Transposon Sequencing of Brucella abortus Uncovers Essential Genes for Growth In Vitro and Inside Macrophages.

abstract：:In the present investigation we studied the nature of a Shigella flexneri O antigen, the type III antigen. No structural entity has yet been attributed to this antigen. Phenol-water-extracted lipopolysaccharides (LPSs) from all S. flexneri serotypes possessing either group 6 antigen or both type III antigen and group ...

journal_title：Infection and immunity

authors： Carlin NI,Wehler T,Lindberg AA

更新日期：1986-07-01 00:00:00

abstract：:The purpose of these experiments was to study the early response of mouse foot pads to Mycobacterium leprae. To accomplish this, mice were inoculated in both foot pads with large and small numbers of organisms. The animals were sacrificed at intervals from 2 hr to 27 days after inoculation. The microscopical results, ...

journal_title：Infection and immunity

authors： Evans MJ,Newton HE,Levy L

更新日期：1973-01-01 00:00:00

abstract：:Cigarette smoke exposure increases the risk of pulmonary and invasive infections caused by Streptococcus pneumoniae, the most commonly isolated organism from patients with community-acquired pneumonia. Despite this association, the mechanisms by which cigarette smoke exposure diminishes host defense against S. pneumon...

journal_title：Infection and immunity

authors： Phipps JC,Aronoff DM,Curtis JL,Goel D,O'Brien E,Mancuso P

更新日期：2010-03-01 00:00:00

abstract：:This study determined the role of crl in the production of curli by, the hemagglutination activity of, and fibronectin binding by avian pathogenic Escherichia coli chi 7122. Curli, an extracellular structure that binds fibronectin, was recently described (A. Olsén, A. Jonsson, and S. Normark, Nature [London] 338:652-6...

journal_title：Infection and immunity

authors： Provence DL,Curtiss R 3rd

更新日期：1992-11-01 00:00:00

abstract：:Adhesion of Trichomonas vaginalis is believed to be dependent on four adhesion proteins, which are thought to bind to vaginal epithelial cells in a specific manner with a ligand-receptor type of interaction. However, the specific receptors on the host cell have not yet been identified. In this work, the ability of the...

journal_title：Infection and immunity

authors： Addis MF,Rappelli P,Fiori PL

更新日期：2000-07-01 00:00:00

abstract：:The she gene of Shigella flexneri 2a, which also harbors the internal enterotoxin genes set1A and set1B (F. R. Noriega, GenBank accession no. U35656, 1995) encodes a homolog of the virulence-related immunoglobulin A (IgA) protease-like family of secreted proteins, Tsh, EspC, SepA, and Hap, from an avian pathogenic Esc...

journal_title：Infection and immunity

authors： Rajakumar K,Sasakawa C,Adler B

更新日期：1997-11-01 00:00:00

abstract：:The need for agents designed to modify immune response in the treatment of patients with viral infection, immunodeficiency, or cancer prompted the present study on the mechanisms of action of isoprinosine, a compound developed for antiviral use and whose therapeutic activity may involve the immune system. The effect o...

journal_title：Infection and immunity

authors： Hadden JW,Hadden EM,Coffey RG

更新日期：1976-02-01 00:00:00

abstract：:Vibrio mimicus 61892, isolated in 1977 from a case of watery diarrhea in Bangladesh, produces an enterotoxin which possesses activity in Y-1 mouse adrenal cells and in rabbit ileal loops which is identical to the prototype cholera toxin (CT) produced by Vibrio cholerae 569B. The neutralization of the adrenal cell acti...

journal_title：Infection and immunity

authors： Spira WM,Fedorka-Cray PJ

更新日期：1983-11-01 00:00:00

abstract：:Penetration of the intestinal mucosa at areas of Peyer's patches is an important first step for Salmonella typhimurium to produce lethal systemic disease in mice. However, mutations in genes that are important for intestinal invasion result in only moderately decreased virulence of S. typhimurium for mice. Here we rep...

journal_title：Infection and immunity

authors： Bäumler AJ,Tsolis RM,Valentine PJ,Ficht TA,Heffron F

更新日期：1997-06-01 00:00:00

abstract：:In this study, we investigated a potential requirement of two-component signal transduction systems for acid resistance in Helicobacter pylori. In comparison to a wild-type strain, isogenic strains with null mutations in either HP0165 or HP1364 histidine kinases were impaired in their ability to grow at pH 5.0. The gr...

journal_title：Infection and immunity

authors： Loh JT,Cover TL

更新日期：2006-05-01 00:00:00

abstract：:We have previously demonstrated the existence of Klebsiella pneumoniae clinical isolates deficient in the lipopolysaccharide O side chain, the major factor for resistance to complement-mediated killing in this bacterial species. These isolates are complement resistant, and their mechanisms to resist complement were in...

journal_title：Infection and immunity

authors： Alvarez D,Merino S,Tomás JM,Benedí VJ,Albertí S

更新日期：2000-02-01 00:00:00

abstract：:The localization and population levels of the indigenous bacterial flora of conventional rats were investigated by cultural and histological techniques. Lactobacilli predominate in the stomach and upper part of the small intestine and associate with keratinized cells of the nonglandular portion of stomach. Mixtures of...

journal_title：Infection and immunity

authors： Morotomi M,Watanabe T,Suegara N,Kawai Y,Mutai M

更新日期：1975-05-01 00:00:00

abstract：:Borrelia burgdorferi undergoes differential gene expression during transmission from its tick vector to a vertebrate host. The addition of blood to a spirochete culture at 35 degrees C for 48 h had a dramatic effect on gene expression of this organism. Utilizing B. burgdorferi whole genome DNA arrays, we compared the ...

journal_title：Infection and immunity

authors： Tokarz R,Anderton JM,Katona LI,Benach JL

更新日期：2004-09-01 00:00:00

abstract：:Two extremely oxygen-sensitive strains of Clostridium sp., designated Clostridium E and P, were obtained from digestive microflora of conventional mice and found to constitute a barrier against Shigella flexneri SF-2 when associated in vivo with Escherichia coli K-12. These and other simplified fractions of the conven...

journal_title：Infection and immunity

authors： Ducluzeau R,Ladire M,Callut C,Raibaud P,Abrams GD

更新日期：1977-08-01 00:00:00

abstract：:The cytokine response to the agent of human granulocytic ehrlichiosis (HGE) was assessed in a murine infection model and the role of gamma interferon (IFN-gamma), a cytokine that is crucial for host defenses against intracellular pathogens, was investigated by using IFN-gamma-deficient mice. The agent of HGE (aoHGE) i...

journal_title：Infection and immunity

authors： Akkoyunlu M,Fikrig E

更新日期：2000-04-01 00:00:00

abstract：:Patent filarial infection is associated with the downregulation of parasite-specific immune reactivity. In the present study, the relationship between in vitro parasite antigen-specific humoral and cellular immune responsiveness was investigated in Brugia pahangi-infected jirds and in jirds immunized with soluble anti...

journal_title：Infection and immunity

authors： Prier RC,Lammie PJ

更新日期：1988-12-01 00:00:00

abstract：:Protection against infection with virulent blood (trypomastigote) forms of Trypanosoma cruzi was accomplished in mice by immunization with culture (mainly epimastigote) forms killed by treatment with sodium perchlorate. Sodium chloride, used instead of sodium perchlorate, with all other conditions kept the same, faile...

journal_title：Infection and immunity

authors： Kierszenbaum F,Budzko DB

更新日期：1975-09-01 00:00:00

abstract：:Photobacterium damselae subsp. damselae causes infections and fatal disease in marine animals and in humans. Highly hemolytic strains produce damselysin (Dly) and plasmid-encoded HlyA (HlyA(pl)). These hemolysins are encoded by plasmid pPHDD1 and contribute to hemolysis and virulence for fish and mice. In this study, ...

journal_title：Infection and immunity

authors： Rivas AJ,Balado M,Lemos ML,Osorio CR

更新日期：2013-09-01 00:00:00

abstract：:Salmonella enterica serovar Typhimurium causes self-limiting gastroenteritis in humans and a typhoid-like disease in mice that serves as a model for typhoid infections in humans. A critical step in Salmonella pathogenesis is the invasion of enterocytes and M cells of the small intestine via expression of a type III se...

journal_title：Infection and immunity

authors： Boddicker JD,Jones BD

更新日期：2004-04-01 00:00:00

abstract：:Immunochemical analyses of soluble antigens derived from microaerophilous stationary phase cultures of Babesia bovis demonstrated that at least three parasite antigens were released in vitro. These antigens have molecular weights within the range of 37,000 to 40,000, fast electrophoretic mobility in the albumin and al...

journal_title：Infection and immunity

authors： James MA,Levy MG,Ristic M

更新日期：1981-01-01 00:00:00

abstract：:Actinomyces viscosus ATCC 15987 was examined for the presence of cell-associated levan by absorption of myeloma proteins with antilevan activity and direct immunofluorescence. Levan was not detectable on the surface of glucose-grown A. viscosus, but after a brief incubation of these cells with 5% sucrose, they were en...

journal_title：Infection and immunity

authors： Warner TN,Miller CH

更新日期：1978-02-01 00:00:00

abstract：:We identified, by two-dimensional electrophoretic analysis and microsequencing, a protein of Chlamydia trachomatis elementary bodies which corresponds to the polypeptide (pgp3) encoded by open reading frame 3 (ORF3). Amino acid analysis showed that the first residue (Gly) found in the native protein is the one encoded...

journal_title：Infection and immunity

authors： Comanducci M,Manetti R,Bini L,Santucci A,Pallini V,Cevenini R,Sueur JM,Orfila J,Ratti G

更新日期：1994-12-01 00:00:00

abstract：:The morphology and pathology of cultured mouse glomeruli were examined at the cellular and subcellular levels after infection with a physiological isotonic L-form of Streptococcus pyogenes type 12 or exposure to streptococcal lipoteichoic acid. These changes, as viewed by light microscopy, were identical regardless of...

journal_title：Infection and immunity

authors： Tomlinson K,Leon O,Panos C

更新日期：1983-12-01 00:00:00

abstract：:Chlamydia trachomatis L2 is an obligate intracellular microorganism with a unique biphasic life cycle. The extracellular form, the elementary body (EB), is infectious but metabolically inactive. Attachment of EBs to host cells is medicated by a heparan sulfate-like glycosaminoglycan. Following attachment, the EB is in...

journal_title：Infection and immunity

authors： Birkelund S,Johnsen H,Christiansen G

更新日期：1994-11-01 00:00:00

abstract：:The DNA oligomer 5'-d(TGCGGCCTCTCAGTCCCGCACTTTCATCTTCC)-3' specifically recognizes Haemophilus influenzae 16S rRNA. We report here the use of this oligonucleotide, with a fluorescein label tagged on its 5' end, as a probe for the in situ detection of nonencapsulated nontypeable H. influenzae in sections of adenoid tis...

journal_title：Infection and immunity

authors： Forsgren J,Samuelson A,Ahlin A,Jonasson J,Rynnel-Dagöö B,Lindberg A

更新日期：1994-02-01 00:00:00

abstract：:We identified a T-cell determinant of the 35-kDa antigen of Mycobacterium leprae which is discriminatory against cross-sensitization by its closely related homologue in Mycobacterium avium. From synthetic peptides covering the entire sequence, those with the highest affinity and permissive binding to purified HLA-DR m...

journal_title：Infection and immunity

authors： Wilkinson RJ,Wilkinson KA,Jurcevic S,Hills A,Sinha S,Sengupta U,Lockwood DN,Katoch K,Altman D,Ivanyi J

更新日期：1999-03-01 00:00:00

abstract：:Increased incidence of bovine tuberculosis (TB) in the United Kingdom caused by infection with Mycobacterium bovis is a cause of considerable economic loss to farmers and the government. The Eurasian badger (Meles meles) represents a wildlife source of recurrent M. bovis infections of cattle in the United Kingdom, and...

journal_title：Infection and immunity

authors： Clark S,Cross ML,Nadian A,Vipond J,Court P,Williams A,Hewinson RG,Aldwell FE,Chambers MA

更新日期：2008-08-01 00:00:00

abstract：:We have developed an in vitro assay to study the intramacrophage replication of Mycobacterium tuberculosis or Mycobacterium bovis BCG. In this assay, extracellular mycobacterial replication was avoided by using a small infecting inoculum and a new method for efficiently removing nonphagocytocytized bacilli. The abilit...

journal_title：Infection and immunity

authors： Zlotnik A,Crowle AJ

更新日期：1982-08-01 00:00:00

abstract：:The effects of treatment with live or inactivated Shope fibroma virus on host cell deoxyribonucleic acid (DNA) synthesis were determined. The incorporation of (3)H-thymidine into nuclear DNA was suppressed by both active and inactivated virus, although live virus was more effective. During the early phase of infection...

journal_title：Infection and immunity

authors： Chan JC,Hodes ME

更新日期：1973-04-01 00:00:00

abstract：:Streptococcus pneumoniae infection leads to multifold increases in sialyltransferase, galactosyltransferase, alpha 2-fucosyltransferase, and alpha 3-fucosyltransferase activity of rat liver. Such changes may reflect an increased demand for glycosylation of acute-phase proteins synthesized and secreted by the liver dur...

journal_title：Infection and immunity

authors： Canonico PG,Little JS,Powanda MC,Bostian KA,Beisel WR

更新日期：1980-07-01 00:00:00