Immune recognition of Streptococcus pyogenes by dendritic cells.

abstract：:We performed ex vivo experiments with Plasmodium falciparum-infected human placentas from primi- and multigravida women from Cameroon. All women, independent of their gravida status, had anti-chondroitin sulfate A (CSA) adhesion antibodies which cross-reacted with heterologous strains, such as FCR3 and Palo-Alto(FUP)1...

journal_title：Infection and immunity

authors： Gysin J,Pouvelle B,Fievet N,Scherf A,Lépolard C

更新日期：1999-12-01 00:00:00

abstract：:Specific stimulation of T cells by phytohemagglutinin and Lens culinaris lectin was inhibited by a soluble factor(s) secreted by normal adherent cells stimulated with culture filtrate protein extract (CFPE) derived from bacterial cultures of Mycobacterium tuberculosis H37Ra (avirulent) and H37Rv (virulent). The induct...

journal_title：Infection and immunity

authors： Parra C,Montaño LF,Huesca M,Rayón I,Willms K,Goodsaid F

更新日期：1986-04-01 00:00:00

abstract：:Salmonella is a widespread zoonotic enteropathogen that causes gastroenteritis and fatal typhoidal disease in mammals. During systemic infection of mice, Salmonella enterica serovar Typhimurium resides and replicates in macrophages within the "Salmonella-containing vacuole" (SCV). It is surprising that the substrates ...

journal_title：Infection and immunity

authors： Bowden SD,Rowley G,Hinton JC,Thompson A

更新日期：2009-07-01 00:00:00

abstract：:A 75-kilodalton major protein (75K protein) was purified to homogeneity from the cell lysate fraction and the envelope of Bacteroides gingivalis 381. The 75K protein was originally present in the outer membrane or the outermost part of this organism as a large, stable complex with an apparent molecular weight of about...

journal_title：Infection and immunity

authors： Yoshimura F,Watanabe K,Takasawa T,Kawanami M,Kato H

更新日期：1989-11-01 00:00:00

abstract：:Toxoplasma gondii induces the expression of proinflammatory cytokines, reorganizes organelles, scavenges nutrients, and inhibits apoptosis in infected host cells. We used a cDNA microarray of 420 annotated porcine expressed sequence tags to analyze the molecular basis of these changes at eight time points over a 72-ho...

journal_title：Infection and immunity

authors： Okomo-Adhiambo M,Beattie C,Rink A

更新日期：2006-07-01 00:00:00

abstract：:The in vitro effects of pneumolysin, a sulfhydryl-activated toxin produced by Streptococcus pneumoniae, on various functions of human polymorphonuclear leukocytes (PMNLs) was investigated. Treatment of PMNLs with highly purified toxin significantly inhibited respiratory burst (in response to stimulation), ability to k...

journal_title：Infection and immunity

authors： Paton JC,Ferrante A

更新日期：1983-09-01 00:00:00

abstract：:Campylobacter fetus surface layer proteins (SLPs), encoded by sapA homologues, are important in virulence. In wild-type C. fetus strain 23D, all eight sapA homologues are located in the 54-kb sap island, and SLP expression reflects the position of a unique sapA promoter in relation to the sapA homologues. The extensiv...

journal_title：Infection and immunity

authors： Tu ZC,Hui J,Blaser MJ

更新日期：2004-03-01 00:00:00

abstract：:Nontypeable Haemophilus influenzae (NTHi) is a commensal microorganism of the human nasopharynx, and yet is also an opportunistic pathogen of the upper and lower respiratory tracts. Host microenvironments influence gene expression patterns, likely critical for NTHi persistence. The host sequesters iron as a mechanism ...

journal_title：Infection and immunity

authors： Harrison A,Santana EA,Szelestey BR,Newsom DE,White P,Mason KM

更新日期：2013-04-01 00:00:00

abstract：:Nonimmune binding of immunoglobulin to whole bacteria was quantitated for North American isolates of Haemophilus somnus recovered from cattle with pneumonia, reproductive failure (abortion), or thromboembolic meningoencephalitis or from the vagina or prepuce of carrier cattle. Quantitative binding activity covered a w...

journal_title：Infection and immunity

authors： Widders PR,Dorrance LA,Yarnall M,Corbeil LB

更新日期：1989-02-01 00:00:00

abstract：:Spleen cells from BALB/c mice infected with 2 X 10(7) L. major promastigotes and developing progressive disease produced significantly lower levels of interleukin-2 (IL-2) in response to concanavalin A stimulation than did spleen cells from uninfected mice. In contrast, spleen cells from sublethally irradiated and inf...

journal_title：Infection and immunity

authors： Cillari E,Liew FY,Lelchuk R

更新日期：1986-11-01 00:00:00

abstract：:Human gingival fibroblasts were exposed in culture to cell extracts of different black-pigmented Bacteroides species, and their growth was monitored by determining thymidine uptake and counting cells. Of the Bacteroides species tested (B. gingivalis, B. asaccharolyticus, and B. intermedius), B. gingivalis gave the ext...

journal_title：Infection and immunity

authors： Larjava H,Uitto VJ,Eerola E,Haapasalo M

更新日期：1987-01-01 00:00:00

abstract：:Previous passive antibody transfer experiments have indicated that immunity to a 46-kilodalton membrane glycoprotein (M-2) of Leishmania amazonensis may protect against infection with this parasite. In the studies described in this paper, we investigated the ability of the purified M-2 molecule to elicit a protective ...

journal_title：Infection and immunity

authors： Champsi J,McMahon-Pratt D

更新日期：1988-12-01 00:00:00

abstract：:A method was developed to test for the ability of Escherichia coli to adhere to isolated intestinal epithelial cells. Of the E. coli tested, those having either K88ac or K88ab antigens adhered to the cells, and those which did not have these antigens did not. Since some enteropathogenic E. coli did not have the abilit...

journal_title：Infection and immunity

authors： Wilson MR,Hohmann AW

更新日期：1974-10-01 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：:The outer membrane of pathogenic Leptospira species grown in culture media contains lipopolysaccharide (LPS), a porin (OmpL1), and several lipoproteins, including LipL36 and LipL41. The purpose of this study was to characterize the expression and distribution of these outer membrane antigens during renal infection. Ha...

journal_title：Infection and immunity

authors： Barnett JK,Barnett D,Bolin CA,Summers TA,Wagar EA,Cheville NF,Hartskeerl RA,Haake DA

更新日期：1999-02-01 00:00:00

abstract：:Numerous studies have reported that asialo-GM(1), gangliotetraosylceramide, or moieties serve as epithelial cell receptors for Pseudomonas aeruginosa. Usually this interaction is confirmed with antibodies to asialo-GM(1). However, few, if any, of these reports have evaluated the binding of fresh clinical isolates of P...

journal_title：Infection and immunity

authors： Schroeder TH,Zaidi T,Pier GB

更新日期：2001-02-01 00:00:00

abstract：:The recently introduced choleragen-induced rat foot edema model has been employed as a bioassay for evaluating the immunogenicity of three purified preparations containing cholera exo-enterotoxin antigen, choleragen, choleragenoid, and Formalin-treated choleragen (formagen). The results indicated that choleragen evoke...

journal_title：Infection and immunity

authors： Finkelstein RA,Hollingsworth RC

更新日期：1970-05-01 00:00:00

abstract：:Brucella spp. are gram-negative intracellular pathogens that survive and multiply within phagocytic cells of their hosts. Smooth organisms present O polysaccharides (OPS) on their surface. These OPS help the bacteria avoid the bactericidal action of serum. The wboA gene, coding for the enzyme glycosyltransferase, is e...

journal_title：Infection and immunity

authors： Fernandez-Prada CM,Nikolich M,Vemulapalli R,Sriranganathan N,Boyle SM,Schurig GG,Hadfield TL,Hoover DL

更新日期：2001-07-01 00:00:00

abstract：:When inoculated orally, Escherichia coli strain 1056 caused acute enteritis in 7 of 22 weanling hamsters. E. coli strain 1056 was isolated from the ileum of a hamster with proliferative ileitis. It was lactose negative, nonmotile, and anaerogenic. By electron microscopy and indirect fluorescent-antibody techniques, E....

journal_title：Infection and immunity

authors： Frisk CS,Wagner JE,Owens DR

更新日期：1981-03-01 00:00:00

abstract：:We examined the association of Herpesvirus saimiri with lymphocyte subsets and the functional integrity and distribution of these populations in owl monkeys with chronic, disease-free infections, in uninoculated, control animals, and in one monkey with H. saimiri-induced lymphoma. The lymphocyte subpopulations examine...

journal_title：Infection and immunity

authors： Neubauer RH,Dunn FE,Rabin H

更新日期：1981-05-01 00:00:00

abstract：:An improved enterocyte adhesion assay has been used to examine a collection of 44 strains of enterotoxigenic Escherichia coli (ETEC) for their ability to adhere to the brush border of isolated human duodenal enterocytes. Fourteen strains showed good adhesion; in each case the ability to adhere correlated with the prod...

journal_title：Infection and immunity

authors： Knutton S,Lloyd DR,Candy DC,McNeish AS

更新日期：1985-06-01 00:00:00

abstract：:Phagocytosis of unopsonized Salmonella typhimurium 395, MR-10, opsonized Salmonella typhimurium 395 MS, and Staphylococcus epidermidis by rabbit polymorphonuclear leukocytes was inhibited by heparin at concentrations as low as 0.5 U/ml. Inhibition was dose dependent and nearly complete at 20 U/ml. Provided that hepari...

journal_title：Infection and immunity

authors： Victor M,Weiss J,Elsbach P

更新日期：1981-04-01 00:00:00

abstract：:Mutation of purR was previously shown to enhance the virulence of Staphylococcus aureus in a murine sepsis model, and this cannot be fully explained by increased expression of genes within the purine biosynthesis pathway. Rather, the increased production of specific S. aureus virulence factors, including alpha toxin a...

journal_title：Infection and immunity

authors： Alkam D,Jenjaroenpun P,Ramirez AM,Beenken KE,Spencer HJ,Smeltzer MS

更新日期：2021-01-19 00:00:00

abstract：:Rhodococcus equi is a facultative intracellular pathogen of macrophages, relying on the presence of a conjugative virulence plasmid harboring a 21-kb pathogenicity island (PAI) for growth in host macrophages. The PAI encodes a family of 6 virulence-associated proteins (Vaps) in addition to 20 other proteins. The contr...

journal_title：Infection and immunity

authors： Coulson GB,Miranda-CasoLuengo AA,Miranda-CasoLuengo R,Wang X,Oliver J,Willingham-Lane JM,Meijer WG,Hondalus MK

更新日期：2015-08-01 00:00:00

abstract：:The action of trehalose-6, 6'-dimycolate (cord factor) of Mycobacterium tuberculosis to induce site II-specific inhibition of mitochondrial oxidative phosphorylation and to stimulate adenosine triphosphatase activity was neutralized by its specific antibody. The activity was restored after dissociation of cord factor ...

journal_title：Infection and immunity

authors： Kato M

更新日期：1974-07-01 00:00:00

abstract：:Pathogenic members of the Yersinia genus require the translocator protein LcrV for proper function of the type III secretion apparatus, which is crucial for virulence. LcrV has also been reported to play an independent immunosuppressive role via the induction of interleukin-10 (IL-10) through stimulation of Toll-like ...

journal_title：Infection and immunity

authors： Pouliot K,Pan N,Wang S,Lu S,Lien E,Goguen JD

更新日期：2007-07-01 00:00:00

abstract：:Neonatal animals are generally very susceptible to infection with bacterial pathogens. However, we recently reported that neonatal mice are highly resistant to orogastric infection with Yersinia enterocolitica. Here, we show that proinflammatory responses greatly exceeding those in adults arise very rapidly in the mes...

journal_title：Infection and immunity

authors： Siefker DT,Echeverry A,Brambilla R,Fukata M,Schesser K,Adkins B

更新日期：2014-02-01 00:00:00

abstract：:The mechanism of activation of intestinal guanylate cyclase by Escherichia coli heat-stable enterotoxin (STa) has been studied by using isolated rat intestinal epithelial cells and purified brush border membrane (BBM) preparations. Inhibitors of prostaglandin biosynthesis, quinacrine and 5,8,11,14-eicosatetraynoic aci...

journal_title：Infection and immunity

authors： Dreyfus LA,Jaso-Friedmann L,Robertson DC

更新日期：1984-05-01 00:00:00

abstract：:We investigated the role of bacterial mannose-resistant fimbriation of S fimbriae (Fim), mannose-resistant hemagglutination (S-Mrh), and hemolysin (Hly) production by an Escherichia coli parent and genetically cloned strains as regards their effect on histamine release from rat mast cells and generation of the chemilu...

journal_title：Infection and immunity

authors： König B,König W,Scheffer J,Hacker J,Goebel W

更新日期：1986-12-01 00:00:00

abstract：:Group A streptococci isolated from skin adhere in greater numbers to human skin epithelial cells than to cells obtained from buccal mucosa whereas streptococci isolated from a throat tend to adhere in greater numbers to buccal epithelial cells than to skin epithelial cells in vitro. M protein-producing strains of grou...

journal_title：Infection and immunity

authors： Alkan M,Ofek I,Beachey EH

更新日期：1977-11-01 00:00:00