Role of fimbriae in Porphyromonas gingivalis invasion of gingival epithelial cells.

abstract：:TB10.4 is a newly identified antigen of Mycobacterium tuberculosis recognized by human and murine T cells upon mycobacterial infection. Here, we show that immunization with Mycobacterium bovis BCG induces a strong, genetically controlled, Th1 immune response against TB10.4 in mice. BALB/c and C57BL/6 strains behave as...

journal_title：Infection and immunity

authors： Hervas-Stubbs S,Majlessi L,Simsova M,Morova J,Rojas MJ,Nouzé C,Brodin P,Sebo P,Leclerc C

更新日期：2006-06-01 00:00:00

abstract：:Salmonella typhimurium SH5014 porins induce the release of tumor necrosis factor alpha (TNF-alpha), interleukin 1 alpha (IL-1 alpha), and IL-6 by human monocytes and of gamma interferon (IFN-gamma) and IL-4 by human lymphocytes. Porins at 1 microgram/ml induce the greatest release of TNF-alpha, IL-1 alpha, and IL-6 by...

journal_title：Infection and immunity

authors： Galdiero F,de L'ero GC,Benedetto N,Galdiero M,Tufano MA

更新日期：1993-01-01 00:00:00

abstract：:Studies of mice suggest that pneumococcal proteins, including PspA, pneumolysin, PsaA, and CbpA, are promising vaccine candidates. To determine whether these proteins are good mucosal immunogens in humans, adenoidal lymphocytes from 20 children who had adenoidectomies were isolated and tested by ELISpot for antigen-sp...

journal_title：Infection and immunity

authors： Zhang Q,Choo S,Finn A

更新日期：2002-10-01 00:00:00

abstract：:Studies of active immunization against Helicobacter pylori indicate that antibodies play a minor role in immunity. There is also evidence, however, that the translocation of antibodies in the stomach may be insufficient to achieve functional antibody levels in the gastric lumen. We have used a suckling mouse model of ...

journal_title：Infection and immunity

authors： Gorrell RJ,Robins-Browne RM

更新日期：2009-11-01 00:00:00

abstract：:Aeromonas salmonicida causes furunculosis in salmonids and is a threat to Atlantic salmon aquaculture. The epithelial surfaces that the pathogen colonizes are covered by a mucus layer predominantly comprised of secreted mucins. By using mass spectrometry to identify mucin glycan structures with and without enzymatic r...

journal_title：Infection and immunity

authors： Padra JT,Sundh H,Sundell K,Venkatakrishnan V,Jin C,Samuelsson T,Karlsson NG,Lindén SK

更新日期：2017-07-19 00:00:00

abstract：:A canine distemper virus (CDV), DESIGNATED R252, originally recovered from a dog with demyelinating encephalomyelitis was shown to reproduce this disease in gnotobiotic dogs with a high incidence as compared to other CDV strains, which produced an acute fatal infection. In this investigation, R252 was propagated for t...

journal_title：Infection and immunity

authors： Confer AW,Kahn DE,Koestner A,Krakowka S

更新日期：1975-04-01 00:00:00

abstract：:Despite the autotransporter (AT) moniker, AT secretion appears to involve the function of periplasmic chaperones. We identified four periplasmic proteins that specifically bound to plasmid-encoded toxin (Pet), an AT produced by enteroaggregative Escherichia coli (EAEC). These proteins include the 17-kDa Skp chaperone ...

journal_title：Infection and immunity

authors： Tapia-Pastrana G,Chavez-Dueñas L,Lanz-Mendoza H,Teter K,Navarro-García F

更新日期：2012-07-01 00:00:00

abstract：:An analysis of which component of lipopolysaccharide, the lipid or the polysaccharide, is mitogenic for mouse B-lymphocytes has been performed. A purified glycolipid derived from a rough mutant of Salmonella minnesota (R595) that does not contain any o-polysaccharide at all is more mitogenic than an intact lipopolysac...

journal_title：Infection and immunity

authors： Rosenstreich DL,Nowotny A,Chused T,Mergenhagen SE

更新日期：1973-09-01 00:00:00

abstract：:Pneumolysin, the cholesterol-dependent cytolysin of Streptococcus pneumoniae, induces inflammatory and apoptotic events in mammalian cells. Toll-like receptor 4 (TLR4) confers resistance to pneumococcal infection via its interaction with pneumolysin, but the underlying mechanisms remain to be identified. In the presen...

journal_title：Infection and immunity

authors： Srivastava A,Henneke P,Visintin A,Morse SC,Martin V,Watkins C,Paton JC,Wessels MR,Golenbock DT,Malley R

更新日期：2005-10-01 00:00:00

abstract：:Studies conducted with F1 and F2 progeny of crosses between strains of inbred mice that differ greatly in their capacity to make an antibody response to type III pneumococcal polysaccharide, dextran B-1355, and lipopolysaccharide from Escherichia coli 0113 have shown that multiple genes influence the magnitude of the ...

journal_title：Infection and immunity

authors： Baker PJ,Rudbach JA,Prescott B,Caldes G,Evans C,Stashak PW

更新日期：1984-07-01 00:00:00

abstract：:The effects of passive administration of neutralizing monoclonal antibodies (MAB) to respiratory syncytial virus glycoproteins (GP90 and VP70) was evaluated in cotton rats challenged with respiratory syncytial virus. Animals injected with MAB to VP70 had lower mean viral titers in lung tissues than did controls (log10...

journal_title：Infection and immunity

authors： Walsh EE,Schlesinger JJ,Brandriss MW

更新日期：1984-02-01 00:00:00

abstract：:Nineteen of 22 female mice (CF1 strain) inoculated intragastrically with Treponema hyodysenteriae developed cecal and colonic lesions consisting of catarrhal inflammation, edema, and occasional hemorrhage. ...

journal_title：Infection and immunity

authors： Joens LA,Glock RD

更新日期：1979-08-01 00:00:00

abstract：:A substance with potent decomplementation activity was isolated from staphylococcal culture supernatants by polyethylene glycol precipitation, DEAE-ion-exchange and Sephacryl chromatography, and preparative sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The purified substance exhibited all the characterist...

journal_title：Infection and immunity

authors： Bhakdi S,Muhly M

更新日期：1985-01-01 00:00:00

abstract：:Exoenzyme S (ExoS), an ADP-ribosylating enzyme produced by the opportunistic pathogen Pseudomonas aeruginosa, is directly translocated into eukaryotic cells by bacterial contact. Within the cell, ExoS ADP-ribosylates the cell signaling protein Ras and causes inhibition of DNA synthesis and alterations in cytoskeletal ...

journal_title：Infection and immunity

authors： Olson JC,Fraylick JE,McGuffie EM,Dolan KM,Yahr TL,Frank DW,Vincent TS

更新日期：1999-06-01 00:00:00

abstract：:While gamma/delta T cells are involved in host defense and immunopathology in a variety of infectious diseases, their precise role is not yet clearly defined. In the absence of gamma/delta T cells, mice die after infection with a dose of Listeria monocytogenes that is not lethal in immunologically intact animals. Morb...

journal_title：Infection and immunity

authors： Skeen MJ,Rix EP,Freeman MM,Ziegler HK

更新日期：2001-12-01 00:00:00

abstract：:Extracts of specific granules and azurophil granules from human neutrophils were tested for their bactericidal activity against various lipopolysaccharide mutants of Salmonella typhimurium LT-2. Three purified granule populations, one specific and two azurophil, were obtained by isopycnic centrifugation of homogenized...

journal_title：Infection and immunity

authors： Rest RF,Cooney MH,Spitznagel JK

更新日期：1978-01-01 00:00:00

abstract：:Actinlike material was obtained from disrupted Pseudomonas aeruginosa cells by a modification of the method of Hancock and Nikaido (J. Bacteriol. 136:381-390) for isolating outer membrane vesicles. Pelleted membranes were dissolved in Laemmli sample buffer and electrophoresed in parallel lanes with purified rabbit ske...

journal_title：Infection and immunity

authors： Berk RS,Moon M,Higbee R,Cramer C,Roher A,Weis M,Hazlett L

更新日期：1985-11-01 00:00:00

abstract：:Hydrogen sulfide (H(2)S) is a major metabolic end product detected in deep periodontal pockets that is produced by resident periodontopathic microbiota associated with the progression of periodontitis. Treponema denticola, a member of the subgingival biofilm at disease sites, produces cystalysin, an enzyme that catabo...

journal_title：Infection and immunity

authors： Chu L,Dong Z,Xu X,Cochran DL,Ebersole JL

更新日期：2002-03-01 00:00:00

abstract：:The results show that Listeria monocytogenes, Francisella tularensis, and Salmonella typhimurium are facultative intracellular bacteria with a capacity to invade and grow in nonphagocytic cells in vivo. In the liver, all of these pathogens were seen to invade and to multiply extensively in hepatocytes. In all three ca...

journal_title：Infection and immunity

authors： Conlan JW,North RJ

更新日期：1992-12-01 00:00:00

abstract：:Susceptibility to the lethal toxicity of endotoxin in mice pretreated with emulsified trehalose-6,6'-dimycolate was enhanced by (i) increasing the oil concentration while keeping the Tween concentration constant; and (ii) decreasing the Tween concentration, while keeping the oil concentration constant. ...

journal_title：Infection and immunity

authors： Yarkoni E,Rapp HJ

更新日期：1979-05-01 00:00:00

abstract：:Salmonella enterica serovar Enteritidis (S. Enteritidis) is a major etiologic agent of nontyphoid salmonellosis in the United States. S. Enteritidis persistently and silently colonizes the intestinal and reproductive tract of laying hens, resulting in contaminated poultry products. The consumption of contaminated poul...

journal_title：Infection and immunity

authors： McKelvey JA,Yang M,Jiang Y,Zhang S

更新日期：2014-12-01 00:00:00

abstract：:Legionella pneumophila has been shown to possess multiple genetic loci that play roles in its ability to survive within host cells. The mil (macrophage-specific infectivity loci) mutants of L. pneumophila exhibit a spectrum of defects in intracellular survival in and cytopathogenicity to macrophages and alveolar epith...

journal_title：Infection and immunity

authors： Harb OS,Abu Kwaik Y

更新日期：2000-01-01 00:00:00

abstract：:Arg-gingipains are extracellular cysteine proteases produced by the gram-negative periodontal pathogen Porphyromonas gingivalis and are encoded by rgpA and rgpB. Three Arg-gingipains, heterodimeric high-molecular-mass Arg-gingipain HRgpA comprising the alpha-catalytic chain and the beta-adhesin chain, the monomeric so...

journal_title：Infection and immunity

authors： Rangarajan M,Hashim A,Aduse-Opoku J,Paramonov N,Hounsell EF,Curtis MA

更新日期：2005-08-01 00:00:00

abstract：:Length and restriction site polymorphism within a 2.8-kb threonine-rich open reading frame from Cryptosporidium parvum was identified and used to determine the genotypes of isolates from calves and humans. In agreement with observations of other genetic loci, all calf isolates were identical at this locus. In contrast...

journal_title：Infection and immunity

authors： Carraway M,Tzipori S,Widmer G

更新日期：1997-09-01 00:00:00

abstract：:We have developed an animal model for studying mycobacterial pathogenesis using Mycobacterium marinum and the goldfish, Carassius auratus. Goldfish are injected intraperitoneally with doses between 10(2) and 10(9) CFU of M. marinum organisms. Depending on the dose of M. marinum organisms administered, an acute or chro...

journal_title：Infection and immunity

authors： Talaat AM,Reimschuessel R,Wasserman SS,Trucksis M

更新日期：1998-06-01 00:00:00

abstract：:Herein we report an important role for the ferric uptake regulator (Fur) in the resistance of Salmonella enterica serovar Typhimurium to the reactive nitrogen species produced by inducible nitric oxide (NO) synthase in an NRAMP1(r) murine model of acute systemic infection. The expression of fur protected Salmonella gr...

journal_title：Infection and immunity

authors： Husain M,Jones-Carson J,Liu L,Song M,Saah JR,Troxell B,Mendoza M,Hassan H,Vázquez-Torres A

更新日期：2014-01-01 00:00:00

abstract：:Patients that have suffered a major injury may sustain a period of immunocompromise and altered Th1/Th2 cytokine balance that can predispose them to opportunistic infections. Pseudomonas aeruginosa is frequently a causative organism for nosocomial infections in critically ill patients and is associated with high morta...

journal_title：Infection and immunity

authors： Murphey ED,Herndon DN,Sherwood ER

更新日期：2004-12-01 00:00:00

abstract：:The effect of indomethacin on the net intestinal accumulation of fluid induced by Escherichia coli heat-stable (ST) enterotoxin in the infant mouse model was examined. Indomethacin, when administered with ST enterotoxin, caused a striking decrease in net intestinal fluid accumulation. This inhibition of ST activity wa...

journal_title：Infection and immunity

authors： Madsen GL,Knoop FC

更新日期：1978-10-01 00:00:00

abstract：:Previous work in our laboratory has shown that corticosterone increases the susceptibility of macrophages from Bcgs mice to the growth of Mycobacterium avium. The innate antimycobacterial activity of macrophages from Bcgr mice was not affected by corticosterone. In contrast to the differential effect of corticosterone...

journal_title：Infection and immunity

authors： Brown DH,LaFuse W,Zwilling BS

更新日期：1995-08-01 00:00:00

abstract：:An improved enterocyte adhesion assay has been used to examine a collection of 44 strains of enterotoxigenic Escherichia coli (ETEC) for their ability to adhere to the brush border of isolated human duodenal enterocytes. Fourteen strains showed good adhesion; in each case the ability to adhere correlated with the prod...

journal_title：Infection and immunity

authors： Knutton S,Lloyd DR,Candy DC,McNeish AS

更新日期：1985-06-01 00:00:00