Abstract:
:Murine gammaherpesvirus 68 (MHV68) is used as a model to study gammaherpesvirus pathogenesis both in tissue culture systems and in vivo. We used a gene-trapping approach to get insight into cellular factors involved in MHV68 infection. By generating a library of gene-trapped CHO cells, we were able to isolate several clones that exhibited various degrees of resistance to MHV68-induced cytopathic effect. Clones that showed the highest degree of resistance were affected at the early stage of the viral cycle, with the vast majority of these clones being deficient for heparan sulfate (HS) expression at the cell surface. Heparan sulfate expression could be restored in all the HS-deficient clones by expression of EXT1, an enzyme that is essential for the biosynthesis of HS. Consistent with the role of HS in viral entry, HS-deficient CHO cells did not support viral internalization. Cell surface heparan sulfate proteoglycans (HSPG) are mostly composed of HS chains attached to two families of core proteins, the transmembrane syndecans and the GPI-anchored glypicans. Treatment of CHO cells with phosphatidylinositol-specific phospholipase C (PI-PLC) did not significantly affect the level of HS expression, indicating that the glypicans are not a major source of HSPG in CHO cells. By contrast, treatment of CHO cells with PMA, a drug known to accelerate syndecan shedding, resulted in a decrease in both HS expression and susceptibility to MHV68; these effects were abolished by TIMP-3, a specific inhibitor of syndecan shedding. All together, our results confirm the essential role of HS in MHV68 infection and identify the syndecans as a major source of HSPG used by the virus as coreceptors to infect CHO cells.
journal_name
Virologyjournal_title
Virologyauthors
Jarousse N,Coscoy Ldoi
10.1016/j.virol.2007.12.004subject
Has Abstractpub_date
2008-04-10 00:00:00pages
376-86issue
2eissn
0042-6822issn
1096-0341pii
S0042-6822(07)00811-2journal_volume
373pub_type
杂志文章相关文献
VIROLOGY文献大全abstract::The requirement to replicate in both vertebrate and invertebrate hosts is thought to limit the introduction of genetic changes into the genome of arboviruses. Serial passage under laboratory conditions will overcome this limitation allowing for genetic changes to be introduced and affecting the virulence of the virus ...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2011.03.030
更新日期:2011-06-20 00:00:00
abstract::IL-17-producing (Th17) and regulatory T (Treg) cells have been well established in the pathogenesis of many inflammatory diseases. To assess whether Th17 and Treg were altered in acute virus-induced myocarditis (AVMC) mice, we assessed Th17/Treg functions on different levels in AVMC. It was shown that the expression o...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2011.09.006
更新日期:2011-12-05 00:00:00
abstract::Transcriptionally targeted MLV-based ProCon vectors allow expression of the transduced gene in a promoter-specific manner by replacement of the viral U3 region with a heterologous promoter. In order to evaluate the effects of sequence elements present in ProCon vectors on transgene expression (enhanced green fluoresce...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2004.09.012
更新日期:2004-12-05 00:00:00
abstract::Two noncomplementing vaccinia virus temperature-sensitive mutants, Cts8 and Cts26, were mapped to the A3L gene, which encodes the major virion structural protein, 4b. The two ts mutants display normal patterns of gene expression, DNA replication, telomere resolution, and protein processing during infection. Morphogene...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2004.08.038
更新日期:2004-12-05 00:00:00
abstract::This study attempts to isolate and characterize West Nile virus-binding molecules on the plasma membrane of Vero and murine neuroblastoma cells that is responsible for virus entry. Pretreatment of Vero cells with proteases, glycosidases (endoglycosidase H, alpha-mannosidase), and sodium periodate strongly inhibited We...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/s0042-6822(03)00261-7
更新日期:2003-08-01 00:00:00
abstract::This study evaluates the role of antibody as an indicator of immunity to ocular challenge with herpes simplex virus (HSV). Two genotypes of mice, BALB/c or BALB/c with mu-chain knockout (muK/O; which lack functional B cells), were immunized systemically either with nonvirulent infectious virus or with a eukaryotic exp...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1999.9613
更新日期:1999-04-25 00:00:00
abstract::We present a case of sexual transmission of HIV-1 predicted to have CXCR4-tropism during male-to-male sexual exposure. Phylogenetic analyses exclude cell-free virus in the seminal plasma of the source partner and possibly point to the seminal cells as the origin of the transmission event. ...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2012.09.010
更新日期:2012-12-05 00:00:00
abstract::Dengue viruses (DENV) are the most important arboviral pathogens in tropical and subtropical regions throughout the world. DENV transmission includes both a sylvatic, enzootic cycle between nonhuman primates and arboreal mosquitoes of the genus Aedes, and an urban, endemic/epidemic cycle between Aedes aegypti, a mosqu...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2006.08.049
更新日期:2007-02-20 00:00:00
abstract::Granulin and polyhedrin proteins were purified by preparative sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis from the baculoviruses Autographa californica, Rachiplusia ou, Heliothis zea, Heliothis armigera, Trichoplusia ni, and Spodoptera frugiperda. Antisera were raised against Autographa californica...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/0042-6822(80)90128-2
更新日期:1980-05-01 00:00:00
abstract::In order to molecularly characterize rapidly and slowly replicating HIV-1 variants, molecular clones were obtained from a rapid/high virus isolate. This isolate, 4803, had only been passaged in peripheral blood mononuclear cells (PBMC) prior to cloning. Molecular cloning was done in bacteriophage lambda-dash using hig...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/0042-6822(91)90469-r
更新日期:1991-03-01 00:00:00
abstract::In this study, we confirmed the autophagy induced by porcine reproductive and respiratory syndrome virus (PRRSV) in permissive cells and investigated the role of autophagy in the replication of PRRSV. We first demonstrated that PRRSV infection significantly results in the increased double-membrane vesicles, the accumu...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2012.03.022
更新日期:2012-08-01 00:00:00
abstract::Efferocytosis, the phagocytic clearance of apoptotic cells, can provide host protection against certain types of viruses by mediating phagocytic clearance of infected cells undergoing apoptosis. It is known that HIV-1 induces apoptosis and HIV-1-infected cells are efferocytosed by macrophages, although its molecular m...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2017.12.025
更新日期:2018-02-01 00:00:00
abstract::The glycoprotein E (gE) of varicella zoster virus (VZV), encoded by ORF68, is the most abundant viral glycoprotein. In the current experiments, we demonstrated that ORF68 deletion was incompatible with recovery of infectious virus from VZV cosmids. Replacing ORF68 at a nonnative AvrII site in the genome restored infec...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.2002.1556
更新日期:2002-12-20 00:00:00
abstract::The amino-terminal domain of influenza A virus matrix protein (residues 1-164) was crystallized at pH 7 into a new crystal form in space group P1. This packing of the protein implies that M1(1-164) was monomeric in solution when it crystallized. Otherwise, the structure of the M1 fragment in the pH 7 crystals was the ...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.2000.0727
更新日期:2001-01-20 00:00:00
abstract::Progressive Multifocal Leukoencephalopathy (PML) is caused by lytic replication of JC virus (JCV) in specific cells of the central nervous system. Like other polyomaviruses, JCV encodes a large T-antigen helicase needed for replication of the viral DNA. Here, we report the development of a luciferase-based, quantitati...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2014.07.042
更新日期:2014-11-01 00:00:00
abstract::The potential role(s) of cytokines in the reduction of infectious virus and persistent viral infection in the central nervous system was examined by determining the kinetics of cytokine mRNA expression following infection with the neurotropic JHM strain of mouse hepatitis virus. Mice were infected with an antibody esc...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1997.8613
更新日期:1997-07-07 00:00:00
abstract::Hemorrhagic fever viruses are associated with rapidly progressing severe disease with high case fatality, making them of public health and biothreat importance. Effective antivirals are not available for most of the members of this diverse group of viruses. A broad spectrum strategy for antiviral development would be ...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2009.06.032
更新日期:2009-09-15 00:00:00
abstract::Due to the worldwide prevalence of antibiotic resistant strains, phages therapy has been revitalized recently. In this study, an Enterococcus faecium phage named IME-EFm5 was isolated from hospital sewage. Whole genomic sequence analysis demonstrated that IME-EFm5 belong to the Siphoviridae family, and has a double-st...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2016.02.006
更新日期:2016-05-01 00:00:00
abstract::Some satellite (sat-) and defective interfering (DI) RNAs associated with plant viruses intensify or ameliorate the symptoms of the virus. We recently demonstrated that the TCV coat protein (CP) is involved in symptom modulation by sat-RNA C. Two additional subviral RNAs have now been tested for effect of the CP on sy...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1997.8853
更新日期:1997-11-24 00:00:00
abstract::The antibody response in serum and the reproductive tract of female rabbits to a model antigen, influenza virus haemagglutinin (HA), encoded by a recombinant myxoma virus was investigated. Strong and lasting IgG antibody responses to HA were induced in serum following intradermal, intranasal, and intravaginal immunisa...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/s0042-6822(03)00324-6
更新日期:2003-08-15 00:00:00
abstract::The sequences of the 3'-noncoding regions (NCR) of 12 strains of tick-borne encephalitis (TBE) virus were analyzed and found to vary in length from 350 to approximately 750 nucleotides. The size heterogeneity is restricted to a variable region following the stop codon, whereas the most 3'-terminal 350 nucleotides form...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1995.1557
更新日期:1995-10-20 00:00:00
abstract::NS35, a basic protein encoded by gene 8 of SA11 rotavirus, possesses RNA-binding activity and is essential for genome replication. To identify conserved regions in the NS35 gene and its protein product, we determined the nucleotide sequences of the NS35 gene for the mammalian and avian rotaviruses Wa, DS1, SA11 (Patto...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1993.1059
更新日期:1993-02-01 00:00:00
abstract::The requirement for the herpes simplex virus type 1 (HSV-1) protein Vmw65 (VP16) for activation of immediate early (IE) gene expression was examined in synchronized HeLa cells. Analyses of IE RNA levels were conducted during infection with a viral Vmw65 mutant, in1814. The results revealed an increased requirement for...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/0042-6822(92)90695-l
更新日期:1992-07-01 00:00:00
abstract::Lassa virus RNA isolated from purified virus particles was polyadenylated and reverse transcripts were cloned into the PstI site of plasmid pUC9. Clones containing sequences of the smaller (S) segment of the Lassa virus genome were identified by hybridization with purified S RNA. They were characterized by their abili...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/0042-6822(85)90278-8
更新日期:1985-07-30 00:00:00
abstract::Foot-and-mouth-disease (FMD) remains the most infectious livestock disease worldwide. Although commercially available inactivated or adenovirus-vectored-vaccines (Ad5-FMD) are effective, they require 5-7 days to induce protection. Therefore, new control strategies that stimulate rapid immune responses are needed. Expr...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2016.09.027
更新日期:2016-12-01 00:00:00
abstract::Despite significant contributions of monocytes to HIV persistence, the genomic basis of HIV-infection of monocytes and its association with plasma viremia remain elusive. To understand HIV interactions with monocytes during disease progression, monocytic transcriptomes from long-term non-progressors (LTNP), HIV+ patie...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2012.10.026
更新日期:2013-01-20 00:00:00
abstract::Bombyx mori nucleopolyhedrovirus (BmNPV) orf5 (Bm5) is a core gene of lepidopteran baculoviruses and encodes the protein with the conserved amino acid residues (DUF3627) in its C-terminus. Here, we found that Bm5 disruption resulted in lower titers of budded viruses and fewer numbers of occlusion bodies (OBs) in B. mo...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2016.08.032
更新日期:2016-11-01 00:00:00
abstract::Syncytia formation has been considered important for cell-to-cell spread and pathogenesis of many viruses. As a syncytium forms, individual nuclei often congregate together, allowing close contact of nuclear membranes and possibly fusion to occur. However, there is currently no reported evidence of nuclear membrane fu...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2017.09.002
更新日期:2017-12-01 00:00:00
abstract::Cultured primary peripheral blood mononuclear cells (PBMC) represent a potentially physiologic in vitro model of HIV-1 infection, but assessment of antibody-mediated HIV-1 neutralization using PBMC has been hindered by donor variability and lack of a sustainable individual PBMC source. To advance this model for HIV va...
journal_title:Virology
pub_type: 杂志文章
doi:10.1016/j.virol.2013.09.014
更新日期:2013-12-01 00:00:00
abstract::To study the possible role of immune selection in the in vivo generation of pathogenic recombinant murine leukemia viruses (MuLV), we have constructed recombinant vaccinia viruses (rVV) expressing the envelope genes of three MuLV: AKR623, MCF247, and MCF13. rVV expressing either AKR623 or MCF247 env could prime H-2b m...
journal_title:Virology
pub_type: 杂志文章
doi:10.1006/viro.1994.1370
更新日期:1994-07-01 00:00:00