Abstract：
:The small surface antigen of hepatitis B virus (HBV) was produced in Drosophila melanogaster Schneider-2 (DS-2) cells transfected stably using an inducible Drosophila metallothionein promoter. Selected clonal DS-2 cell-lines expressed and secreted large quantities of HBsAg particles consisting exclusively of non-glycosylated 25 kDa proteins. HBsAg produced by DS-2 cells had physical and biochemical properties very similar to 22 nm particles derived from the human hepatoma cell-line PLC/PRF/5. DS-2 cell-derived HBsAg particles were purified near homogeneity by a strategy based on protein concentration, precipitation and ultracentrifugation. The resulting HBsAg product was < 98% pure. A single immunisation of BALB/c mice with both DS-2 and yeast-cell derived purified HBsAg particles without adjuvants elicited a substantial humoral antibody and class-I restricted cytotoxic T lymphocyte (CTL) response. Adsorption of HBsAg particles to aluminium hydroxide resulted in increased levels of HBsAg-specific antibodies. However, CTLs were not elicited by HBsAg/Alum combinations. Thus, stably transfected DS-2 cells provide a useful source for the production of HBV subviral particles for diagnostic and research purposes as well as for novel vaccine development.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Deml L,Schirmbeck R,Reimann J,Wolf H,Wagner Rdoi
10.1016/s0166-0934(99)00022-1subject
Has Abstractpub_date
1999-05-01 00:00:00pages
205-17issue
2eissn
0166-0934issn
1879-0984pii
S0166093499000221journal_volume
79pub_type
杂志文章abstract：:Adenoviruses are highly efficient vectors for gene transfer into brain cells. Restricting transgene expression to specific cell types and maintaining long-term expression are major goals for adenoviral-mediated gene transfer in the central nervous system. Human adenovirus type 5 (Ad5) mediated transgene expression is ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.07.012
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abstract：:An indirect enzyme-linked immunosorbent assay termed rnPRRS ELISA using baculovirus-expressed and affinity-purified viral nucleocapsid protein (rNC) antigen was developed for detecting antibodies against porcine reproductive and respiratory syndrome virus (PRRSV) in swine sera. Sera (1395) originating from different E...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(97)02186-1
更新日期：1997-05-01 00:00:00
abstract：:A rapid and sensitive method for detecting HIV-1 DNA sequences amplified by polymerase chain reaction (PCR) is described. The method uses solution phase hybridization for rapid and efficient annealing between digoxigenin-labeled targets and biotinylated capture probes. Hybrids containing biotin are captured onto strep...
journal_title：Journal of virological methods
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doi：10.1016/0166-0934(92)90174-c
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abstract：:Cell culture based assays used to detect waterborne viruses typically call for incubating the sample for at least two weeks in order to ensure that all the culturable virus present is detected. Historically, this estimate was based, at least in part, on the length of time used for detecting poliovirus. In this study, ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2016.09.002
更新日期：2016-11-01 00:00:00
abstract：:Marek's disease virus (MDV) is a highly oncogenic alphaherpesvirus that induces rapid-onset T-cell lymphoma in poultry. The complete genome of the avirulent vaccine strain MDV-814 was cloned as an infectious bacterial artificial chromosome (BAC) using an 8.8-kb fragment containing the self-designed selective marker gu...
journal_title：Journal of virological methods
pub_type： 杂志文章
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更新日期：2009-03-01 00:00:00
abstract：:Cervical carcinoma is one of the major consequences of human papillomavirus (HPV) infections. Although HPV infections of cervix do not always progress to cancer, 90% cases of cervical cancer have been found associated with high risk HPV (hrHPV) infection. Usually, HPV infection is asymptomatic; however, this asymptoma...
journal_title：Journal of virological methods
pub_type： 杂志文章,评审
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abstract：:Diagnostic tests are usually evaluated in terms of simple qualitative measures of sensitivity and specificity. When comparing different quantitative assays such as ELISAs, it is often more useful to deal with actual values (sample optical density/cut-off optical density ratio (OD ratio] rather than the qualitative rel...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(88)90087-0
更新日期：1988-10-01 00:00:00
abstract：:Four IgG(1kappa) monoclonal antibodies (mAbs) against Influenza A/Chicken/Vietnam/8/2004 (H5N1) virus are described. Three of these showed neutralizing activities against H5N1 strains from clades 1, 2 and 3 using a retroviral pseudotype or live virus microneutralization assay. In the pseudotype assay, the IC(90) neutr...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2008.12.016
更新日期：2009-05-01 00:00:00
abstract：:DNA-based immunization is a promising new technique for generating antibodies in laboratory animals for diagnostic purposes in biological science. The main advantages are the elimination of time and labor and the technically demanding steps of antigen purification. The DNA sequence of the protein of interest, cloned i...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(97)00057-8
更新日期：1997-07-01 00:00:00
abstract：:Hepatitis C virus (HCV) entry into target cells is thought to be a multistep process involving several cellular factors. However, their precise role during virus entry is unclear. Investigation of the mechanisms of HCV entry, such as the order of intervention by the cellular receptors, requires synchronizing infection...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2008.11.015
更新日期：2009-04-01 00:00:00
abstract：:It remains unclear whether hepatitis B virus (HBV) replicates in extrahepatic tissues, and particularly in peripheral blood mononuclear cells (PBMCs), which may serve as a reservoir for the maintenance of infection. A real-time PCR assay for the quantitation of total and covalently closed circular (ccc) HBV DNA in ser...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.07.019
更新日期：2006-12-01 00:00:00
abstract：:Recent studies have demonstrated the widespread contamination of river and seawater with noroviruses (NV), often with more than one strain. The heteroduplex mobility assay (HMA) in which amplicons from study samples are hybridised (by denaturing and reannealing) to amplicons from reference strains and resolved by elec...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2004.04.004
更新日期：2004-09-01 00:00:00
abstract：:Dengue surveillance relies on reverse transcription-polymerase chain reaction (RT-PCR), for confirmation of dengue virus (DENV) serotypes. We compared efficacies of published and modified primer sets targeting envelope (Env) and capsid-premembrane (C-prM) genes for detection of circulating DENV serotypes in southern I...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2017.02.014
更新日期：2017-06-01 00:00:00
abstract：:All human herpesviruses cause chronic infections in which latent virus is periodically reactivated. Persistently active infections are uncommon, however, and occur exclusively in individuals whose immune systems fail to control virus multiplication and spread. This paper summarizes the management of these unusual infe...
journal_title：Journal of virological methods
pub_type： 杂志文章,评审
doi：10.1016/0166-0934(88)90076-6
更新日期：1988-09-01 00:00:00
abstract：:Indicator cell lines are useful biological tools for monitoring virus infection. In order to monitor infection with bovine immunodeficiency virus (BIV) in vitro, an indicator cell line derived from baby hamster kidney cells which contains integrated copies of an enhanced green fluorescent protein gene driven by the BI...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.07.007
更新日期：2010-01-01 00:00:00
abstract：:Many viruses including HIV, hepatitis C and hepatitis B, have an outer lipid envelope which maintains inserted viral peptides in the "correct" functional conformation and orientation. Disruption of the lipid envelope by most solvents destroys infectivity and often results in a loss of antigenicity. This communication ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.05.027
更新日期：2006-10-01 00:00:00
abstract：:In recent years, there has been an increase in reported cases of fowl adenovirus serotype 4 (FAdV-4) in chickens in China. The use of live attenuated vaccines contaminated with FAdV-4 has been proved to be one of the important causes of massive outbreaks of hydropericardium syndrome. To detect the contamination with F...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2018.09.005
更新日期：2019-03-01 00:00:00
abstract：:Antibodies to non-structural protein 1 (NS1) of West Nile virus (WNV) have been used to differentiate WNV infection from infection by serologically cross-reactive flaviviruses, including Japanese encephalitis virus (JEV), in horses. However, since the inactivated West Nile (WN) vaccine has been reported to induce NS1 ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.10.012
更新日期：2011-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/0166-0934(82)90066-0
更新日期：1982-05-01 00:00:00
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journal_title：Journal of virological methods
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doi：10.1016/0166-0934(89)90060-8
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journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(88)90118-8
更新日期：1988-12-01 00:00:00
abstract：:Poxviruses are emerging pathogens in cetaceans, temporarily named 'Cetaceanpoxvirus' (CePV, family Poxviridae), classified into two main lineages: CePV-1 in odontocetes and CePV-2 in mysticetes. Only a few studies performed the molecular detection of CePVs, based on DNA-polymerase gene and/or DNA-topoisomerase I gene ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2018.06.002
更新日期：2018-09-01 00:00:00
abstract：:Following the introduction of African swine fever virus (ASFV) into Europe in 2007, ASFV infection has spread continuously over the past years and it became a high level disease threat in Europe and also Asia. Examination of suspect clinical cases for ASF with rapid and sensitive laboratory methods can substantially c...
journal_title：Journal of virological methods
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doi：10.1016/j.jviromet.2020.113886
更新日期：2020-05-23 00:00:00
abstract：:Matching serum and oral fluid (saliva) samples were collected from 369 subjects in Tunisia in 2002, from a city in the north and a rural district in the south. Rubella-specific IgG was detected in sera by commercial ELISA (Dade Behring) and in matching oral fluids by two methods, a previously described IgG-capture ELI...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2003.09.008
更新日期：2003-12-01 00:00:00
abstract：:The development of a quantitative-competitive reverse transcription-PCR (RT-PCR) assay to quantify dengue virus (DEN) genome (vRNA) and its replicative intermediate RNA (vRI) is described. A highly conserved region located on the DEN capsid-premembrane genes was used to produce a competitor RNA molecule which contains...
journal_title：Journal of virological methods
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doi：10.1016/j.jviromet.2008.05.007
更新日期：2008-09-01 00:00:00
abstract：:Human papillomavirus (HPV) infection is the primary cause of cervical cancer. The Quantivirus(®) HPV E6/E7 RNA 3.0 assay (DiaCarta, CA, USA) detects E6/E7 mRNA of 13 high risk subtypes and 6 low risk subtypes. Cervical specimens collected in PreservCyt were processed for HPV detection. Cervical biopsies were taken onl...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.11.024
更新日期：2013-02-01 00:00:00
abstract：:HPV-16 L1 methylation and E6/E7 mRNA have suggested that they had close relationship with cervical neoplastic progression. This study aimed to evaluate the clinical performance of the HPV-16 L1 methylation assay and E6/E7 mRNA test for detecting high-grade cervical lesions (CIN2+). A total of 81 women with liquid-base...
journal_title：Journal of virological methods
pub_type： 杂志文章
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更新日期：2015-11-01 00:00:00
abstract：:In the context of eradication of poliomyelitis the World Health Organization stimulates the development of inactivated polio vaccines based on attenuated virus strains. In addition to vaccine development, tests have to be designed to assess the vaccine quality. An important test is the identification test for poliovir...
journal_title：Journal of virological methods
pub_type： 杂志文章
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更新日期：2013-04-01 00:00:00
abstract：:Fowl adenovirus serotype-4 (FAdV-4) has been recognized as a predominant threat to the broilers aged from three to five weeks. Hydropericardium syndrome (HPS) is one of its major clinical diseases by FAdV-4 resulting in heavy economic losses. In this study, a loop-mediated isothermal amplification coupling with a late...
journal_title：Journal of virological methods
pub_type： 杂志文章
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更新日期：2019-08-01 00:00:00
abstract：:Procedures were developed for the screening and isolation of RNA viruses that vary from the consensus population by a single point mutation and are present in low abundance. We tested these procedures using a mixture of the vaccine donor line cold-adapted (ca) B/Ann Arbor/1/66 and its wild type (wt) progenitor at a ra...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(93)90031-l
更新日期：1993-05-01 00:00:00
