Localized expression of mRNA for phagocyte-specific chemotactic cytokines in human periodontal infections.

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：:Enteropathogenic Escherichia coli (EPEC) interacts with intestinal epithelial cells, activating host signaling pathways leading to cytoskeletal rearrangements and ultimately diarrhea. In this study, we demonstrate that EPEC interacts with the macrophage-like cell line J774A.1 to inhibit phagocytosis by these cells. An...

journal_title：Infection and immunity

authors： Goosney DL,Celli J,Kenny B,Finlay BB

更新日期：1999-02-01 00:00:00

abstract：:Nonspecific interactions related to physicochemical properties of bacterial cell surfaces, such as hydrophobicity and electrostatic charge, are known to have important roles in bacterium-host cell encounters. Streptococcus pneumoniae (pneumococcus) expresses multiple, surface-exposed, choline-binding proteins (CBPs) w...

journal_title：Infection and immunity

authors： Swiatlo E,Champlin FR,Holman SC,Wilson WW,Watt JM

更新日期：2002-01-01 00:00:00

abstract：:The present study was performed to examine whether Porphyromonas gingivalis fimbriae induce specifically a protein kinase-mediated phosphorylated protein that is involved in the mechanism of signal transduction. The fimbriae induced a 68-kDa phosphorylated protein (pp68) in a dose-dependent manner in mouse peritoneal ...

journal_title：Infection and immunity

authors： Murakami Y,Hanazawa S,Watanabe A,Naganuma K,Iwasaka H,Kawakami K,Kitano S

更新日期：1994-12-01 00:00:00

abstract：:Lipooligosaccharide (LOS) is a major surface component of Moraxella catarrhalis and a possible virulence factor in the pathogenesis of human infections caused by this organism. The presence of LOS on the bacterium is an obstacle to the development of vaccines derived from whole cells or outer membrane components of th...

journal_title：Infection and immunity

authors： Peng D,Hong W,Choudhury BP,Carlson RW,Gu XX

更新日期：2005-11-01 00:00:00

abstract：:Herpes simplex virus (HSV) infection of mouse liver after partial hepatectomy was studied. Partial hepatectomy resulted in the rapid onset of cellular DNA synthesis and the appearance of many mitotic figures (peak, 3 days after surgery). Similar changes were not seen in control animals. After partial hepatectomy, the ...

journal_title：Infection and immunity

authors： Fang ZY,Tenser RB,Rapp F

更新日期：1983-10-01 00:00:00

abstract：:In studies of immunity to malaria, the absence of febrile malaria is commonly considered evidence of "protection." However, apparent "protection" may be due to a lack of exposure to infective mosquito bites or due to immunity. We studied a cohort that was given curative antimalarials before monitoring began and docume...

journal_title：Infection and immunity

authors： Bejon P,Warimwe G,Mackintosh CL,Mackinnon MJ,Kinyanjui SM,Musyoki JN,Bull PC,Marsh K

更新日期：2009-05-01 00:00:00

abstract：:Mouse peritoneal macrophages were successfully infected with two strains of Junin virus producing high titers with no apparent cell damage. Infected cultures survived longer than noninfected cultures. The pattern of virus release suggested a persistent infection. Virus replication was delayed in macrophages from mice ...

journal_title：Infection and immunity

authors： González PH,Lampuri JS,Coto CE,Laguens RP

更新日期：1982-01-01 00:00:00

abstract：:Phospholipase A2 and lysophospholipase activities were detected in the culture supernatant fluids of a virulent strain of Vibrio vulnificus. The phospholipase A2 was inactivated by heating at 56 degrees C for 30 min, had an apparent molecular weight of greater than or equal to 80,000 (estimated by gel filtration with ...

journal_title：Infection and immunity

authors： Testa J,Daniel LW,Kreger AS

更新日期：1984-08-01 00:00:00

abstract：:Antisera were produced by inoculation of mycoplasma cells grown in PPLO broth supplemented with rabbit serum alone or rabbit serum plus Freund complete or incomplete adjuvant. By using an enzyme-linked immunosorbent assay, immunoglobulin G antibodies to cholesterol were detected in antisera to mycoplasmas (Mycoplasma ...

journal_title：Infection and immunity

authors： Watanabe T,Kumazawa T

更新日期：1991-06-01 00:00:00

abstract：:Using a murine respiratory infection model, we have demonstrated previously that infection with Bordetella pertussis or immunization with a whole-cell pertussis vaccine induced antigen-specific Th1 cells, which conferred a high level of protection against aerosol challenge. In contrast, immunization with an acellular ...

journal_title：Infection and immunity

authors： Mahon BP,Ryan MS,Griffin F,Mills KH

更新日期：1996-12-01 00:00:00

abstract：:The pathogenic role of staphylococcal coagulase and clumping factor was investigated in the rat model of endocarditis. The coagulase-producing and clumping factor-producing parent strain Staphylococcus aureus Newman and a series of mutants defective in either coagulase, clumping factor, or both were tested for their a...

journal_title：Infection and immunity

authors： Moreillon P,Entenza JM,Francioli P,McDevitt D,Foster TJ,François P,Vaudaux P

更新日期：1995-12-01 00:00:00

abstract：:A heterogeneous subset of extraintestinal pathogenic Escherichia coli (ExPEC) strains, referred to as uropathogenic E. coli (UPEC), causes most uncomplicated urinary tract infections. However, no core set of virulence factors exists among UPEC strains. Instead, the focus of the analysis of urovirulence has shifted to ...

journal_title：Infection and immunity

authors： Engstrom MD,Alteri CJ,Mobley HL

更新日期：2014-09-01 00:00:00

abstract：:We investigated the effect of the extracellular protease of Serratia marcescens on human serum constituents such as immunoglobulins, fibronectin, alpha 1-protease inhibitor, alpha 2-macroglobulin, lysozyme, and transferrin. At a very low concentration of Serratia 56-kilodalton protease (56K protease), purified human p...

journal_title：Infection and immunity

authors： Molla A,Matsumoto K,Oyamada I,Katsuki T,Maeda H

更新日期：1986-09-01 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 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：:The protozoan parasite Entamoeba histolytica causes amebic dysentery and amebic liver abscess, diseases associated with significant morbidity and mortality worldwide. E. histolytica infection appears to involve the initial attachment of amebic trophozoites to intestinal epithelial cells, followed by lysis of these cel...

journal_title：Infection and immunity

authors： Seydel KB,Li E,Swanson PE,Stanley SL Jr

更新日期：1997-05-01 00:00:00

abstract：:Escherichia coli heat-stable enterotoxin (ST) appears to cause intestinal fluid secretion by activating intestinal particulate guanylate cyclase. Recent studies suggest that chlorpromazine and quinacrine reduce the intestinal secretory response to ST and activation of guanylate cyclase by ST. We have examined the effe...

journal_title：Infection and immunity

authors： Greenberg RN,Murad F,Guerrant RL

更新日期：1982-02-01 00:00:00

abstract：:Archival gastric tissues from 10 of 39 gnotobiotic piglets colonized with Helicobacter pylori 26695 contained stromal leukocytic inflammation along with ulcers and erosions. In contrast, gastric tissues from 54 archival control piglets were devoid of both inflammation and ulcers. These data confirm the hypothesis that...

journal_title：Infection and immunity

authors： Krakowka S,Eaton KA,Rings DM

更新日期：1995-06-01 00:00:00

abstract：:Members of our group reported recently that neisseria infection of human epithelial cells results in accelerated degradation of the major lysosomal integral membrane protein LAMP1 and that this is due to hydrolysis of this glycoprotein at its immunoglobulin A1 (IgA1)-like hinge by the neisseria type 2 IgA1 protease (L...

journal_title：Infection and immunity

authors： Ayala P,Lin L,Hopper S,Fukuda M,So M

更新日期：1998-10-01 00:00:00

abstract：:The parameters of a persistent-state measles virus infection in BGM/MV cells were examined. The BGM/MV cell line was established by cocultivation of measles virus-infected primary C3H mouse brain cells with a stable line of African green monkey kidney cells (BGM). Initially, a morphologically mixed population of cells...

journal_title：Infection and immunity

authors： Menna JH,Collins AR,Flanagan TD

更新日期：1975-01-01 00:00:00

abstract：:Staphylococcus aureus nasal carriage is a risk factor for infection in humans, particularly in the hospital environment. Attenuation of carriage has proven effective in reducing the prevalence of infection in some high-risk groups. To study staphylococcal factors that influence nasal colonization, a mouse model of S. ...

journal_title：Infection and immunity

authors： Kiser KB,Cantey-Kiser JM,Lee JC

更新日期：1999-10-01 00:00:00

abstract：:Glucan-binding protein B (GbpB) from Streptococcus mutans has been shown to induce protective immunity to dental caries in experimental models. Having recently sequenced the gbpB gene, our objective in this study was to identify immunogenic regions within the GbpB sequence for use in subunit vaccines. Potential region...

journal_title：Infection and immunity

authors： Smith DJ,King WF,Barnes LA,Peacock Z,Taubman MA

更新日期：2003-03-01 00:00:00

abstract：:Exoantigens of Plasmodium vivax-parasitized erythrocytes stimulated macrophages to secrete tumor necrosis factor, and antisera raised against the exoantigens inhibited this secretion. The antisera also inhibited the activity of Plasmodium falciparum and Plasmodium yoelii exoantigens, and conversely, antisera against t...

journal_title：Infection and immunity

authors： Bate CA,Taverne J,Karunaweera ND,Mendis KN,Kwiatkowski D,Playfair JH

更新日期：1992-03-01 00:00:00

abstract：:The Staphylococcus aureus repeat (STAR) element is a sequence identified in two intergenic regions in S. aureus. The element is found in 13 to 21 copies in individual S. aureus strains, and elements in the homologous intergenic location are variable in length. The element sequence consists of several small and unusual...

journal_title：Infection and immunity

authors： Cramton SE,Schnell NF,Götz F,Brückner R

更新日期：2000-04-01 00:00:00

abstract：:This study assessed the effect of periodontal therapy on specific serum antibody concentration, expressed as titer, and antibody binding strength, expressed as relative avidity. The immune responses to Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans were investigated. Antibody titer was assayed by en...

journal_title：Infection and immunity

authors： Mooney J,Adonogianaki E,Riggio MP,Takahashi K,Haerian A,Kinane DF

更新日期：1995-09-01 00:00:00

abstract：:A plaque assay system for pathogenic rickettsiae, which utilizes primary chick embryo tissue cultures, is described. It proved to be a highly reproducible measure of infectiousness for Rickettsia rickettsi and R. typhi, which were employed in most studies; as well as for R. canada, R. prowazeki, R. sibirica, R. akari,...

journal_title：Infection and immunity

authors： Wike DA,Tallent G,Peacock MG,Ormsbee RA

更新日期：1972-05-01 00:00:00

abstract：:Tuberculosis (TB) remains an enormous global health problem, and a new vaccine against TB more potent than the current inadequate vaccine, Mycobacterium bovis BCG, is urgently needed. We describe a recombinant BCG vaccine (rBCG30) expressing and secreting the 30-kDa major secretory protein of Mycobacterium tuberculosi...

journal_title：Infection and immunity

authors： Horwitz MA,Harth G

更新日期：2003-04-01 00:00:00

abstract：:In Vibrio cholerae, the transmembrane DNA binding proteins, ToxR and TcpP, activate expression of the regulatory gene toxT in response to specific environmental signals. The resulting enhanced level of ToxT leads to a coordinated increase in the production of a subset of virulence factors, including cholera toxin (CT)...

journal_title：Infection and immunity

authors： Krishnan HH,Ghosh A,Paul K,Chowdhury R

更新日期：2004-07-01 00:00:00

abstract：:Human systemic antibody levels to oral members of the Bacteroides genus were assessed with an enzyme-linked immunosorbent assay. Antibody levels to B. gingivalis, two homology groups of B. intermedius, B. melaninogenicus, B. denticola, B. loescheii, B. corporis, B. oralis, B. buccae, and B. gracilis were determined in...

journal_title：Infection and immunity

authors： Ebersole JL,Taubman MA,Smith DJ,Frey DE

更新日期：1986-02-01 00:00:00