Monitoring F1651 P-like fimbria expression at the single-cell level reveals a highly heterogeneous phenotype.

abstract：:Deoxyribonucleic acid (DNA) base composition, as measured by guanine plus cytosine (G + C) content, was determined in 17 strains of Sporothrix schenckii and Ceratocystis species. The average G + C content for S. schenckii was 54.7 +/- 0.2 mol%. No strain of Ceratocystis, with the exception of C. minor, gave values for...

journal_title：Infection and immunity

authors： Mendonça-Hagler LC,Travassos LR,Lloyd KO,Phaff HJ

更新日期：1974-05-01 00:00:00

abstract：:In order to evaluate during experimental Trypanosoma brucei infections the potential role of tumor necrosis factor alpha (TNF-alpha) in the host-parasite interrelationship, C57BL/6 TNF-alpha knockout mice (TNF-alpha-/-) as well as C57BL/6 wild-type mice were infected with pleomorphic T. brucei AnTat 1.1 E parasites. I...

journal_title：Infection and immunity

authors： Magez S,Radwanska M,Beschin A,Sekikawa K,De Baetselier P

更新日期：1999-06-01 00:00:00

abstract：:Mortality associated with acute lung injury (ALI) induced by lipopolysaccharide (LPS) remains high in humans, warranting improved treatment and prevention strategies. ALI is characterized by the expression of proinflammatory mediators and extensive neutrophil influx into the lung, followed by severe lung damage. Under...

journal_title：Infection and immunity

authors： Jeyaseelan S,Chu HW,Young SK,Worthen GS

更新日期：2004-12-01 00:00:00

abstract：:The immunogenic and adjuvant properties of Brucella abortus and Escherichia coli lipopolysaccharides (LPSs) were studied in endotoxin-responsive, athymic, and euthymic BALB/c mice and in responsive C3H/HeAu mice and congenic nonresponsive C3H/HeJ mice. Consistent with previous reports, E. coli LPS did not stimulate si...

journal_title：Infection and immunity

authors： Moreno E,Kurtz RS,Berman DT

更新日期：1984-10-01 00:00:00

abstract：:A recombinant plasmid containing a 6.5-kb fragment of nontypeable Haemophilus influenzae (NTHI) chromosomal DNA was shown to confer a hemoglobin-haptoglobin-binding phenotype on Escherichia coli. Use of a mini-Tn10kan transposon for random insertion mutagenesis of this recombinant plasmid allowed localization of the N...

journal_title：Infection and immunity

authors： Maciver I,Latimer JL,Liem HH,Muller-Eberhard U,Hrkal Z,Hansen EJ

更新日期：1996-09-01 00:00:00

abstract：:In assessing the host cell range of bovine parvoviruses, these viruses were found to replicate optimally in actively dividing bovine fetal lung and spleen cells. Other primary bovine fetal cells supported growth to a lesser extent, but bovine line cells and line cells of other animal species tested did not. Minimal in...

journal_title：Infection and immunity

authors： Daugharty H,Warfield DT,Nemingway ND,Casey HL

更新日期：1973-03-01 00:00:00

abstract：:Active immunization with Escherichia coli-expressed recombinant outer surface protein C (OspC) of Borrelia burgdorferi has been demonstrated to confer protection against a tick-transmitted infection on laboratory animals. A previous study in this laboratory showed that OspC antibody raised against a denatured immunoge...

journal_title：Infection and immunity

authors： Gilmore RD Jr,Mbow ML

更新日期：1999-10-01 00:00:00

abstract：:The gastric spirillum Helicobacter felis, originally isolated from the cat stomach, colonizes the stomachs of germfree rats. Studies were designed to examine the pathological and serological responses of germfree rats inoculated orally with H. felis. At 2 weeks postinoculation, the gastric mucosa of germfree rats had ...

journal_title：Infection and immunity

authors： Fox JG,Lee A,Otto G,Taylor NS,Murphy JC

更新日期：1991-03-01 00:00:00

abstract：:Regulation of the synthesis of Vi polysaccharide, a major virulence determinant in Salmonella enterica serotype Typhi, is under the control of two regulatory systems, ompR-envZ and rscB-rscC, which respond to changes in osmolarity. Some serotype Typhi strains exhibit overexpression of Vi polysaccharide, which masks cl...

journal_title：Infection and immunity

authors： Santander J,Wanda SY,Nickerson CA,Curtiss R 3rd

更新日期：2007-03-01 00:00:00

abstract：:Based upon the lipopolysaccharide (LPS) structure and antigenicity of Shigella group B, a strategy for broad cross-protection against 14 Shigella flexneri serotypes was designed. This strategy involves the use of two S. flexneri serotypes (2a and 3a), which together bear the all of the major antigenic group factors of...

journal_title：Infection and immunity

authors： Noriega FR,Liao FM,Maneval DR,Ren S,Formal SB,Levine MM

更新日期：1999-02-01 00:00:00

abstract：:Vibrio cholerae O1 has two biotypes, El Tor and Classical, and the latter is now presumed to be extinct in nature. Under carbohydrate-rich growth conditions, El Tor biotype strains produce the neutral fermentation end product 2,3-butanediol (2,3-BD), which prevents accumulation of organic acids from mixed acid ferment...

journal_title：Infection and immunity

authors： Bari W,Song YJ,Yoon SS

更新日期：2011-08-01 00:00:00

abstract：:Natural killer (NK) cells are critically involved in the early immune response against various intracellular pathogens, including Coxiella burnetii and Chlamydia psittaciChlamydia-infected NK cells functionally mature, induce cellular immunity, and protect themselves by killing the bacteria in secreted granules. Here,...

journal_title：Infection and immunity

authors： Matthiesen S,Zaeck L,Franzke K,Jahnke R,Fricke C,Mauermeir M,Finke S,Lührmann A,Knittler MR

更新日期：2020-10-19 00:00:00

abstract：:We previously showed that cytotoxic necrotizing factor 1 (CNF1) contributes to Escherichia coli K1 invasion of human brain microvascular endothelial cells (HBMEC) and interacts with the receptor on the surface of HBMEC. CNF1 is the cytoplasmic protein, and it remains incompletely understood how CNF1 is secreted across...

journal_title：Infection and immunity

authors： Yu H,Kim KS

更新日期：2010-02-01 00:00:00

abstract：:Bacterial products from gram-positive bacteria, such as peptidoglycan, teichoic acid, and toxins, activate mononuclear cells to produce tumor necrosis factor alpha (TNF). The present study evaluated the release of soluble cell wall components from Staphylococcus epidermidis capable of inducing TNF after exposure of th...

journal_title：Infection and immunity

authors： Mattsson E,Van Dijk H,Verhoef J,Norrby R,Rollof J

更新日期：1996-10-01 00:00:00

abstract：:Three-month-old male Crl:CD1(ICR)BR and C3H/HeJ mice were fed chow containing Candida albicans for 14 days, while similar control mice were fed regular food. Stool cultures were done for all mice before and after administration of the special diet. Stool cultures were repeated 48 h, 1 week, and 1 and 3 months after st...

journal_title：Infection and immunity

authors： Samonis G,Anaissie EJ,Rosenbaum B,Bodey GP

更新日期：1990-06-01 00:00:00

abstract：:Mannan (MAN) extracted from Candida albicans 20A was investigated for its potential as an antigen in the detection of cell-mediated immunity (CMI) in vivo and in vitro and for its ability to modulate CMI when administered intravenously (i.v.). CBA/J mice were either immunized as adults by the cutaneous inoculation of ...

journal_title：Infection and immunity

authors： Domer JE,Garner RE,Befidi-Mengue RN

更新日期：1989-03-01 00:00:00

abstract：:Clostridium perfringens enterotoxin caused a 26 to 41% reduction in the rate of oxygen consumption by rat liver mitochondria when various tricarboxylic acid cycle intermediates were used as substrate. However, P/O ratios were unaltered. ...

journal_title：Infection and immunity

authors： McDonel JL,Duncan CL

更新日期：1977-03-01 00:00:00

abstract：:A lectin with strong hemagglutinating activity toward erythrocytes of several animal species was isolated from an 18-h culture supernatant of a diarrheagenic strain, V2, of non-O1 Vibrio cholerae. The hemagglutinin (HA) was purified free of lipopolysaccharide by salt fractionation followed by gel filtration, hydrophob...

journal_title：Infection and immunity

authors： Banerjee KK,Ghosh AN,Dutta-Roy K,Pal SC,Ghose AC

更新日期：1990-11-01 00:00:00

abstract：:The Haemophilus ducreyi 35000HP genome encodes a homolog of the CpxRA two-component cell envelope stress response system originally characterized in Escherichia coli. CpxR, the cytoplasmic response regulator, was shown previously to be involved in repression of the expression of the lspB-lspA2 operon (M. Labandeira-Re...

journal_title：Infection and immunity

authors： Labandeira-Rey M,Brautigam CA,Hansen EJ

更新日期：2010-11-01 00:00:00

abstract：:Three groups of cattle, each group comprising six animals, were inoculated intravenously with populations of bloodstream forms of Trypanosoma vivax. The first group received T. vivax clone ILDat 1.3 derived from an isolate from Nigeria, while the other two received T. vivax stocks IL 1875 or IL 2133 isolated from Coas...

journal_title：Infection and immunity

authors： Nantulya VM,Musoke AJ,Moloo SK

更新日期：1986-11-01 00:00:00

abstract：:Escherichia coli O45 isolates associated with swine postweaning diarrhea in Québec were characterized with respect to virulence determinants genetically and investigated for their attaching and effacing (A/E) activities by experimental inoculation of gnotobiotic piglets and by the HEp-2 cell adherence assay. All of 32...

journal_title：Infection and immunity

authors： Zhu C,Harel J,Jacques M,Desautels C,Donnenberg MS,Beaudry M,Fairbrother JM

更新日期：1994-10-01 00:00:00

abstract：:Porphyromonas gingivalis is a gram-negative anaerobic bacterium that is considered the key etiologic agent of chronic periodontitis. Arg- and Lys-gingipain cysteine proteinases produced by P. gingivalis are key virulence factors and are believed to be essential for significant tissue component degradation, leading to ...

journal_title：Infection and immunity

authors： Andrian E,Grenier D,Rouabhia M

更新日期：2004-08-01 00:00:00

abstract：:Blood mononuclear cells (lymphocytes and monocytes) were isolated from infected calves during in vivo control of acute anaplasmosis and cultured with Anaplasma marginale organisms. Supernatants from the cultures reduced the proportion of erythrocytes containing viable A. marginale in vitro, indicating that an antibody...

journal_title：Infection and immunity

authors： Wyatt CR,Davis WC,Knowles DP,Goff WL,Palmer GH,McGuire TC

更新日期：1996-11-01 00:00:00

abstract：:Mouse fibroblasts (L cells) were infected in suspension with Chlamydia psittaci (6BC) and then plated out on a solid substrate at a density of 80 cells per cm2 so that the effect of chlamydial infection on the division of single host cells and their progeny could be determined. Uninfected L cells multiplied with a mea...

journal_title：Infection and immunity

authors： Horoschak KD,Moulder JW

更新日期：1978-01-01 00:00:00

abstract：:V beta 10(+) and V beta 14(+) T cells were selectively increased 7 to 14 days following infection in the lungs of naive mice infected with Histoplasma capsulatum. Following secondary challenge of immune mice, V beta 1(+) and V beta 8.1(+) cells were sporadically increased. Elimination of V beta 10(+) and V beta 14(+) ...

journal_title：Infection and immunity

authors： Deepe GS Jr,Gibbons RS,Ward SR

更新日期：2002-03-01 00:00:00

abstract：:Toll-like receptor (TLR) signal transduction is a central component of the innate immune response to pathogenic challenge. Although recent studies have begun to elucidate differences in acquired immunity in tissues of the human female reproductive tract, there is a relative paucity of work regarding innate defense mec...

journal_title：Infection and immunity

authors： Pioli PA,Amiel E,Schaefer TM,Connolly JE,Wira CR,Guyre PM

更新日期：2004-10-01 00:00:00

abstract：:We have previously determined that complement receptors on human mononuclear phagocytes and complement component C3 in nonimmune serum mediate phagocytosis of the intracellular bacterial pathogen Mycobacterium leprae, the agent of leprosy. We have also determined that C3 fixes selectively to the major surface glycolip...

journal_title：Infection and immunity

authors： Schlesinger LS,Horwitz MA

更新日期：1994-01-01 00:00:00

abstract：:Candida albicans is a ubiquitous mucosal commensal that is normally prevented from causing acute or chronic invasive disease. Neutrophils contribute to protection in oral infection but exacerbate vulvovaginal candidiasis. To dissect the role of neutrophils during mucosal candidiasis, we took advantage of a new, transp...

journal_title：Infection and immunity

authors： Gratacap RL,Scherer AK,Seman BG,Wheeler RT

更新日期：2017-08-18 00:00:00

abstract：:We report here on the isolation of isogenic strains of Aeromonas hydrophila AB3 deleted for a segment of the aerolysin gene. All aer mutants obtained lacked the 49-kilodalton aerolysin gene product and were neither hemolytic for blood erythrocytes nor cytotoxic for Chinese hamster ovary tissue culture cells. One such ...

journal_title：Infection and immunity

authors： Chakraborty T,Huhle B,Hof H,Bergbauer H,Goebel W

更新日期：1987-09-01 00:00:00

abstract：:Polyamines such as putrescine, spermidine, and cadaverine are small, polycationic molecules that are required for optimal growth in all cells. The intracellular concentrations of these molecules are maintained by de novo synthesis and transport pathways. The human pathogen Streptococcus pneumoniae possesses a putative...

journal_title：Infection and immunity

authors： Ware D,Jiang Y,Lin W,Swiatlo E

更新日期：2006-01-01 00:00:00