MISC

2017年3月

Activation of TNF-α-AID axis and co-inhibitory signals in coordination with Th1-type immunity in a mouse model recapitulating hepatitis B

Antiviral Research
  • Tomonori Matsumoto
  • ,
  • Ken Takahashi
  • ,
  • Tadashi Inuzuka
  • ,
  • Soo Ki Kim
  • ,
  • Tomoaki Kurosaki
  • ,
  • Shigeru Kawakami
  • ,
  • Tsutomu Chiba
  • ,
  • Hiroshi Seno
  • ,
  • Hiroyuki Marusawa

139
開始ページ
138
終了ページ
145
記述言語
英語
掲載種別
DOI
10.1016/j.antiviral.2017.01.004

© 2017 Elsevier B.V. Hepatitis B virus (HBV) infection evokes host immune responses that primarily determine the outcome of HBV infection and the clinical features of HBV-associated liver disease. The precise mechanisms by which host factors restrict HBV replication, however, are poorly understood due to the lack of useful animal models that recapitulate immune responses to HBV. Here, we performed comprehensive immunologic gene expression profiling of the liver of a mouse model recapitulating anti-HBV immune response using a high sensitivity direct digital counting system. Anti-HBV cellular immunity with liver inflammation was elicited in mice hydrodynamically injected with a CpG-depleted plasmid encoding hepatitis B surface antigen (HBsAg) gene after preimmunization with HBsAg vaccine. Comprehensive expression analyses revealed the upregulation of Th1-associated genes including tumor necrosis factor (Tnf) and negative regulators of T cell function in the inflamed liver. Interestingly, activation-induced cytidine deaminase (Aicda, termed AID in humans), which reportedly suppresses HBV infection in vitro, was upregulated in hepatocytes in the course of anti-HBV immunity. Hepatocytic expression of Aicda in a Tnf-dependent manner was confirmed by the administration of Tnf antagonist into Aicda-tdTomato mice with anti-HBV immunity. Our findings suggest that activation of Tnf–Aicda axis and co-inhibitory signals to T cells in coordination with Th1-type immunity has critical roles in the immune response against HBV infection.

リンク情報
DOI
https://doi.org/10.1016/j.antiviral.2017.01.004
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/28063995
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000394397100017&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85008931827&origin=inward
ID情報
  • DOI : 10.1016/j.antiviral.2017.01.004
  • ISSN : 0166-3542
  • eISSN : 1872-9096
  • PubMed ID : 28063995
  • SCOPUS ID : 85008931827
  • Web of Science ID : WOS:000394397100017

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