Type I interferon signaling regulates activation of the absent in melanoma 2 inflammasome during Streptococcus pneumoniae infection.

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：:Streptolysin-O (SLO) is a thiol-activated, membrane-damaging protein toxin of Mr 69,000 that is produced by most strains of beta-hemolytic group A streptococci. Native, primarily water-soluble toxin molecules bind to cholesterol-containing target membranes to assemble into supramolecular curved rod structures (25 to 1...

journal_title：Infection and immunity

authors： Bhakdi S,Tranum-Jensen J,Sziegoleit A

更新日期：1985-01-01 00:00:00

abstract：:Immunoglobulin class-specific antibodies were measured by a solid-phase radioimmunoassay in serum, bronchoalveolar washings (BAW), lung cell lysates, and spleen cell lysates in germfree mice after intranasal (i.n.) and intraperitoneal (i.p.) primary and secondary 10(5), 10(4), and 10(3) mean tissue culture infective d...

journal_title：Infection and immunity

authors： Charlton D,Blandford G

更新日期：1977-09-01 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：:Legionella pneumophila is ingested by both human macrophages and amoebae, and it multiplies within similar endocytic compartments in both eukaryotic species. Inhibitors of eukaryotic protein synthesis, such as cycloheximide and emetine, had no effect on the uptake of L. pneumophila by macrophages but completely abolis...

journal_title：Infection and immunity

authors： abu Kwaik Y,Fields BS,Engleberg NC

更新日期：1994-05-01 00:00:00

abstract：:An apparent inhibition of induction of mouse hepatic tryptophan oxygenase by endotoxin has been reported previously, as evidenced by low catalytic activity. This could be due either to decreased tryptophan oxygenase levels or to inactivation of existing enzyme molecules. To resolve this question, the enzyme was quanti...

journal_title：Infection and immunity

authors： Rippe DF,Berry LJ

更新日期：1973-10-01 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：:Salmonella spp. and Shigella spp. are responsible for millions of cases of enteric disease each year worldwide. While these pathogens have evolved distinct strategies for interacting with the human intestinal epithelium, they both induce significant proinflammatory responses that result in massive transepithelial migr...

journal_title：Infection and immunity

authors： Mumy KL,Bien JD,Pazos MA,Gronert K,Hurley BP,McCormick BA

更新日期：2008-08-01 00:00:00

abstract：:The amount of crude Campylobacter jejuni enterotoxin present in culture products was quantitated by comparing the response of these preparations with that of pure Escherichia coli heat-labile toxin (LT) in the Chinese hamster ovary assay and in enzyme-linked immunosorbent assays that used GM ganglioside or antisera to...

journal_title：Infection and immunity

authors： Klipstein FA,Engert RF

更新日期：1984-08-01 00:00:00

abstract：:Strain superinfection occurs when a second pathogen strain infects a host already carrying a primary strain. Anaplasma marginale superinfection occurs when the second strain carries a variant repertoire different from that of the primary strain, and the epidemiologic consequences depend on the relative efficiencies of...

journal_title：Infection and immunity

authors： Galletti MF,Ueti MW,Knowles DP Jr,Brayton KA,Palmer GH

更新日期：2009-04-01 00:00:00

abstract：:Neisseria meningitidis is a human-specific pathogen and leading cause of meningitis and septicemia. Factor H binding protein (fHbp), a virulence factor which protects N. meningitidis from innate immunity by binding the human complement regulator factor H (fH) with high affinity, is also a key antigen in vaccines being...

journal_title：Infection and immunity

authors： van der Veen S,Johnson S,Jongerius I,Malik T,Genovese A,Santini L,Staunton D,Ufret-Vincenty RL,Pickering MC,Lea SM,Tang CM

更新日期：2014-03-01 00:00:00

abstract：:Mycoplasma genitalium is a sexually transmitted pathogen associated with several acute and chronic reproductive tract disease syndromes in men and women. To evaluate the suitability of a pig-tailed macaque model of M. genitalium infection, we inoculated a pilot animal with M. genitalium strain G37 in the uterine cervi...

journal_title：Infection and immunity

authors： Wood GE,Iverson-Cabral SL,Patton DL,Cummings PK,Cosgrove Sweeney YT,Totten PA

更新日期：2013-08-01 00:00:00

abstract：:Fusobacterium nucleatum is a common oral anaerobe involved in periodontitis that is known to translocate and cause intrauterine infections. In the oral environment, F. nucleatum adheres to a large diversity of species, facilitating their colonization and creating biological bridges that stabilize the multispecies dent...

journal_title：Infection and immunity

authors： Coppenhagen-Glazer S,Sol A,Abed J,Naor R,Zhang X,Han YW,Bachrach G

更新日期：2015-03-01 00:00:00

abstract：:Candida-associated denture stomatitis (DS) is a persistent and chronic oral infection of the denture-bearing palatal mucosa. DS stems from the ability of the fungal opportunistic pathogen Candida albicans to adhere to denture material and invade palatal tissue. Although DS is the most prevalent form of oral candidiasi...

journal_title：Infection and immunity

authors： Sultan AS,Rizk AM,Vila T,Ji Y,Masri R,Jabra-Rizk MA

更新日期：2019-11-18 00:00:00

abstract：:Studies of the effect of sex hormones on the susceptibility of mice to the disseminated gonococcal infection demonstrated significantly enhanced susceptibility of mice injected with estrogen (17 beta-estradiol). In mice treated with estradiol, bacteremia progressively developed within 12 h postinoculation and mice die...

journal_title：Infection and immunity

authors： Kita E,Takahashi S,Yasui K,Kashiba S

更新日期：1985-07-01 00:00:00

abstract：:The acute phase of Chagas' disease is accompanied by immunosuppression. To explore the underlying mechanism(s), we used an in vitro culture system in which the capacities of activated human peripheral blood mononuclear cells to express interleukin-2 receptors (IL-2R) and proliferate are markedly inhibited in the prese...

journal_title：Infection and immunity

authors： Beltz LA,Kierszenbaum F,Sztein MB

更新日期：1989-08-01 00:00:00

abstract：:Mycoplasma hyorhinis organisms were fractionated into lipid, carbohydrate, and protein fractions by chemical and physiochemical procedures. When all fractions were tested for complement fixation and inhibition of growth inhibition activity, only the protein fractions possessed activity. Thus, it appears that the major...

journal_title：Infection and immunity

authors： Barden JA,Prescott B

更新日期：1973-06-01 00:00:00

abstract：:The effect of human-specific antibody on surface membrane antigens of trypomastigotes of Trypanosoma cruzi was studied in vitro by using immunofluorescence methods. Immune sera induced aggregation of surface antigens in trypomastigotes to form polar cell caps. ...

journal_title：Infection and immunity

authors： Schmuñis GA,Szarfman A,Langembach T,de Souza W

更新日期：1978-05-01 00:00:00

abstract：:Gamma interferon (IFN-gamma), a pleiotropic cytokine, is now known to be produced by macrophages as well as by NK cells, gammadelta cells, and activated T cells. The autocrine biological functions of IFN-gamma on the macrophage include the upregulation of major histocompatibility complex MHC class II and the activatio...

journal_title：Infection and immunity

authors： Salins S,Newton C,Widen R,Klein TW,Friedman H

更新日期：2001-06-01 00:00:00

abstract：:Ninety-six Aeromonas hydrophila isolates were tested for cytotoxin and hemolysin production. Sixty-six (69%) of the isolates were both cytotoxic and hemolytic, whereas the rest produced neither cytotoxin nor hemolysin. No evidence of a separate cytotonic activity could be found in any of the isolates. Cytotoxin activi...

journal_title：Infection and immunity

authors： Cumberbatch N,Gurwith MJ,Langston C,Sack RB,Brunton JL

更新日期：1979-03-01 00:00:00

abstract：:Ultrastructural changes in cells of the mouse footpad are described which occurred during the log phase of multiplication, the plateau, and the stationary phase of growth of Mycobacterium leprae.BALB/c mice were inoculated in the right hind footpad with 5 x 10(3) organisms and sacrificed in pairs at 86 to 173 days aft...

journal_title：Infection and immunity

authors： Evans MJ,Levy L

更新日期：1972-02-01 00:00:00

abstract：:The coagulase-negative species Staphylococcus lugdunensis is an emerging cause of serious and potentially life-threatening infections, such as infective endocarditis. The pathogenesis of these infections is characterized by the ability of S. lugdunensis to form biofilms on either biotic or abiotic surfaces. To elucida...

journal_title：Infection and immunity

authors： Rajendran NB,Eikmeier J,Becker K,Hussain M,Peters G,Heilmann C

更新日期：2015-12-01 00:00:00

abstract：:Salmonellae with differences only in the O-antigenic polysaccharide of their lipopolysaccharide were previously shown to differentially activate complement via the alternative pathway, causing them to be ingested at different rates by the mouse macrophage-like cell line J774. We now show that this mechanism could expl...

journal_title：Infection and immunity

authors： Liang-Takasaki CJ,Saxén H,Mäkelä PH,Leive L

更新日期：1983-08-01 00:00:00

abstract：:The rfb locus, determining biosynthesis of O8-specific lipopolysaccharide side chains, was transferred to a rough mutant of Escherichia coli; recombinants producing a complete lipopolysaccharide were more resistant to the complement-mediated bactericidal action of human serum than the rough recipient. Inheritance of t...

journal_title：Infection and immunity

authors： Taylor PW,Robinson MK

更新日期：1980-07-01 00:00:00

abstract：:Burkholderia pseudomallei is a facultative intracellular gram-negative bacterium that can survive and multiply inside macrophages. One of the mechanisms by which B. pseudomallei escapes macrophage killing is by interfering with the expression of inducible nitric oxide synthase (iNOS). However, the bacterial components...

journal_title：Infection and immunity

authors： Arjcharoen S,Wikraiphat C,Pudla M,Limposuwan K,Woods DE,Sirisinha S,Utaisincharoen P

更新日期：2007-09-01 00:00:00

abstract：:Brucella abortus endotoxin preparations, containing approximately 5 to 6% protein, induce strong immune and adjuvant immunoglobulin G (IgG) responses as compared with Escherichia coli endotoxin preparations, with equivalent amounts of protein, which induce responses in which IgM antibody predominates. Using an enzyme-...

journal_title：Infection and immunity

authors： Kurtz RS,Berman DT

更新日期：1986-12-01 00:00:00

abstract：:To characterize the roles of Porphyromonas gingivalis and its components in disease processes, we investigated the cytokine profiles induced by live P. gingivalis, its lipopolysaccharide (LPS), and its major fimbrial protein, fimbrillin (FimA). A cytokine antibody array revealed that human monocyte-derived macrophages...

journal_title：Infection and immunity

authors： Zhou Q,Amar S

更新日期：2006-02-01 00:00:00

abstract：:The level of type-specific antigen (that covalently associated with the cell wall peptidoglycan and that released extracellularly) synthesized by virulent and avirulent strains of type III group B streptococci was quantitated and compared. Additionally, the effect of the physiological age of the cells and the influenc...

journal_title：Infection and immunity

authors： Yeung MK,Mattingly SJ

更新日期：1984-05-01 00:00:00

abstract：:Apical membrane antigen 1 (AMA1) is expressed on the surfaces of Plasmodium falciparum merozoites and is thought to play an important role in the invasion of erythrocytes by malaria parasites. To select for peptides that mimic conformational B-cell epitopes on AMA1, we screened a phage display library of >10(8) indivi...

journal_title：Infection and immunity

authors： Casey JL,Coley AM,Anders RF,Murphy VJ,Humberstone KS,Thomas AW,Foley M

更新日期：2004-02-01 00:00:00

abstract：:Incubation of INT407 cells with various clinical isolates of Campylobacter jejuni resulted in secretion of interleukin-8 (IL-8) at levels ranging from 96 to 554 pg/ml at 24 h. The strains which produced the highest levels of IL-8 secretion were 81-176 and BT44. Induction of IL-8 secretion required live cells of 81-176...

journal_title：Infection and immunity

authors： Hickey TE,Baqar S,Bourgeois AL,Ewing CP,Guerry P

更新日期：1999-01-01 00:00:00