Staphylococcus aureus Isolated from Skin from Atopic-Dermatitis Patients Produces Staphylococcal Enterotoxin Y, Which Predominantly Induces T-Cell Receptor Vα-Specific Expansion of T Cells.

abstract：:Ehrlichia chaffeensis and Anaplasma phagocytophilum are agents of human monocytic and granulocytic ehrlichioses, respectively. They are extremely sensitive to mechanical stress and are pleomorphic gram-negative bacteria. Membrane incorporation of cholesterol from the eukaryotic host is known to be essential for other ...

journal_title：Infection and immunity

authors： Lin M,Rikihisa Y

更新日期：2003-09-01 00:00:00

abstract：:We have discovered two distinctly different fimbriae expressed by the same Porphyromonas gingivalis strain. The construction of a fimA mutant of P. gingivalis ATCC 33277 has previously been reported by N. Hamada et al. (Infect. Immun. 62:1696-1704, 1994). Expression of fimbriae on the surface of the fimA mutant and th...

journal_title：Infection and immunity

authors： Hamada N,Sojar HT,Cho MI,Genco RJ

更新日期：1996-11-01 00:00:00

abstract：:The LuxS protein is required for the biosynthesis of the type 2 autoinducer (AI-2), which is involved in quorum sensing in a wide range of bacterial species. We have determined the effects of a defined luxS mutation on the virulence of Streptococcus pneumoniae. Although the luxS mutant displayed reduced virulence rela...

journal_title：Infection and immunity

authors： Stroeher UH,Paton AW,Ogunniyi AD,Paton JC

更新日期：2003-06-01 00:00:00

abstract：:Proteins were extracted at pH 2.5 from carefully washed brain homogenates of patients with subacute sclerosing panencephalitis. Immunoglobulin G was isolated from the extracts by gel filtration and immunoadsorbent chromatography and was 125I radioiodinated. The labeled immunoglobulin G was reacted with purified measle...

journal_title：Infection and immunity

authors： Weil ML,Norrby E,Itabashi HH,Wilson R,Tourtellotte WW,Heiner DC

更新日期：1979-04-01 00:00:00

abstract：:To evaluate the role of complement in pneumococcal and staphylococcal pneumonia, we decomplemented rats with cobra venom factor and inoculated them intratracheally with Staphylococcus aureus or type 25 pneumococci. S. aureus produced a patchy bronchopneumonia in normal Sprague-Dawley or Lewis rats, and decomplementati...

journal_title：Infection and immunity

authors： Coonrod JD,Yoneda K

更新日期：1982-09-01 00:00:00

abstract：:IL12RB1 is a human gene that is important for resistance to Mycobacterium tuberculosis infection. IL12RB1 is expressed by multiple leukocyte lineages, and encodes a type I transmembrane protein (IL12Rβ1) that associates with IL12p40 and promotes the development of host-protective T(H)1 cells. Recently, we observed tha...

journal_title：Infection and immunity

authors： Ray AA,Fountain JJ,Miller HE,Cooper AM,Robinson RT

更新日期：2015-02-01 00:00:00

abstract：:A hemolysin that appears to be responsible for the zones of beta-hemolysis surrounding colonies of group B streptococci (Streptococcus agalactiae) on blood agar plates has been isolated and partially purified. No soluble hemolysin was detectable in the supernatants of streptococcal cultures grown in several types of m...

journal_title：Infection and immunity

authors： Marchlewicz BA,Duncan JL

更新日期：1980-12-01 00:00:00

abstract：:Modulation of cytosolic (intracellular) Ca(2+) concentration (Ca(i)) may be an important host response when airway epithelial cells are exposed to Pseudomonas aeruginosa. We measured Ca(i) in Calu-3 cells exposed from the apical or basolateral surface to cytotoxic and noncytotoxic strains of P. aeruginosa. Apical addi...

journal_title：Infection and immunity

authors： Jacob T,Lee RJ,Engel JN,Machen TE

更新日期：2002-11-01 00:00:00

abstract：:Nasopharyngeal colonization is a necessary first step in the pathogenesis of Streptococcus pneumoniae. Using isolates containing defined mutations in the S. pneumoniae capsule locus, we found that expression of the capsular polysaccharide is essential for colonization by the type 2 strain D39 and the type 3 strains A6...

journal_title：Infection and immunity

authors： Magee AD,Yother J

更新日期：2001-06-01 00:00:00

abstract：:A protein factor which induces high levels of gamma interferon (IFN-gamma) in resting splenic nonadherent cells was isolated from the sera of mice with generalized inflammation caused by endotoxic shock. The factor was highly purified by ammonium sulfate precipitation followed by ion-exchange column chromatography on ...

journal_title：Infection and immunity

authors： Nakamura K,Okamura H,Nagata K,Komatsu T,Tamura T

更新日期：1993-01-01 00:00:00

abstract：:The Yersinia enterocolitica gsrA gene is a stress protein gene which was originally identified as essential for protecting cells under both extracellular environmental stress and intracellular stress in macrophages due to phagocytosis. The gsrA gene was shown to be a member of the htrA class of genes and to possess a ...

journal_title：Infection and immunity

authors： Yamamoto T,Hanawa T,Ogata S,Kamiya S

更新日期：1997-06-01 00:00:00

abstract：:The P2 porin protein is the major outer membrane protein of nontypeable Haemophilus influenzae and is a potential target of a protective immune response. Nine monoclonal antibodies (MAbs) to P2 were developed by immunizing mice with nontypeable H. influenzae whole organisms. Each MAb reacted exclusively with the homol...

journal_title：Infection and immunity

authors： Haase EM,Yi K,Morse GD,Murphy TF

更新日期：1994-09-01 00:00:00

abstract：:Cell-free hemoglobin (Hb) is being developed as an erythrocyte substitute. We have previously demonstrated that cell-free Hb is an endotoxin-binding protein which disaggregates endotoxin and subsequently increases the biological activity of endotoxin in several in vitro assays. Because much of the morbidity and mortal...

journal_title：Infection and immunity

authors： Su D,Roth RI,Yoshida M,Levin J

更新日期：1997-04-01 00:00:00

abstract：:Macrophages can undergo apoptosis after infection with Mycobacterium tuberculosis. This macrophage response deprives the bacillus of its niche cell and supports the host response through better antigen presentation. The intracellular pathways of apoptosis that elaborate this macrophage response are not well understood...

journal_title：Infection and immunity

authors： O'Sullivan MP,O'Leary S,Kelly DM,Keane J

更新日期：2007-04-01 00:00:00

abstract：:Thirty percent of Streptococcus pneumoniae isolates contain pilus islet 1, coding for a pilus composed of the backbone subunit RrgB and two ancillary proteins, RrgA and RrgC. RrgA is the major determinant of in vitro adhesion associated with pilus 1, is protective in vivo in mouse models, and exists in two variants (c...

journal_title：Infection and immunity

authors： Moschioni M,Emolo C,Biagini M,Maccari S,Pansegrau W,Donati C,Hilleringmann M,Ferlenghi I,Ruggiero P,Sinisi A,Pizza M,Norais N,Barocchi MA,Masignani V

更新日期：2010-12-01 00:00:00

abstract：:Phenethyl alcohol, at the maximum concentration which did not inhibit growth (0.3% [vol/vol]), inhibited the production of alpha-lysin and exoproteases but not that of delta-lysin in Staphylococcus aureus Wood 46. The inhibition of alpha-lysin was reversible, and transient accumulation of cell-associated alpha-lysin o...

journal_title：Infection and immunity

authors： Lee KY,Birkbeck TH

更新日期：1985-01-01 00:00:00

abstract：:Ecto-5'-nucleotidase (CD73) is expressed abundantly on the apical surface of intestinal epithelial cells (IECs) and functions as the terminal enzyme in the generation of extracellular adenosine. Previous work demonstrated that adenosine signaling in IECs results in a number of tissue-protective effects during inflamma...

journal_title：Infection and immunity

authors： Kao DJ,Saeedi BJ,Kitzenberg D,Burney KM,Dobrinskikh E,Battista KD,Vázquez-Torres A,Colgan SP,Kominsky DJ

更新日期：2017-09-20 00:00:00

abstract：:Rabbit-specific enteropathogenic Escherichia coli (REPEC) is an attaching and effacing pathogen of young rabbits. Using signature-tagged mutagenesis, we identified several known colonization factors of REPEC as well as a gene predicted to encode a novel autotransporter protein. This novel gene was termed rpeA for REPE...

journal_title：Infection and immunity

authors： Leyton DL,Adams LM,Kelly M,Sloan J,Tauschek M,Robins-Browne RM,Hartland EL

更新日期：2007-09-01 00:00:00

abstract：:Mucosal exposure to Escherichia coli elicits an inflammatory response in the urinary tract. Interleukin-6 (IL-6) is secreted into the urine, and polymorphonuclear leukocytes (PMNLs) are recruited to the site of infection. This study analyzed the ability of mucosally administered bacterial components to activate IL-6 a...

journal_title：Infection and immunity

authors： Linder H,Engberg I,Hoschützky H,Mattsby-Baltzer I,Svanborg C

更新日期：1991-12-01 00:00:00

abstract：:Rabbits were immunized with the synthetic peptide EENVEHDA or (EENV)2, corresponding to a tandemly repeated sequence in the C-terminal part of the Plasmodium falciparum antigen Pf155/RESA, or with Escherichia coli-derived fusion proteins containing the corresponding repeats. For all sera, the capacity of the total imm...

journal_title：Infection and immunity

authors： Wåhlin B,Berzins K,Perlmann H,Anders RF,Perlmann P

更新日期：1990-09-01 00:00:00

abstract：:We show here that Helicobacter pylori broth culture supernatants disrupt the actin cytoskeleton of epithelial cell lines, leading to cell rounding and apoptosis through anoikis. We demonstrate that there are marked quantitative differences between strains and that there are different cell line sensitivities. By constr...

journal_title：Infection and immunity

authors： Bebb JR,Letley DP,Rhead JL,Atherton JC

更新日期：2003-06-01 00:00:00

abstract：:Streptococcus equi and Streptococcus zooepidemicus are major etiological agents of upper and lower airway disease in horses. Despite the considerable animal suffering and economic burden associated with these diseases, the factors that contribute to the virulence of these equine pathogens have not been extensively inv...

journal_title：Infection and immunity

authors： Harrington DJ,Greated JS,Chanter N,Sutcliffe IC

更新日期：2000-10-01 00:00:00

abstract：:Clostridium perfringens type B and type C isolates, which produce beta-toxin (CPB), cause fatal diseases originating in the intestines of humans or livestock. Our previous studies demonstrated that CPB is necessary for type C isolate CN3685 to cause bloody necrotic enteritis in a rabbit ileal loop model and also showe...

journal_title：Infection and immunity

authors： Vidal JE,McClane BA,Saputo J,Parker J,Uzal FA

更新日期：2008-10-01 00:00:00

abstract：:Legionella pneumophila and Coxiella burnetii are phylogenetically related intracellular bacteria that cause aerosol-transmitted lung infections. In host cells both pathogens proliferate in vacuoles whose biogenesis displays some common features. To test the functional similarity of their respective intracellular niche...

journal_title：Infection and immunity

authors： Sauer JD,Shannon JG,Howe D,Hayes SF,Swanson MS,Heinzen RA

更新日期：2005-08-01 00:00:00

abstract：:Spleen cell cultures from guinea pigs given legionella pneumophila vaccine in complete Freund adjuvant or as a sublethal infection were inhibited in their migration activity in vitro when incubated with specific antigen. Both direct and indirect migration inhibition assays revealed sensitization of the guinea pigs to ...

journal_title：Infection and immunity

authors： Friedman H,Widen R,Lee I,Klein T

更新日期：1983-09-01 00:00:00

abstract：:High levels of Treponema denticola in subgingival dental plaque are associated with severe periodontal disease. T. denticola, along with Porphyromonas gingivalis and Bacteroides forsythus, are the only cultivatable oral microorganisms that produce significant amounts of "trypsin-like" peptidase activity. The ability o...

journal_title：Infection and immunity

authors： Fenno JC,Lee SY,Bayer CH,Ning Y

更新日期：2001-10-01 00:00:00

abstract：:Athymic BALB/c nude mice and euthymic BALB/c mice were infected with Rickettsia akari by the intraperitoneal route. The rickettsialpox infection was terminated in euthymic mice with only two intraperitoneal injections of the antibiotic oxytetracycline, whereas prolonged treatment was necessary to terminate the infecti...

journal_title：Infection and immunity

authors： Kenyon RH,Pedersen CE Jr

更新日期：1980-05-01 00:00:00

abstract：:Helicobacter pylori secretes a pore-forming VacA toxin that has structural features and activities substantially different from those of other known bacterial toxins. VacA can assemble into multiple types of water-soluble flower-shaped oligomeric structures, and most VacA activities are dependent on its capacity to ol...

journal_title：Infection and immunity

authors： González-Rivera C,Campbell AM,Rutherford SA,Pyburn TM,Foegeding NJ,Barke TL,Spiller BW,McClain MS,Ohi MD,Lacy DB,Cover TL

更新日期：2016-08-19 00:00:00

abstract：:Protection against cholera has been correlated with the level of serum vibriocidal antibodies. The specificity of these vibriocidal antibodies was mostly to the lipopolysaccharide (LPS). We synthesized conjugates of detoxified LPS with cholera toxin (CT) and other proteins in order to elicit serum LPS antibodies with ...

journal_title：Infection and immunity

authors： Gupta RK,Szu SC,Finkelstein RA,Robbins JB

更新日期：1992-08-01 00:00:00

abstract：:Salmonellae with differences only in the O-antigenic polysaccharide of their lipopolysaccharide were previously shown to differentially activate complement via the alternative pathway, causing them to be ingested at different rates by the mouse macrophage-like cell line J774. We now show that this mechanism could expl...

journal_title：Infection and immunity

authors： Liang-Takasaki CJ,Saxén H,Mäkelä PH,Leive L

更新日期：1983-08-01 00:00:00