2013.03.006

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Cooperative effects of Hepatitis B virus and TNF might play important roles in hepatocarcinogenesis through activation of NF-kB, metabolic and ER stress signaling2013

    • Author(s)
      Wu S, et al.
    • Organizer
      The American Association for the Study of Liver Diseases (AASLD)
    • Place of Presentation
      Walter E. Washington Convention Center 801 Mount Vernon PI. NW. USA
    • Related Report
      2013 Annual Research Report

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Published: 2014-01-29   Modified: 2024-03-26  

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