Abstract:
:Salmonella spp. have been investigated as live vaccine vectors because they are heat stable and can elicit humoral, cellular, and secretory immune responses. However, the expression of some foreign antigens is toxic to bacterial vectors. We therefore studied an approach for the controlled expression of antigen in Salmonella typhimurium wherein the antigen is not expressed in vitro but is expressed in vivo. A model antigen, beta-galactosidase, was expressed from the trc promoter on one plasmid, while repression was achieved by Lacl expressed in trans from a second plasmid. The second repressor plasmid was incompatible with the expression plasmid encoding beta-galactosidase. Loss by segregation of the repressor plasmid in vitro correlated with increased expression of beta-galactosidase. Oral inoculation of mice with salmonellae containing both plasmids induced serum IgG but not nasal, salivary, or biliary IgA antibody to beta-galactosidase. Serum IgG as well as biliary IgA anti-S. typhimurium antibody, but not salivary or nasal IgA, were also detected. This salmonella vector system for the controlled expression of recombinant antigens may be of value for inducing systemic but not mucosal immunity to antigens that are toxic to bacterial vectors.
journal_name
Microb Pathogjournal_title
Microbial pathogenesisauthors
Ervin SE,Small PA Jr,Gulig PAdoi
10.1006/mpat.1993.1060subject
Has Abstractpub_date
1993-08-01 00:00:00pages
93-101issue
2eissn
0882-4010issn
1096-1208pii
S0882-4010(83)71060-0journal_volume
15pub_type
杂志文章abstract::Diseases caused by bacteria are today one of the great problems of present time. Access to over-the-counter medication, the indiscriminate use of antibacterials and high rates of hospitalization have contributed to the increase in cases. This picture has led to the search for new alternative drugs. Thus, secondary met...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.12.058
更新日期:2018-02-01 00:00:00
abstract::Visfatin plays an important role in regulation of inflammatory cytokines. However, the role of visfatin under bacterial stress condition is not fully explored yet. Therefore, the present study was conducted for the better understanding of the regulation mechanism of visfatin on the production of inflammatory cytokines...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.02.002
更新日期:2018-04-01 00:00:00
abstract::Using whole bacteria, rather than extracted, purified DNA samples, we amplified the papE gene sequences from 63 Escherichia coli isolates belonging to O serogroups O1, O2 and O6. These isolates were from collections separated temporally as well as geographically: from four cities in the US and one in Sweden. PCR ampli...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1006/mpat.1996.0033
更新日期:1996-06-01 00:00:00
abstract::Porphyromonas gingivalis is highly implicated in the pathogenesis of periodontitis, which is characterized by the destruction of periodontal connective tissues and the supporting alveolar bone. Receptor Activator of NF-kappaB Ligand (RANKL) stimulates bone resorption, whereas osteoprotegerin (OPG) blocks its action, a...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2007.03.001
更新日期:2007-07-01 00:00:00
abstract::A novel N-acyl substituted indole-linked benzimidazoles and naphthoimidazoles were synthesized. Their chemical structures were confirmed using spectroscopic tools including 1H NMR, 13C NMR and CHN-elemental analyses. Anti inflammatory activity for all target compounds was evaluated in-vitro. The synthesized compounds ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.12.021
更新日期:2018-01-01 00:00:00
abstract::The gene clusters encoding various P-fimbriae (F7(1), F7(2), F9 and F11) were compared. Deletion plasmids that lack the gene encoding the fimbrillin were derived from these gene clusters. Introduction of these deletion plasmids into an E. coli K12 strain resulted in non-fimbriated cells that still showed mannose-resis...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/0882-4010(86)90031-8
更新日期:1986-02-01 00:00:00
abstract::The Guama virus (GMAV) is a member of Peribunyaviridae family, Orthobunyavirus genus. Several strains of the virus were isolated in South and Central Americas from several hosts, such as humans, wild animals, including nonhuman primates, wild rodents and mosquitoes as well as mice used as sentinels. The virus is able ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.103627
更新日期:2019-10-01 00:00:00
abstract::Mycoplasma bovis is a risky pathogen mainly responsible for pneumonia and mastitis in cattle. Up to date, its pathogenesis is not clear. Since secreted proteins have a tricky role in M. bovis pathogenesis, this study was designed to systematically reveal M. bovis secretome and potential role in virulence of the pathog...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104135
更新日期:2020-06-01 00:00:00
abstract::Salmonella are causes of livestock, poultry, and other animal diseases but they also have the potential to infect people. Currently, antibiotics are the first choice for treatment of Salmonella infections. Thus, the utility of phage has become the research focus for scientists for several reasons. There are efficient,...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.10.042
更新日期:2019-01-01 00:00:00
abstract::SARS-CoV-2 is a causative agent of Coronavirus disease-19 (COVID-19), which is considered as a fatal disease for public health apprehension worldwide. This pathogenic virus can present everywhere. As it is a virus it can extend easily and cause severe illness to humans. Hence, an efficient international attentiveness ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104277
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:Since the high morbidity and mortality of candidemia among cancer patients, the epidemiology has been underlined. In recent years, Candida species genotyping has been established, which could provide detail characteristics of epidemiology and has been underscored for candidemia preventing strategies. METHOD...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2015.03.005
更新日期:2015-04-01 00:00:00
abstract::Uropathogenic Escherichia coli (UPEC) is the most prevalent causative agent of urinary tract infections (UTIs). The pathogenicity of UPEC relies on the expression of virulence factors which could be regulated by intercellular signal molecules. Our previous study found that sub-minimal inhibitory concentration ceftazid...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2021.104748
更新日期:2021-01-21 00:00:00
abstract::Microglial inflammation is the hallmark of S. aureus induced brain abscesses. Conventional antibiotic therapy could not regulate inflammation and the use of steroids in CNS infection remained controversial. To address this issue the effect of dexamethasone along with ciprofloxacin on microglial inflammation has been a...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104227
更新日期:2020-08-01 00:00:00
abstract::In this study, the effects of water, ethanol, methanol and glycerin at five levels (0, 31.25, 83.33, 125 and 250 ml) were investigated on the efficiency of mangrove leaf extraction using mixture optimal design. The antimicrobial effect of the extracts on Streptococcus pneumoniae, Enterococcus faecium and Klebsiella pn...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.12.004
更新日期:2018-01-01 00:00:00
abstract::Bacillus anthracis secretes three major components, which assemble into two bipartite toxins: lethal toxin (LT), composed of lethal factor (LF) and protective antigen (PA) and edema toxin (ET), composed of edema factor (EF) and PA. EF is a potent calmodulin-dependent adenylate cyclase, which is internalized into the t...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2011.10.002
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:Pseudomonas aeruginosa, an opportunistic pathogen, can cause serious health problems and produces several virulence factors. The most important of these factors is biofilm. Many studies suggest administration of new generation of antibiotics, as P. aeruginosa biofilm has developed high resistance to antimicro...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.03.055
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Malaria is a public health concern that leads to about a million deaths worldwide every year. Malaria is caused by the genus Plasmodium, which includes P. falciparum, P. vivax, P. malariae, and P. ovale. Molecular phylogeny is essential to better recognition the evolution of the genus Plasmodium genus and de...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.103782
更新日期:2019-12-01 00:00:00
abstract::Chronic hepatitis B (CHB) infection is a typical inflammatory disease characterized by a dysregulated expression of cytokines, which contributes to the pathogenesis of chronic Hepatitis B virus (HBV) infection. IL-36 cytokines (IL-36α, IL-36β, IL-36γ and IL-36Ra) are important players in infection and immunity. Howeve...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.11.023
更新日期:2017-12-01 00:00:00
abstract::We have described a new class of live attenuated salmonella vaccines harbouring lesions in htrA, a stress protein gene previously. The virulence and invasiveness of Salmonella htrA mutants was investigated in three models of increased susceptibility to Salmonella infection. These included BALB/c mice, either given sub...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/0882-4010(92)90049-t
更新日期:1992-04-01 00:00:00
abstract::The differences between the immune response elicited during a self-limiting and a life-threatening lung infection with Streptococcus pneumoniae was analyzed in a mouse model of intranasal challenge using two different pneumococcal strains. M10, a serotype 11A strain, induced an early response within the first 12h afte...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2009.05.005
更新日期:2009-09-01 00:00:00
abstract::Protective immunity against Salmonella infection was studied in a mouse model. To study specificity of protection we used smooth (O-4,5,12) and rough vaccines; live and killed vaccines of both types were compared. The protection was assessed by enumerating the number of bacteria in the livers, and by following surviva...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/0882-4010(89)90007-7
更新日期:1989-01-01 00:00:00
abstract::Cervical cancer is a growing and serious problem world-wide in women, but more acute in developing countries especially in Indian subcontinent. The main causative agent for the disease is Human Papilloma Virus (HPV). The history of the cervical cancer goes back to eighteenth century as the HPV infection is reported si...
journal_title:Microbial pathogenesis
pub_type: 杂志文章,评审
doi:10.1016/j.micpath.2020.104131
更新日期:2020-06-01 00:00:00
abstract::This study aims to investigate whether IL-10 regulate decidual Treg cells apoptosis to reverse the abnormal pregnancy outcomes with Toxoplasma gondii (T. gondii) infection. Recombinant mouse IL-10 (rIL-10) treatment and IL-10 deficiency (IL-10(-/-)) abnormal pregnancy animal models with T. gondii infection were establ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2015.10.002
更新日期:2015-12-01 00:00:00
abstract::Helicobacter pylori is a microorganism that in the last years has been associated with extragastric disorders such as respiratory diseases, however, its impact on lung is partially understood. The aim of this work was to study infection impact of H. pylori on the inflammatory markers expression at the pulmonary level ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104103
更新日期:2020-02-26 00:00:00
abstract::A virus inhibitor found in gastric secretions and in extracts from gastrointestinal tissues is described. The inhibitor shares a number of characteristics with the recently described contact-blocking virus inhibitor (CVI), which is produced by unstimulated cells in culture, and occurs naturally in some body fluids. Th...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/0882-4010(86)90048-3
更新日期:1986-06-01 00:00:00
abstract::Capnocytophaga canimorsus is a part of healthy oral flora of dogs and cats. However, when it is transmitted to human subjects via animal bites or scratches, it can cause severe complications like endocarditis or even lethal septic shock, especially in immunocompromised persons. In this study, we performed the first wh...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.10.020
更新日期:2018-12-01 00:00:00
abstract::This study was design to evaluate the physiological properties of bacteriophage-insensitive Klebsiella pneumoniae (BIKP) mutants in association with the antibiotic cross-resistance, β-lactamase activity, and gene expression. Klebsiella pneumoniae ATCC 23357(KPWT), ciprofloxacin-induced antibiotic-resistant K. pneumoni...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.103625
更新日期:2019-10-01 00:00:00
abstract::The aim of this study was to use fluorescence in-situ hybridisation (FISH) to search for the tissues and cell types important in survival and persistence of Mycoplasma haemofelis, "Candidatus Mycoplasma haemominutum" or "Candidatus Mycoplasma turicensis" in infected cats. A 16S rDNA probe for each species was applied ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2010.09.003
更新日期:2011-02-01 00:00:00
abstract::Salmonella belongs to the Enterobacteriaceae family which is widely distributed in the environment due to its adaptive capacity to stress conditions. In addition, Salmonella is able to perform a type of cell-to-cell communication called quorum sensing, which leads to differential gene expression. The quorum sensing sy...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.05.014
更新日期:2018-08-01 00:00:00
abstract::This research focused on green engineering and characterization of silver (PcAgNPs) and copper nanoparticles (PcCuNPs) using Prosopis cineraria (Pc) leaf extract prepared by using microwave irradiation. We studied their enhanced antimicrobial activity on human pathogens as well as cytotoxicity on breast cancer cells (...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.02.019
更新日期:2017-04-01 00:00:00