Characterization of candidate live oral Salmonella typhi vaccine strains harboring defined mutations in aroA, aroC, and htrA.

abstract：:In experimentally infected human volunteers, the cutaneous immune response to Haemophilus ducreyi is orchestrated by serum, polymorphonuclear leukocytes, macrophages, T cells, and myeloid dendritic cells (DC). This response either leads to spontaneous resolution of infection or progresses to pustule formation, which i...

journal_title：Infection and immunity

authors： Humphreys TL,Li L,Li X,Janowicz DM,Fortney KR,Zhao Q,Li W,McClintick J,Katz BP,Wilkes DS,Edenberg HJ,Spinola SM

更新日期：2007-12-01 00:00:00

abstract：:The opportunistic pathogen Pseudomonas aeruginosa is a major cause of sepsis in severely burned patients. If it is not eradicated from the wound, it translocates to the bloodstream, causing sepsis, multiorgan failure, and death. We recently described the P. aeruginosa heparinase-encoding gene, hepP, whose expression w...

journal_title：Infection and immunity

authors： Dzvova N,Colmer-Hamood JA,Griswold JA,Hamood AN

更新日期：2017-12-19 00:00:00

abstract：:Incubation of large granular lymphocytes (LGL) with glutaraldehyde-fixed bacteria stimulated in the supernatant the production of interferon (IFN), which proved to be mainly IFN-gamma. Even though IFN-gamma was produced upon exposure of LGL to bacteria, anti-IFN-gamma antibodies failed to interfere with induction of c...

journal_title：Infection and immunity

authors： Tarkkanen J,Saksela E

更新日期：1991-08-01 00:00:00

abstract：:Toxigenic Vibrio cholerae strains are lysogens of CTXPhi, a filamentous phage which encodes cholera toxin. The receptor for CTXPhi for invading V. cholerae cells is the toxin-coregulated pilus (TCP), the genes for which reside in a larger genetic element, the TCP pathogenicity island. We analyzed 146 CTX-negative stra...

journal_title：Infection and immunity

authors： Faruque SM,Asadulghani,Saha MN,Alim AR,Albert MJ,Islam KM,Mekalanos JJ

更新日期：1998-12-01 00:00:00

abstract：:Time-lapse cinematography was used to study the growth cycle of Chlamydia trachomatis in primary cell cultures of human amnion. Twelve preterm and twelve term placentas were obtained within 8 h of delivery, and epithelial cells were dissociated from the amniotic membranes by trypsinization and grown in Rose chambers. ...

journal_title：Infection and immunity

authors： Neeper ID,Patton DL,Kuo CC

更新日期：1990-07-01 00:00:00

abstract：:Pneumocystis pneumonia (PcP) is a life-threatening infection that affects immunocompromised individuals. Nearly half of all PcP cases occur in those prescribed effective chemoprophylaxis, suggesting that additional preventive methods are needed. To this end, we have identified a unique mouse Pneumocystis surface prote...

journal_title：Infection and immunity

authors： Tesini BL,Wright TW,Malone JE,Haidaris CG,Harber M,Sant AJ,Nayak JL,Gigliotti F

更新日期：2017-03-23 00:00:00

abstract：:Hookworm glutathione S-transferases (GSTs) are critical for parasite blood feeding and survival and represent potential targets for vaccination. Three cDNAs, each encoding a full-length GST protein from the human hookworm Necator americanus (and designated Na-GST-1, Na-GST-2, and Na-GST-3, respectively) were isolated ...

journal_title：Infection and immunity

authors： Zhan B,Perally S,Brophy PM,Xue J,Goud G,Liu S,Deumic V,de Oliveira LM,Bethony J,Bottazzi ME,Jiang D,Gillespie P,Xiao SH,Gupta R,Loukas A,Ranjit N,Lustigman S,Oksov Y,Hotez P

更新日期：2010-04-01 00:00:00

abstract：:Borrelia burgdorferi sensu stricto is the major causative agent of Lyme disease in the United States, while B. garinii and B. afzelii are more prevalent in Europe. The highly complex genome of B. burgdorferi is comprised of a linear chromosome and a large number of variably sized linear and circular plasmids. Many pla...

journal_title：Infection and immunity

authors： Chan K,Casjens S,Parveen N

更新日期：2012-04-01 00:00:00

abstract：:Antisera were raised in rabbits with acid-treated Re mutant bacteria from Salmonella minnesota and Escherichia coli and tested in a passive hemolysis assay with di- and monophosphorylated free lipid A of E. coli (LipA-Ac and LipA-HCl, respectively) coated onto sheep erythrocytes. Depending on the acid used to prepare ...

journal_title：Infection and immunity

authors： Brade L,Brade H

更新日期：1985-06-01 00:00:00

abstract：:Borrelia burgdorferi, the agent of Lyme disease, is transmitted by ticks. During transmission from the tick to the host, spirochetes are delivered with tick saliva, which contains the salivary protein Salp15. Salp15 has been shown to protect spirochetes against B. burgdorferi-specific antibodies. We now show that Salp...

journal_title：Infection and immunity

authors： Schuijt TJ,Hovius JW,van Burgel ND,Ramamoorthi N,Fikrig E,van Dam AP

更新日期：2008-07-01 00:00:00

abstract：:The nitrate dissimilation pathway is important for anaerobic growth in Pseudomonas aeruginosa. In addition, this pathway contributes to P. aeruginosa virulence by using the nematode Caenorhabditis elegans as a model host, as well as biofilm formation and motility. We used a set of nitrate dissimilation pathway mutants...

journal_title：Infection and immunity

authors： Van Alst NE,Wellington M,Clark VL,Haidaris CG,Iglewski BH

更新日期：2009-10-01 00:00:00

abstract：:Bovine septicemic Escherichia coli 31A agglutinates bovine, rabbit, and human erythrocytes and adheres in vitro to the brush border of bovine or ovine intestinal epithelial cells and to the human colon carcinoma Caco-2 cell line. The adhesion and hemagglutination of E. coli 31A are mediated by a chromosome-encoded fim...

journal_title：Infection and immunity

authors： Bertin Y,Girardeau JP,Darfeuille-Michaud A,Contrepois M

更新日期：1996-01-01 00:00:00

abstract：:The data presented indicate that in experimental Pseudomonas aeruginosa infection of mice, protease enhances the virulence of the organism. Anesthetized CBA/Lü mice were subjected to a 15-s flame burn and infected with a wild-type protease-producing strain and two of its protease-deficient mutants. The average bacteri...

journal_title：Infection and immunity

authors： Pavlovskis OR,Wretlind B

更新日期：1979-04-01 00:00:00

abstract：:The type III capsular polysaccharide of group B streptococci (GBS) consists of a linear backbone with short side chains ending in residues of N-acetylneuraminic acid, or sialic acid. The presence of sialic acid on the surface of the organism inhibits activation of the alternative pathway of complement and is thought t...

journal_title：Infection and immunity

authors： Wessels MR,Haft RF,Heggen LM,Rubens CE

更新日期：1992-02-01 00:00:00

abstract：:Bordetella bronchiseptica secreted a hydroxamate siderophore when grown in Fe-depleted medium. A Tn5lac insertion mutant of B. bronchiseptica, DBB22, did not produce this hydroxamate siderophore and was incapable of using lactoferrin as an Fe source. Our data suggest that B. bronchiseptica uses a siderophore for remov...

journal_title：Infection and immunity

authors： Foster LA,Dyer DW

更新日期：1993-06-01 00:00:00

abstract：:Botulinum C2 toxin has histopathological activity in the mouse intestine and induces fluid accumulation in intestinal loops. The toxin caused degenerative and necrotic changes in the intestinal mucosa: intracellular vacuolization of epithelial cells, desquamation and necrosis of the villous epithelium, intercellular e...

journal_title：Infection and immunity

authors： Ohishi I,Odagiri Y

更新日期：1984-01-01 00:00:00

abstract：:Peru-15 is a live attenuated oral vaccine derived from a Vibrio cholerae O1 El Tor Inaba strain by a series of deletions and modifications, including deletion of the entire CT genetic element. Peru-15 is also a stable, motility-defective strain and is unable to recombine with homologous DNA. We wished to determine whe...

journal_title：Infection and immunity

authors： Cohen MB,Giannella RA,Bean J,Taylor DN,Parker S,Hoeper A,Wowk S,Hawkins J,Kochi SK,Schiff G,Killeen KP

更新日期：2002-04-01 00:00:00

abstract：:The role of cysteine proteinases in adherence of Trichomonas vaginalis NYH 286 to HeLa and human vaginal epithelial cells was evaluated. Only pretreatment of trichomonads, but not epithelial cells, with N-alpha-p-tosyl-L-lysine chloromethyl ketone (TLCK), an inhibitor of trichomonad cysteine proteinases, greatly dimin...

journal_title：Infection and immunity

authors： Arroyo R,Alderete JF

更新日期：1989-10-01 00:00:00

abstract：:Mycoplasma hyorhinis organisms were fractionated into lipid, carbohydrate, and protein fractions by chemical and physiochemical procedures. When all fractions were tested for complement fixation and inhibition of growth inhibition activity, only the protein fractions possessed activity. Thus, it appears that the major...

journal_title：Infection and immunity

authors： Barden JA,Prescott B

更新日期：1973-06-01 00:00:00

abstract：:In bacterial infections, mononuclear and polymorphonuclear phagocytes are key components of host defenses. Recent investigations have indicated that chemokines are able to recruit and activate phagocytes. In particular, interleukin-8 (IL-8) attracts polymorphonuclear leukocytes (PMNs), while monocyte chemoattractant p...

journal_title：Infection and immunity

authors： Tonetti MS,Imboden MA,Gerber L,Lang NP,Laissue J,Mueller C

更新日期：1994-09-01 00:00:00

abstract：:After intranasal inoculation, Brucella melitensis chronically infects the mononuclear phagocyte system in BALB/c mice, but it causes no apparent illness. Adaptive immunity, which can be transferred by either T cells or antibody from immune to naive animals, confers resistance to challenge infection. The role of innate...

journal_title：Infection and immunity

authors： Izadjoo MJ,Polotsky Y,Mense MG,Bhattacharjee AK,Paranavitana CM,Hadfield TL,Hoover DL

更新日期：2000-09-01 00:00:00

abstract：:We have previously described a new system for the delivery of recombinant antigens in live Salmonella vaccines as genetic fusions to the C terminus of fragment C of tetanus toxin (TetC) driven by the anaerobically inducible nirB promoter. It has been reported that preimmunization with tetanus toxoid (TT) can suppress ...

journal_title：Infection and immunity

authors： Chabalgoity JA,Villareal-Ramos B,Khan CM,Chatfield SN,de Hormaeche RD,Hormaeche CE

更新日期：1995-07-01 00:00:00

abstract：:While several diseases associated with Chlamydia psittaci infection have been reported in Phascolarctos cinereus (koala), it is still unclear whether one or more chlamydial strains are responsible. In this study, we provide evidence, obtained by restriction enzyme and gene probe analysis, that two quite distinct strai...

journal_title：Infection and immunity

authors： Girjes AA,Hugall AF,Timms P,Lavin MF

更新日期：1988-08-01 00:00:00

abstract：:We demonstrate that a mucoid, alginate-producing strain of Pseudomonas aeruginosa isolated from the lungs of a cystic fibrosis (CF) patient secretes multiple enzymes with nucleoside diphosphate kinase (Ndk), ATPase, adenylate kinase, 5'-nucleotidase, and ATP-modifying enzymatic activities. The secretion is triggered a...

journal_title：Infection and immunity

authors： Zaborina O,Misra N,Kostal J,Kamath S,Kapatral V,El-Idrissi ME,Prabhakar BS,Chakrabarty AM

更新日期：1999-10-01 00:00:00

abstract：:Previously, we isolated a high-molecular-weight immunogenic polysaccharide (designated PS) from Pseudomonas aeruginosa immunotype 1 (IT-1). The method which we used was modified to permit the isolation of a similar PS from P. aeruginosa IT-2. This antigen was composed primarily of carbohydrate, had a complex monosacch...

journal_title：Infection and immunity

authors： Pier GB,Sidberry HF,Sadoff JC

更新日期：1981-11-01 00:00:00

abstract：:The gene encoding Clostridium sordellii phospholipase C (Csp) was cloned and expressed as a histidine-tagged (His-tag) protein, and the protein was purified to compare its enzymatic and biological activities with those of Clostridium perfringens phospholipase C (Cpa) and Clostridium bifermentans phospholipase C (Cbp)....

journal_title：Infection and immunity

authors： Karasawa T,Wang X,Maegawa T,Michiwa Y,Kita H,Miwa K,Nakamura S

更新日期：2003-02-01 00:00:00

abstract：:The rationale for the present study was to determine how different species of bacteria interact with cells of the human meninges in order to gain information that would have broad relevance to understanding aspects of the innate immune response in the brain. Neisseria lactamica is an occasional cause of meningitis in ...

journal_title：Infection and immunity

authors： Fowler MI,Yin KY,Humphries HE,Heckels JE,Christodoulides M

更新日期：2006-11-01 00:00:00

abstract：:Mycoplasma gallisepticum is an avian respiratory and reproductive tract pathogen that has a significant economic impact on the poultry industry worldwide. Although membrane proteins of Mycoplasma spp. are thought to play crucial roles in host interactions, very few have had their biochemical function defined. In this ...

journal_title：Infection and immunity

authors： Yu Y,Zhang L,Chen Y,Li Y,Wang Z,Li G,Wang G,Xin J

更新日期：2019-08-21 00:00:00

abstract：:Pasteurella multocida is the causative agent of a number of diseases in animals, including fowl cholera. P. multocida strains simultaneously express two lipopolysaccharide (LPS) glycoforms (glycoforms A and B) that differ only in their inner core structure. Glycoform A contains a single 3-deoxy-d-manno-octulosonic aci...

journal_title：Infection and immunity

authors： Harper M,Cox AD,St Michael F,Ford M,Wilkie IW,Adler B,Boyce JD

更新日期：2010-09-01 00:00:00

abstract：:The protective immunity conferred by T-cell subsets against infection with Treponema pallidum subsp. pertenue was studied. We demonstrated that hamster T cells can be separated into two subsets by monoclonal antibody (MAb) GK 1.5 (anti-L3T4) and MAb 38. Eighty-five percent of hamster thymocytes were L3T4+ and 87% were...

journal_title：Infection and immunity

authors： Liu H,Alder JD,Steiner BM,Stein-Streilein J,Lim L,Schell RF

更新日期：1991-02-01 00:00:00