Role of cytokines and major histocompatibility complex restriction in mouse resistance to infection with a natural recombinant strain (type I-III) of Toxoplasma gondii.

abstract：:Oligosaccharide (OS)-protein conjugates are promising candidate vaccines against encapsulated bacteria, such as Haemophilus influenzae, Neisseria meningitidis, and Streptococcus pneumoniae. Although the effects of several variables such as OS chain length and protein carrier have been studied, little is known about th...

journal_title：Infection and immunity

authors： Lefeber DJ,Benaissa-Trouw B,Vliegenthart JF,Kamerling JP,Jansen WT,Kraaijeveld K,Snippe H

更新日期：2003-12-01 00:00:00

abstract：:Tritrichomonas foetus is a serious veterinary pathogen, causing bovine trichomoniasis, a sexually transmitted disease leading to infertility and abortion. T. foetus infects the mucosal surfaces of the reproductive tract. Infection with T. foetus leads to apoptotic cell death of bovine vaginal epithelial cells (BVECs) ...

journal_title：Infection and immunity

authors： Singh BN,Lucas JJ,Hayes GR,Kumar I,Beach DH,Frajblat M,Gilbert RO,Sommer U,Costello CE

更新日期：2004-07-01 00:00:00

abstract：:Cell wall proteins with sialidase activity are involved in carbohydrate assimilation, adhesion to mucosal surfaces, and biofilm formation. Gardnerella spp. inhabit the human vaginal microbiome and encode up to three sialidase enzymes, two of which are suspected to be cell wall associated. Here we demonstrate that the ...

journal_title：Infection and immunity

authors： Kurukulasuriya SP,Patterson MH,Hill JE

更新日期：2020-12-23 00:00:00

abstract：:Pools of rat antiserum to Plasmodium berghei had different levels of protective activity as assessed by a passive transfer test. Preincubation of parasite inocula with an effective pool before injection did not significantly enhance protective activity. Removal of the antiserum from preincubated parasite inocula aboli...

journal_title：Infection and immunity

authors： Brown IN,Phillips RS

更新日期：1974-12-01 00:00:00

abstract：:Galactomannan (GM) extracted from mycelia of Aspergillus fumigatus with cold dilute alkali reacted with antiserum specific for an antigen that circulated in invasive aspergillosis in rabbits and humans. The GM was purified by its affinity for concanavalin A and was separated from a nonantigenic glucan by gel permeatio...

journal_title：Infection and immunity

authors： Reiss E,Lehmann PF

更新日期：1979-07-01 00:00:00

abstract：:Expression of virulence determinants by Bordetella pertussis, the primary etiological agent of whooping cough, is regulated by the BvgAS two-component regulatory system. The role of a second two-component regulatory system, encoded by risAS, in this process is not defined. Here, we show that mutation of B. pertussis r...

journal_title：Infection and immunity

authors： Stenson TH,Allen AG,Al-Meer JA,Maskell D,Peppler MS

更新日期：2005-09-01 00:00:00

abstract：:Mycoplasma salivarium cells propagated in PPLO broth (Difco Laboratories, Detroit, Mich.) supplemented with rabbit serum (10% [vol/vol]) and harvested by centrifugation were shown to contain rabbit immunoglobulin G (IgG) (approximately 4 to 10% of total cell proteins) and to produce IgM autoantibodies to IgG when inoc...

journal_title：Infection and immunity

authors： Watanabe T,Shibata K,Hasegawa K

更新日期：1987-01-01 00:00:00

abstract：:In an attempt to clarify the mechanism(s) of increased susceptibility to oral infection in diabetics, we examined the levels of salivary antibacterial factors, including lysozyme, lactoperoxidase, and lactoferrin, in diabetic hamsters whose condition was induced with streptozotocin. Saliva was collected from these ham...

journal_title：Infection and immunity

authors： Muratsu K,Morioka T

更新日期：1985-05-01 00:00:00

abstract：:Antibodies against the Plasmodium falciparum P0 ribosomal phosphoprotein (PfP0) have been detected exclusively but extensively in malaria-immune persons. Polyclonal rabbit and mice sera were raised against two recombinant polypeptides of P. falciparum P0 protein, PfP0N and PfP0C, covering amino acids 17 to 61 and the ...

journal_title：Infection and immunity

authors： Chatterjee S,Singh S,Sohoni R,Singh NJ,Vaidya A,Long C,Sharma S

更新日期：2000-07-01 00:00:00

abstract：:The Lyme disease spirochete Borrelia burgdorferi reduces the expression of outer surface protein C (OspC) in response to the development of an anti-OspC humoral response, leading to the hypothesis that the ability to repress OspC expression is critical for the pathogen to proceed to chronic infection. B. burgdorferi w...

journal_title：Infection and immunity

authors： Xu Q,Seemanapalli SV,McShan K,Liang FT

更新日期：2006-09-01 00:00:00

abstract：:Serotype b-specific polysaccharide antigen (SPA) was extracted from whole cells of Actinobacillus actinomycetemcomitans Y4 by autoclaving and purified by chromatography on DEAE-Sephadex A-25 and Sephacryl S-300. SPA induced the release of monocyte and leukocyte chemotactic factors by human monocytes. Polymyxin B had a...

journal_title：Infection and immunity

authors： Yamaguchi N,Yamashita Y,Ikeda D,Koga T

更新日期：1996-07-01 00:00:00

abstract：:Shiga toxin-producing Escherchia coli (STEC) comprises a group of attaching and effacing (A/E) enteric pathogens of animals and humans. Natural and experimental infection of calves with STEC may result in acute enteritis or subclinical infection, depending on serotype- and host-specific factors. To quantify intestinal...

journal_title：Infection and immunity

authors： Stevens MP,Marchès O,Campbell J,Huter V,Frankel G,Phillips AD,Oswald E,Wallis TS

更新日期：2002-02-01 00:00:00

abstract：:Organisms of the Mycobacterium avium complex are associated with disseminated infection in patients with AIDS. The mechanisms that account for the survival of the intracellular bacteria are unknown. We document here that infection of C57BL/6 black mice with M. avium 101 triggered interleukin-10 (IL-10) production. The...

journal_title：Infection and immunity

authors： Bermudez LE,Champsi J

更新日期：1993-07-01 00:00:00

abstract：:Schistosoma mansoni eggs produced by adult worms in the mesenteric vasculature become trapped in the liver, where they induce granulomatous lesions and strong immune responses. Infected individuals suffer from intestinal schistosomiasis (INT) in 90% of cases, whereas the remaining 10% present with severe hepatosplenic...

journal_title：Infection and immunity

authors： Manivannan B,Rawson P,Jordan TW,Secor WE,La Flamme AC

更新日期：2010-02-01 00:00:00

abstract：:A purified A-antigen preparation of Blastomyces dermatitidis was determined to be composed of five major glycoprotein bands, visible with Coomassie blue and periodic acid-Schiff staining of polyacrylamide gels. At least 20 additional protein bands were detected by using a silver stain, which was 100 times more sensiti...

journal_title：Infection and immunity

authors： Young KD,Larsh HW

更新日期：1981-07-01 00:00:00

abstract：:Minicells are small, anucleate cells resulting from aberrant cell divisions at the polar ends of bacilli. We have isolated minicell-producing mutant strains of Shigella flexneri 2a (MC-I) and Shigella dysenteriae 1 (MC-V) after mutagenesis with N-methyl-N'-nitro-N-nitrosoguanidine. Microscopically, broth cultures of M...

journal_title：Infection and immunity

authors： Gemski P,Griffin DE

更新日期：1980-10-01 00:00:00

abstract：:Factors which control the levels of catalase within yeast cells of Histoplasma capsulatum were studied. Only a small fraction of the total catalase activity could be detected in whole cells. The bulk of the activity was revealed in cell-free extracts or in cells permeabilized with acetone. The formation of the enzyme ...

journal_title：Infection and immunity

authors： Howard DH

更新日期：1983-03-01 00:00:00

abstract：:Infectious agents are often considered potential triggers of chronic inflammatory disease, including autoimmunity; however, direct evidence is usually lacking. Here we show that following control of acute infection of mice with the myotropic Colombiana strain of Trypanosoma cruzi, parasites persisted in tissue at low ...

journal_title：Infection and immunity

authors： Roffê E,Marino APMP,Weaver J,Wan W,de Araújo FF,Hoffman V,Santiago HC,Murphy PM

更新日期：2016-03-24 00:00:00

abstract：:Staphylococcal enterotoxins A through D (SEA through SED) and toxic shock syndrome toxin-1 display superantigen properties, i.e., they stimulate a great fraction of T cells expressing certain T-cell receptor V beta sequences. Using a newly established rat model of septic Staphylococcus aureus arthritis, we have recent...

journal_title：Infection and immunity

authors： Bremell T,Tarkowski A

更新日期：1995-10-01 00:00:00

abstract：:The enteric pathogen Shigella is one of the leading causes of moderate-to-severe diarrhea and death in young children in developing countries. Transformed cell lines and animal models have been widely used to study Shigella pathogenesis. In addition to altered physiology, transformed cell lines are composed of a singl...

journal_title：Infection and immunity

authors： Ranganathan S,Doucet M,Grassel CL,Delaine-Elias B,Zachos NC,Barry EM

更新日期：2019-03-25 00:00:00

abstract：:Brucella abortus injected into CBA mice replicated primarily in the spleen and liver, reaching a peak bacterial count in both organs about 7 days postinfection. The organism was eliminated from the liver but declined to a chronic phase in the spleen. The infection caused hepatosplenomegaly. An influx of macrophages in...

journal_title：Infection and immunity

authors： Doyle AG,Halliday WJ,Barnett CJ,Dunn TL,Hume DA

更新日期：1992-04-01 00:00:00

abstract：:We previously identified a cell wall-associated protein from Fusobacterium nucleatum, a Gram-negative bacterium of the oral cavity, that induces human beta defensin 2 (hBD-2) in primary human oral epithelial cells (HOECs) and designated it FAD-I (Fusobacterium-associated defensin inducer). Here, we report differential...

journal_title：Infection and immunity

authors： Bhattacharyya S,Ghosh SK,Shokeen B,Eapan B,Lux R,Kiselar J,Nithianantham S,Young A,Pandiyan P,McCormick TS,Weinberg A

更新日期：2016-04-22 00:00:00

abstract：:Preliminary studies established methods for obtaining maximum yields of viable cells. Liquid shaken cultures of Histoplasma capsulatum provided a maximum of 4 x 10(8) to 5 x 10(8) cells/ml regardless of the inoculum size. Under optimum conditions, cells were viable (90 to 95%) for 168 to 240 hr. Generation times range...

journal_title：Infection and immunity

authors： Garcia JP,Howard DH

更新日期：1971-08-01 00:00:00

abstract：:Chagas' disease is a chronic infection caused by Trypanosoma cruzi and represents an important public health burden in Latin America. Frequently the disease evolves undetectable for decades, while in a significant fraction of the affected individuals it culminates in death by heart failure. Here, we describe a novel m...

journal_title：Infection and immunity

authors： Marinho CR,Bucci DZ,Dagli ML,Bastos KR,Grisotto MG,Sardinha LR,Baptista CR,Gonçalves CP,Lima MR,Alvarez JM

更新日期：2004-04-01 00:00:00

abstract：:Mice pretreated intraperitoneally with trehalose-6,6'-dimycolate (cord factor) were protected against an intraperitoneal challenge with Salmonella typhi strain Ty2 or Salmonella typhimurium strain SR 11. The nonspecific resistance to S. typhi and S. typhimurium was still detectable 7 and 14 days, respectively, after a...

journal_title：Infection and immunity

authors： Yarkoni E,Bekierkunst A

更新日期：1976-11-01 00:00:00

abstract：:The mechanisms by which Mycobacterium tuberculosis elicits disease are complex, involving a large repertoire of bacterial genes that are required for in vivo growth and survival. To identify such genes, we utilized a high-throughput microarray detection method to rapidly screen hundreds of unique, genotypically define...

journal_title：Infection and immunity

authors： Lamichhane G,Tyagi S,Bishai WR

更新日期：2005-04-01 00:00:00

abstract：:Ehrlichia chaffeensis, an obligatory intracellular bacterium of monocytes or macrophages, is the etiologic agent of human monocytic ehrlichiosis. Our previous study showed that gamma interferon (IFN-gamma) added prior to or at early stage of infection inhibited infection of human monocytes with E. chaffeensis; however...

journal_title：Infection and immunity

authors： Lee EH,Rikihisa Y

更新日期：1998-06-01 00:00:00

abstract：:The cellular origins of type I and type II interferons released into the circulation of mice with delayed hypersensitivity were investigated. We determined the effect of treatment with various immunosuppressive agents, including cyclophosphamide, cycloheximide, antithymocyte serum, and whole-body X-irradiation, on the...

journal_title：Infection and immunity

authors： Sonnenfeld G,Salvin SB,Youngner JS

更新日期：1977-11-01 00:00:00

abstract：:Previous studies showed that Pseudomonas aeruginosa exotoxin A (PA toxin) catalyzes nicotinamide adenine dinucleotide (NAD)-dependent inhibition of protein synthesis in a rabbit reticulocyte lysate and transfer of radioactivity from [14C]adenine-labeled NAD to a protein having the same molecular weight as elongation f...

journal_title：Infection and immunity

authors： Iglewski BH,Liu PV,Kabat D

更新日期：1977-01-01 00:00:00

abstract：:A secreted nuclease, SsnA, was identified in the virulent Streptococcus suis isolate SX332 and subsequently in each of the type strains of capsular serotypes 1 through 9. Screening of 258 porcine clinical isolates from surface (nasal mucosa or palatine tonsil) or internal (joint, brain or other internal organ) locatio...

journal_title：Infection and immunity

authors： Fontaine MC,Perez-Casal J,Willson PJ

更新日期：2004-02-01 00:00:00