Production and characterization of monoclonal antibodies against Clostridium perfringens type A enterotoxin.

abstract：:In this study we found that serum inhibitory activity against Blastomyces dermatitidis was principally mediated by albumin. This was confirmed in experiments using albumin from several mammalian species. Analbuminemic rat serum did not inhibit B. dermatitidis growth in vivo; however, the addition of albumin restored i...

journal_title：Infection and immunity

authors： Giles S,Czuprynski C

更新日期：2003-11-01 00:00:00

abstract：:A procedure is described for isolating a high-molecular-weight polysaccharide (PS) from the slime of Pseudomonas aeruginosa immunotype 1. The resultant material, obtained from the void volume of a Sephadex G-100 column, was composed of carbohydrate and water. No lipopolysaccharide (LPS), 2-keto-3-deoxyoctonoate, hepto...

journal_title：Infection and immunity

authors： Pier GB,Sidberry HF,Zolyomi S,Sadoff JC

更新日期：1978-12-01 00:00:00

abstract：:Host control of Coxiella burnetii infections is believed to be mediated primarily by activated monocytes/macrophages. The activation of macrophages by cytokines leads to the production of reactive oxygen intermediates (ROI) and reactive nitrogen intermediates (RNI) that have potent antimicrobial activities. The contri...

journal_title：Infection and immunity

authors： Brennan RE,Russell K,Zhang G,Samuel JE

更新日期：2004-11-01 00:00:00

abstract：:Natural killer (NK) cells are critically involved in the early immune response against various intracellular pathogens, including Coxiella burnetii and Chlamydia psittaciChlamydia-infected NK cells functionally mature, induce cellular immunity, and protect themselves by killing the bacteria in secreted granules. Here,...

journal_title：Infection and immunity

authors： Matthiesen S,Zaeck L,Franzke K,Jahnke R,Fricke C,Mauermeir M,Finke S,Lührmann A,Knittler MR

更新日期：2020-10-19 00:00:00

abstract：:Contributions of the alternative sigma factor sigmaB to Listeria monocytogenes infection were investigated using strains bearing null mutations in sigB, prfA, or inlA or in selected inlA or prfA promoter regions. The DeltaP4inlA strain, which has a deletion in the sigmaB-dependent P4inlA promoter, and the DeltasigB st...

journal_title：Infection and immunity

authors： Garner MR,Njaa BL,Wiedmann M,Boor KJ

更新日期：2006-02-01 00:00:00

abstract：:A recent study demonstrated that polyclonal antibodies to Rickettsia conorii and monoclonal antibodies to outer membrane proteins A (OmpA) and B (OmpB) provided effective, Fc-dependent, passive immunity, even in severe combined immunodeficient mice with an established infection. In order to determine the mechanism of ...

journal_title：Infection and immunity

authors： Feng HM,Whitworth T,Popov V,Walker DH

更新日期：2004-06-01 00:00:00

abstract：:Immune complexes have been partially purified from the serum of Plasmodium berghei-infected mice by ultracentrifugation on 10 to 40% linear sucrose gradients, by precipitation with polyethylene glycol, and by gel filtration through Sephacryl S-300. The complexes contain gamma 1, gamma 2a, gamma 2b, and gamma 3 subclas...

journal_title：Infection and immunity

authors： Shear HL

更新日期：1984-04-01 00:00:00

abstract：:It has been reported that Neisseria gonorrhoeae possesses a very high level of catalase activity, but the regulation of catalase expression has not been investigated extensively. In Escherichia coli and Salmonella enterica serovar Typhimurium, it has been demonstrated that OxyR is a positive regulator of hydrogen pero...

journal_title：Infection and immunity

authors： Tseng HJ,McEwan AG,Apicella MA,Jennings MP

更新日期：2003-01-01 00:00:00

abstract：:Interferon regulatory factor 1-deficient (IRF-1(-/-)) mice infected with virulent Brucella abortus 2308 at 5 x 10(5) CFU developed acute hepatitis similar to many natural hosts but, unlike natural hosts, IRF-1(-/-) mice were unable to resolve infection and died. In contrast, IRF-1(-/-) mice survived when infected at 5...

journal_title：Infection and immunity

authors： Ko J,Gendron-Fitzpatrick A,Ficht TA,Splitter GA

更新日期：2002-12-01 00:00:00

abstract：:Hydroxystilbamidine (HSB) is a potent suppressor of the plaque-forming cell response of mice injected with heterologous erythrocytes. HSB, given in varying doses and injection schedules, suppressed both the primary and secondary immune responses to bovine serum albumin. Apparently the effect is not simply a toxic effe...

journal_title：Infection and immunity

authors： Folds JD,Orlando G,Spitznagel JK

更新日期：1975-03-01 00:00:00

abstract：:We have demonstrated that possession of the gene for thermostable direct hemolysin-related hemolysin (trh) coincides with the presence of the urease gene among clinical Vibrio parahaemolyticus strains and that the location of the two genes are in close proximity on the chromosome. Here, we cloned and sequenced the 15,...

journal_title：Infection and immunity

authors： Park KS,Iida T,Yamaichi Y,Oyagi T,Yamamoto K,Honda T

更新日期：2000-10-01 00:00:00

abstract：:C-reactive protein (CRP) has long been known to appear in the sera of individuals with inflammatory processes, but its role in host defense against bacterial infection is unclear. We have recently demonstrated that CRP in the presence of the classical complement pathway markedly enhances the opsonization of Streptococ...

journal_title：Infection and immunity

authors： Mold C,Edwards KM,Gewurz H

更新日期：1982-09-01 00:00:00

abstract：:Since we previously observed a remarkable decrease in the numbers of T cells in the Peyer's patches of the small intestines in C57BL/6 mice following peroral infection with Toxoplasma gondii, we performed studies to examine the mechanism(s) whereby this decrease in numbers of the T cells occurs. We found that apoptoti...

journal_title：Infection and immunity

authors： Liesenfeld O,Kosek JC,Suzuki Y

更新日期：1997-11-01 00:00:00

abstract：:Cysteine proteases, including Arg-gingipain of Porphyromonas gingivalis, have been implicated as important virulence factors in periodontal diseases. These enzymes are also involved in the hemagglutinating activity of the organisms. In order to determine the role of proteases in the colonization of the gingival margin...

journal_title：Infection and immunity

authors： Tokuda M,Duncan M,Cho MI,Kuramitsu HK

更新日期：1996-10-01 00:00:00

abstract：:Agglutinogen 1 of Bordetella pertussis strain 353/Z (serotype 1) was separated from protective antigen and histamine-sensitizing factor by starch-block electrophoresis. Most of the agglutinogen 1 migrated towards the cathode in starch-block electrophoresis, although some remained near the origin. Fractions containing ...

journal_title：Infection and immunity

authors： Ross RF,Munoz J

更新日期：1971-02-01 00:00:00

abstract：:The levels of protection found in vaccine studies of murine visceral leishmaniasis are significantly lower than for cutaneous leishmaniasis; whether this is due to the high-challenge murine model employed and/or is a consequence of differences required in tissue-specific local immune responses is not understood. Conse...

journal_title：Infection and immunity

authors： Ahmed S,Colmenares M,Soong L,Goldsmith-Pestana K,Munstermann L,Molina R,McMahon-Pratt D

更新日期：2003-01-01 00:00:00

abstract：:Production of interleukin-10 (IL-10) by C57BL/6 mice following infection with Borrelia burgdorferi has been proposed as a mechanism whereby resistance to the development of experimental Lyme arthritis is maintained. In the current study, we sought to determine the role of IL-10 during infection of arthritis- and cardi...

journal_title：Infection and immunity

authors： Brown CR,Lai AY,Callen ST,Blaho VA,Hughes JM,Mitchell WJ

更新日期：2008-12-01 00:00:00

abstract：:In attempts to reactivate latent herpes simplex virus, we instilled Diplococcus pneumoniae intratracheally into mice harboring latent infections in sacrosciatic spinal ganglia. All mice developed a severe pneumonia within 24 h and were given penicillin therapy. Representative mice that survived the penumonia were sacr...

journal_title：Infection and immunity

authors： Stevens JG,Cook ML,Jordan MC

更新日期：1975-04-01 00:00:00

abstract：:Neisseria gonorrhoeae, the causative agent of the sexually transmitted infection (STI) gonorrhea, is a growing public health threat for which a vaccine is urgently needed. We characterized the functional role of the gonococcal MetQ protein, which is the methionine binding component of an ABC transporter system, and as...

journal_title：Infection and immunity

authors： Semchenko EA,Day CJ,Seib KL

更新日期：2017-01-26 00:00:00

abstract：:Bordetella pertussis is the causative agent of whooping cough, a potentially lethal respiratory disease in children. In immunocompetent individuals, B. pertussis infection elicits an effective adaptive immune response driven by activated CD4(+) T cells. However, live B. pertussis persists in the host for 3 to 4 weeks ...

journal_title：Infection and immunity

authors： Shumilla JA,Lacaille V,Hornell TM,Huang J,Narasimhan S,Relman DA,Mellins ED

更新日期：2004-03-01 00:00:00

abstract：:Toll-like receptor (TLR)-based signaling pathways in the host may be modulated by pathogens during the course of infection. We describe a novel immunomodulatory mechanism in which Aspergillus fumigatus conidia induce attenuation of TLR2- and TLR4-mediated interleukin (IL)-6 and IL-1beta proinflammatory responses in hu...

journal_title：Infection and immunity

authors： Chai LY,Kullberg BJ,Vonk AG,Warris A,Cambi A,Latgé JP,Joosten LA,van der Meer JW,Netea MG

更新日期：2009-05-01 00:00:00

abstract：:The interactions between Capnocytophaga ochracea ATCC 33596 and Streptococcus sanguis H1, Actinomyces naeslundii PK984, or Actinomyces israelii PK16 are dependent on specific recognitions between heat-sensitive adhesins on C. ochracea and heat-stable structures (probably carbohydrate-containing receptors) on the surfa...

journal_title：Infection and immunity

authors： Weiss EI,London J,Kolenbrander PE,Kagermeier AS,Andersen RN

更新日期：1987-05-01 00:00:00

abstract：:Cholera enterotoxin and the related heat-labile enterotoxins of Escherichia coli enter their target cells through noncoated vesicles, but how the toxins are processed intracellularly and how they get to their targeted enzyme, adenylate cyclase, remain to be defined. Brefeldin A, an inhibitor of the trans-Golgi network...

journal_title：Infection and immunity

authors： Donta ST,Beristain S,Tomicic TK

更新日期：1993-08-01 00:00:00

abstract：:The serum opacity factor (SOF) of Streptococcus pyogenes is a serotyping tool and pathogenesis factor. Using SOF-coated latex beads in cell adherence assays and antiserum directed against SOF in S. pyogenes-HEp-2 cell adherence inhibition experiments, we demonstrate SOF involvement in the fibronectin-mediated adherenc...

journal_title：Infection and immunity

authors： Oehmcke S,Podbielski A,Kreikemeyer B

更新日期：2004-07-01 00:00:00

abstract：:We have developed experimental murine Campylobacter infection models which demonstrate efficient establishment and reproducible, high-level colonization. Following oral inoculation, wild-type C3H mice with normal enteric flora were colonized inconsistently and inefficiently by C. jejuni strain 81-176. However, C3H mic...

journal_title：Infection and immunity

authors： Chang C,Miller JF

更新日期：2006-09-01 00:00:00

abstract：:Ultrastructural immunoperoxidase studies were done in spinal cords of mice infected with wild type vesicular stomatitis virus or its temperature-sensitive (ts) mutant G31. Infected neurons showed subplasmalemmal staining of viral antigen and staining of viral particles budding from the neuronal membrane in wild-type v...

journal_title：Infection and immunity

authors： Dal Canto MC,Rabinowitz SG,Johnson TC,Hughes JV

更新日期：1979-04-01 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：:Cholera is an acute diarrheal disease that is caused by the gram-negative bacterium Vibrio cholerae. The low efficacy of currently available killed-whole-cell vaccines and the reactinogenicity coupled with potential reversion of live vaccines have thus far precluded widespread vaccination for the control of cholera. R...

journal_title：Infection and immunity

authors： Wu JY,Wade WF,Taylor RK

更新日期：2001-12-01 00:00:00

abstract：:The initial encounter of Leishmania cells and cells from the immune system is fundamentally important in the outcome of infection and determines disease development or resistance. We evaluated the anti-Leishmania amazonensis response of naive volunteers by using an in vitro priming (IVP) system and comparing the respo...

journal_title：Infection and immunity

authors： Pompeu MM,Brodskyn C,Teixeira MJ,Clarêncio J,Van Weyenberg J,Coelho IC,Cardoso SA,Barral A,Barral-Netto M

更新日期：2001-12-01 00:00:00

abstract：:Previous studies suggested that nontypeable Haemophilus influenzae (NTHI) can form biofilms during human and chinchilla middle ear infections. Microscopic analysis of a 5-day biofilm of NTHI strain 2019 grown in a continuous-flow chamber revealed that the biofilm had a diffuse matrix interlaced with multiple water cha...

journal_title：Infection and immunity

authors： Greiner LL,Watanabe H,Phillips NJ,Shao J,Morgan A,Zaleski A,Gibson BW,Apicella MA

更新日期：2004-07-01 00:00:00