Persistence of viral infection despite similar killing efficacy of antiviral CD8(+) T cells during acute and chronic phases of infection.

abstract：:The DNAs of the Cas-Br-E MuLV-induced leukemias always contain somatically acquired mink cell focus-forming (MCF) recombinant proviruses. MCF recombinants could be involved during leukemogenesis at both preleukemic times and in late-stage tumors. Among the Cas-Br-E-induced non-T-, non-B-cell leukemias, viral integrati...

journal_title：Virology

authors： Bergeron D,Poliquin L,Houde J,Barbeau B,Rassart E

更新日期：1992-12-01 00:00:00

abstract：:Matrix protein M1 purified from influenza A and B viruses has been analyzed for its ability to specifically interact with cellular proteins by immune coprecipitation and by an in vitro binding assay on nitrocellulose on PVDF membranes. When M1 was mixed with lysates of uninfected cells there was selective binding of h...

journal_title：Virology

authors： Zhirnov OP,Klenk HD

更新日期：1997-09-01 00:00:00

abstract：:The expression and subcellular location of the 33.6-kDa nonstructural protein NSm of tomato spotted wilt virus (TSWV) was analyzed in Nicotiana rustica plants and protoplasts as a function of time. Immunofluorescent studies in protoplasts isolated from TSWV-infected N. rustica leaves showed that this protein could fir...

journal_title：Virology

authors： Storms MM,Kormelink R,Peters D,Van Lent JW,Goldbach RW

更新日期：1995-12-20 00:00:00

abstract：:Coxsackievirus B3 (CVB3) is nonenveloped and has a single-stranded positive-sense RNA genome. CVB3 induces myocarditis and ultimately dilated cardiomyopathy. Although there are mounting evidences of an interaction between CVB3 particles and the cellular receptors, coxsackievirus and adenovirus receptor (CAR) and decay...

journal_title：Virology

authors： Chung SK,Kim JY,Kim IB,Park SI,Paek KH,Nam JH

更新日期：2005-03-01 00:00:00

abstract：:Avarol is a sesquiterpenoid hydroquinone, which displays no inhibitory potencies on mammalian DNA polymerases alpha, beta, and gamma, on mammalian RNA polymerases I, II, and III, or on reverse transcriptases from Moloney murine leukemia virus (Mo-MuLV) and from HIV. For a further elucidation of the antiviral effect of...

journal_title：Virology

authors： Kuchino Y,Nishimura S,Schröder HC,Rottmann M,Müller WE

更新日期：1988-08-01 00:00:00

abstract：:A stem-loop structure, formed by a pair of inverted repeats during DNA replication, is a conserved feature at the origin of DNA replication among plant and animal viruses, bacteriophages and plasmids that replicate their genomes via the rolling-circle replication (RCR) mechanism. In this work, a head-to-tail tandem co...

journal_title：Virology

authors： Cheung AK

更新日期：2007-06-20 00:00:00

abstract：:Nonspecific anti-inflammatory drugs have been purported to reduce the burden of severe influenza disease. We demonstrate that, unlike oseltamivir administration, simvastatin administration did not reduce morbidity, mortality, or viral load of mice infected with H1N1 or H5N1 viruses. No added benefit to the efficacy of...

journal_title：Virology

authors： Belser JA,Szretter KJ,Katz JM,Tumpey TM

更新日期：2013-04-25 00:00:00

abstract：:The neuraminidase (NA) genes of influenza B viruses B/Maryland/59, B/Hong Kong/8/73, B/Singapore/222/79, B/Oregon/5/80, B/USSR/100/83, B/Victoria/3/85, B/Leningrad/179/86, B/Memphis/6/86, and B/Memphis/3/89 have been sequenced. The deduced amino acid sequences show high variability in the stalk domain of the NA, but a...

journal_title：Virology

authors： Air GM,Laver WG,Luo M,Stray SJ,Legrone G,Webster RG

更新日期：1990-08-01 00:00:00

abstract：:Sequences critical for the activity of the measles virus (MV) RNA polymerase in transcription and replication were analyzed using a MV genomic cDNA library containing overlapping clones encompassing the entire MV genome. Clones corresponding to the 3' and 5' ends of the MV genome were identified and sequenced, and the...

journal_title：Virology

authors： Crowley JC,Dowling PC,Menonna J,Silverman JI,Schuback D,Cook SD,Blumberg BM

更新日期：1988-06-01 00:00:00

abstract：:Activation of the minute virus of mice (MVM) P4 promoter is a key step in the life cycle of the virus and is completely dependent on host transcription factors. Since transcription-factor composition varies widely in different cell types, there is the possibility that only some cell types in the host organism have the...

journal_title：Virology

authors： Davis C,Segev-Amzaleg N,Rotem I,Mincberg M,Amir N,Sivan S,Gitelman I,Tal J

更新日期：2003-02-15 00:00:00

abstract：:Herpes simplex virus mutant KG111 contains a nonsense mutation at codon 44 of the viral thymidine kinase (tk) gene and produces low amounts of a truncated tk polypeptide. We tested mutant KG111 and related viruses that specify varying amounts of similar truncated tk polypeptides for their sensitivities to antiviral nu...

journal_title：Virology

authors： Coen DM,Irmiere AF,Jacobson JG,Kerns KM

更新日期：1989-02-01 00:00:00

abstract：:The interaction between the viral envelope protein gp120 and the cellular surface antigen CD4 is a key event in HIV-1 infection. Reciprocal high affinity binding sites have been located in the first domain of CD4 and in the carboxy-terminal region of gp120, respectively. Upon infection, the membranes of the target cel...

journal_title：Virology

authors： Autiero M,Abrescia P,Dettin M,Di Bello C,Guardiola J

更新日期：1991-12-01 00:00:00

abstract：:We have mapped the genome of lettuce necrotic yellows virus (LNYV), the type member of the genus cytorhabdovirus of the family Rhabdoviridae. We have cloned and sequenced all intergenic regions and the 3' leader and 5' trailer of the negative-sense, single-stranded RNA genome of LNYV. The LNYV genome appears to contai...

journal_title：Virology

authors： Wetzel T,Dietzgen RG,Dale JL

更新日期：1994-05-01 00:00:00

abstract：:We report the isolation and characterization of HEp-2c cell clones obtained after two successive persistent poliovirus (PV) infections. Once cured, some of the cell clones displayed selective permissivity toward the wild-type Mahoney strain and partial resistance to particular mutants of this strain, including the Sab...

journal_title：Virology

authors： Calvez V,Pelletier I,Couderc T,Pavio-Guédo N,Blondel B,Colbère-Garapin F

更新日期：1995-10-01 00:00:00

abstract：:A series of nucleotide substitutions (G46----C; C47----A; C315----U; U317----C) were introduced into the virulence modulating region of the intermediate strain of potato spindle tuber viroid (PSTVd) in order to examine their effect upon viroid infectivity and pathogenicity with the presence of all four mutations resul...

journal_title：Virology

authors： Hammond RW

更新日期：1992-04-01 00:00:00

abstract：:Monoclonal antibodies to the matrix or E1 glycoprotein of mouse hepatitis virus (MHV) were tested for their ability to protect mice from a normally lethal challenge of MHV-4. Four antibodies were tested, and two of these, J.1.3 and J.3.9, were protective. Protection did not correlate with virus neutralization in vitro...

journal_title：Virology

authors： Fleming JO,Shubin RA,Sussman MA,Casteel N,Stohlman SA

更新日期：1989-01-01 00:00:00

abstract：:Hepatitis C virus (HCV) was shown to activate protein kinase R (PKR), which inhibits expression of interferon (IFN) and IFN-stimulated genes by controlling the translation of newly transcribed mRNAs. However, it is unknown exactly how HCV activates PKR. To address the molecular mechanism(s) of PKR activation mediated ...

journal_title：Virology

authors： Suzuki R,Matsuda M,Shimoike T,Watashi K,Aizaki H,Kato T,Suzuki T,Muramatsu M,Wakita T

更新日期：2019-03-01 00:00:00

abstract：:Three full-length genomic clones (pB19-M20, pB19-FL and pB19-HG1) of parvovirus B19 were produced in different laboratories. pB19-M20 was shown to produce infectious virus. To determine the differences in infectivity, all three plasmids were tested by transfection and infection assays. All three clones were similar in...

journal_title：Virology

authors： Filippone C,Zhi N,Wong S,Lu J,Kajigaya S,Gallinella G,Kakkola L,Söderlund-Venermo M,Young NS,Brown KE

更新日期：2008-05-10 00:00:00

abstract：:HIV-1 infection leads to impaired antigen-specific T cell proliferation, increased susceptibility of T cells to apoptosis, progressive impairment of T-helper 1 (Th1) responses, and altered maturation of HIV-1-specific memory cells. We have identified similar impairments in HIV-1 transgenic (Tg) rats. Tg rats developed...

journal_title：Virology

authors： Reid W,Abdelwahab S,Sadowska M,Huso D,Neal A,Ahearn A,Bryant J,Gallo RC,Lewis GK,Reitz M

更新日期：2004-03-30 00:00:00

abstract：:Treatment of HeLa cells with human lymphoblastoid interferon (IFN-alpha) does not inhibit reovirus type 3 protein synthesis during virus infection. In contrast, reovirus translation is blocked by treatment of L cells with mouse IFN-alpha. The (2'-5')A synthetase activity is induced in HeLa cells by IFN-alpha treatment...

journal_title：Virology

authors： Feduchi E,Esteban M,Carrasco L

更新日期：1988-06-01 00:00:00

abstract：:The Hepatitis B virus precore protein is processed in the endoplasmic reticulum (ER) into secreted hepatitis B e antigen (HBeAg), which acts as an immune tolerogen to establish chronic infection. Downregulation of secreted HBeAg should improve clinical outcome, as patients who effectively respond to current treatments...

journal_title：Virology

authors： Walsh R,Nuttall S,Revill P,Colledge D,Cabuang L,Soppe S,Dolezal O,Griffiths K,Bartholomeusz A,Locarnini S

更新日期：2011-03-01 00:00:00

abstract：:We have examined FIV vif function in the context of molecular clone pF34 (GenBank Accession No. M25729). Rabbit antisera directed against the translation product of the vif gene identified a 29-kDa protein in tissue culture cells infected with FIV-pF34; this protein was not present in cultures of uninfected cells. Thu...

journal_title：Virology

authors： Shacklett BL,Luciw PA

更新日期：1994-11-01 00:00:00

abstract：:In this study we have used an expression system based on Semliki Forest virus (SFV) to study assembly and intracellular localization of certain capsid proteins of rotavirus in neurons and mammalian epithelial cells. The complete genes of vp2 (vp2A) and vp6 (vp6A) of group A rotavirus (SA-11) and gene 5 encoding vp6 (v...

journal_title：Virology

authors： Nilsson M,von Bonsdorff CH,Weclewicz K,Cohen J,Svensson L

更新日期：1998-03-15 00:00:00

abstract：:A full-length cDNA of cucurbit aphid-borne yellows virus (CABYV) has been constructed and expressed either as an in vitro transcript, under control of a bacteriophage T7 RNA polymerase promoter, or in vivo, under control of the cauliflower mosaic virus 35S promoter in an agroinfection vector. The biological activity o...

journal_title：Virology

authors： Prüfer D,Wipf-Scheibel C,Richards K,Guilley H,Lecoq H,Jonard G

更新日期：1995-12-01 00:00:00

abstract：:Recombinants of Moloney murine leukemia virus (MoMuLV) with either an amphotropic (MoAmphoV) or 10A1-tropic host range (Mo10A1V) induce a spongiform neurodegenerative disease in susceptible mice. To test whether MoMuLV -derived sequences are required for induction of neuropathology, mice were inoculated with either th...

journal_title：Virology

authors： Münk C,Prassolov V,Rodenburg M,Kalinin V,Löhler J,Stocking C

更新日期：2003-08-15 00:00:00

abstract：:Here we describe the complete genome sequences of two strains of Usutu virus (USUV), a mosquito-borne member of the genus Flavivirus in the Japanese encephalitis virus (JEV) serogroup. USUV was detected in Austria in 2001 causing a high mortality rate in blackbirds; the reference strain (SAAR-1776) was isolated in 195...

journal_title：Virology

authors： Bakonyi T,Gould EA,Kolodziejek J,Weissenböck H,Nowotny N

更新日期：2004-10-25 00:00:00

abstract：:HIV-1 infection is characterized by life-long viral persistence and continued decline of helper CD4 T cells. The new generation of humanized mouse models that encompass RAG-hu, hNOG and BLT mice have been shown to be susceptible to HIV-1 infection and display CD4 T cell loss. Productive infection has been demonstrated...

journal_title：Virology

authors： Berges BK,Akkina SR,Remling L,Akkina R

更新日期：2010-02-05 00:00:00

abstract：:Piglets infected in utero with porcine reproductive and respiratory syndrome virus (PRRSV) are born severely immunocompromised. In this article we more closely examine the effects of in utero PRRSV infection on circulating and thymic T cell populations. Numbers of CD4+, CD8+, and dual-positive lymphocytes were quantit...

journal_title：Virology

authors： Feng WH,Tompkins MB,Xu JS,Brown TT,Laster SM,Zhang HX,McCaw MB

更新日期：2002-10-25 00:00:00

abstract：:High levels of nonfused chloramphenicol acetyltransferase, beta-galactosidase, and beta-glucuronidase expressed under the control of new vector constructs of the polyhedrin promoter in Spodoptera frugiperda cells infected with Autographa californica nuclear polyhedrosis virus were investigated by SDS-PAGE and RNA dot ...

journal_title：Virology

authors： Luckow VA,Summers MD

更新日期：1989-05-01 00:00:00

abstract：:We show that the product of the polarity suppression (psu) gene from bacteriophage P4 associates with P4 capsids. This association can occur when Psu is (i) provided in vivo from the P4 genome or from a plasmid or (ii) provided in vitro by mixing viable phage particles with Psu protein. Psu is unable to associate with...

journal_title：Virology

authors： Isaksen ML,Rishovd ST,Calendar R,Lindqvist BH

更新日期：1992-06-01 00:00:00