Abstract:
:We determined the capacity of microcapsules formed by the combination of sodium alginate, an aqueous anionic polymer, and spermine hydrochloride, an aqueous cationic amine, to enhance protection against rotavirus challenge in mice. Adult BALB/c mice were orally inoculated with either free or microencapsulated rotavirus (simian rotavirus strain RRV) and challenged 6 or 16 weeks later with murine rotavirus strain EDIM. Virus-specific humoral immune responses were determined at the time of challenge and 4 days after challenge by intestinal fragment culture. We found that spermine-alginate microcapsules enhanced protection against challenge 16 weeks after immunization but not 6 weeks after immunization. Quantities of virus-specific immunoglobulin A produced by small intestinal lamina propria lymphocytes were correlated with the degree of protection against challenge afforded by spermine-alginate microcapsules. Possible mechanisms by which microcapsules enhance protection against rotavirus challenge are discussed.
journal_name
J Viroljournal_title
Journal of virologyauthors
Moser CA,Speaker TJ,Offit PAdoi
10.1128/JVI.72.5.3859-3862.1998subject
Has Abstractpub_date
1998-05-01 00:00:00pages
3859-62issue
5eissn
0022-538Xissn
1098-5514journal_volume
72pub_type
杂志文章abstract::Herpesviruses are members of a diverse family of viruses that colonize all vertebrates from fish to mammals. Although more than one hundred herpesviruses exist, all are nearly identical architecturally, with a genome consisting of a linear double-stranded DNA molecule (100 to 225 kbp) protected by an icosahedral capsi...
journal_title:Journal of virology
pub_type: 杂志文章,评审
doi:10.1128/JVI.01169-10
更新日期:2010-12-01 00:00:00
abstract::High rates of genetic variation ensure the survival of RNA viruses. Although this variation is thought to result from error-prone replication, RNA viruses must also maintain highly conserved genomic segments. A balance between conserved and variable viral elements is especially important in order for viruses to avoid ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.17.8505-8517.2002
更新日期:2002-09-01 00:00:00
abstract::HTG2 hamster cells produce a defective murine sarcoma virus lacking gp70 and, consequently, viral surface projections (knobs), but the lack of knobs appears to have no effect on intramembrane particle distribution. In addition, it has been noted that the core of the virus remains in the "immature" form as a result of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.36.3.872-877.1980
更新日期:1980-12-01 00:00:00
abstract::The double-stranded-DNA bacteriophages employ powerful molecular motors to translocate genomic DNA into preformed capsids during the packaging step in phage assembly. Bacillus subtilis bacteriophage 29 has an oligomeric prohead RNA (pRNA) that is an essential component of its packaging motor. The crystal structure of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01370-12
更新日期:2012-11-01 00:00:00
abstract::FMR antigens are found on the surface of cells infected with Friend, Moloney, and Rauscher murine leukemia viruses (MuLV). These antigens are serologically distinct from the G cell surface antigens that are found on cells infected with endogenous MuLV (AKR and Gross virus). Cell surface antigens of both virus groups a...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.26.3.805-812.1978
更新日期:1978-06-01 00:00:00
abstract::Viral manipulation of cellular proteins allows viruses to suppress host defenses and generate infectious progeny. Due to the linear double-stranded DNA nature of the adenovirus genome, the cellular DNA damage response (DDR) is considered a barrier to successful infection. The adenovirus genome is packaged with protein...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01089-17
更新日期:2017-09-27 00:00:00
abstract::To combat emerging coronaviruses, developing safe and efficient platforms to evaluate viral protease activities and the efficacy of protease inhibitors is a high priority. Here, we exploit a biosafety level 2 (BSL-2) chimeric Sindbis virus system to evaluate protease activities and the efficacy of inhibitors directed ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01749-14
更新日期:2014-10-01 00:00:00
abstract::The human papillomavirus type 18 (HPV-18) upstream regulatory region (URR) controls viral gene transcription in a cell-type-specific manner. The HPV-18 URR is active in HeLa cells but inactive in HepG2 cells. The activating activity of YY1 in HeLa cells is dependent on its functional interactions with the switch regio...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.70.11.7695-7705.1996
更新日期:1996-11-01 00:00:00
abstract::To examine the mode of transmission of BK polyomavirus (BKV), urine samples were collected from Japanese-Americans in Los Angeles and from other southern Californians. Subtype I was the main subtype found in samples from both groups. The subtype I subgroup Ib-2, which is predominant in Europe, was the primary subgroup...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01018-07
更新日期:2007-12-01 00:00:00
abstract::The influenza A virus (IAV) envelope protein hemagglutinin binds α2,6- or α2,3-linked sialic acid as a host cell receptor. Bat IAV subtypes H17N10 and H18N11 form an exception to this rule and do not bind sialic acid but enter cells via major histocompatibility complex (MHC) class II. Here, we review current knowledge...
journal_title:Journal of virology
pub_type: 杂志文章,评审
doi:10.1128/JVI.01357-19
更新日期:2020-01-31 00:00:00
abstract::The P4 promoter of the parvovirus minute virus of mice contains a single degenerate GC box sequence which binds the transcription factor Sp1 with high affinity. The two promoters of murine Sp1 were affinity purified, and their interactions with the P4 promoter were examined. Several unusual features were observed. Met...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.65.12.6661-6670.1991
更新日期:1991-12-01 00:00:00
abstract::Infectious hematopoietic necrosis virus (IHNV) is an important fish pathogen that infects both wild and cultured salmonids. As a species of the genus Novirhabdovirus, IHNV is a valuable model system for exploring the host entry mechanisms of rhabdoviruses. In this study, quantum dots (QDs) were used as fluorescent lab...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00109-11
更新日期:2011-07-01 00:00:00
abstract::During the years or decades of prion disease incubation, at-risk individuals are certain to encounter diverse pathological insults, such as viral and bacterial infections, autoimmune diseases, or inflammatory processes. Whether prion disease incubation time and clinical signs or otherwise the pathology of intercurrent...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00780-07
更新日期:2007-09-01 00:00:00
abstract::Tobacco necrosis virus, strain D (TNV-D), is a positive-strand RNA virus in the genus Betanecrovirus and family Tombusviridae The production of its RNA-dependent RNA polymerase, p82, is achieved by translational readthrough. This process is stimulated by an RNA structure that is positioned immediately downstream of th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02443-16
更新日期:2017-03-29 00:00:00
abstract::Many viruses express inhibitors of programmed cell death (apoptosis), thereby countering host defenses that would otherwise rapidly clear infected cells. To counter this, viruses such as adenoviruses and herpesviruses express recognizable homologs of the mammalian prosurvival protein Bcl-2. In contrast, the majority o...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01115-12
更新日期:2012-11-01 00:00:00
abstract::During the course of experiments designed to isolate deletion mutants of herpes simplex virus type 1 in the gene encoding the major DNA-binding protein, ICP8, a mutant, d61, that grew efficiently in ICP8-expressing Vero cells but not in normal Vero cells was isolated (P. K. Orberg and P. A. Schaffer, J. Virol. 61:1136...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.61.11.3528-3535.1987
更新日期:1987-11-01 00:00:00
abstract::Human cytomegalovirus (HCMV) is a prototypic member of the betaherpesvirus family. The HCMV virion is composed of a large DNA genome encapsidated within a nucleocapsid, which is wrapped within an inner proteinaceous tegument and an outer lipid envelope containing viral glycoproteins. Although genome encapsidation clea...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.76.10.5147-5155.2002
更新日期:2002-05-01 00:00:00
abstract::The ribonucleoprotein (RNP) internal components of influenza virus were separated into distinct size classes by sedimentation in glycerol gradients and examined by electron microscopy by using positive staining with uranyl acetate. The large RNP have a peak in length distribution at 90 to 110 nm, the medium, at 60 to ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.10.4.795-800.1972
更新日期:1972-10-01 00:00:00
abstract::Spleen necrosis virus productively infects avian and rat cells. The average number of molecules of unintegrated and integrated viral DNA in cells at different times after infection was determined by hybridization and transfection assays. Shortly after infection, there was a transient accumulation of an average of abou...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.31.2.376-388.1979
更新日期:1979-08-01 00:00:00
abstract::Actinophage MSP2 is infectious for Streptomyces venezuelae S13. Based upon electron microscopy of coliphage T4 mixed with MSP2, MSP2 had a head about 48 +/- 2 nm wide and 87 +/- 5 nm long. DNA from polyoma virus and from coliphages T4 and T7 served as reference markers in estimating the molecular weight of MSP2 DNA fr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.16.3.736-740.1975
更新日期:1975-09-01 00:00:00
abstract::We report several biological activities of a synthetic peptide whose sequence contains the highly conserved region of feline leukemia virus transmembrane protein (TM) synthetically linked to another short TM-derived sequence particularly rich in polar positive residues. This 29-amino-acid peptide blocked [3H]thymidine...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.64.4.1429-1436.1990
更新日期:1990-04-01 00:00:00
abstract::The contribution of the hepatitis B virus enhancers I and II in the regulation of the activity of the core and the X promoters was assessed in transgenic mice. Surprisingly, despite the presence of heterologous promoters linked 5' of the X gene, the transgene expression is mostly due to core promoter (Cp) activity pre...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.69.9.5912-5916.1995
更新日期:1995-09-01 00:00:00
abstract::The pluripotent cytokine tumor necrosis factor alpha (TNF-alpha) binds to its cognate TNF receptor I (TNF-RI) to stimulate inflammation via activation of the NF-kappaB transcription factor. To prevent the detrimental effects of TNF-alpha in keratinocytes infected with the molluscum contagiosum virus (MCV), this poxvir...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.80.2.578-586.2006
更新日期:2006-01-01 00:00:00
abstract::Most highly pathogenic avian influenza A viruses cause only mild clinical signs in ducks, serving as an important natural reservoir of influenza A viruses. However, we isolated two H5N1 viruses that are genetically similar but differ greatly in virulence in ducks. A/Chicken/Jiangsu/k0402/2010 (CK10) is highly pathogen...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00760-13
更新日期:2013-10-01 00:00:00
abstract::Infection of macaque monkeys with simian immunodeficiency virus (SIV) is probably the best animal model currently available for studying acquired immunodeficiency syndrome. In this report, we describe three infectious molecular clones of SIVmac and one of human immunodeficiency virus type 2 (HIV-2) and their use in th...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.62.12.4691-4696.1988
更新日期:1988-12-01 00:00:00
abstract::Human influenza viruses are more efficiently isolated by inoculating patient samples into the amniotic rather than the allantoic cavity of embryonated chicken eggs. This type of cultivation selects virus variants with mutations around the hemagglutinin (HA) receptor binding site. To understand the molecular basis of t...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.71.4.3357-3362.1997
更新日期:1997-04-01 00:00:00
abstract::The capsid (CA) domain of the Moloney murine leukemia virus (Mo-MuLV) Gag protein has a unique carboxy terminus with a highly charged arginine-rich sequence. Mutant viruses harboring arginine-to-alanine mutations affecting this region of CA displayed significant defects in virion release, and the few viral particles p...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.77.5.3339-3344.2003
更新日期:2003-03-01 00:00:00
abstract::The emerging porcine epidemic diarrhea virus (PEDV) requires trypsin supplementation to activate its S protein for membrane fusion and virus propagation in cell culture. By substitution of a single amino acid in the S protein, we created a recombinant PEDV with an artificial furin protease cleavage site N terminal of ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00356-15
更新日期:2015-08-01 00:00:00
abstract::Current L1 virus-like particle (VLP) vaccines provide type-restricted protection against a small subset of the human papillomavirus (HPV) genotypes associated with cervical cancer, necessitating continued cytologic screening of vaccinees. Cervical cancer is most problematic in countries that lack the resources for scr...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01577-07
更新日期:2007-11-01 00:00:00
abstract::Efficient T-cell responses against recombinant antigens expressed by vaccinia virus vectors require expression of these antigens in the early phase of the virus replication cycle. The kinetics of recombinant gene expression in poxviruses are largely determined by the promoter chosen. We used the highly attenuated modi...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.00604-10
更新日期:2010-09-01 00:00:00