Abstract：
:The study established the virulence potential of multidrug-resistant Escherichia coli (MDREC) isolates from nosocomial infections in hospitalised dogs. The isolates were resistant to fluoroquinolones, belonged to two distinct clonal groups (CG1 and CG2) and contained a plasmid-mediated AmpC (CMY-7) beta-lactamase. CG1 isolates (n=14) possessed two of 36 assayed extraintestinal virulence genes (iutA and traT) and belonged to phylogenetic group A, whereas CG2 isolates (n=19) contained four such genes (iutA, ibeA, fimH and kpsMT K5) and belonged to group D. In a mouse gastrointestinal tract colonisation model, colonisation by index CG1 strain C1 was transient, in contrast to the index CG2 strain C2b, which persisted up to 40days post-inoculation. In a mouse subcutaneous challenge model, both strains were less virulent than archetypal group B2 extraintestinal pathogenic E. coli (ExPEC) strain CFT073; strain C1 caused no systemic signs and strain C2b was lethal to only one of six mice. In a mouse urinary tract infection model, strain C2b colonised the mouse bladder over 2 logs higher compared to strain C1. Whilst both groups of canine MDREC appear less virulent than a reference human ExPEC strain, CG2 strains have greater capacity for colonisation and virulence.
journal_name
Microbes Infectjournal_title
Microbes and infectionauthors
Sidjabat HE,Chin JJ,Chapman T,Wu K,Ulett GC,Ong CY,Schembri MA,Johnson JR,Trott DJdoi
10.1016/j.micinf.2008.10.014subject
Has Abstractpub_date
2009-01-01 00:00:00pages
100-7issue
1eissn
1286-4579issn
1769-714Xpii
S1286-4579(08)00301-8journal_volume
11pub_type
杂志文章abstract：:Emerging evidence identifies multiple roles for nucleoside-diphosphate-kinase in host-microbe interaction. We provide the first synopsis of utilization of this molecule by various microorganisms during colonization of host tissues. Additionally, we propose novel mechanisms this effector may participate in, which could...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2011.10.002
更新日期：2012-03-01 00:00:00
abstract：:Infection with Chlamydia pneumoniae, a human respiratory pathogen, has been associated with various chronic diseases such as asthma and atherosclerosis, possibly because the pathogen can exist in a persistent form. C. pneumoniae persistently infect DCs in a TNF-alpha dependent manner. The present study investigated wh...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2009.07.006
更新日期：2009-11-01 00:00:00
abstract：:We produced a B95a lymphoid cell line persistently infected with canine distemper virus (CDV), in which virus-specific antigens were present in nearly 100% of cells without causing cytopathic effect. The virus recovered from this cell line was able to infect fresh B95a cells persistently, indicating that a persistent ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(99)80516-4
更新日期：1999-10-01 00:00:00
abstract：:Ebolavirus can cause a highly fatal and panic-generating human disease which may jump from bats to other mammals and human. High viral loads in body fluids allow efficient transmission by contact. Lack of effective antivirals, vaccines and public health infrastructures in parts of Africa make it difficult to health wo...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2014.11.007
更新日期：2015-02-01 00:00:00
abstract：:Microsporidia are intracellular pathogens that cause severe disease in immunocompromised humans and animals. We recently demonstrated that XID mice are more susceptible to Encephalitozoon cuniculi infection by intraperitoneal route, evidencing the role of B-1 cells in resistance against infection. The present study in...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2017.11.004
更新日期：2018-03-01 00:00:00
abstract：:Protective immunity against cutaneous leishmaniasis is dependent on the induction of Th1/Tc1 immune responses resulting in efficient parasite elimination. In this review, the mechanisms leading to protection are discussed with special focus on the role of Leishmania major-infected dendritic cells (DC) in induction of ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2004.05.024
更新日期：2004-10-01 00:00:00
abstract：:The primary purpose of preoperative dental screening of medical patients is to detect acute or chronic oral conditions that may require management prior to planned medical interventions. The aim of this communication is to discuss the background of preoperative dental screening and the link between dental pathologies ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2016.10.002
更新日期：2017-02-01 00:00:00
abstract：:Parachlamydia acanthamoebae is an obligate intracellular bacterium naturally infecting free-living amoebae. The role of this bacterium as an agent of pneumonia is suggested by sero-epidemiological studies and molecular surveys. Furthermore, P. acanthamoebae may escape macrophages microbicidal effectors. Recently, we d...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2015.08.007
更新日期：2015-11-01 00:00:00
abstract：:Erythritol is a four-carbon sugar preferentially utilized by Brucella spp. The presence of erythritol in the placentas of goats, cows, and pigs has been used to explain the localization of Brucella to these sites and the subsequent accumulation of large amounts of bacteria, eventually leading to abortion. Here we show...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2013.02.002
更新日期：2013-06-01 00:00:00
abstract：:Very recently, a new avian flu outbreak in humans, which is caused by a novel H7N9 influenza A virus (AIV), was reported in China. As of April 13, 2013, 49 confirmed cases (mainly middle-aged to elderly males), including 11 deaths, were reported in China. Here we analyzed the genomic signatures and protein sequences o...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2013.04.004
更新日期：2013-06-01 00:00:00
abstract：:The innate immune system detects the presence of microbes through different families of pattern-recognition receptors (PRRs). PRRs detect pathogens of all origins and trigger signaling events that activate innate and adaptive immunity. These events need to be tightly regulated in order to ensure optimal activation whe...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2017.01.003
更新日期：2017-01-01 00:00:00
abstract：:The iron-limitation-inducible protein FrpB of Neisseria meningitidis is an outer-membrane-localized siderophore receptor. Because of its abundance and its capacity to elicit bactericidal antibodies, it is considered a vaccine candidate. Bactericidal antibodies against FrpB are, however, type-specific. Hence, an FrpB-b...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.04.011
更新日期：2006-07-01 00:00:00
abstract：:CD4(+)CD25(+) T cells regulate the activity of autoreactive T cells. Depletion of these cells results in the development of a wide-spectrum of organ-specific autoimmune diseases. In vitro model systems have been developed to study the function of these potent suppressor cells. Following their activation via their T-ce...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(01)01453-8
更新日期：2001-09-01 00:00:00
abstract：:Macrophages respond to infection with Legionella pneumophila by the induction of inflammatory mediators, including type I Interferons (IFN-Is). To explore whether the bacterial second messenger cyclic 3'-5' diguanylate (c-diGMP) activates some of these mediators, macrophages were infected with L. pneumophila strains i...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2011.09.002
更新日期：2012-02-01 00:00:00
abstract：:The immune response, both in innate and adaptive immunity, is controlled at several levels, including signaling from the central nervous system. Neuropeptides released within the lymphoid organs modulate the immune response, either as stimulators or inhibitors. The subject of this review is the description of macropha...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(00)01361-7
更新日期：2001-02-01 00:00:00
abstract：:Brucella abortus is an intracellular bacterium that establishes lifelong infections in livestock and humans although the mechanisms of its chronicity are poorly understood. Activated B cells have long lifespan and B. abortus infection activates B cells. Our results indicate that the direct infection of B cells with B....
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2016.04.001
更新日期：2016-09-01 00:00:00
abstract：:The Escherichia coli NleH1 and NleH2 virulence proteins differentially regulate host transcription of innate immunity genes. The mouse pathogen Citrobacter rodentium encodes one NleH protein, which functions equivalently to E. coli NleH1. We examined the impact of host genetics and intestinal inflammation on the contr...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2014.02.003
更新日期：2014-05-01 00:00:00
abstract：:A potent DNA vaccine against HIV, combining a vector that takes advantage of the segregation and compartmentalization effect of bovine papilloma virus E2 protein with MultiHIV insert, expressing a fusion gene coding for the non-structural and structural proteins was developed and tested for immunogenicity in mice and ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2005.07.023
更新日期：2005-11-01 00:00:00
abstract：:Shigella and Salmonella kill host cells and trigger inflammatory responses by mechanisms that are not fully understood. The goal of this review is to reevaluate key observations reported over the past 15 years and, whenever possible, to provide a chronological perspective as to how our understanding of the pathways by...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2005.08.002
更新日期：2006-02-01 00:00:00
abstract：:To investigate the association of viral infections with chronic fatigue syndrome (CFS), we assayed 2', 5'-oligoadenylate synthetase (2-5AS) activities in peripheral blood mononuclear cells from CFS patients in Japan. These patients were diagnosed in two hospitals, H1 and H2, located in different areas of the country. ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2003.07.002
更新日期：2003-10-01 00:00:00
abstract：:Since it was first described as having the ability to inhibit macrophage activation, transforming growth factor-beta (TGF-beta) has been analyzed for its role in regulating immune responses to a variety of pathogens, including viruses, bacteria, yeast, and protozoa. Most of the studies have involved organisms that inf...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(99)00252-x
更新日期：1999-12-01 00:00:00
abstract：:Comparative genomics and microarrays reveal that the genomes of different Salmonella enterica serovars are distinguished from each other by the presence or absence of hundreds of genes. The distribution of these variable genome regions is often not clonal. Therefore, lateral gene transfer (LGT) plays an important role...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(03)00186-2
更新日期：2003-09-01 00:00:00
abstract：:Respiratory syncytial virus (RSV) infection causes severe lower respiratory diseases in infancy, early childhood and the elderly. RSV infections respond poorly to current therapies. Therefore, we initiated a search for novel drug targets by investigating the characteristics and identity of RSV adhesion receptors on ma...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(02)00079-5
更新日期：2003-02-01 00:00:00
abstract：:Parasites of the Leishmania genus are the causative agents of a complex disease called leishmaniasis. Many activities of infected cells including their responses to a range of stimuli are modulated by Leishmania parasites. This review will profile some of the parasite molecules that target host cell processes for whic...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2014.07.012
更新日期：2014-09-01 00:00:00
abstract：:The strategies that allow Brucella abortus to persist for years inside macrophages subverting host immune responses are not completely understood. Immunity against this bacterium relies on the capacity of IFN-γ to activate macrophages, endowing them with the ability to destroy intracellular bacteria. We report here th...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2010.10.020
更新日期：2011-03-01 00:00:00
abstract：:There is considerable evidence that phase variation among transparent and opaque colony phenotypes of Streptococcus pneumoniae (Spn) plays an important role in the pneumococcal adherence and invasion. The current study was designed to investigate the interactions of the opacity phenotype variants of Spn with specific ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2012.08.002
更新日期：2012-11-01 00:00:00
abstract：:Vibrio cholerae induces either non-inflammatory diarrhea or inflammatory gastroenteritis, depending on the presence of cholera toxin, a fluid secretion inducer and a modulator of host immunity. In the absence of cholera toxin, other toxins induce inflammation, resulting in gastroenteritis. Thus, multiple toxins likely...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2003.08.007
更新日期：2003-11-01 00:00:00
abstract：:This review summarizes and discusses virulence mechanisms whereby Porphyromonas gingivalis can persist in the oral cavity. It is proposed that the virulence of P. gingivalis is dependent, at least in part, upon its ability to establish a complex host-pathogen molecular crosstalk which subverts innate immunity. The sop...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2009.03.009
更新日期：2009-05-01 00:00:00
abstract：:We investigated the thymic and peripheral T-lymphocyte subsets in BALB/c mice undergoing acute or chronic Trypanosoma cruzi infection, in terms of expression of particular Vbeta rearrangements of the T-cell receptor. We first confirmed the severe depletion of CD4(+)CD8(+) thymocytes following acute T. cruzi infection....
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(03)00156-4
更新日期：2003-08-01 00:00:00
abstract：:In this review, we give a summary of recent examples of hybridisation in fungi. Reports on hybridisation between pathogenic fungi infecting plants have increased during the last decade. Hybrids of plant pathogens may create devastating new diseases on both cultivated and wild plants; at the same time, hybridisation is...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)00005-9
更新日期：2002-11-01 00:00:00
