Histophilus somni Survives in Bovine Macrophages by Interfering with Phagosome-Lysosome Fusion but Requires IbpA for Optimal Serum Resistance.

abstract：:Development of hemolytic uremic syndrome (HUS) after infection by Shigella dysenteriae 1 or enterohemorrhagic Escherichia coli has been associated with the production of Shiga toxins (verotoxins). The putative target of Shiga toxins in HUS is the renal microvascular endothelium. This report shows that preincubation of...

journal_title：Infection and immunity

authors： Kaye SA,Louise CB,Boyd B,Lingwood CA,Obrig TG

更新日期：1993-09-01 00:00:00

abstract：:Recurrent pulmonary infections with Staphylococcus aureus and Pseudomonas aeruginosa are a major problem in cystic fibrosis (CF), leading to severe and progressive deterioration of the respiratory tract. Fibronectin (FN) has a binding site(s) for S. aureus and Streptococcus pyogenes. This bacterial bindings site(s) wa...

journal_title：Infection and immunity

authors： Stanislawski L,Sorin M

更新日期：1991-03-01 00:00:00

abstract：:In vitro studies have shown that enterotoxigenic Escherichia coli (ETEC) strains are capable of invading cultured epithelial cells derived from the human ileum and colon. Two separate invasion loci (tia and tib) have previously been isolated from the classical ETEC strain H10407. The tia locus has been shown to direct...

journal_title：Infection and immunity

authors： Mammarappallil JG,Elsinghorst EA

更新日期：2000-12-01 00:00:00

abstract：:Burkholderia pseudomallei is a Gram-negative rod and the causative agent of melioidosis, an emerging infectious disease of tropical and subtropical areas worldwide. B. pseudomallei harbors a remarkable number of virulence factors, including six type VI secretion systems (T6SS). Using our previously described plaque as...

journal_title：Infection and immunity

authors： Hopf V,Göhler A,Eske-Pogodda K,Bast A,Steinmetz I,Breitbach K

更新日期：2014-05-01 00:00:00

abstract：:Despite the high prevalence of cutaneous infections, little is known about the role of host immune responsiveness during Staphylococcus aureus dermatitis. We have recently described a murine model of infectious dermatitis induced by superantigen-producing S. aureus. To assess the role of neutrophils in staphylococcal ...

journal_title：Infection and immunity

authors： Mölne L,Verdrengh M,Tarkowski A

更新日期：2000-11-01 00:00:00

abstract：:Cell-mediated immunity to herpes simplex virus type 1 (HSV-1) was assessed by a lymphocytotoxicity 51-Cr-release microassay procedure, using the MA-160 human prostatic adenoma cell line chronically infected with HSV-1 and its parent cell line as control. The specific immune release mean plus or minus standard deviatio...

journal_title：Infection and immunity

authors： Thong YH,Vincent MM,Hensen SA,Fuccillo DA,Rola-Pleszczynski M,Bellanti JA

更新日期：1975-07-01 00:00:00

abstract：:The kinetics of infection and the pathogenic effects on the reproductive function of laboratory mice infected with Bartonella birtlesii recovered from an Apodemus species are described. B. birtlesii infection, as determined by bacteremia, occurred in BALB/c mice inoculated intravenously. Inoculation with a low-dose in...

journal_title：Infection and immunity

authors： Boulouis HJ,Barrat F,Bermond D,Bernex F,Thibault D,Heller R,Fontaine JJ,Piémont Y,Chomel BB

更新日期：2001-09-01 00:00:00

abstract：:The bacterial pathogen Burkholderia pseudomallei invades host cells, escapes from endocytic vesicles, multiplies intracellularly, and induces the formation of actin tails and membrane protrusions, leading to direct cell-to-cell spreading. This study was aimed at the identification of B. pseudomallei genes responsible ...

journal_title：Infection and immunity

authors： Pilatz S,Breitbach K,Hein N,Fehlhaber B,Schulze J,Brenneke B,Eberl L,Steinmetz I

更新日期：2006-06-01 00:00:00

abstract：:The virulence plasmids of Salmonella typhimurium and other invasive Salmonella serovars have long been associated with the ability of these bacteria to cause systemic infection beyond the intestines in orally inoculated animals. Genetic analysis of virulence genes on the high-molecular-weight plasmids has revealed tha...

journal_title：Infection and immunity

authors： Gulig PA,Doyle TJ

更新日期：1993-02-01 00:00:00

abstract：:Thirty two anaerobic bacterial strains were screened for their in vitro inhibitory activity toward 21 Neisseria gonorrhoeae strains, including two penicillin-resistant strains. From this screening, six anaerobic bacteria belonging to the genera Bacteroides, Peptostreptococcus, and Eubacterium were selected for their l...

journal_title：Infection and immunity

authors： Morin A,Saheb SA,Bisaillon JG,Beaudet R,Sylvestre M

更新日期：1980-06-01 00:00:00

abstract：:A superoxide dismutase (SOD) gene from the obligate intracellular bacterium Coxiella burnetii has been cloned, and its DNA sequence has been determined and expressed in Escherichia coli. The gene was identified on pSJR50, a pHC79-derived genomic clone, by using the polymerase chain reaction with degenerate oligonucleo...

journal_title：Infection and immunity

authors： Heinzen RA,Frazier ME,Mallavia LP

更新日期：1992-09-01 00:00:00

abstract：:Activation of macrophages was assessed in strains of mice inoculated intraperitoneally with 1,000 times the 50% lethal dose of Rickettsia akari. Macrophages from mice resistant to R. akari infection (C3H/HeN, C57BL/10J, and BALB/cN) were nonspecifically tumoricidal 2 to 4 days after rickettsial inoculation. Moreover, ...

journal_title：Infection and immunity

authors： Nacy CA,Meltzer MS

更新日期：1982-06-01 00:00:00

abstract：:Thirty-two clinical isolates of Shiga-like toxin (SLT)-producing Escherichia coli associated with single cases or outbreaks of bloody diarrhea, hemorrhagic colitis, the hemolytic uremic syndrome, or edema disease of swine were examined for multiple copies of genes belonging to the slt-I or slt-II toxin families. Five ...

journal_title：Infection and immunity

authors： Schmitt CK,McKee ML,O'Brien AD

更新日期：1991-03-01 00:00:00

abstract：:Vibrio cholerae neuraminidase (NANase) is hypothesized to act synergistically with cholera toxin (CT) and increase the severity of a secretory response by increasing the binding and penetration of CT to enterocytes. To test this hypothesis, the NANase gene (nanH) from V. cholerae Ogawa 395 was first cloned and sequenc...

journal_title：Infection and immunity

authors： Galen JE,Ketley JM,Fasano A,Richardson SH,Wasserman SS,Kaper JB

更新日期：1992-02-01 00:00:00

abstract：:We developed a human inhibition monoclonal enzyme-linked immunosorbent assay (HIMELISA) to investigate the human immune response to the lipooligosaccharides (LOS) of Neisseria meningitidis. Monoclonal antibodies (MAb) were used to define seven epitopes on four LOS molecules of a meningococcal strain (126E) previously ...

journal_title：Infection and immunity

authors： Estabrook MM,Mandrell RE,Apicella MA,Griffiss JM

更新日期：1990-07-01 00:00:00

abstract：:Helicobacter pylori mutants devoid of urease activity fail to colonize the gastric mucosa of mice; however, the effect of decreased levels of urease on colonization has not been examined. The nixA gene, required for full urease activity, encodes a cytoplasmic membrane nickel transporter that imports nickel ions and le...

journal_title：Infection and immunity

authors： Nolan KJ,McGee DJ,Mitchell HM,Kolesnikow T,Harro JM,O'Rourke J,Wilson JE,Danon SJ,Moss ND,Mobley HL,Lee A

更新日期：2002-02-01 00:00:00

abstract：:Type 14 is one of the common types isolated from patients of all ages with infections caused by Streptococcus pneumoniae. Its capsular polysaccharide (Pn14) is composed of a neutrally charged tetrasaccharide repeat unit. Pn14 does not elicit protective levels of antibodies in infants and children and is a less than op...

journal_title：Infection and immunity

authors： Schneerson R,Levi L,Robbins JB,Bryla DM,Schiffman G,Lagergard T

更新日期：1992-09-01 00:00:00

abstract：:We have investigated the ability of two species of streptococci isolated from the human oral cavity (Streptococcus mutans NCTC 10449 and Streptococcus sobrinus SL-1) to metabolize N-acetylglucosamine (GlcNAc), a naturally occurring amino sugar present in saliva and human glycoproteins, when provided as the sole fermen...

journal_title：Infection and immunity

authors： Homer KA,Patel R,Beighton D

更新日期：1993-01-01 00:00:00

abstract：:A hemolysin that appears to be responsible for the zones of beta-hemolysis surrounding colonies of group B streptococci (Streptococcus agalactiae) on blood agar plates has been isolated and partially purified. No soluble hemolysin was detectable in the supernatants of streptococcal cultures grown in several types of m...

journal_title：Infection and immunity

authors： Marchlewicz BA,Duncan JL

更新日期：1980-12-01 00:00:00

abstract：:Streptococcus pyogenes secretes a specific immunoglobulin G (IgG)-protease, SpeB, as well as the IgG glycan-hydrolyzing enzyme EndoS. Here we show that SpeB also degrades IgA, IgM, IgD, and IgE. We also show that EndoS only hydrolyzes the glycan moiety on native but not denatured IgG. Thus, SpeB has a broad immunoglob...

journal_title：Infection and immunity

authors： Collin M,Olsén A

更新日期：2001-11-01 00:00:00

abstract：:Our knowledge of pathogenesis has benefited from a better understanding of the roles of specific virulence factors in disease. To determine the role of the virulence factor ZapA, a 54-kDa metalloproteinase of Proteus mirabilis, in prostatitis, rats were infected with either wild-type (WT) P. mirabilis or its isogenic ...

journal_title：Infection and immunity

authors： Phan V,Belas R,Gilmore BF,Ceri H

更新日期：2008-11-01 00:00:00

abstract：:PtlH is an essential component of the Ptl system, the type IV transporter responsible for secretion of pertussis toxin (PT) across the outer membrane of Bordetella pertussis. The nine Ptl proteins are believed to interact to form a membrane-spanning apparatus through which the toxin is secreted. In this study, we moni...

journal_title：Infection and immunity

authors： Verma A,Burns DL

更新日期：2007-05-01 00:00:00

abstract：:Erysipelothrix rhusiopathiae is a primary pathogen of swine and turkeys and sporadic cause of disease in a variety of other hosts, including humans. A genomic library of the highly virulent strain of E. rhusiopathiae E1-6P was constructed in the expression-cloning vector lambda gt11 and screened with serum from a pig ...

journal_title：Infection and immunity

authors： Galán JE,Timoney JF

更新日期：1990-09-01 00:00:00

abstract：:Streptococcus pneumoniae infections of the lung are associated with significant damage to the alveolar epithelium. Host phagocytes and pneumolysin, a cytolytic toxin of S. pneumoniae, are believed to contribute to this cellular damage, yet experiments in which these elements are absent demonstrate the presence of an a...

journal_title：Infection and immunity

authors： Duane PG,Rubins JB,Weisel HR,Janoff EN

更新日期：1993-10-01 00:00:00

abstract：:The yield of infectious Chlamydia trachomatis was analyzed in human (HeLa) and mouse (McCoy) cell lines treated with the human interferon (IFN) subtypes IFN-alpha A and IFN-alpha D, with their hybrids [IFN-alpha AD (BglII), IFN-alpha AD (PvuII), and IFN-alpha DA (BglII)] constructed in vitro from their expression plas...

journal_title：Infection and immunity

authors： de la Maza LM,Peterson EM,Goebel JM,Fennie CW,Czarniecki CW

更新日期：1985-03-01 00:00:00

abstract：:Evidence is presented that the chronicity of infection in CBA mice after injection of Brucella abortus 19 is related to a number of factors: (i) the relative resistance of B. abortus to macrophage killing, which allowed some bacteria to survive the peak of macrophage activity occurring at 14 days; (ii) the decline in ...

journal_title：Infection and immunity

authors： Cheers C,Pagram F

更新日期：1979-02-01 00:00:00

abstract：:In this study we have characterized the association of a polysaccharide-deficient, lipid-rich lipopolysaccharide (LPS) with rabbit erythrocytes (RaRBC). With polymyxin B sulfate-mediated hemolysis as a probe, we have shown that Salmonella minnesota R595 LPS interacts with RaRBC in two distinguishable steps. The first ...

journal_title：Infection and immunity

authors： Carr C Jr,Morrison DC

更新日期：1984-02-01 00:00:00

abstract：:Free-living amoebae of the genus Acanthamoeba can cause severe and chronic infections in humans, mainly localized in immune privileged sites, such as the brain and the eye. Monocytes/macrophages are thought to be involved in Acanthamoeba infections, but little is known about how these facultative parasites influence t...

journal_title：Infection and immunity

authors： Mattana A,Sanna M,Cano A,Delogu G,Erre G,Roberts CW,Henriquez FL,Fiori PL,Cappuccinelli P

更新日期：2016-09-19 00:00:00

abstract：:The adenylate cyclase-hemolysin of Bordetella pertussis consists of a cell-invasive N-terminal adenylate cyclase domain linked to a C-terminal RTX hemolysin containing extensive glycine-rich repeats. The toxin is an essential virulence factor required in the initial stages of infection. Adenylate cyclase-hemolysin was...

journal_title：Infection and immunity

authors： Betsou F,Sebo P,Guiso N

更新日期：1995-09-01 00:00:00

abstract：:Resistance to phagocytosis is a hallmark of virulent Streptococcus pyogenes (group A streptococcus). Surface-bound C5a peptidase reduces recruitment of phagocytes to the site of infection, and hyaluronic acid capsules and/or the M protein limit the uptake of streptococci. In this study the relative impact of M and M-l...

journal_title：Infection and immunity

authors： Ji Y,Schnitzler N,DeMaster E,Cleary P

更新日期：1998-11-01 00:00:00