Abstract:
:Several arenaviruses, chiefly Lassa virus (LASV) and Junin virus in West Africa and Argentina, respectively, cause hemorrhagic fever (HF) disease in humans that is associated with high morbidity and significant mortality. The investigation of antiviral strategies to combat HF arenaviruses is hampered by the requirement of biosafety level 4 (BSL-4) facilities to work with these viruses. These biosafety hurdles could be overcome by the use of recombinant single-cycle infectious arenaviruses. To explore this concept, we have developed a recombinant lymphocytic choriomeningitis virus (LCMV) (rLCMVΔGP/GFP) where we replaced the viral glycoprotein (GP) with the green fluorescent protein (GFP). We generated high titers of GP-pseudotyped rLCMVΔGP/GFP via genetic trans complementation using stable cell lines that constitutively express LCMV or LASV GPs. Replication of these GP-pseudotyped rLCMVΔGP/GFP viruses was restricted to GP-expressing cell lines. This system allowed us to rapidly and reliably characterize and quantify the neutralization activities of serum antibodies against LCMV and LASV within a BSL-2 facility. The sensitivity of the GFP-based microneutralization assay we developed was similar to that obtained with a conventionally used focus reduction neutralization (FRNT) assay. Using GP-pseudotyped rLCMVΔGP/GFP, we have also obtained evidence supporting the feasibility of this approach to identify and evaluate candidate antiviral drugs against HF arenaviruses without the need of BSL-4 laboratories.
journal_name
J Viroljournal_title
Journal of virologyauthors
Rodrigo WW,de la Torre JC,Martínez-Sobrido Ldoi
10.1128/JVI.02229-10subject
Has Abstractpub_date
2011-02-01 00:00:00pages
1684-95issue
4eissn
0022-538Xissn
1098-5514pii
JVI.02229-10journal_volume
85pub_type
杂志文章abstract::The phosphoprotein P of Borna disease virus (BDV) is an essential cofactor of the viral RNA-dependent RNA polymerase. It is preferentially phosphorylated at serine residues 26 and 28 by protein kinase C epsilon (PKCepsilon) and, to a lesser extent, at serine residues 70 and 86 by casein kinase II (CKII). To determine ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02233-06
更新日期:2007-06-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) exhibits a high level of genetic variation generated by frequent mutation and genetic recombination during reverse transcription. We have measured HIV-1 recombination rates in T cells in one round of virus replication. It was recently proposed that HIV-1 recombines far more ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.14.9337-9340.2005
更新日期:2005-07-01 00:00:00
abstract::Although several virologic and immunologic factors associated with an increased risk of perinatal human immunodeficiency virus type 1 (HIV-1) transmission have been described, the mechanism of mother-to-child transmission is still unclear. More specifically, the question of whether selective pressures influence the tr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.5.3050-3057.2003
更新日期:2003-03-01 00:00:00
abstract::Retroviruses integrate into cellular DNA nonrandomly. Lentiviruses such as human immunodeficiency virus type 1 (HIV-1) favor the bodies of active genes and gene-enriched transcriptionally active regions of chromosomes. The interaction between lentiviral integrase and the cellular protein lens epithelium-derived growth...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01148-12
更新日期:2013-01-01 00:00:00
abstract::The nuclear egress complex (NEC) is required for efficient translocation of newly synthesized herpesvirus nucleocapsids from the nucleus to the cytosol. It consists of the type II membrane protein pUL34 which interacts with pUL31 at the inner nuclear membrane (INM). To map regions within pUL34 required for nuclear mem...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00021-13
更新日期:2013-04-01 00:00:00
abstract::Human papillomavirus (HPV) is a strongly conserved DNA virus, high-risk types of which can cause cervical cancer in persistent infections. The most common type found in HPV-attributable cancer is HPV16, which can be subdivided into four lineages (A to D) with different carcinogenic properties. Studies have shown HPV16...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00844-17
更新日期:2017-09-12 00:00:00
abstract::Envelope glycoprotein E(rns) of classical swine fever virus (CSFV) has been shown to contain RNase activity and is involved in virus infection. Two short regions of amino acids in the sequence of E(rns) are responsible for RNase activity. In both regions, histidine residues appear to be essential for catalysis. They w...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.1.151-157.1998
更新日期:1998-01-01 00:00:00
abstract::Purified Friend viruses obtained from chronically infected tissue cultures were studied under the electron microscope in an effort to correlate the fine structure of the particles to their leukemogenic activity under varied experimental conditions, i.e., temperature treatments and exposure to Tween 80, amyl acetate, o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.2.4.365-375.1968
更新日期:1968-04-01 00:00:00
abstract::Embryonic stem cells are subjected to a dynamic genome regulation during development. Here we report that the ectopic lentiviral transgenes are quickly silenced in murine embryonic carcinoma P19 cells. The silencing was correlated with CpG hypermethylation in the transgene promoter. Using high-resolution sodium bisulf...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.21.13497-13508.2005
更新日期:2005-11-01 00:00:00
abstract::In order to analyze the function of VPg amplification in aphthoviruses, we have undertaken the first mutational analysis of the repetitive VPg-coding region using an improved foot-and-mouth disease virus (FMDV) cDNA clone from which infective viral RNA was synthesized. A set of VPg mutants was constructed by site-dire...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.4.2251-2260.1992
更新日期:1992-04-01 00:00:00
abstract::In some type C retroviruses, translation of the pol gene appears to require translational suppression of the proximal gag amber codon. To identify the region of the viral nucleic acid responsible for synthesis of the pol gene products, a 300-base-pair DNA fragment containing the stop codon from a type C murine virus (...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.10.3574-3580.1988
更新日期:1988-10-01 00:00:00
abstract::Human papillomavirus (HPV) infection of the genital tract is common; however, only about 10 to 15% of infections persist, and approximately 10 to 15% of these persistent infections result in cancer. Basal epidermal stem cells are the presumed target cells for HPV infection, providing a reservoir of latently infected c...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00331-18
更新日期:2018-05-14 00:00:00
abstract::By inhibiting techniques using indirect immunofluorescence tests and indirect immunoelectron microscopy, the G(Gross) soluble antigens (GSA) in the body fluids of AKR and C58 mice, which have a high incidence of spontaneous leukemia, were classified according to the known specificity of G antigens in the murine Gross ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.10.6.1208-1219.1972
更新日期:1972-12-01 00:00:00
abstract::Seneca Valley virus (SVV) is an oncolytic RNA virus belonging to the Picornaviridae family. Its nucleotide sequence is highly similar to those of members of the Cardiovirus genus. SVV is also a neuroendocrine cancer-selective oncolytic picornavirus that can be used for anticancer therapy. However, the interaction betw...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00823-17
更新日期:2017-07-27 00:00:00
abstract::The replication of the single-stranded DNA (ssDNA) of parvovirus LuIII was studied in synchronized HeLa cells. After infection of the cells in early S phase, synthesis of a replicative form (RF) DNA became detectable as early as 9 h postinfection, i.e., after display of the cellular helper function(s) indispensable fo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.17.3.841-853.1976
更新日期:1976-03-01 00:00:00
abstract::Previous experiments have demonstrated that adenovirus infection of human and mouse cells leads to an E1A-dependent activation of the DNA-binding capacity of a cellular transcription factor termed E2F. E2F binds to two sites in the adenovirus E2 early promoter which have been shown to be critical for E1A-dependent E2 ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.9.3643-3650.1989
更新日期:1989-09-01 00:00:00
abstract::The importance of neutralizing antibodies (NAbs) in protection against hepatitis C virus (HCV) remains controversial. We infused a chimpanzee with H06 immunoglobulin from a genotype 1a HCV-infected patient and challenged with genotype strains efficiently neutralized by H06 in vitro. Genotype 1a NAbs afforded no protec...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01194-15
更新日期:2015-09-01 00:00:00
abstract::Drug susceptibility and mutations in the reverse transcriptase (RT) gene were analyzed with 167 virus isolates from 38 patients treated with nevirapine, a potent nonnucleoside inhibitor of human immunodeficiency virus type 1 (HIV-1) RT. Resistant isolates emerged quickly and uniformly in all patients administered nevi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.3.1660-1666.1994
更新日期:1994-03-01 00:00:00
abstract::We describe initial genetic and structural characterizations of HK97, a temperate bacteriophage of Escherichia coli. We isolated 28 amber mutants, characterized them with respect to what phage-related structures they make, and mapped many of them to restriction fragments of genomic DNA. Sodium dodecyl sulfate-polyacry...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.6.3227-3237.1991
更新日期:1991-06-01 00:00:00
abstract::Rfv3 is an autosomal dominant gene that influences the recovery of resistant mice from Friend retrovirus (FV) infection by limiting viremia and promoting a more potent neutralizing antibody response. We previously reported that Rfv3 is encoded by Apobec3, an innate retrovirus restriction factor. However, it was recent...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01838-10
更新日期:2011-01-01 00:00:00
abstract::Vectors derived from lentiviruses provide a promising gene delivery system. We examined the in vivo gene transfer efficiency and tissue or cell tropism of a feline immunodeficiency virus (FIV)-based lentiviral vector pseudotyped with the glycoproteins from Ross River Virus (RRV). RRV glycoproteins were efficiently inc...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.18.9378-9388.2002
更新日期:2002-09-01 00:00:00
abstract:UNLABELLED:Protease is essential for retroviral replication, and protease inhibitors (PI) are important for treating HIV infection. HIV-2 exhibits intrinsic resistance to most FDA-approved HIV-1 PI, retaining clinically useful susceptibility only to lopinavir, darunavir, and saquinavir. The mechanisms for this resistan...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01772-15
更新日期:2015-11-11 00:00:00
abstract::Previous studies have established that chlorella viruses encode K(+) channels with different structural and functional properties. In the current study, we exploit the different sensitivities of these channels to Cs(+) to determine if the membrane depolarization observed during virus infection is caused by the activit...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.5.2437-2444.2006
更新日期:2006-03-01 00:00:00
abstract::Bluetongue virus (BTV), an insect-vectored emerging pathogen of both wild ruminants and livestock, has had a severe economic impact in agriculture in many parts of the world. The investigation of BTV replication and pathogenesis has been hampered by the lack of a reverse genetics system. Recovery of infectious BTV is ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00808-08
更新日期:2008-09-01 00:00:00
abstract::The initiation of RNA transcription by the virion-bound RNA transcriptase of vesicular stomatitis virus has been examined. Multiple initiation sequences have been observed, two of which have been characterized (pppApCpGp... and pppGpCp...) suggestive of a transcription process which can start at different sites along ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.11.4.487-501.1973
更新日期:1973-04-01 00:00:00
abstract::A functional preinitiation transcription complex was formed by incubating vaccinia virus early transcription factor VETF and RAP94+ RNA polymerase with an early promoter template immobilized on paramagnetic particles. A preferred order of assembly, VETF followed by RNA polymerase, was demonstrated by stepwise addition...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.9.6052-6056.1994
更新日期:1994-09-01 00:00:00
abstract::The HIV-1 Vpr protein participates in the early steps of the virus life cycle by influencing the accuracy of reverse transcription. This role of Vpr was related to the recruitment of the nuclear form of the uracil DNA glycosylase (UNG2) enzyme into virus particles, but several conflicting findings have been reported r...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.05163-11
更新日期:2012-03-01 00:00:00
abstract::Turkeys inoculated with spleen extracts from lymphoproliferative disease (LPD)-affected birds developed viremia, followed by typical LPD lesions. Electron microscopy and biochemical characterization established that the virus present in the blood of infected turkeys is a type C retrovirus. The viral particles possess ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.30.1.351-357.1979
更新日期:1979-04-01 00:00:00
abstract::The helicase-like 1a and polymerase-like 2a proteins of brome mosaic virus (BMV) are required for viral RNA replication in vivo, are present in membrane-bound viral RNA polymerase extracts, and share conservation with the many other members of the alphavirus-like superfamily. To better understand BMV RNA replication a...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.12.8908-8916.1996
更新日期:1996-12-01 00:00:00
abstract::The entry of animal viruses into cells is associated with permeabilization of the infected cells to protein toxins such as alpha-sarcin (C. Fernández-Puentes and L. Carrasco, Cell 20:769-775, 1980). This phenomenon has been referred to as "the early permeabilization by animal viruses" (L. Carrasco, Virology 113:623-62...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.5.2572-2577.1991
更新日期:1991-05-01 00:00:00