Abstract:
:Cytotoxic CD8+ T lymphocytes (CTL) directed against the matrix protein pp65 are major effectors in controlling infection against human cytomegalovirus (HCMV), a persistent virus of the Betaherpesvirus family. We previously suggested that cross-presentation of pp65 by nonpermissive dendritic cells (DCs) could overcome viral strategies that interfere with activation of CTL (G. Arrode, C. Boccaccio, J. Lule, S. Allart, N. Moinard, J. Abastado, A. Alam, and C. Davrinche, J. Virol. 74:10018-10024, 2000). It is well established that mature DCs are very potent in initiating T-cell-mediated immunity. Consequently, the DC maturation process is a key step targeted by viruses in order to avoid an immune response. Here, we report that immature DCs maintained in coculture with infected human (MRC5) fibroblasts acquired pp65 from early-infected cells for cross-presentation to specific HLA-A2-restricted CTL. In contrast, coculture of DCs in the presence of late-infected cells decreased their capacity to stimulate CTL. Analyses of DC maturation after either coculture with infected MRC5 cells or incubation with infected-cell-conditioned medium revealed that acquisition of a mature phenotype was a prerequisite for efficient stimulation of CTL and that soluble factors secreted by infected cells were responsible for both up and down regulation of CD83 expression on DCs. We identified transforming growth factor beta1 secreted by late HCMV-infected cells as one of these down regulating mediators. These findings suggest that HCMV has devised another means to compromise immune surveillance mechanisms. Together, our data indicate that recognition of HCMV-infected cells by DCs has to occur early after infection to avoid immune evasion and to allow generation of anti-HCMV CTL.
journal_name
J Viroljournal_title
Journal of virologyauthors
Arrode G,Boccaccio C,Abastado JP,Davrinche Cdoi
10.1128/jvi.76.1.142-150.2002subject
Has Abstractpub_date
2002-01-01 00:00:00pages
142-50issue
1eissn
0022-538Xissn
1098-5514journal_volume
76pub_type
杂志文章abstract::Monoclonal antibodies (MAb) reactive with the glycoprotein of vesicular stomatitis virus (VSV) serotypes Indiana (VSV-Ind) and New Jersey (VSV-NJ) were used to protect mice against lethal infection. MAb which reacted with a number of distinct epitopes and which could neutralize the virus in vitro could also protect ag...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.51.1.208-214.1984
更新日期:1984-07-01 00:00:00
abstract::Simian virus 40 (SV40) infection of human diploid cells failed to cause an enhanced production of thymidine kinase during the first 10 days after infection. Thymidine kinase activities from extracts of SV40-transformed cultures (human or simian) were considerably higher than the activity levels in extracts from the no...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.1.5.912-919.1967
更新日期:1967-10-01 00:00:00
abstract::We previously described a human immunodeficiency virus type 1 (HIV-1) envelope mutant that introduces a disulfide bridge between the gp120 surface proteins and gp41 transmembrane proteins (J. M. Binley, R. W. Sanders, B. Clas, N. Schuelke, A. Master, Y. Guo, F. Kajumo, D. J. Anselma, P. J. Maddon, W. C. Olson, and J. ...
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pub_type: 杂志文章
doi:10.1128/jvi.77.10.5678-5684.2003
更新日期:2003-05-01 00:00:00
abstract::Human immunodeficiency virus type 1 contains a transmembrane glycoprotein with an unusually long cytoplasmic domain. To determine the role of this domain in virus replication, a series of single nucleotide changes that result in the insertion of premature termination codons throughout the cytoplasmic domain has been c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.11.6616-6625.1992
更新日期:1992-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01602-09
更新日期:2010-01-01 00:00:00
abstract:UNLABELLED:Reactivation of human cytomegalovirus (HCMV) is a significant cause of disease and death in immunocompromised patients, underscoring the need to understand how latency is controlled. Here we demonstrate that HCMV has evolved to utilize cellular microRNAs (miRNAs) in cells that promote latency to regulate exp...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00481-14
更新日期:2014-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02008-08
更新日期:2009-01-01 00:00:00
abstract::We have generated four mouse monoclonal antibodies (MAbs) to bovine papillomavirus virions that bound type-specific, adjacent, and conformationally dependent epitopes on the L1 major capsid protein. All four MAbs were neutralizing at ratios of 1 MAb molecule per 5 to 25 L1 molecules, but only three effectively blocked...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.11.7570-7574.1994
更新日期:1994-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.12.6073-6082.2002
更新日期:2002-06-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00572-06
更新日期:2006-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.1.160-167.1976
更新日期:1975-01-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.55.3.560-566.1985
更新日期:1985-09-01 00:00:00
abstract::Rhesus lymphocryptovirus (rLCV) and Epstein-Barr virus (EBV) are closely related gammaherpesviruses that infect and cause disease in rhesus monkeys and humans, respectively. Thus, rLCV is an important model system for EBV pathogenesis. Both rLCV and EBV express microRNAs (miRNAs), several conserved in sequence and gen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00110-10
更新日期:2010-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.8133-8137.1996
更新日期:1996-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.51.2.515-521.1984
更新日期:1984-08-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.4.3185-3195.1998
更新日期:1998-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.9.5378-5388.2003
更新日期:2003-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2019-02-05 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.43.3.935-942.1982
更新日期:1982-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.73.7.5981-5993.1999
更新日期:1999-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.4.2098-2101.1991
更新日期:1991-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.7.3928-3931.1991
更新日期:1991-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2018-02-12 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2014-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.5.2118-2126.2006
更新日期:2006-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:2003-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:2011-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.12.5194-5200.1989
更新日期:1989-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.7878-7884.1996
更新日期:1996-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.5.2225-2233.2006
更新日期:2006-03-01 00:00:00