Abstract:
:Antigens derived from host cells are detectable in the envelope of human immunodeficiency virus type 1 (HIV-1) and result in a distinctive viral phenotype reflecting that of the host cell. An immunomagnetic capture assay targeting discriminatory host proteins was developed to differentiate between HIV-1 derived from macrophages and lymphocytes. HIV-1 propagated in macrophages or lymphocytes in vitro was selectively captured by monoclonal antibodies directed against the virally incorporated cell-type-specific host markers CD36 (macrophages) and CD26 (lymphocytes). Furthermore, by targeting these markers, virus of defined cellular origin was selectively captured from a mixed pool of in vitro-propagated viruses. This technique was further refined in order to determine the impact of opportunistic infection on HIV-1 expression from these cellular compartments in vivo. Analysis of cell-free virus purified from plasma of patients with HIV-1 infection suggested that in those with an opportunistic infection, viral replication occurred in activated lymphocytes. Interestingly, there was also significant replication in activated macrophages in those patients with untreated pulmonary tuberculosis. Thus, in addition to lymphocytes, the macrophage cellular pool may serve as an important source of cell-free HIV-1 in patients with opportunistic infections that lead to marked macrophage activation. This novel viral capture technique may allow researchers to address a wide range of important questions regarding virus-host dynamics.
journal_name
J Viroljournal_title
Journal of virologyauthors
Lawn SD,Roberts BD,Griffin GE,Folks TM,Butera STsubject
Has Abstractpub_date
2000-01-01 00:00:00pages
139-45issue
1eissn
0022-538Xissn
1098-5514journal_volume
74pub_type
杂志文章abstract::Regulatory elements interacting with DNA-binding proteins have been investigated in the promoter sequence of the early PE38 gene in the Autographa californica nuclear polyhedrosis virus (AcNPV). A GATA motif located 50 nucleotides upstream of the PE38 transcriptional start site is recognized differentially in the cour...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.6.3494-3503.1992
更新日期:1992-06-01 00:00:00
abstract::We have examined the transcriptional utilization of the human immunodeficiency virus type 1 (HIV-1) long terminal repeat (LTR) under differentiating conditions by using the embryonal carcinoma cell line NTERA-2. NTERA-2 cells undergo two distinct pathways of terminal differentiation, to a neuronal phenotype in respons...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.4.2268-2273.1992
更新日期:1992-04-01 00:00:00
abstract::Foamy viruses (FVs) are the least known retroviruses commonly found in primates, cats, horses, and cattle. Although FVs are considered apathogenic, simian and feline FVs have been shown to be associated with some transient health abnormalities in animal models. Currently, data regarding the course of infection with bo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02447-12
更新日期:2013-03-01 00:00:00
abstract::Norovirus (NoV) infections are a leading cause of gastroenteritis. The humoral immune response plays an important role in the control of NoV, and recent studies have identified neutralizing antibodies that bind the capsid protein VP1 to block viral infection. Here, we utilize a NoV GI.1 Jun-Fos-assisted phage display ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01495-20
更新日期:2020-12-09 00:00:00
abstract::A poliovirus-specific polyuridylic acid [poly(U)] polymerase that copies a polyadenylic acid template complexed to an oligouridylic acid primer was isolated from the membrane fraction of infected HeLa cells and was found to sediment at 4 to 5S on a linear 5 to 20% glycerol gradient. When the poly(U) polymerase was iso...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.29.1.352-360.1979
更新日期:1979-01-01 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) R5 isolates that predominantly use CCR5 as a coreceptor are frequently described as macrophage tropic. Here, we compare macrophage tropism conferred by HIV-1 R5 envelopes that were derived directly by PCR from patient tissue. This approach avoids potentially selective cultur...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02328-05
更新日期:2006-07-01 00:00:00
abstract::Hepatitis delta virus (HDV) replicates by RNA-dependent RNA synthesis according to a double rolling circle model. Also synthesized during replication is a 0.8-kb, polyadenylated mRNA encoding the hepatitis delta antigen (HDAg). It has been proposed that this mRNA species represents the initial product of HDV RNA repli...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.7.5449-5456.1998
更新日期:1998-07-01 00:00:00
abstract::The Vif protein of human immunodeficiency virus type 1 (HIV-1) is important for virion infectivity. Previous studies have shown that vif-defective virions exhibit structural abnormalities in the virus core and are defective in the ability to complete proviral DNA synthesis in acutely infected cells. We developed novel...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.74.23.11055-11066.2000
更新日期:2000-12-01 00:00:00
abstract::The state of intracellular viral DNA in cells infected with channel catfish virus has been studied by the Hirt selective extraction procedure and by restriction endonuclease digestion. The sedimentation properties and restriction patterns of viral DNA in the Hirt supernatant fraction indicate that the majority, if not...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.46.2.405-412.1983
更新日期:1983-05-01 00:00:00
abstract::The parechoviruses differ in many biological properties from other picornaviruses, and their replication strategy is largely unknown. In order to identify the viral RNA replication complex in human parechovirus type 1 (HPEV-1)-infected cells, we located viral protein and RNA in correlation to virus-induced membrane al...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.15.8512-8523.2003
更新日期:2003-08-01 00:00:00
abstract::The role of the Autographa californica multiple nucleopolyhedrovirus (AcMNPV) immediate-early protein IE0 in the baculoviral infection is not clear. In this study, we constructed the recombinant virus vAcDeltaie0 null for ie0 expression by targeted mutagenesis replacing exon0 with the cat gene. We found that vAcDeltai...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.15.10077-10082.2005
更新日期:2005-08-01 00:00:00
abstract::CD81 has been described as a putative receptor for hepatitis C virus (HCV); however, its role in HCV cell entry has not been characterized due to the lack of an efficient cell culture system. We have examined the role of CD81 in HCV glycoprotein-dependent entry by using a recently developed retroviral pseudotyping sys...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.78.3.1448-1455.2004
更新日期:2004-02-01 00:00:00
abstract::Duck embryo fibroblast (DEF) and chicken embryo fibroblast (CEF) cultures infected with Marek's disease virus were studied by combined fluorescent antibody and electron microscopy techniques. In both DEF and CEF cultures, cells containing immunofluorescent (IF) antigen also contained herpesvirus particles; conversely,...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.5.1.79-90.1970
更新日期:1970-01-01 00:00:00
abstract::Transfection has been found and characterized in pneumococcus. For replicating omega3 phage DNA extracted from infected cells, transfection was relatively efficient and rose linearly with DNA concentration and quadratically with time, according to T(T - 3.5) min(2). For mature DNA extracted from phage particles, trans...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.25.1.60-72.1978
更新日期:1978-01-01 00:00:00
abstract::Butyrate is an abundant metabolite produced by gut microbiota. While butyrate is a known histone deacetylase inhibitor that activates expression of many genes involved in immune system pathways, its effects on virus infections and on the antiviral type I interferon (IFN) response have not been adequately investigated....
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00326-20
更新日期:2020-07-30 00:00:00
abstract::HIV circumvents HLA class I-restricted CD8+ T-cell responses through selection of escape mutations that leave characteristic mutational "footprints," also known as HLA-associated polymorphisms (HAPs), on HIV sequences at the population level. While many HLA footprints are universal across HIV subtypes and human popula...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01128-17
更新日期:2018-01-02 00:00:00
abstract::NK cells are key effectors of innate immunity and host survival during cytomegalovirus (CMV) infection. Innate murine CMV (MCMV) resistance in MA/My mice requires Ly49H/m157-independent H-2k-linked NK cell control. Here we show that replacement of MA/My H-2k with C57L H-2b susceptibility genes led to a remarkable loss...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00997-06
更新日期:2007-01-01 00:00:00
abstract:UNLABELLED:The latent infection of Epstein-Barr virus (EBV) is associated with 1% of human cancer incidence. Poly(ADP-ribosyl)ation (PARylation) is a posttranslational modification catalyzed by poly(ADP-ribose) polymerases (PARPs) that mediate EBV replication during latency. In this study, we detail the mechanisms that...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01180-16
更新日期:2016-09-12 00:00:00
abstract::Resistance to ectromelia (mousepox) virus-induced mortality was examined in crosses between susceptible DBA/2J, A/J, and BALB/cByJ mice and resistant C57BL/6J and AKR/J mice. Depending on the cross, resistance to mousepox virus was shown to be determined by one or more independently assorting autosomal loci with domin...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.55.3.890-891.1985
更新日期:1985-09-01 00:00:00
abstract::HIV-1 circulates within an infected host as a genetically heterogeneous viral population. Viral intrahost diversity is shaped by substitutional evolution and recombination. Although many studies have speculated that recombination could have a significant impact on viral phenotype, this has never been definitively demo...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00131-11
更新日期:2011-06-01 00:00:00
abstract::Envelope glycoprotein E1 (gp51 to gp54) is the most antigenic protein of hog cholera virus or classical swine fever virus (CSFV). Four antigenic domains, A to D, have been mapped on E1 with a panel of monoclonal antibodies (MAbs) raised against CSFV strain Brescia. The boundaries of these domains have been established...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.6.3934-3942.1994
更新日期:1994-06-01 00:00:00
abstract::Natural killer (NK) cells serve as a crucial first-line defense against tumors and virus-infected cells. We previously showed that lysis of influenza virus (IV)-infected cells is mediated by the interaction between the NK receptor, NKp46, and the IV hemagglutinin (HA) type 1 expressed by the infected cells. This inter...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01815-09
更新日期:2010-04-01 00:00:00
abstract::Kaposi's sarcoma-associated herpesvirus (KSHV) (also called human herpesvirus 8) is a novel gammaherpesvirus strongly implicated in the pathogenesis of Kaposi's sarcoma. Although virions can be produced in high yield from latently infected B-cell lines treated with phorbol esters, little is known about the infectivity...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.6.5182-5188.1998
更新日期:1998-06-01 00:00:00
abstract::Nipah virus (NiV) and Hendra virus (HeV) are emerging zoonotic viruses and the causative agents of severe respiratory disease and encephalitis in humans. Little is known about the mechanisms that govern the development of respiratory and neurological disease. Using a hamster model of lethal NiV and HeV infection, we d...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00473-11
更新日期:2011-08-01 00:00:00
abstract::The 5'-terminal nucleotide sequence from positions 50 to 130 of vesicular stomatitis virus RNA was determined indirectly by using a defective interfering particle RNA which contains covalently linked genomic minus and antigenomic plus sense RNAs. The last 18 nucleotides of the L gene coding for in the viral polymerase...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.34.2.550-559.1980
更新日期:1980-05-01 00:00:00
abstract:UNLABELLED:The four serotypes of dengue virus (DENV) cause the most important and rapidly emerging arboviral diseases in humans. The recent phase 2b and 3 studies of a tetravalent dengue vaccine reported a moderate efficacy despite the presence of neutralizing antibodies, highlighting the need for a better understandin...
journal_title:Journal of virology
pub_type: 杂志文章,随机对照试验
doi:10.1128/JVI.00273-15
更新日期:2015-07-01 00:00:00
abstract::Infectious pancreatic necrosis virus (IPNV) is a bisegmented, double-stranded RNA (dsRNA) virus of the Birnaviridae family that causes widespread disease in salmonids. Its two genomic segments are encapsulated together with the viral RNA-dependent RNA polymerase, VP1, and the assumed internal protein, VP3, in a single...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02831-06
更新日期:2007-06-01 00:00:00
abstract:UNLABELLED:Human cytomegalovirus (HCMV) is a major cause of morbidity and mortality in transplant patients and is the leading viral cause of birth defects after congenital infection. HCMV infection relies on the recognition of cell-specific receptors by one of the viral envelope glycoprotein complexes. Either the gH/gL...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02517-15
更新日期:2016-04-29 00:00:00
abstract::Human immunodeficiency virus type 1 (HIV-1) infection of CD4-positive lymphocytes is accompanied by acute cytopathic effects, i.e., syncytium formation and single-cell lysis. Syncytium formation involves cell-cell fusion mediated by viral envelope glycoproteins on the surface of infected cells and by CD4 glycoproteins...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.3.1340-1354.1996
更新日期:1996-03-01 00:00:00
abstract::We present data that retroviral gene expression in early hematopoietic cells is subjected to transcriptional controls similar to those previously described for embryonic stem cells. Transient transfection experiments revealed that both the viral enhancer region in the U3 region of the long terminal repeat as well as a...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.12.7541-7547.1995
更新日期:1995-12-01 00:00:00