Abstract:
:Most current diagnostic tests for transmissible spongiform encephalopathies (TSE) rely on the presence of proteinase K (PK)-resistant PrP(Sc) (PrP-res) in postmortem tissues as an indication of TSE disease. However, a number of studies have highlighted a discrepancy between TSE infectivity and PrP-res levels in both natural and experimental cases of TSE disease. Previously, we have shown high TSE infectivity levels in the brain tissue of mice that have a clinical TSE disease with associated vacuolar pathology but little or no detectable PrP-res. Here, the levels of TSE infectivity and PrP-res within a peripheral tissue of this mouse model were investigated. Biochemical analysis showed that low levels of PrP-res were present in the spleen tissue in comparison to the levels observed in the spleen of mice infected with ME7 or 79A. However, upon subpassage of brain and spleen tissue from clinically ill mice with little or no PrP-res detectable, similar short incubation periods to disease were observed, indicating that infectivity levels were similarly high in both tissues. Thus, the discrepancy between PrP-res and TSE infectivity was also present in the peripheral tissues of this disease model. This result indicates that peripheral tissues can contain higher levels of infectivity given the correct combination of host species, PrP genotype, and TSE agent. Therefore, the assumption that the levels of peripheral infectivity are lower than those in the central nervous system is not always correct, and this could have implications for current food safety regulations.
journal_name
J Viroljournal_title
Journal of virologyauthors
Dobie K,Barron Rdoi
10.1128/JVI.03469-12subject
Has Abstractpub_date
2013-05-01 00:00:00pages
5895-903issue
10eissn
0022-538Xissn
1098-5514pii
JVI.03469-12journal_volume
87pub_type
杂志文章abstract::The successful use of a dendrimeric peptide to protect pigs against challenge with foot-and-mouth disease virus (FMDV), which causes the most devastating animal disease worldwide, is described. Animals were immunized intramuscularly with a peptide containing one copy of a FMDV T-cell epitope and branching out into fou...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00401-08
更新日期:2008-07-01 00:00:00
abstract:UNLABELLED:Since the 1960s, simian hemorrhagic fever virus (SHFV; Nidovirales, Arteriviridae) has caused highly fatal outbreaks of viral hemorrhagic fever in captive Asian macaque colonies. However, the source(s) of these outbreaks and the natural reservoir(s) of this virus remain obscure. Here we report the identifica...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02203-14
更新日期:2014-11-01 00:00:00
abstract::The great majority of viral mRNAs in mouse C127 cells transformed by bovine papillomavirus type 1 (BPV) have a common 3' end at the early polyadenylation site which is 23 nucleotides (nt) downstream of a canonical poly(A) consensus signal. Twenty percent of BPV mRNA from productively infected cells bypasses the early ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.12.7705-7710.1993
更新日期:1993-12-01 00:00:00
abstract::Hepatitis C virus (HCV) RNA genome replicates within the ribonucleoprotein (RNP) complex in the modified membranous structures extended from endoplasmic reticulum. A proteomic analysis of HCV RNP complexes revealed the association of oxysterol binding protein (OSBP) as one of the components of these complexes. OSBP in...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00958-09
更新日期:2009-09-01 00:00:00
abstract::Lassa fever (LF) is a potentially lethal human disease that is caused by the arenavirus Lassa virus (LASV). Annually, around 300,000 infections with up to 10,000 deaths occur in regions of Lassa fever endemicity in West Africa. Here we demonstrate that mice lacking a functional STAT1 pathway are highly susceptible to ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01433-13
更新日期:2013-10-01 00:00:00
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
更新日期:1998-05-01 00:00:00
abstract::The nucleotide sequence corresponding to the P3 region of the hepatitis A virus (HAV) polyprotein genome was determined from cloned cDNA and translated into an amino acid sequence. Comparison of the amino acid sequences of the genome-linked proteins (VPgs) of other picornaviruses with the predicted amino acid sequence...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.60.1.124-130.1986
更新日期:1986-10-01 00:00:00
abstract:UNLABELLED:The gastrointestinal mucosa is the primary site where human immunodeficiency virus type 1 (HIV-1) invades, amplifies, and becomes persistently established, and cell-to-cell transmission of HIV-1 plays a pivotal role in mucosal viral dissemination. Mast cells are widely distributed in the gastrointestinal tra...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.03008-15
更新日期:2015-12-30 00:00:00
abstract::The synthesis of Sendai virus RNA species was examined after UV irradiation of cells late in infection. Compared with the inactivation of 50S genomic RNA synthesis, the synthesis of the group of mRNA species that sediments at 18S was inactivated at an average rate consistent with a process of sequential transcription ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.21.3.863-871.1977
更新日期:1977-03-01 00:00:00
abstract::Recent evidence supports a role for vitamin K-dependent coagulation zymogens in adenovirus serotype 5 (Ad5, subgroup C) infection of hepatocytes. Here, we assessed the effect of virus-zymogen interaction on cellular transduction using a panel of fiber (f)-pseudotyped viruses derived from subgroup D (f47, f33, f24, f45...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02786-06
更新日期:2007-04-01 00:00:00
abstract::CM2 is the second membrane protein of the influenza C virus and has been demonstrated to play a role in the uncoating and genome packaging processes in influenza C virus replication. Although the effects of N-linked glycosylation, disulfide-linked oligomerization, and palmitoylation of CM2 on virus replication have be...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00773-17
更新日期:2017-10-27 00:00:00
abstract::Four chimeric human immunodeficiency virus type 1 (HIV-1) env genes were constructed which encoded the extracellular domain of either the wild-type or a cleavage-defective HIV-1 envelope glycoprotein (gp160) fused at one of two different positions in env to a C-terminal glycosyl-phosphatidylinositol (GPI) attachment s...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.9.5279-5288.1993
更新日期:1993-09-01 00:00:00
abstract:UNLABELLED:Cell culture (cc)-derived hepatitis B virus (HBV) can infect differentiated HepaRG cells, but efficient infection requires addition of polyethylene glycol (PEG) during inoculation. Identification of sodium taurocholate cotransporting polypeptide (NTCP) as an HBV receptor enabled ccHBV infection of NTCP recon...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01153-16
更新日期:2016-08-26 00:00:00
abstract::We have examined the relative ability of Sendai virus M (matrix) protein to associate with membranes containing viral glycoproteins at three distinct stages of the exocytic pathway prior to cell surface appearance. By the use of selective low-temperature incubations or the ionophore monensin, the transport of newly sy...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.67.2.651-663.1993
更新日期:1993-02-01 00:00:00
abstract::Interferon-induced proteins (IFPs) exert multiple functions corresponding to diverse interferon signals. However, the intracellular functions of many IFPs are not fully characterized. Here, we report that IFP35, a member of the IFP family with a molecular mass of 35 kDa, can interact with the bovine Tas (BTas) regulat...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02249-07
更新日期:2008-05-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.79.9.5259-5271.2005
更新日期:2005-05-01 00:00:00
abstract::Chronic hepatitis B affects over 300 million people who are at risk of developing liver cancer. The basis for the persistence of hepatitis B virus (HBV) in hepatocytes, even in the presence of available antiviral therapies, lies in the accumulation of covalently closed circular DNA (cccDNA) in nuclei of infected cells...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01391-17
更新日期:2017-12-14 00:00:00
abstract::The second of three short upstream open reading frames (uORF2) in the transcript leader of the human cytomegalovirus gp48 (gpUL4) virion glycoprotein gene inhibits downstream translation approximately 10-fold. Remarkably, this inhibition depends on the amino acid coding information of uORF2. In the current studies we ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.2.1030-1036.1995
更新日期:1995-02-01 00:00:00
abstract::An immediate-early protein of murine cytomegalovirus (MCMV), pp89, elicits an immunodominant and protective major histocompatibility complex (MHC) class I Ld-restricted CD8+ T-lymphocyte response. Remarkably, presentation of the naturally processed peptide of pp89, the nonapeptide YPHFMPTNL, is abolished during permis...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.1.289-297.1994
更新日期:1994-01-01 00:00:00
abstract::Adenovirus (Ad) replicative complexes form at discrete sites on the nuclear matrix (NM) via an interaction mediated by the precursor of the terminal protein (pTP). The identities of cellular proteins involved in these complexes have remained obscure. We present evidence that pTP binds to a multifunctional pyrimidine b...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.4.2896-2904.1998
更新日期:1998-04-01 00:00:00
abstract::The hepadnavirus P gene contains amino acid sequences which share homology with all known RNases H. In this study, we made four mutants in which single amino acids of the duck hepatitis B virus (DHBV) RNase H region were altered. In two of them, amino acids at locations comprising the putative catalytic site were chan...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.9.6151-6156.1996
更新日期:1996-09-01 00:00:00
abstract::Persistent infection with hepatitis C virus (HCV) is a major cause of chronic liver diseases. The aim of this study was to identify host cell factor(s) participating in the HCV replication complex (RC) and to clarify the regulatory mechanisms of viral genome replication dependent on the host-derived factor(s) identifi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02179-08
更新日期:2009-05-01 00:00:00
abstract::Three late transcripts have been mapped to the vaccinia virus 7.1-kilobase (kb) EcoRI F fragment, which is located approximately 85 kb from the left end of the viral genome. Hybrid selection and translation of RNA have demonstrated that these mRNAs encode three polypeptides with apparent molecular weights of 32,000 (3...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.49.2.510-520.1984
更新日期:1984-02-01 00:00:00
abstract::Lysyl-tRNA synthetase (LysRS) is packaged into human immunodeficiency virus type 1 (HIV-1) via its interaction with Gag, and this enzyme facilitates the selective packaging of tRNA(3)(Lys), the primer for initiating reverse transcription, into HIV-1. The Gag/LysRS interaction is detected at detergent-resistant membran...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.78.14.7553-7564.2004
更新日期:2004-07-01 00:00:00
abstract::Infectious vaccinia virus can be purified from whole cells by experimentally induced lysis (intracellular virus) or from supernatant growth medium (extracellular virus). Extracellular virus and intracellular virus differed by buoyant density (1.237 versus 1.272 g/cm3), phospholipid content and composition, and polypep...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.39.3.903-913.1981
更新日期:1981-09-01 00:00:00
abstract::Ebola viruses (EboV) are enveloped RNA viruses infecting cells by a pH-dependent process mediated by viral glycoproteins (GP) involving endocytosis of virions and their routing into acidic endosomes. As with well-characterized pH-dependent viral entry proteins, in particular influenza virus hemagglutinin, it is though...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.6.2815-2822.2006
更新日期:2006-03-01 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::Replication of the plus-stranded RNA genome of hepatitis C virus (HCV) occurs in a membrane-bound replication complex consisting of viral and cellular proteins and viral RNA. NS5B, the RNA polymerase of HCV, is anchored to the membranes via a C-terminal 20-amino-acid-long hydrophobic domain, which is flanked on each s...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02072-05
更新日期:2006-11-01 00:00:00
abstract::The hepatitis B virus X protein acts as a transcriptional transactivator in vitro. To elucidate possible biological effects of X protein on liver cells in vivo, we generated four lines of transgenic mice carrying the X gene open reading frame under the control of the human alpha-1-antitrypsin regulatory region. The pl...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.12.5939-5947.1990
更新日期:1990-12-01 00:00:00
abstract::Primary HIV-1 infection (PHI) is marked by a flu-like syndrome and high levels of viremia that decrease to a viral set point with the first emergence of virus-specific CD8+ T-cell responses. Here, we investigated in a large cohort of 527 subjects the immunodominance pattern of the first virus-specific cytotoxic T-lymp...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00182-09
更新日期:2009-08-01 00:00:00