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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
3
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pubmed:dateCreated |
2011-1-13
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pubmed:abstractText |
Rhesus macaques are naturally infected with a gammaherpesvirus which is in the same lymphocryptovirus (LCV) genus as and closely related to Epstein-Barr virus (EBV). The rhesus macaque LCV (rhLCV) contains a repertoire of genes identical to that of EBV, and experimental rhLCV infection of naive rhesus macaques accurately models acute and persistent EBV infection of humans. We cloned the LCL8664 rhLCV strain as a bacterial artificial chromosome to create recombinant rhLCV for investigation in this animal model system. A recombinant rhLCV (clone 16 rhLCV) carrying a mutation in the putative immune evasion gene rhBARF1 was created along with a rescued wild-type (rWT) rhLCV in which the rhBARF1 open reading frame (ORF) was repaired. The rWT rhLCV molecular clone demonstrated viral replication and B-cell immortalization properties comparable to those of the naturally derived LCL8664 rhLCV. Qualitatively, clone 16 rhLCV carrying a mutated rhBARF1 was competent for viral replication and B-cell immortalization, but quantitative assays showed that clone 16 rhLCV immortalized B cells less efficiently than LCL8664 and rWT rhLCV. Functional studies showed that rhBARF1 could block CSF-1 cytokine signaling as well as EBV BARF1, whereas the truncated rhBARF1 from clone 16 rhLCV was a loss-of-function mutant. These recombinant rhLCV can be used in the rhesus macaque animal model system to better understand how a putative viral immune evasion gene contributes to the pathogenesis of acute and persistent EBV infection. The development of a genetic system for making recombinant rhLCV constitutes a major advance in the study of EBV pathogenesis in the rhesus macaque animal model.
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pubmed:grant |
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
1098-5514
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
85
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1330-9
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pubmed:dateRevised |
2011-8-3
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pubmed:meshHeading |
pubmed-meshheading:21084476-Animals,
pubmed-meshheading:21084476-B-Lymphocytes,
pubmed-meshheading:21084476-Cell Line,
pubmed-meshheading:21084476-Cell Transformation, Viral,
pubmed-meshheading:21084476-Chromosomes, Artificial, Bacterial,
pubmed-meshheading:21084476-Cloning, Molecular,
pubmed-meshheading:21084476-Humans,
pubmed-meshheading:21084476-Immune Evasion,
pubmed-meshheading:21084476-Lymphocryptovirus,
pubmed-meshheading:21084476-Macaca mulatta,
pubmed-meshheading:21084476-Mutation,
pubmed-meshheading:21084476-Viral Proteins,
pubmed-meshheading:21084476-Virulence Factors,
pubmed-meshheading:21084476-Virus Replication
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pubmed:year |
2011
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