論文

2005年9月

Wild-type measles virus infection in human CD46/CD150-transgenic mice: CD11c-positive dendritic cells establish systemic viral infection

JOURNAL OF IMMUNOLOGY
  • M Shingai
  • ,
  • N Inoue
  • ,
  • T Okuno
  • ,
  • M Okabe
  • ,
  • T Akazawa
  • ,
  • Y Miyamoto
  • ,
  • M Ayata
  • ,
  • K Honda
  • ,
  • M Kurita-Taniguchi
  • ,
  • M Matsumoto
  • ,
  • H Ogura
  • ,
  • T Taniguchi
  • ,
  • T Seya

175
5
開始ページ
3252
終了ページ
3261
記述言語
英語
掲載種別
研究論文(学術雑誌)
出版者・発行元
AMER ASSOC IMMUNOLOGISTS

We generated transgenic (TG) mice that constitutively express human CD46 (huCD46) and/or TLR-inducible CD150 (huCD150), which serve as receptors for measles virus (MV). These mice were used to study the spreading and pathogenicity of GFPexpressing or intact laboratory-adapted Edmonston and wild-type Ichinose (IC) strains of MV. Irrespective of the route of administration, neither type of MV was pathogenic to these TG mice. However, in ex vivo, limited replication of IC was observed in the spleen lymphocytes from huCD46/buCD150 TG and huCD150 TG, but not in huCD46 TG and non-TG mice. In huCD150-positive TG mouse cells, CD11c-positive bone marrow-derived myeloid dendritic cells (mDC) participated in MV-mediated type I IFN induction. The level and induction profile of IFN-beta was higher in mDC than the profile of IFN-alpha. Wild-type IC induced markedly high levels of IFN-beta compared with Edmonston in mDC, as opposed to human dendritic cells. We then generated huCD46/huCD150 TG mice with type I IFN receptor (IFNAR1)-/- mice. MV-bearing mDCs spreading to draining lymph nodes were clearly observed in these triple mutant mice in vivo by i.p. MV injection. Infectious lymph nodes were also detected in the double TG mice into which MV-infected CD11c-positive mDCs were i.v. transferred. This finding suggests that in the double TG mouse model mDCs once infected facilitate systemic MV spreading and infection, which depend on mDC MV permissiveness determined by the level of type I IFN generated via IFNAR1. Although these results may not simply reflect human MV infection, the huCD150/huCD46 TG mice may serve as a useful model for the analysis of MV-dependent modulation of mDC response.

Web of Science ® 被引用回数 : 48

リンク情報
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000232010600058&DestApp=WOS_CPL
ID情報
  • ISSN : 0022-1767
  • Web of Science ID : WOS:000232010600058

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