Evaluation of vascular clearance as a marker for virulence of alphaviruses: disassociation of rapid clearance with low virulence of venezuelan encephalitis virus strains in guinea pigs.

abstract：:The P8 proteoglycolipid complex (P8 PGLC) is a glyconjugate expressed by Leishmania mexicana complex parasites. We previously have shown that vaccination with P8 PGLC provides protection against cutaneous leishmaniasis in susceptible BALB/c mice. However, the biological importance of this complex remains unknown. Here...

journal_title：Infection and immunity

authors： Whitaker SM,Colmenares M,Pestana KG,McMahon-Pratt D

更新日期：2008-05-01 00:00:00

abstract：:Very little is known about the host response to chlamydial genital infection in the male, particularly about the nature of the local response in the urethra. In this study, the pathological and immunologic responses to urethral infection of the male guinea pig with Chlamydia caviae (Chlamydophila caviae) were characte...

journal_title：Infection and immunity

authors： Wang Y,Nagarajan U,Hennings L,Bowlin AK,Rank RG

更新日期：2010-04-01 00:00:00

abstract：:Iron acquisition from the host is an important step in the pathogenic process. While Yersinia pestis has multiple iron transporters, the yersiniabactin (Ybt) siderophore-dependent system plays a major role in iron acquisition in vitro and in vivo. In this study, we determined that the Ybt system is required for the us...

journal_title：Infection and immunity

authors： Fetherston JD,Kirillina O,Bobrov AG,Paulley JT,Perry RD

更新日期：2010-05-01 00:00:00

abstract：:Anthrax lethal toxin (LeTx), consisting of protective antigen (PA) and lethal factor (LF), rapidly kills primary mouse macrophages and macrophage-like cell lines such as RAW 264.7. LF is translocated by PA into the cytosol of target cells, where it acts as a metalloprotease to cleave mitogen-activated protein kinase k...

journal_title：Infection and immunity

authors： Tang G,Leppla SH

更新日期：1999-06-01 00:00:00

abstract：:Microsporidia are obligate intracellular parasites that are ubiquitous in nature and have been recognized as causing an important emerging disease among immunocompromised individuals. Limited knowledge exists about the immune response against these organisms, and virtually nothing is known about the receptors involved...

journal_title：Infection and immunity

authors： Fischer J,Suire C,Hale-Donze H

更新日期：2008-10-01 00:00:00

abstract：:Peroral immunization with a live strain of Escherichia coli O6K13H1 against experimental ascending pyelonephritis caused by the same strain was studied in rats, and the effect of immunization on antibody titers against the O and K antigens and lipid A was determined. Peroral immunization with live bacteria protected s...

journal_title：Infection and immunity

authors： Mattsby-Baltzer I,Hanson LA,Olling S,Kaijser B

更新日期：1982-02-01 00:00:00

abstract：:Early-onset periodontitis (EOP) is characterized by rapidly progressive alveolar bone loss, chemotactic defects of neutrophils, and significant familial aggregation. We found immature myeloid lineage cells, defined as promyelocytes, in the peripheral blood in patients with EOP. A hematological examination of periphera...

journal_title：Infection and immunity

authors： Nemoto E,Nakamura M,Shoji S,Horiuchi H

更新日期：1997-09-01 00:00:00

abstract：:Studies conducted with F1 and F2 progeny of crosses between strains of inbred mice that differ greatly in their capacity to make an antibody response to type III pneumococcal polysaccharide, dextran B-1355, and lipopolysaccharide from Escherichia coli 0113 have shown that multiple genes influence the magnitude of the ...

journal_title：Infection and immunity

authors： Baker PJ,Rudbach JA,Prescott B,Caldes G,Evans C,Stashak PW

更新日期：1984-07-01 00:00:00

abstract：:Subchronic exposure to pharmacological levels of estrogenic compounds, including 17 beta-estradiol, diethylstilbestrol, and alpha-dienestrol, significantly increased the mortality of B6C3F1 female mice after Listeria infection. Compounds with little estrogenic activity, including 5 alpha-dihydrotestosterone, progester...

journal_title：Infection and immunity

authors： Pung OJ,Luster MI,Hayes HT,Rader J

更新日期：1984-11-01 00:00:00

abstract：:A monoclonal antibody was used to characterize a 135-kDa surface-located membrane protein (Lmp1) generally present in Mycoplasma hominis strains. The monoclonal antibody, 552, was applied to identify the corresponding gene in an expression library of M. hominis PG21 DNA. The M. hominis PG21 lmp1 gene was sequenced, an...

journal_title：Infection and immunity

authors： Ladefoged SA,Birkelund S,Hauge S,Brock B,Jensen LT,Christiansen G

更新日期：1995-01-01 00:00:00

abstract：:Hot phenol-water extraction of smooth Brucella abortus and B. melitensis cells yielded a toxic fraction which was recovered from the phenol phase (fraction 5). Chemically, fractions 5 from both Brucella species were lipid-carbohydrate-protein-2 keto-3-deoxyoctulosonic acid complexes which were stable to heat and resis...

journal_title：Infection and immunity

authors： Leong D,Diaz R,Milner K,Rudbach J,Wilson JB

更新日期：1970-02-01 00:00:00

abstract：:Inbred CBA/J mice were used in developing a defined in vivo model for studying host-parasite relationships in cryptococcosis. Mice were infected either intranasally or intraperitoneally with 10(3) viable Cryptococcus neoformans cells. At weekly intervals over a 92-day period, C. neoformans growth profiles in the lungs...

journal_title：Infection and immunity

authors： Lim TS,Murphy JW,Cauley LK

更新日期：1980-08-01 00:00:00

abstract：:It has been previously reported that although inducible nitric oxide synthase (iNOS) gene knockout (NOS2(-/-)) mice resolve Chlamydia trachomatis genital infection, the production of reactive nitrogen species (RNS) via iNOS protects a significant proportion of mice from hydrosalpinx formation and infertility. We now r...

journal_title：Infection and immunity

authors： Ramsey KH,Sigar IM,Rana SV,Gupta J,Holland SM,Byrne GI

更新日期：2001-12-01 00:00:00

abstract：:Helicobacter pylori colonizes the gastric epithelium of at least 50% of the world's human population, playing a causative role in the development of chronic gastritis, peptic ulcers, and gastric adenocarcinoma. Current evidence indicates that H. pylori can invade epithelial cells in the gastric mucosa. However, relati...

journal_title：Infection and immunity

authors： Terebiznik MR,Vazquez CL,Torbicki K,Banks D,Wang T,Hong W,Blanke SR,Colombo MI,Jones NL

更新日期：2006-12-01 00:00:00

abstract：:Most oral bacteria tested formed colonies on a chemically defined medium with a chromogenic arylsulfatase substrate. Arylsulfatase activity was, however, restricted to Campylobacter-Wolinella group organisms, including Wolinella recta, a possible periodontopathogen. W. recta was the only arylsulfatase-active species a...

journal_title：Infection and immunity

authors： Wyss C

更新日期：1989-05-01 00:00:00

abstract：:Microbial heat shock proteins (HSP) are dominant antigens for the host immune response. Because of the high sequence homology between mammalian and microbial HSP, their value as component of a subunit vaccine has been the subject of controversy. Previous work from this laboratory, however, demonstrated for the first t...

journal_title：Infection and immunity

authors： Noll A,AutenriethIB

更新日期：1996-08-01 00:00:00

abstract：:We have examined the ability of peptidoglycan (PepG) and lipoteichoic acid (LTA) isolated from Staphylococcus aureus to induce the release of tumor necrosis factor alpha (TNF-alpha), interleukin-6 (IL-6), and IL-10 in whole human blood and identified the cellular origins of these cytokines. Both PepG and LTA induced t...

journal_title：Infection and immunity

authors： Wang JE,Jørgensen PF,Almlöf M,Thiemermann C,Foster SJ,Aasen AO,Solberg R

更新日期：2000-07-01 00:00:00

abstract：:ATP and UTP have been proposed for use as therapeutic treatment of the abnormal ion transport in the airway epithelium in cystic fibrosis (CF), the most characteristic feature of which is permanent infection by Pseudomonas aeruginosa. As for diverse gram-negative bacteria, this pathogenic bacterium accumulates diffusi...

journal_title：Infection and immunity

authors： Saleh A,Figarella C,Kammouni W,Marchand-Pinatel S,Lazdunski A,Tubul A,Brun P,Merten MD

更新日期：1999-10-01 00:00:00

abstract：:The NikR protein is a nickel-dependent regulatory protein which is a member of the ribbon-helix-helix family of transcriptional regulators. The gastric pathogen Helicobacter pylori expresses a NikR ortholog, which was previously shown to mediate regulation of metal metabolism and urease expression, but the mechanism g...

journal_title：Infection and immunity

authors： Ernst FD,Kuipers EJ,Heijens A,Sarwari R,Stoof J,Penn CW,Kusters JG,van Vliet AH

更新日期：2005-11-01 00:00:00

abstract：:The goal of this study is to evaluate the contribution of mast cells to Helicobacter pylori immunity in a model of vaccine-induced protection. Mast cell-deficient Kitl(Sl)/Kitl(Sl-d) and control mice were immunized with H. pylori sonicate plus cholera toxin and challenged with H. pylori, and the bacterial loads, infla...

journal_title：Infection and immunity

authors： Ding H,Nedrud JG,Wershil B,Redline RW,Blanchard TG,Czinn SJ

更新日期：2009-12-01 00:00:00

abstract：:Under certain circumstances, soluble antigens, particulate antigens, and/or microorganisms have been shown to bind to primate erythrocytes via complement receptor 1 (CR1) in the presence of specific antibodies and complement. This immune adherence reaction, specific for CR1, can lead to neutralization of antigens in t...

journal_title：Infection and immunity

authors： Powers JH,Buster BL,Reist CJ,Martin E,Bridges M,Sutherland WM,Taylor RP,Scheld WM

更新日期：1995-04-01 00:00:00

abstract：:Attachment and ingestion of Mycobacterium avium subsp. paratuberculosis by two epithelial cell lines were enhanced by soluble fibronectin (FN). Peptide blocking of the FN attachment protein (FAP-P) inhibited the internalization of M. avium subsp. paratuberculosis. Disruption of FAP-P expression significantly reduced a...

journal_title：Infection and immunity

authors： Secott TE,Lin TL,Wu CC

更新日期：2002-05-01 00:00:00

abstract：:Mice injected intravenously with a commercially available extract of Coxiella burnetii prepared for use as the antigen in the complement fixation diagnostic test for Q fever were subsequently resistant to infection with Babesia microti, Babesia rodhaini, and Plasmodium vinckei petteri. The parasites appeared to die in...

journal_title：Infection and immunity

authors： Clark IA

更新日期：1979-05-01 00:00:00

abstract：:Humans infected with the dimorphic fungus Blastomyces dermatitidis develop strong T-lymphocyte responses to WI-1, an immunodominant antigen that has been shown to elicit protective immunity in mice. In the present study, the T-cell epitopes of WI-1 and human leukocyte antigen (HLA) restricting elements that display th...

journal_title：Infection and immunity

authors： Chang WL,Audet RG,Aizenstein BD,Hogan LH,DeMars RI,Klein BS

更新日期：2000-02-01 00:00:00

abstract：:In a mouse model of thermal injury, an increase in burn size produced a decrease in the ratio of Candida albicans cells adherent to the marginal zone to those adherent to the white pulp of the spleen, an increase in the number of Candida cells in the circulation and in the kidneys, and an increase in mortality. ...

journal_title：Infection and immunity

authors： Neely AN,Orloff MM,Holder IA,Healy DP

更新日期：1997-08-01 00:00:00

abstract：:Intracellular multiplication of virulent Legionella pneumophila serogroup 1 was inhibited by human monocyte-derived macrophages activated by a glycoprotein extract of Klebsiella pneumoniae, RU 41.740. Macrophage cultures were infected with L. pneumophila in the presence of immune antibodies on day 7 of culture. Extrac...

journal_title：Infection and immunity

authors： Rajagopalan P,Dournon E,Vildé JL,Pocidalo JJ

更新日期：1987-09-01 00:00:00

abstract：:The purpose of this study was to determine the effects of human monocytes, macrophages, and polymorphonuclear neutrophils (PMN) on the fungal pathogen Blastomyces dermatitidis in vitro. Peripheral blood monocyte monolayers significantly inhibited the replication of a virulent strain (V) and an avirulent strain (AV) of...

journal_title：Infection and immunity

authors： Brummer E,Stevens DA

更新日期：1982-04-01 00:00:00

abstract：:The plasmid-encoded structural gene cofA necessary for the production of the major pilin subunit of pilus colonization factor antigen III (CFA/III) of human enterotoxigenic Escherichia coli was identified, and the nucleotide sequence of the gene was determined. cofA consists of 714 nucleotides encoding a 238-amino-aci...

journal_title：Infection and immunity

authors： Taniguchi T,Fujino Y,Yamamoto K,Miwatani T,Honda T

更新日期：1995-02-01 00:00:00

abstract：:We report the cloning and expression of Ac-GST-1, a novel glutathione S-transferase from the adult hookworm Ancylostoma caninum, and its possible role in parasite blood feeding and as a vaccine target. The predicted Ac-GST-1 open reading frame contains 207 amino acids (mass, 24 kDa) and exhibited up to 65% amino acid ...

journal_title：Infection and immunity

authors： Zhan B,Liu S,Perally S,Xue J,Fujiwara R,Brophy P,Xiao S,Liu Y,Feng J,Williamson A,Wang Y,Bueno LL,Mendez S,Goud G,Bethony JM,Hawdon JM,Loukas A,Jones K,Hotez PJ

更新日期：2005-10-01 00:00:00

abstract：:Porphyromonas gingivalis, a periodontopathic bacterium, is known to invade oral epithelial cells in periodontal lesions, although the mechanism is unclear. In the present study, goat polyclonal anti-intercellular adhesion molecule 1 (anti-ICAM-1) antibody inhibited the invasion of P. gingivalis into KB cells (human or...

journal_title：Infection and immunity

authors： Tamai R,Asai Y,Ogawa T

更新日期：2005-10-01 00:00:00