Resolution of secondary Chlamydia trachomatis genital tract infection in immune mice with depletion of both CD4+ and CD8+ T cells.

abstract：:Campylobacter jejuni is a microaerobic bacterium that produces an acute, self-limiting, watery or bloody diarrhea in humans. Little is known about how C. jejuni causes disease or even what specific capabilities it requires for survival in vivo. The enzyme, superoxide dismutase (SOD), which catalyzes the breakdown of s...

journal_title：Infection and immunity

authors： Pesci EC,Cottle DL,Pickett CL

更新日期：1994-07-01 00:00:00

abstract：:Using polystyrene microspheres coated with heparin or heparan sulfate, it was shown that coated microspheres specifically bound eukaryotic cells and were endocytosed by nonprofessional phagocytic cells. Coated microspheres displayed properties of binding to eukaryotic cells that were similar to those of chlamydiae, an...

journal_title：Infection and immunity

authors： Stephens RS,Fawaz FS,Kennedy KA,Koshiyama K,Nichols B,van Ooij C,Engel JN

更新日期：2000-03-01 00:00:00

abstract：:A recent study found that group A Streptococcus (GAS) expresses a cell surface protein with similarity to human collagen (S. Lukomski, K. Nakashima, I. Abdi, V. J. Cipriano, R. M. Ireland, S. R. Reid, G. G. Adams, and J. M. Musser, Infect. Immun. 68:6542-6553, 2000). This streptococcal collagen-like protein (Scl) cont...

journal_title：Infection and immunity

authors： Lukomski S,Nakashima K,Abdi I,Cipriano VJ,Shelvin BJ,Graviss EA,Musser JM

更新日期：2001-03-01 00:00:00

abstract：:The route of pathogen inoculation by needle has been shown to influence the outcome of infection. Employing needle inoculation of the obligately intracellular parasite Leishmania major, which is transmitted in nature following intradermal (i.d.) deposition of parasites by the bite of an infected sand fly, we identifie...

journal_title：Infection and immunity

authors： Ribeiro-Gomes FL,Roma EH,Carneiro MB,Doria NA,Sacks DL,Peters NC

更新日期：2014-07-01 00:00:00

abstract：:Three antigenic determinants were revealed in H3 hemagglutinin of influenza A viruses isolated from 1968 to 1975. One of them was common for all viruses, and two others specified differences between the viruses possessing H3 hemagglutinin. ...

journal_title：Infection and immunity

authors： Rovnova ZI,Kosyakov PN,Berezina ON,Isayeva EI,Zhdanov VM

更新日期：1979-06-01 00:00:00

abstract：:We have cloned and sequenced the d15 gene from two strains of Haemophilus influenzae type b (Hib) and two strains of nontypeable H. influenzae (NTHI). The nucleotide and deduced protein sequences of d15 are highly conserved, with only a small variable region identified near the carboxyl terminus of the protein. Analys...

journal_title：Infection and immunity

authors： Loosmore SM,Yang YP,Coleman DC,Shortreed JM,England DM,Klein MH

更新日期：1997-09-01 00:00:00

abstract：:The concept of translational research, which aims to facilitate the application of basic scientific discoveries in clinical and community settings, is currently in vogue. While there are powerful forces driving this trend, support for translational research must be accompanied by a robust investment in basic science, ...

journal_title：Infection and immunity

authors： Fang FC,Casadevall A

更新日期：2010-02-01 00:00:00

abstract：:Porphyromonas gingivalis, a gram-negative anaerobic bacterium associated with active lesions of chronic periodontitis, produces several proteinases which are presumably involved in host colonization, perturbation of the immune system, and tissue destruction. The aims of this study were to investigate the degradation o...

journal_title：Infection and immunity

authors： Goulet V,Britigan B,Nakayama K,Grenier D

更新日期：2004-08-01 00:00:00

abstract：:We report here the identification and characterization of two zinc uptake systems, ZurAM and ZinABC, in the intracellular pathogen Listeria monocytogenes. Transcription of both operons was zinc responsive and regulated by the zinc-sensing repressor Zur. Deletion of either zurAM or zinA had no detectable effect on grow...

journal_title：Infection and immunity

authors： Corbett D,Wang J,Schuler S,Lopez-Castejon G,Glenn S,Brough D,Andrew PW,Cavet JS,Roberts IS

更新日期：2012-01-01 00:00:00

abstract：:Brazilian purpuric fever (BPF)-associated Haemophilus influenzae biogroup aegyptius strain F3031 contains two identical copies of a five gene cluster (hifA to hifE) encoding pili similar to well-characterized Hif fimbriae of H. influenzae type b. HifE, the putative pilus tip adhesin of F3031, shares only 40% amino aci...

journal_title：Infection and immunity

authors： Read TD,Satola SW,Opdyke JA,Farley MM

更新日期：1998-04-01 00:00:00

abstract：:We used an in vitro opsonophagocytic killing assay to measure the functional activity of antibody directed at the mucoid exopolysaccharide (MEP) antigen expressed by Pseudomonas aeruginosa strains isolated from cystic fibrosis patients. Rabbit antibodies raised to purified MEP were able to mediate phagocytic killing i...

journal_title：Infection and immunity

authors： Ames P,DesJardins D,Pier GB

更新日期：1985-08-01 00:00:00

abstract：:Dendritic cells (DC) suffer a maturation defect following interaction with erythrocytes infected with malaria parasites and become unable to induce protective malaria liver-stage immunity. Here we show that, by contrast, maturation-arrested DC in vitro are capable of the successful induction of antigen-specific gamma ...

journal_title：Infection and immunity

authors： Pouniotis DS,Proudfoot O,Bogdanoska V,Apostolopoulos V,Fifis T,Plebanski M

更新日期：2004-09-01 00:00:00

abstract：:Mortality associated with acute lung injury (ALI) induced by lipopolysaccharide (LPS) remains high in humans, warranting improved treatment and prevention strategies. ALI is characterized by the expression of proinflammatory mediators and extensive neutrophil influx into the lung, followed by severe lung damage. Under...

journal_title：Infection and immunity

authors： Jeyaseelan S,Chu HW,Young SK,Worthen GS

更新日期：2004-12-01 00:00:00

abstract：:Based upon the lipopolysaccharide (LPS) structure and antigenicity of Shigella group B, a strategy for broad cross-protection against 14 Shigella flexneri serotypes was designed. This strategy involves the use of two S. flexneri serotypes (2a and 3a), which together bear the all of the major antigenic group factors of...

journal_title：Infection and immunity

authors： Noriega FR,Liao FM,Maneval DR,Ren S,Formal SB,Levine MM

更新日期：1999-02-01 00:00:00

abstract：:Coxiella burnetii, phase I and II, cells cultivated in the yolk sac of chicken embryos were separated from host cell components by two cycles of isopycnic Renografin gradient centrifugation. Initial steps in the purification of viable C. burnetii involved differential centrifugation and sedimentation through an aqueou...

journal_title：Infection and immunity

authors： Williams JC,Peacock MG,McCaul TF

更新日期：1981-05-01 00:00:00

abstract：:To test the importance of lipopolysaccharide (LPS) and adhesin as major antigens in vaccination against rabbit enteropathogenic Escherichia coli (EPEC)-like E. coli O103 infection, we used two nonpathogenic wild-type strains to immunize rabbits at weaning. One of these strains (C127) harbors the O103 LPS but does not ...

journal_title：Infection and immunity

authors： Milon A,Esslinger J,Camguilhem R

更新日期：1992-07-01 00:00:00

abstract：:A previously undescribed, immunoreactive, membranous spherule outer wall (SOW) fraction produced by Coccidioides immitis (strains 634 and 735) grown in culture was isolated. Both this fraction and intact spherules were reactive with sera from coccidioidomycosis patients, as demonstrated by immunofluorescence microscop...

journal_title：Infection and immunity

authors： Cole GT,Seshan KR,Franco M,Bukownik E,Sun SH,Hearn VM

更新日期：1988-10-01 00:00:00

abstract：:Human monocytic ehrlichiosis (HME) is caused by a tick-borne obligate intracellular pathogen of the order Rickettsiales. HME disease can range from mild to a fatal, toxic shock-like syndrome, yet the mechanisms regulating pathogenesis are not well understood. We define a central role for type I interferons (alpha inte...

journal_title：Infection and immunity

authors： Zhang Y,Thai V,McCabe A,Jones M,MacNamara KC

更新日期：2014-04-01 00:00:00

abstract：:Vaccination with native full-length merozoite surface protein 1 (MSP1) or with recombinant C-terminal peptides protects mice against lethal challenge with virulent malaria parasites. To determine whether other regions of MSP1 can also induce protection, Plasmodium yoelii MSP1 was divided into four separate regions. Ea...

journal_title：Infection and immunity

authors： Tian JH,Kumar S,Kaslow DC,Miller LH

更新日期：1997-08-01 00:00:00

abstract：:The mammalian host response to infection includes the production and secretion of antimicrobial peptides from phagocytes and epithelial cells. Protegrins, a group of broadly microbicidal peptides isolated originally from porcine neutrophil lysates, were found to be stored as inactive proforms in porcine neutrophil gra...

journal_title：Infection and immunity

authors： Shi J,Ganz T

更新日期：1998-08-01 00:00:00

abstract：:Cross-reactive humoral immune responses between antigens of different developmental stages of the worm Schistosoma mansoni have previously been demonstrated. In contrast, information on antigenic cross-reactivity at the T-cell level is still very sparse. The present study examined the cross-reactive T-cell responses t...

journal_title：Infection and immunity

authors： Lukacs NW,Boros DL

更新日期：1991-09-01 00:00:00

abstract：:Ehrlichia chaffeensis, a tick-borne rickettsial organism, causes the disease human monocytic ehrlichiosis. The pathogen also causes disease in several other vertebrates, including dogs and deer. In this study, we assessed two clonally purified E. chaffeensis mutants with insertions within the genes Ech_0379 and Ech_06...

journal_title：Infection and immunity

authors： Nair AD,Cheng C,Jaworski DC,Ganta S,Sanderson MW,Ganta RR

更新日期：2015-07-01 00:00:00

abstract：:Immunologically competent mice and mice with defined immunological deficiencies were infected with Plasmodium yoelii. Splenomegaly, enhanced phagocytosis, and anemia were most marked in infected mice having intact thymic tissue. Whereas the spleens of infected nude mice increased minimally in size, the relative blood ...

journal_title：Infection and immunity

authors： Roberts DW,Weidanz WP

更新日期：1978-06-01 00:00:00

abstract：:It was demonstrated that complement-coated sheep erythrocytes bind to Candida albicans cells grown in serum-free RPMI 1640 medium. Testing of purified complement components proved that iC3b and C3d were responsible for the reaction, whereas C3b and C3b-H reacted only slightly if at all. Binding occurred only to C. alb...

journal_title：Infection and immunity

authors： Heidenreich F,Dierich MP

更新日期：1985-11-01 00:00:00

abstract：:The hemolytic and sphingomyelinase C activities of supernatants of cultures of Leptospira interrogans serovar pomona tended to copurify when isoelectric fractionation was carried out. Both activities focused primarily at pH 8.1. Considered in conjunction with other circumstantial evidence, the results led to the concl...

journal_title：Infection and immunity

authors： Bernheimer AW,Bey RF

更新日期：1986-10-01 00:00:00

abstract：:Pili have been demonstrated to be the adhesins of Pseudomonas aeruginosa for mouse epidermal cells. The mechanisms of adhesion of P. aeruginosa to mouse epidermal cells was studied by using four mutants derived from a single strain: flagellated and piliated (F+P+), flagellated and nonpiliated (F+P-), nonflagellated an...

journal_title：Infection and immunity

authors： Sato H,Okinaga K

更新日期：1987-08-01 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：:Clostridium difficile is the leading cause of nosocomial bacterial diarrhea. Glutamine and its stable and highly soluble derivative alanyl-glutamine, have been beneficial in models of intestinal injury. In this study, we extend our work on the mechanisms of Clostridium difficile toxin A (TxA)-induced apoptosis in huma...

journal_title：Infection and immunity

authors： Carneiro BA,Fujii J,Brito GA,Alcantara C,Oriá RB,Lima AA,Obrig T,Guerrant RL

更新日期：2006-01-01 00:00:00

abstract：:Antisera against isolated cell surface preparations (PCSP-As) of Leishmania donovani promastigotes were used to detect extracellular antigens produced during the growth of these organisms in four different growth media. The PCSP-As precipitated two major antigenically identical but electrophoretically distinct compone...

journal_title：Infection and immunity

authors： Kaneshiro ES,Gottlieb M,Dwyer DM

更新日期：1982-08-01 00:00:00

abstract：:Mycobacterium tuberculosis has a unique family of PE-PGRS proteins with conserved N-terminal domains (PE) containing site-specific proline-glutamine residues and polymorphic GC-rich repetitive sequences (PGRS). Tuberculosis (TB) patients produce antibodies against some such proteins, but it is not clear whether these ...

journal_title：Infection and immunity

authors： Koh KW,Soh SE,Seah GT

更新日期：2009-08-01 00:00:00