Article (Scientific journals)
IgG fc receptors provide an alternative infection route for murine gamma-herpesvirus-68.
Rosa, Gustavo T; Gillet, Laurent; Smith, Christopher M et al.
2007In PLoS ONE, 2 (6), p. 560
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Abstract :
[en] BACKGROUND: Herpesviruses can be neutralized in vitro but remain infectious in immune hosts. One difference between these settings is the availability of immunoglobulin Fc receptors. The question therefore arises whether a herpesvirus exposed to apparently neutralizing antibody can still infect Fc receptor(+) cells. PRINCIPAL FINDINGS: Immune sera blocked murine gamma-herpesvirus-68 (MHV-68) infection of fibroblasts, but failed to block and even enhanced its infection of macrophages and dendritic cells. Viral glycoprotein-specific monoclonal antibodies also enhanced infection. MHV-68 appeared to be predominantly latent in macrophages regardless of whether Fc receptors were engaged, but the infection was not abortive and new virus production soon overwhelmed infected cultures. Lytically infected macrophages down-regulated MHC class I-restricted antigen presentation, endocytosis and their response to LPS. CONCLUSIONS: IgG Fc receptors limit the neutralization of gamma-herpesviruses such as MHV-68.
Disciplines :
Microbiology
Author, co-author :
Rosa, Gustavo T
Gillet, Laurent  ;  Université de Liège - ULiège > Immunologie et vaccinologie
Smith, Christopher M
de Lima, Brigitte D
Stevenson, Philip G
Language :
English
Title :
IgG fc receptors provide an alternative infection route for murine gamma-herpesvirus-68.
Publication date :
2007
Journal title :
PLoS ONE
eISSN :
1932-6203
Publisher :
Public Library of Science, San Franscisco, United States - California
Volume :
2
Issue :
6
Pages :
e560
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 November 2010

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