Abstract:
:The present study characterizes immune cell populations in mice chronically infected with Salmonella. Mice were characterized as chronically infected based on persistently high titers of Salmonella-reactive immunoglobulins in the serum >6 months after a single oral dose of S. enterica serovar Typhimurium. These mice had a visibly enlarged spleen but not liver, while both organs harbored bacteria and had increased total cellularity up to 11 months post-infection. Flow cytometry analysis revealed significantly elevated numbers of neutrophils, dendritic cells (DC) and macrophages in the spleen of chronically infected mice. In contrast, no significant increase in the absolute number of T and B cells was apparent in the spleen and DX5+ cells, which includes NK cells, some NK T cells and possibly some activated T cells, appears to correlate with chronic Salmonella infection in the liver but not the spleen. In situ analyses revealed that CD8alpha+ DC and Gr-1+ cells (neutrophils) increased in the splenic red pulp of chronically infected mice. In addition, Gr-1+ cells, CD68+ cells and CD11c+ cells (DC), the latter lacking detectable staining for CD8alpha and CD4, accumulated around hepatic blood vessels and in the hepatic network in the liver of mice chronically harboring bacteria. These data provide insight into changes that occur within immune cell populations, most notably within splenic and hepatic phagocytic cell populations, that accompany chronic infection with the intracellular bacterium Salmonella.
journal_name
Microb Pathogjournal_title
Microbial pathogenesisauthors
Johansson C,Ingman M,Jo Wick Mdoi
10.1016/j.micpath.2006.03.004subject
Has Abstractpub_date
2006-08-01 00:00:00pages
49-58issue
2-3eissn
0882-4010issn
1096-1208pii
S0882-4010(06)00045-3journal_volume
41pub_type
杂志文章abstract::Over the past 50 years, fungal natural products have revolutionized medicine, yielding drugs which have enormous therapeutic potential. The aim of this study was to investigate the probable effect of marine fungal natural products on various skin pathogens. Initially, seventy natural extracts obtained from 35 differen...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104248
更新日期:2020-09-01 00:00:00
abstract::Edwardsiella tarda poses a threat to human health and has resulted in enormous economic losses in aquaculture. Low temperatures are usually applied to contain the growth of this microorganism. In this study, stable isotope labelling by amino acids in cell culture (SILAC) was used to conduct comparative proteomic quant...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.09.006
更新日期:2018-12-01 00:00:00
abstract::Black phosphorus (BP) has attracted research interest due to its excellent physiochemical properties in various biomedical applications. However, challenges remain of establishing BP as a practical nanomaterial platform against bacterial infections caused by hard-to-treat pathogens. This review highlights the novel ap...
journal_title:Microbial pathogenesis
pub_type: 杂志文章,评审
doi:10.1016/j.micpath.2019.103800
更新日期:2019-12-01 00:00:00
abstract::This study aimed to isolate and demonstrate their antioxidant and immunostimulatory activities of potential probiotics. The isolated strains, S. Pum19, SC28, and SC61 showed potential probiotic properties including stability in artificial gastric and bile conditions, non-production of β-glucuronidase, suitable antibio...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.10.018
更新日期:2018-12-01 00:00:00
abstract::Interleukin-10 (IL-10) is an anti-inflammatory cytokine associated with the inhibition of HIV replication. IL-10 polymorphisms were found to be linked to drug-induced hepatotoxicity. Hence we examined the prevalence of IL-10 (-819C/T,-1082A/G) polymorphisms in a total of 165 HIV patients which included 34 patients wit...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.103544
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Canine distemper virus (CDV) can cause a highly contagious disease to canid. However, how CDV affects peripheral blood lymphocyte (PBL) remains unclear. METHODS:In this study, CDV infected PBL was cultured to investigate the effect of CDV on the differentiation of lymphocytes and the mRNA expression of infl...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.04.025
更新日期:2019-06-01 00:00:00
abstract::Three coagulase-negative Staphylococcus species (CNS) (Staphylococcus epidermidis, Staphylococcus xylosus and Staphylococcus hyicus), from the milk of cows with mastitis, were used to evaluate adherence to and internalization by bovine mammary epithelial cells, and to investigate involvement of host cell signal transd...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1006/mpat.2001.0465
更新日期:2001-11-01 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::This paper describes the development of a murine bank of monoclonal antibodies against Bordetella pertussis toxin, filamentous hemagglutinin (FHA), pili, lipopolysaccharide (LPS), or outer membrane proteins (OMPs). Subunits S1, S2, S3 of pertussis toxin (PT) bound immunoglobulins and glycoproteins such as fetuin and h...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/0882-4010(90)90024-k
更新日期:1990-06-01 00:00:00
abstract::Due to the growing number of multi-resistant Candida spp., adjuvant treatments that may help combat these fungal pathogens are relevant and useful. This study evaluated the immunomodulation and anti-Candida activity of Lactobacillus rhamnosus (LR), Lactobacillus acidophilus and Lactobacillus paracasei suspensions, eit...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.08.006
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:DNA vaccine has emerged as a promising approach with potential for Tuberculosis (TB) prevention in adults. However, the mechanism behind DNA vaccines is still largely unknown. MATERIALS AND METHODS:Utilizing the CRISPR/Cas9 technique, we engineered Ag85A mutated dendritic cells (Ag85A-M-DCs) in which the Ag8...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104487
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Blastocystis is one of the most common pathogens of the human intestine, caused by an emerging parasite, which can lead to severe symptoms and even death in immunocompromised patients. We aimed to determine the global prevalence of Blastocystosis infection in people with immunodeficiency. A systematic litera...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104615
更新日期:2020-11-24 00:00:00
abstract::As a stationary-phase signal, indole is secreted in large quantities by Escherichia coli on enriched media and has been shown to control several genes; however, its impact on acid resistance remains to be studied in detail. Real-time quantitative reverse transcription-polymerase chain reaction analysis revealed that i...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2010.05.002
更新日期:2010-09-01 00:00:00
abstract::Listeriosis is a serious infection linked to the consumption of food contaminated with Listeria monocytogenes. Outbreaks and mortality rates associated with this infection make it a significant public health concern. As biocontrol agents, probiotics such as Lactobacillus plantarum had been of interest for the promotio...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2019.103744
更新日期:2019-12-01 00:00:00
abstract::Siderophores are low molecular weight molecules that allow bacteria to acquire iron from host cell proteins. 2,3-dihydroxybenzoic acid (DHBA) is the only known siderophore produced by the intracellular pathogen Brucella abortus. Here its role in virulence was assessed by evaluating the ability of a mutant with a disru...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1006/mpat.2002.0500
更新日期:2002-05-01 00:00:00
abstract::Dendritic cells (DCs) are key linkages between innate immunity and acquired immunity. The antigens that promote the functions of DCs might be the effective candidates of novel vaccine. In this research, the ability of ubiquitin-conjugating enzyme (UCE), a recognized common antigens among chicken Eimeria species, to st...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104162
更新日期:2020-06-01 00:00:00
abstract::Yersina enterocolitica-like species have not been extensively studied regarding its pathogenic potential. This work aimed to assess the pathogenic potential of some Y. enterocolitica-like strains by evaluating the presence of virulence-related genes by PCR and their ability to adhere to and invade Caco-2 and HEp-2 cel...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.01.008
更新日期:2017-03-01 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::Brucellosis, a disease caused by the gram-negative bacterium Brucella spp., is a widespread zoonosis that inflicts important animal and human health problems, especially in developing countries. One of the hallmarks of Brucella infection is its capacity to establish a chronic infection, characteristic that depends on ...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2014.01.003
更新日期:2014-02-01 00:00:00
abstract::The 26 kDa protein of Helicobacter pylori, with 67% amino acid identity to alkyl hydroperoxide reductase (AhpC) of Campylobacter jejuni, was studied. We wanted to evaluate it the protein has AhpC activity. Therefore, an Escherichia coli mutant defective for alkyl hydroperoxide reductase and a plasmid expressing the 26...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1006/mpat.2000.0388
更新日期:2000-11-01 00:00:00
abstract::The present study was aimed to investigate and understand the mechanism of inhibitory effect of phenyl benzoxime on proliferation of SNU-306 cells. Proliferation of SNU-306 cells transfected with wild-type p53-induced phosphatase 1 (Wip1)-siRNA or treated with phenyl benzoxime was examined by 3-(4,5-dimethythiazol-2-y...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2018.10.021
更新日期:2019-01-01 00:00:00
abstract::The pathogenesis and development of ankylosing spondylitis (AS) is concealed and complicated. In recent years, alterations in gut microbiota of AS patients have been largely investigated, although the underlying mechanisms remain unclear. This article reviews the recent studies on changes of gut microbiota in AS patie...
journal_title:Microbial pathogenesis
pub_type: 杂志文章,评审
doi:10.1016/j.micpath.2019.04.038
更新日期:2019-07-01 00:00:00
abstract::Essential oils and their chemical constituents have been reported with well documented antimicrobial effects against a range of bacterial, fungal and viral pathogens. By definition, essential oils are a complex mixture of volatile organic compounds which are synthesized naturally in different parts of the plant as par...
journal_title:Microbial pathogenesis
pub_type: 杂志文章,评审
doi:10.1016/j.micpath.2020.104620
更新日期:2020-11-16 00:00:00
abstract::Protein E (PE) is a conserved entity observed in both nontypeable Haemophilus influenzae (NTHi) and encapsulated H. influenzae. This is a small surface lipoprotein, consisting of only 160 amino acids, involved in the adhesion of H. influenzae to various types of epithelial cells. A 384-bp-long fragment from NTHi PE wa...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.07.025
更新日期:2017-09-01 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::According to the WHO factsheet, although approximately half a million brucellosis cases are reported annually, the true incidence is always 10-25 times higher than the reported number of cases. Therefore, we face a common yet uncommonly recognized entity of brucellosis, which highlights the importance of providing pre...
journal_title:Microbial pathogenesis
pub_type: 杂志文章,评审
doi:10.1016/j.micpath.2019.02.011
更新日期:2019-04-01 00:00:00
abstract::Staphylococcus aureus expresses many Microbial Surface Recognizing Adhesive Matrix Molecules (MSCRAMM's) to recognize host extracellular matrix (ECM) molecules to initiate colonization. The MSCRAMM, fibronectin binding protein A (FnBPA), is an important adhesin for S. aureus infection. FnBPA also binds with fibrinogen...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2020.104239
更新日期:2020-09-01 00:00:00
abstract::Hepatitis C virus (HCV) infection is considered one of the most important causes of chronic liver diseases. Many reports have shown that the proteins of the HCV via interactions with gene expression regulatory networks such as cellular pathways and microRNAs can contribute to the development of chronic liver diseases....
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2017.03.004
更新日期:2017-09-01 00:00:00
abstract::Like most microorganisms, Neisseria gonorrhoeae alters gene expression in response to iron availability. The ferric uptake regulator Fur has been shown to be involved in controlling this response, but the extent of this involvement remains unknown. It is known that in addition to working directly to repress gene expre...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2008.12.003
更新日期:2009-03-01 00:00:00
abstract::Orientia tsutsugamushi, an obligate intracellular bacterium, is the causative agent of scrub typhus which is histopathologically characterized by inflammatory manifestations, indicating that rickettsiae induce mechanisms that amplify the inflammatory response. To understand the pathogenesis of scrub typhus, we examine...
journal_title:Microbial pathogenesis
pub_type: 杂志文章
doi:10.1016/j.micpath.2003.08.006
更新日期:2004-01-01 00:00:00