Characterization of a Staphylococcus aureus surface virulence factor that promotes resistance to oxidative killing and infectious endocarditis.

abstract：:Attachment of Mycobacterium avium subsp. paratuberculosis to host tissue and penetration of mucosal surfaces are pivotal events in the pathogenesis of Johne's disease. Fibronectin (FN) binding is required for attachment and internalization of several mycobacteria by epithelial cells in vitro. The objective of this stu...

journal_title：Infection and immunity

authors： Secott TE,Lin TL,Wu CC

更新日期：2001-04-01 00:00:00

abstract：:Various factors affecting the aggregation of Actinomyces naeslundii strain 12104 were studied. When the pH of glucose-supplemented growth medium fell below 5.5, the cells aggregated and formed microbial masses which tenaciously adhered to the culture vessels. When the organism was cultured in the same medium in the ab...

journal_title：Infection and immunity

authors： Miller CH,Palenik CJ,Stamper KE

更新日期：1978-09-01 00:00:00

abstract：:Antibiotics suppressed development of aster yellows (AY) disease symptoms in plants of china aster [Callistephus chinensis (L.) Nees.] and annual chrysanthemum (Chrysanthemum carinatum, Schousb.). When inoculated chrysanthemum plants were treated by any of several techniques with tetracycline antibiotics or chloramphe...

journal_title：Infection and immunity

authors： Davis RE,Whitcomb RF

更新日期：1970-08-01 00:00:00

abstract：:The generation of nitric oxide (NO) by activated macrophages is believed to control mycobacterial infection in the murine system. In this study we examined the effect of Mycobacterium bovis BCG infection on the L-arginine-dependent NO pathway in J774.1 murine macrophages. We have confirmed previous results by demonstr...

journal_title：Infection and immunity

authors： Peteroy-Kelly M,Venketaraman V,Connell ND

更新日期：2001-09-01 00:00:00

abstract：:The short-term kinetics of fluoride uptake by cells from 20- to 22-h cultures of Streptococcus mutans strain 6715 were studied using rapid filtration and centrifugation techniques. Saline-suspended organisms were diluted with fluoride-containing solutions buffered at four different pH values (2.0, 4.0, 5.5, and 8.2). ...

journal_title：Infection and immunity

authors： Whitford GM,Schuster GS,Pashley DH,Venkateswarlu P

更新日期：1977-12-01 00:00:00

abstract：:Porphyromonas gingivalis is a major etiologic agent of periodontitis, a chronic inflammatory disease that ultimately results in the loss of the supporting tissues of the teeth. Previous work has demonstrated the usefulness of avirulent Salmonella enterica serovar Typhimurium strains as antigen delivery systems for pro...

journal_title：Infection and immunity

authors： Kozarov E,Miyashita N,Burks J,Cerveny K,Brown TA,McArthur WP,Progulske-Fox A

更新日期：2000-02-01 00:00:00

abstract：:Exposure of mononuclear cells from the mouse peritoneal cavity to interferon (IF)-containing mouse sera enhanced phagocytosis of colloidal carbon particles by the cells. The same effect was observed when the cells were exposed to IF-containing cell culture harvest free of serum. The magnitude of this effect of IF-cont...

journal_title：Infection and immunity

authors： Huang KY,Donahoe RM,Gordon FB,Dressler HR

更新日期：1971-11-01 00:00:00

abstract：:By screening a genomic lambda library of Streptococcus equi subsp. zooepidemicus, we have cloned and sequenced a gene, termed fnz, encoding a fibronectin (Fn)-binding protein called FNZ. On the basis of the deduced amino acid sequence of FNZ, the mature protein has a molecular mass of approximately 61 kDa. Analysis of...

journal_title：Infection and immunity

authors： Lindmark H,Jacobsson K,Frykberg L,Guss B

更新日期：1996-10-01 00:00:00

abstract：:Highly purified protein antigens are usually poor immunogens; in practice, adjuvants are needed to obtain satisfactory immune responses. Plasmodium yoelii 19-kDa merozoite surface protein 1 (MSP1(19)) is a weak antigen, but mice vaccinated with this antigen in strong adjuvants can survive an otherwise lethal parasite ...

journal_title：Infection and immunity

authors： Ogun SA,Dumon-Seignovert L,Marchand JB,Holder AA,Hill F

更新日期：2008-08-01 00:00:00

abstract：:Oral or intravenous inoculation of previously unexposed juvenile and adult ferrets with Campylobacter jejuni uniformly resulted in intestinal colonization lasting 2 to 12 days. Disease varied from mild to moderate diarrhea, which resolved in 2 to 3 days. Orally infected animals developed agglutinin titers of 8 to 256 ...

journal_title：Infection and immunity

authors： Bell JA,Manning DD

更新日期：1990-06-01 00:00:00

abstract：:Woodchuck sera were tested for antigens and antibodies with tests which detect human hepatitis virus antigens and antibodies. Data on 264 woodchuck sera are presented. ...

journal_title：Infection and immunity

authors： Millman I,Halbherr T,Simmons H

更新日期：1982-02-01 00:00:00

abstract：:Mice immunized with infections of 500, 5,000, or 20,000 oocysts of E. falciformis var. pragensis were reinfected with 20,000 and 100,000 oocysts at 20 and 38 days, respectively, after the initial infection. After the first challenge infection, none of the immunized mice showed clinical signs of coccidiosis; a few mice...

journal_title：Infection and immunity

authors： Mesfin GM,Bellamy JE

更新日期：1979-01-01 00:00:00

abstract：:Encapsulated Streptococcus pneumoniae of serotypes 2, 9N, 14, 21, and 23F and an unencapsulated variant of type 2 pneumococci were efficiently phagocytosed by both aerobically and anaerobically incubated human leukocytes. In the presence of O2, the pneumococci rapidly lost their viability, whereas during anaerobiosis,...

journal_title：Infection and immunity

authors： Thore M,Löfgren S,Tärnvik A,Monsen T,Selstam E,Burman LG

更新日期：1985-01-01 00:00:00

abstract：:Zoonotic infections caused by Salmonella enterica serovar Typhimurium pose a constant threat to consumer health, with the pig being a particularly major source of multidrug-resistant isolates. Vaccination, as a promising approach to reduce colonization and shedding, has been scarcely used, as it interferes with curren...

journal_title：Infection and immunity

authors： Selke M,Meens J,Springer S,Frank R,Gerlach GF

更新日期：2007-05-01 00:00:00

abstract：:Escherichia coli F-18 is a human fecal isolate that makes type 1 fimbriae, encoded by the fim gene cluster, and is an excellent colonizer of the streptomycin-treated mouse intestine. E. coli F-18 fimA::tet, lacking type 1 fimbriae, was constructed by bacteriophage P1 transduction of the fim region of the E. coli K-12 ...

journal_title：Infection and immunity

authors： Sweeney NJ,Klemm P,McCormick BA,Moller-Nielsen E,Utley M,Schembri MA,Laux DC,Cohen PS

更新日期：1996-09-01 00:00:00

abstract：:Saccharomyces boulardii, a nonpathogenic yeast, is effective in treating some patients with Clostridium difficile diarrhea and colitis. We have previously reported that S. boulardii inhibits rat ileal secretion in response to C. difficile toxin A possibly by releasing a protease that digests the intestinal receptor fo...

journal_title：Infection and immunity

authors： Castagliuolo I,LaMont JT,Nikulasson ST,Pothoulakis C

更新日期：1996-12-01 00:00:00

abstract：:Oligosaccharides (OSs) related to the pneumococcal type 14 capsular polysaccharide (Pn14PS) were studied for their ability to inhibit the binding between anti-PS14 antisera and native PS14. A synthetic tetrasaccharide corresponding to the repeating unit of the Pn14PS, a hexasaccharide mimic, and an octasaccharide frag...

journal_title：Infection and immunity

authors： Mawas F,Niggemann J,Jones C,Corbel MJ,Kamerling JP,Vliegenthart JF

更新日期：2002-09-01 00:00:00

abstract：:Polyprotein allergens are a family of structurally homologous molecules from parasitic nematodes which induce specific immunoglobulin E in infected individuals. We show here that both H-2 and non-H-2 factors determine the ability of mice to generate T- and B-cell responses to the filarial polyprotein allergen (Brugia ...

journal_title：Infection and immunity

authors： Allen JE,Lawrence RA,Maizels RM

更新日期：1995-08-01 00:00:00

abstract：:The enterotoxin of Shigella dysenteriae I produces fluid and electrolyte secretion in the rabbit ileum. These present studies were designed to evaluate nonelectrolyte transport in rabbit ileal mucosa exposed to Shigella enterotoxin. Both 10 mM galactose and 5 mM L-alanine absorptions were significantly impaired in ent...

journal_title：Infection and immunity

authors： Binder HJ,Whiting DS

更新日期：1977-05-01 00:00:00

abstract：:Internalization of Staphylococcus aureus in bovine endothelial cells (BEC) is increased by tumor necrosis factor alpha stimulation and NF-κB activation. Because the phosphoinositide-3-kinase (PI3K)-Akt signaling pathway also modulates NF-κB activity, we considered whether the internalization of S. aureus by BEC is ass...

journal_title：Infection and immunity

authors： Oviedo-Boyso J,Cortés-Vieyra R,Huante-Mendoza A,Yu HB,Valdez-Alarcón JJ,Bravo-Patiño A,Cajero-Juárez M,Finlay BB,Baizabal-Aguirre VM

更新日期：2011-11-01 00:00:00

abstract：:Routine culture of endothelial cells currently includes the use of heparin, which significantly reduces cell doubling time and increases cell population size. Heparin protects cultured arterial endothelial cells from damage by toxic oxygen metabolites produced by the action of xanthine and xanthine oxidase. Because of...

journal_title：Infection and immunity

authors： Silverman DJ,Santucci LA,Sekeyova Z

更新日期：1991-12-01 00:00:00

abstract：:The flavivirus dengue and the arenavirus Junin are both associated with a hemorrhagic shock syndrome in man. We have demonstrated the replication of these viruses in vitro in both rabbit and human endothelial cells by viral titers and immunofluorescent antibody studies. Rabbit endothelium established in continuous cul...

journal_title：Infection and immunity

authors： Andrews BS,Theofilopoulos AN,Peters CJ,Loskutoff DJ,Brandt WE,Dixon FJ

更新日期：1978-06-01 00:00:00

abstract：:Normal bacteria can translocate (migrate) across an intact intestinal mucosa, but the anatomical site of bacterial translocation has not been defined. Gastrointestinal (GI) cross-sections were obtained from mice monoassociated with high cecal concentrations of Escherichia coli, Proteus mirabilis, or Enterococcus faeca...

journal_title：Infection and immunity

authors： Wells CL,Erlandsen SL

更新日期：1991-12-01 00:00:00

abstract：:Acquisition of immunity to Plasmodium falciparum sexual stages is a key determinant for reducing human-mosquito transmission by preventing the fertilization and the development of the parasite in the mosquito midgut. Naturally acquired immunity against sexual stages may therefore form the basis for the development of ...

journal_title：Infection and immunity

authors： Ouédraogo AL,Roeffen W,Luty AJ,de Vlas SJ,Nebie I,Ilboudo-Sanogo E,Cuzin-Ouattara N,Teleen K,Tiono AB,Sirima SB,Verhave JP,Bousema T,Sauerwein R

更新日期：2011-12-01 00:00:00

abstract：:Salmonella pathogenicity island 12 (SPI-12) of Salmonella enterica serovar Typhimurium is a 15-kb region that encompasses genes STM2230 to STM2245 and encodes a remnant phage known to contribute to bacterial virulence. In mouse infection experiments and replication assays in macrophages, we demonstrated a role for fou...

journal_title：Infection and immunity

authors： Tomljenovic-Berube AM,Henriksbo B,Porwollik S,Cooper CA,Tuinema BR,McClelland M,Coombes BK

更新日期：2013-07-01 00:00:00

abstract：:The antigenic relationship of six different strains of Paracoccidioides brasiliensis was investigated by the agar-gel immunodiffusion test. Soluble antigens prepared from the two morphological phases of the fungus were diffused against human sera obtained from eight patients with paracoccidioidomycosis (South American...

journal_title：Infection and immunity

authors： Restrepo-Moreno A

更新日期：1970-09-01 00:00:00

abstract：:Dried and wet mouse fibroblast monolayers with labeled collagenous substrate were used to study the effects of lipoteichoic acid (LTA) on cellular prolyl hydroxylase activity. LTA is a scavenger of cations, and Fe2+ is essential for prolyl hydroxylase activity. Surprisingly, addition of LTA to dried monolayers resulte...

journal_title：Infection and immunity

authors： Leon O,Panos C

更新日期：1985-12-01 00:00:00

abstract：:The response of the intracellular pathogen Rhodococcus equi to H(2)O(2) treatment, a situation potentially encountered after the oxidative burst of alveolar macrophages, was analyzed. Compared to other bacteria, including Deinococcus radiodurans, R. equi showed exceptionally high resistance to this stress. A proteomic...

journal_title：Infection and immunity

authors： Benoit S,Benachour A,Taouji S,Auffray Y,Hartke A

更新日期：2002-07-01 00:00:00

abstract：:The involvement of tumor necrosis factor (TNF) in resistance to Toxoplasma gondii infection was examined by means of experiments in which mice were treated with anti-TNF antibodies prior to infection with ME49, a low-virulence Toxoplasma strain. In (BALB/cBy x C57BL/6J)F1 (CB6F1) mice, which are highly resistant to in...

journal_title：Infection and immunity

authors： Johnson LL

更新日期：1992-05-01 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