Characteristics of fusion of respiratory syncytial virus with HEp-2 cells as measured by R18 fluorescence dequenching assay.

Abstract:

:The characteristics of fusion of respiratory syncytial virus (RSV) with HEp-2 cells were studied by the R18 fluorescence dequenching assay of membrane fusion. A gradual increase in fluorescence intensity indicative of virion-cell fusion was observed when R18-labeled RSV was incubated with HEp-2 cells. Approximately 35% dequenching of the probe fluorescence was observed in 1 h at 37 degrees C. Fusion showed a temperature dependence, with significant dequenching occurring above 18 degrees C. The dequenching was also dependent on the relative concentration of target membrane. Thus, increasing the concentration of target membrane resulted in increased levels of dequenching. In addition, viral glycoproteins were shown to be involved in this interaction, since dequenching was significantly reduced by pretreatment of labeled virus at 70 degrees C for 5 min or by trypsinization of R18-labeled virions prior to incubation with HEp-2 cells at 37 degrees C. The fusion of RSV with HEp-2 cells was unaffected over a pH range of 5.5 to 8.5, with some increase seen at lower pH values. Treatment of HEp-2 cells with ammonium chloride (20 and 10 mM), a lysosomotropic agent, during early stages of infection did not inhibit syncytium formation or progeny virion production by RSV. At the same concentrations of ammonium chloride, the production of vesicular stomatitis virus was reduced approximately 4 log10 units. These results suggest that fusion of the virus with the cell surface plasma membrane is the principal route of entry.

journal_name

J Virol

journal_title

Journal of virology

authors

Srinivasakumar N,Ogra PL,Flanagan TD

doi

10.1128/JVI.65.8.4063-4069.1991

subject

Has Abstract

pub_date

1991-08-01 00:00:00

pages

4063-9

issue

8

eissn

0022-538X

issn

1098-5514

journal_volume

65

pub_type

杂志文章
  • Human T-cell leukemia virus type 2 antisense viral protein 2 is dispensable for in vitro immortalization but functions to repress early virus replication in vivo.

    abstract::Human T-cell leukemia virus type 1 (HTLV-1) and HTLV-2 are closely related but pathogenically distinct human retroviruses. The antisense strand of the HTLV-1 genome encodes HTLV-1 basic leucine zipper (b-ZIP) protein (HBZ), a protein that inhibits Tax-mediated viral transcription, enhances T-cell proliferation, and pr...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00717-12

    authors: Yin H,Kannian P,Dissinger N,Haines R,Niewiesk S,Green PL

    更新日期:2012-08-01 00:00:00

  • Fatal pancreatitis in simian immunodeficiency virus SIV(mac251)-infected macaques treated with 2',3'-dideoxyinosine and stavudine following cytotoxic-T-lymphocyte-associated antigen 4 and indoleamine 2,3-dioxygenase blockade.

    abstract::Human immunodeficiency virus (HIV) infection is associated with immune activation, CD4⁺-T-cell loss, and a progressive decline of immune functions. Antiretroviral therapy (ART) only partially reverses HIV-associated immune dysfunction, suggesting that approaches that target immune activation and improve virus-specific...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.05609-11

    authors: Vaccari M,Boasso A,Fenizia C,Fuchs D,Hryniewicz A,Morgan T,Weiss D,Doster MN,Heraud JM,Shearer GM,Franchini G

    更新日期:2012-01-01 00:00:00

  • A survey of the interactome of Kaposi's sarcoma-associated herpesvirus ORF45 revealed its binding to viral ORF33 and cellular USP7, resulting in stabilization of ORF33 that is required for production of progeny viruses.

    abstract:UNLABELLED:The ORF45 protein of Kaposi's sarcoma-associated herpesvirus (KSHV) is a gammaherpesvirus-specific immediate-early tegument protein. Our previous studies have revealed its crucial roles in both early and late stages of KSHV infection. In this study, we surveyed the interactome of ORF45 using a panel of monoc...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.02925-14

    authors: Gillen J,Li W,Liang Q,Avey D,Wu J,Wu F,Myoung J,Zhu F

    更新日期:2015-05-01 00:00:00

  • Identification of amino acid residues in CD81 critical for interaction with hepatitis C virus envelope glycoprotein E2.

    abstract::Human CD81 has been previously identified as the putative receptor for the hepatitis C virus envelope glycoprotein E2. The large extracellular loop (LEL) of human CD81 differs in four amino acid residues from that of the African green monkey (AGM), which does not bind E2. We mutated each of the four positions in human...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.74.8.3642-3649.2000

    authors: Higginbottom A,Quinn ER,Kuo CC,Flint M,Wilson LH,Bianchi E,Nicosia A,Monk PN,McKeating JA,Levy S

    更新日期:2000-04-01 00:00:00

  • Apoptosis induced by infection of primary brain cultures with diverse human immunodeficiency virus type 1 isolates: evidence for a role of the envelope.

    abstract::Apoptosis of neurons and astrocytes is induced by human immunodeficiency type 1 (HIV-1) infection in vitro and has been demonstrated in brain tissue from patients with AIDS. We analyzed a panel of diverse HIV-1 primary isolates for the ability to replicate and induce neuronal and astrocyte apoptosis in primary human b...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.73.2.897-906.1999

    authors: Ohagen A,Ghosh S,He J,Huang K,Chen Y,Yuan M,Osathanondh R,Gartner S,Shi B,Shaw G,Gabuzda D

    更新日期:1999-02-01 00:00:00

  • MB78, a virulent bacteriophage of Salmonella typhimurium.

    abstract::The isolation and some properties of a virulent bacteriophage of Salmonella typhimurium, MB78, which is morphologically, serologically, and physiologically unrelated to P22, are reported. The phage has a noncontractile long tail with partite ends. It cannot multiply in minimal medium in the presence of citrate. MB78-i...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.41.3.1038-1043.1982

    authors: Joshi A,Siddiqi JZ,Rao GR,Chakravorty M

    更新日期:1982-03-01 00:00:00

  • The S Gene Is Necessary but Not Sufficient for the Virulence of Porcine Epidemic Diarrhea Virus Novel Variant Strain BJ2011C.

    abstract::The recently emerged highly virulent variants of porcine epidemic diarrhea virus (PEDV) have caused colossal economic losses to the worldwide swine industry. In this study, we investigated the viral virulence determinants by constructing a series of chimeric mutants between the highly virulent strain BJ2011C and the a...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00603-18

    authors: Wang D,Ge X,Chen D,Li J,Cai Y,Deng J,Zhou L,Guo X,Han J,Yang H

    更新日期:2018-06-13 00:00:00

  • Influenza virus hemagglutinin and neuraminidase glycoproteins stimulate the membrane association of the matrix protein.

    abstract::We have analyzed the mechanism by which the matrix (M1) protein associates with cellular membranes during influenza A virus assembly. Interaction of the M1 protein with the viral hemagglutinin (HA) or neuraminidase (NA) glycoprotein was extensively analyzed by using wild-type and transfectant influenza viruses as well...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.70.10.6653-6657.1996

    authors: Enami M,Enami K

    更新日期:1996-10-01 00:00:00

  • Mechanism of reduced T-cell effector functions and class-switched antibody responses to herpes simplex virus type 2 in the absence of B7 costimulation.

    abstract::T-cell costimulation molecules B7-1 and B7-2 play an important role in activation of T cells to cytolytic effector function and production of cytokines. Interaction with B7 also causes T cells to upregulate surface molecules, such as CD40L, that effectively stimulate antibody responses in conjunction with cytokines. W...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.4.2426-2435.2003

    authors: Thebeau LG,Morrison LA

    更新日期:2003-02-01 00:00:00

  • Irreversible effects of cycloheximide during the early period of vaccinia virus replicaon.

    abstract::The presence of cycloheximide, an inhibitor of protein synthesis, during the period 30 to 60 min after vaccinia infection produced an irreversible block in virus replication. In contrast (i) cycloheximide given at earlier or later times, even for prolonged periods, did not prevent continuation of the infectious cycle ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.5.2.99-108.1970

    authors: Mss B,Filler R

    更新日期:1970-02-01 00:00:00

  • Genetic characterization of the vaccinia virus DNA polymerase: cytosine arabinoside resistance requires a variable lesion conferring phosphonoacetate resistance in conjunction with an invariant mutation localized to the 3'-5' exonuclease domain.

    abstract::In this report, we describe the isolation, molecular genetic mapping, and phenotypic characterization of vaccinia virus mutants resistant to cytosine arabinoside (araC) and phosphonoacetic acid (PAA). At 37 degrees C, 8 microM araC was found to prevent macroscopic plaque formation by wild-type virus and to cause a 10(...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.67.7.4323-4336.1993

    authors: Taddie JA,Traktman P

    更新日期:1993-07-01 00:00:00

  • Interleukin-22 (IL-22) production by pulmonary Natural Killer cells and the potential role of IL-22 during primary influenza virus infection.

    abstract::We set out to test the hypothesis that interleukin-22 (IL-22), a cytokine crucial for epithelial cell homeostasis and recovery from tissue injury, would be protective during influenza virus infection. Recent studies have identified phenotypically and functionally unique intestinal NK cells capable of producing the cyt...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00187-10

    authors: Guo H,Topham DJ

    更新日期:2010-08-01 00:00:00

  • Integrins alpha2beta1 and alpha4beta1 can mediate SA11 rotavirus attachment and entry into cells.

    abstract::Most mammalian rotaviruses contain tripeptide amino acid sequences in outer capsid proteins VP4 and VP7 which have been shown to act as ligands for integrins alpha2beta1 and alpha4beta1. Peptides containing these sequences and monoclonal antibodies directed to these integrins block rotavirus infection of cells. Here w...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.74.1.228-236.2000

    authors: Hewish MJ,Takada Y,Coulson BS

    更新日期:2000-01-01 00:00:00

  • Intermonomer Interactions in Hemagglutinin Subunits HA1 and HA2 Affecting Hemagglutinin Stability and Influenza Virus Infectivity.

    abstract:UNLABELLED:Influenza virus hemagglutinin (HA) mediates virus entry by binding to cell surface receptors and fusing the viral and endosomal membranes following uptake by endocytosis. The acidic environment of endosomes triggers a large-scale conformational change in the transmembrane subunit of HA (HA2) involving a loop...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00939-15

    authors: Wang W,DeFeo CJ,Alvarado-Facundo E,Vassell R,Weiss CD

    更新日期:2015-10-01 00:00:00

  • PC61 (anti-CD25) treatment inhibits influenza A virus-expanded regulatory T cells and severe lung pathology during a subsequent heterologous lymphocytic choriomeningitis virus infection.

    abstract::Prior immunity to influenza A virus (IAV) in mice changes the outcome to a subsequent lymphocytic choriomeningitis virus (LCMV) infection and can result in severe lung pathology, similar to that observed in patients that died of the 1918 H1N1 pandemic. This pathology is induced by IAV-specific memory CD8(+) T cells cr...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00936-13

    authors: Kraft AR,Wlodarczyk MF,Kenney LL,Selin LK

    更新日期:2013-12-01 00:00:00

  • Reversal of human cytomegalovirus major immediate-early enhancer/promoter silencing in quiescently infected cells via the cyclic AMP signaling pathway.

    abstract::The human cytomegalovirus (HCMV) major immediate-early (MIE) enhancer contains five functional cyclic AMP (cAMP) response elements (CRE). Because the CRE in their native context do not contribute appreciably to MIE enhancer/promoter activity in lytically infected human fibroblasts and NTera2 (NT2)-derived neurons, we ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01524-06

    authors: Keller MJ,Wu AW,Andrews JI,McGonagill PW,Tibesar EE,Meier JL

    更新日期:2007-06-01 00:00:00

  • Assembly of vaccinia virus: effects of rifampin on the intracellular distribution of viral protein p65.

    abstract::The cytoplasmic assembly of vaccinia virus is reversibly blocked by the antibiotic rifampin, leading to the accumulation of partially membrane-delineated rifampin bodies in infected cells. Rifampin-resistant vaccinia virus mutants have point mutations in the D13L gene, which is controlled by a late promoter and expres...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.68.2.1103-1114.1994

    authors: Sodeik B,Griffiths G,Ericsson M,Moss B,Doms RW

    更新日期:1994-02-01 00:00:00

  • Persistence and fitness of multidrug-resistant human immunodeficiency virus type 1 acquired in primary infection.

    abstract::This study examines the persistence and fitness of multidrug-resistant (MDR) viruses acquired during primary human immunodeficiency virus infection (PHI). In four individuals, MDR infections persisted over the entire study period, ranging from 36 weeks to 5 years, in the absence of antiretroviral therapy. In stark con...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.76.4.1753-1761.2002

    authors: Brenner BG,Routy JP,Petrella M,Moisi D,Oliveira M,Detorio M,Spira B,Essabag V,Conway B,Lalonde R,Sekaly RP,Wainberg MA

    更新日期:2002-02-01 00:00:00

  • Nef-induced CD4 endocytosis in human immunodeficiency virus type 1 host cells: role of p56lck kinase.

    abstract::Human immunodeficiency virus type 1 (HIV-1) Nef interferes with the endocytic machinery to modulate the cell surface expression of CD4. However, the basal trafficking of CD4 is governed by different rules in the target cells of HIV-1: whereas CD4 is rapidly internalized from the cell surface in myeloid cells, CD4 is s...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01648-08

    authors: Laguette N,Brégnard C,Bouchet J,Benmerah A,Benichou S,Basmaciogullari S

    更新日期:2009-07-01 00:00:00

  • Genetic and functional analysis of full-length human immunodeficiency virus type 1 env genes derived from brain and blood of patients with AIDS.

    abstract::The genetic evolution of human immunodeficiency virus type 1 (HIV-1) in the brain is distinct from that in lymphoid tissues, indicating tissue-specific compartmentalization of the virus. Few primary HIV-1 envelope glycoproteins (Envs) from uncultured brain tissues have been biologically well characterized. In this stu...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.22.12336-12345.2003

    authors: Ohagen A,Devitt A,Kunstman KJ,Gorry PR,Rose PP,Korber B,Taylor J,Levy R,Murphy RL,Wolinsky SM,Gabuzda D

    更新日期:2003-11-01 00:00:00

  • Involvement of DNA gyrase in bacteriophage T7 growth.

    abstract::We have found that the burst size of bacteriophage T7 was decreased in two Escherichia coli temperature-sensitive gyrase mutants incubated at the restrictive temperature. This reduction in burst size indicates that gyrase may be required for T7 growth. ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.53.1.296-298.1985

    authors: Steck TR,Drlica K

    更新日期:1985-01-01 00:00:00

  • Primary macrophages rely on histone deacetylase 1 and 2 expression to induce type I interferon in response to gammaherpesvirus infection.

    abstract::Type I interferon is induced shortly following viral infection and represents a first line of host defense against a majority of viral pathogens. Not surprisingly, both replication and latency of gammaherpesviruses, ubiquitous cancer-associated pathogens, are attenuated by type I interferon, although the mechanism of ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.03278-13

    authors: Mounce BC,Mboko WP,Kanack AJ,Tarakanova VL

    更新日期:2014-02-01 00:00:00

  • Hepatitis C virus induces epidermal growth factor receptor activation via CD81 binding for viral internalization and entry.

    abstract::While epidermal growth factor receptor (EGFR) has been shown to be important in the entry process for multiple viruses, including hepatitis C virus (HCV), the molecular mechanisms by which EGFR facilitates HCV entry are not well understood. Using the infectious cell culture HCV model (HCVcc), we demonstrate that the b...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.00750-12

    authors: Diao J,Pantua H,Ngu H,Komuves L,Diehl L,Schaefer G,Kapadia SB

    更新日期:2012-10-01 00:00:00

  • Multiple Roles of the Cytoplasmic Domain of Herpes Simplex Virus 1 Envelope Glycoprotein D in Infected Cells.

    abstract::Herpes simplex virus 1 (HSV-1) envelope glycoprotein D (gD) plays an essential role in viral entry. The functional regions of gD responsible for viral entry have been mapped to its extracellular domain, whereas the gD cytoplasmic domain plays no obvious role in viral entry. Thus far, the role(s) of the gD cytoplasmic ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01396-16

    authors: Arii J,Shindo K,Koyanagi N,Kato A,Kawaguchi Y

    更新日期:2016-10-28 00:00:00

  • Human papillomavirus types 16, 31, and 58 use different endocytosis pathways to enter cells.

    abstract::The early steps of the intracellular trafficking of human papillomavirus type 16 (HPV-16), -31, and -58 pseudovirions were studied by investigating the effects of drugs acting at defined points of endocytosis pathways on virus-like particle-mediated pseudoinfection by overexpression of a dominant-negative form of the ...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/jvi.77.6.3846-3850.2003

    authors: Bousarghin L,Touzé A,Sizaret PY,Coursaget P

    更新日期:2003-03-01 00:00:00

  • Strain-specific barriers against bovine prions in hamsters.

    abstract::We investigated the susceptibilities of Syrian golden hamsters to transmissible spongiform encephalopathy agents from cattle. We report efficient transmission of the L-type atypical bovine spongiform encephalopathy (BSE) agent into hamsters. Importantly, hamsters were also susceptible to the transmissible mink encepha...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01872-10

    authors: Nicot S,Baron T

    更新日期:2011-02-01 00:00:00

  • The insertion site of the temperate phage HB-746 is located near the phage remnant in the pneumococcal host chromosome.

    abstract::Combined Southern blot hybridization analyses of DNA digests of several clinical strains of Streptococcus pneumoniae have revealed the presence of a gene (hblR), or part of it, similar to the hbl7 gene coding for the cell wall lytic enzyme of the temperate HB-746 phage. The results confirmed that the genome of HB-746,...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.66.5.2860-2864.1992

    authors: Romero A,Lopez R,Garcia P

    更新日期:1992-05-01 00:00:00

  • A chimeric Ty3/Moloney murine leukemia virus integrase protein is active in vivo.

    abstract::This report describes the results of experiments to determine whether chimeras between a retrovirus and portions of Ty3 are active in vivo. A chimera between Ty3 and a Neo(r)-marked Moloney murine leukemia virus (M-MuLV) was constructed. The C-terminal domain of M-MuLV integrase (IN) was replaced with the C-terminal d...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.72.5.4297-4307.1998

    authors: Dildine SL,Respess J,Jolly D,Sandmeyer SB

    更新日期:1998-05-01 00:00:00

  • Claudin-6 and claudin-9 function as additional coreceptors for hepatitis C virus.

    abstract::Hepatitis C virus (HCV) is a global challenge to public health. Several factors have been proven to be critical for HCV entry, including the newly identified claudin-1 (CLDN1). However, the mechanism of HCV entry is still obscure. Presently, among the 20 members of the claudin family identified in humans so far, CLDN1...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.01457-07

    authors: Zheng A,Yuan F,Li Y,Zhu F,Hou P,Li J,Song X,Ding M,Deng H

    更新日期:2007-11-01 00:00:00

  • The dominant phosphoprotein pp65 (UL83) of human cytomegalovirus is dispensable for growth in cell culture.

    abstract::The phosphoprotein pp65 (ppUL83) of human cytomegalovirus (HCMV) is abundantly synthesized during lytic infection in cultured fibroblasts. As a major constituent of extracellular particles, it gains entry to infected cells immediately after adsorption and subsequently translocates to the cell nucleus. This efficient t...

    journal_title:Journal of virology

    pub_type: 杂志文章

    doi:10.1128/JVI.69.10.5959-5968.1995

    authors: Schmolke S,Kern HF,Drescher P,Jahn G,Plachter B

    更新日期:1995-10-01 00:00:00