Induction of necrosis in human neutrophils by Shigella flexneri requires type III secretion, IpaB and IpaC invasins, and actin polymerization.

abstract：:It is well established that activating-type Fc receptors for immunoglobulin G (FcgammaR), such as FcgammaRI and FcgammaRIII, are essential for inducing inflammatory responses. On the other hand, a unique inhibitory FcgammaR, FcgammaRIIB, inhibits intracellular signaling upon engagement of immunoglobulin G-immune compl...

journal_title：Infection and immunity

authors： Henriques-Pons A,Olivieri BP,Oliveira GM,Daëron M,de Araújo-Jorge TC

更新日期：2005-08-01 00:00:00

abstract：:We examined the immunobiological responses to Histoplasma capsulatum in lungs of gamma interferon (IFN-gamma) knockout mice (GKO mice). Naive GKO mice succumbed by day 9 to intranasal challenge with 2.5 x 10(6) yeasts, whereas all wild-type (WT) mice survived for 45 days. Compared to lungs of WT mice, the lungs of acu...

journal_title：Infection and immunity

authors： Allendoerfer R,Deepe GS Jr

更新日期：1997-07-01 00:00:00

abstract：:Acquired cellular immunity to infection with Mycobacterium tuberculosis is believed to reside in the capacity of mononuclear phagocytes of immunized animals to inhibit intracellular multiplication of the parasite. However, in macrophage tissue culture systems, it has been customary to employ streptomycin in the medium...

journal_title：Infection and immunity

authors： Patterson RJ,Youmans GP

更新日期：1970-01-01 00:00:00

abstract：:After aerosol deposition of Serratia marcescens in mice, initial delayed pulmonary clearance was followed between 4 and 24 hr later by progressive elimination. ...

journal_title：Infection and immunity

authors： Southern PM,Pierce AK,Sanford JP

更新日期：1971-01-01 00:00:00

abstract：:A novel in vivo expression technology (IVET) was performed to identify Klebsiella pneumoniae CG43 genes that are specifically expressed during infection of BALB/c mice. The IVET employed a UDP glucose pyrophosphorylase (galU)-deficient mutant of K. pneumoniae which is incapable of utilizing galactose and synthesizing ...

journal_title：Infection and immunity

authors： Lai YC,Peng HL,Chang HY

更新日期：2001-11-01 00:00:00

abstract：:The Pseudomonas aeruginosa quorum-sensing systems, las and rhl, control the production of numerous virulence factors. In this study, we have used the burned-mouse model to examine the contribution of quorum-sensing systems to the pathogenesis of P. aeruginosa infections in burn wounds. Different quorum-sensing mutants...

journal_title：Infection and immunity

authors： Rumbaugh KP,Griswold JA,Iglewski BH,Hamood AN

更新日期：1999-11-01 00:00:00

abstract：:Infections caused by organisms of the Mycobacterium avium complex occur in approximately 50 to 60% of patients with AIDS. M. avium is an intracellular pathogen that survives and multiplies within mononuclear phagocytes. In this study, we investigated the uptake of M. avium grown within macrophages (intracellular growt...

journal_title：Infection and immunity

authors： Bermudez LE,Parker A,Goodman JR

更新日期：1997-05-01 00:00:00

abstract：:Cigarette smoke exposure increases the risk of pulmonary and invasive infections caused by Streptococcus pneumoniae, the most commonly isolated organism from patients with community-acquired pneumonia. Despite this association, the mechanisms by which cigarette smoke exposure diminishes host defense against S. pneumon...

journal_title：Infection and immunity

authors： Phipps JC,Aronoff DM,Curtis JL,Goel D,O'Brien E,Mancuso P

更新日期：2010-03-01 00:00:00

abstract：:Incubation of INT407 cells with various clinical isolates of Campylobacter jejuni resulted in secretion of interleukin-8 (IL-8) at levels ranging from 96 to 554 pg/ml at 24 h. The strains which produced the highest levels of IL-8 secretion were 81-176 and BT44. Induction of IL-8 secretion required live cells of 81-176...

journal_title：Infection and immunity

authors： Hickey TE,Baqar S,Bourgeois AL,Ewing CP,Guerry P

更新日期：1999-01-01 00:00:00

abstract：:Pertussis is a severe respiratory disease caused by Bordetella pertussis The classic symptoms of pertussis include paroxysmal coughing with an inspiratory whoop, posttussive vomiting, cyanosis, and persistent coryzal symptoms. Infants under 2 months of age experience more severe disease, with most deaths occurring in ...

journal_title：Infection and immunity

authors： Zimmerman LI,Papin JF,Warfel J,Wolf RF,Kosanke SD,Merkel TJ

更新日期：2018-10-25 00:00:00

abstract：:With a purified beta-propiolactone-inactivated rabies virus, a significant increase in footpad swelling was elicited in normal or in BCG-pretreated mice after immunization with varying doses of rabies vaccine. These footpad reactions were shown to peak at 24 h and to be associated with an infiltration of newly formed ...

journal_title：Infection and immunity

authors： Lagrange PH,Tsiang H,Hurtrel B,Ravisse P

更新日期：1978-09-01 00:00:00

abstract：:Apical membrane antigen 1 (AMA-1) is an invasion-related Plasmodium antigen that is expressed during both intracellular and extracellular asexual stages of the parasite's life cycle, making it an ideal target for induction of humoral and cellular immune responses that can protect against malaria. We show here that whe...

journal_title：Infection and immunity

authors： Bouillet LÉ,Dias MO,Dorigo NA,Moura AD,Russell B,Nosten F,Renia L,Braga EM,Gazzinelli RT,Rodrigues MM,Soares IS,Bruna-Romero O

更新日期：2011-09-01 00:00:00

abstract：:The outer membrane protein OmpU of Vibrio cholerae O1 strain 86B3 was characterized with reference to colonization of the intestine by the organism. The purified OmpU exhibited a pI of 3.6. Upon sodium dodecyl sulfate-polyacrylamide gel electrophoresis, it migrated to 38, 32, and 110 kDa when the sample was heated at ...

journal_title：Infection and immunity

authors： Nakasone N,Iwanaga M

更新日期：1998-10-01 00:00:00

abstract：:In vitro experimentation indicates that periodontitis-associated bacteria contain potent polyclonal B-cell activators (PBA). We reasoned that if PBA were operative in vivo, plasma cells specific for nonoral antigens should be present in the inflamed gingival tissues, which are characterized by a plasma cell infiltrate...

journal_title：Infection and immunity

authors： Mallison SM 3rd,Szakal AK,Ranney RR,Tew JG

更新日期：1988-04-01 00:00:00

abstract：:Broth culture supernatants from Tox+ Helicobacter pylori strains induce vacuolation of HeLa cells in vitro and contain VacA in concentrations that are higher than those found in supernatants from Tox- H. pylori strains. To investigate the basis for this phenomenon, we analyzed the transcription of the vacuolating cyto...

journal_title：Infection and immunity

authors： Forsyth MH,Atherton JC,Blaser MJ,Cover TL

更新日期：1998-07-01 00:00:00

abstract：:Disruption of neutrophils causes the release of a cytoplasmic protein which can inhibit the growth of Candida albicans without killing the organisms. The present study was undertaken with a combined system in which candidacidal and candidastatic activities of human neutrophils could be compared. In this system it was ...

journal_title：Infection and immunity

authors： Sohnle PG,Collins-Lech C

更新日期：1990-08-01 00:00:00

abstract：:Studies with animal models have demonstrated that viral respiratory tract infections suppress bacterial clearance processes in the lung and that this alteration in host defenses appears to explain the excessive mortality from bacterial pneumonia during influenza epidemics. However, since the pathogenesis of postinflue...

journal_title：Infection and immunity

authors： Nugent KM,Pesanti EL

更新日期：1983-12-01 00:00:00

abstract：:It was shown in this work that the infectivity of metacyclic forms of Trypanosoma cruzi was affected upon interaction with the monoclonal antibody (10D8), which reacts with a carbohydrate epitope of the 35- and 50-kilodalton (kDa) surface glycoconjugates. The invasion of Vero cells by metacyclic forms of strains Tulah...

journal_title：Infection and immunity

authors： Yoshida N,Mortara RA,Araguth MF,Gonzalez JC,Russo M

更新日期：1989-06-01 00:00:00

abstract：:We purified three proline-rich antimicrobial peptides from elastase-treated extracts of sheep and goat leukocytes and subjected two of them, OaBac5alpha and ChBac5, to detailed analysis. OaBac5alpha and ChBac5 were homologous to each other and to bovine Bac5. Both exhibited potent, broad-spectrum antimicrobial activit...

journal_title：Infection and immunity

authors： Shamova O,Brogden KA,Zhao C,Nguyen T,Kokryakov VN,Lehrer RI

更新日期：1999-08-01 00:00:00

abstract：:The effector mechanism, which operates against challenge parasites in the lungs of C57BL/6 mice vaccinated once with irradiated cercariae of Schistosoma mansoni, is mediated by CD4+ T helper lymphocytes. However, adoptive transfer of immunity from vaccinated donors to naive recipients by using sensitized T cells has n...

journal_title：Infection and immunity

authors： Coulson PS,Wilson RA

更新日期：1997-01-01 00:00:00

abstract：:The protozoan parasite Cryptosporidium parvum is a significant cause of diarrheal disease worldwide. Attachment to and invasion of host intestinal epithelial cells by C. parvum sporozoites are crucial steps in the pathogenesis of cryptosporidiosis. The molecular basis of these initial interactions is unknown. In order...

journal_title：Infection and immunity

authors： Cevallos AM,Bhat N,Verdon R,Hamer DH,Stein B,Tzipori S,Pereira ME,Keusch GT,Ward HD

更新日期：2000-09-01 00:00:00

abstract：:Chlamydia trachomatis serovar L2 is an obligate intracellular bacterium which is internalized in target epithelial cells by endocytosis and resides within a membrane-bound vesicle. Over the next several hours following entry, individual serovar L2-containing vesicles fuse with one another to form a single membrane-bou...

journal_title：Infection and immunity

authors： Schramm N,Bagnell CR,Wyrick PB

更新日期：1996-04-01 00:00:00

abstract：:Investigating the innate immune response mediators released in milk has manifold implications, spanning from elucidation of the role played by mammary epithelial cells (MECs) in fighting microbial infections to the discovery of novel diagnostic markers for monitoring udder health in dairy animals. Here, we investigate...

journal_title：Infection and immunity

authors： Addis MF,Pisanu S,Marogna G,Cubeddu T,Pagnozzi D,Cacciotto C,Campesi F,Schianchi G,Rocca S,Uzzau S

更新日期：2013-09-01 00:00:00

abstract：:The Salmonella dublin virulence plasmid mediates systemic infection in mice and cattle. Here, we analyze the interaction between wild-type and plasmid-cured Salmonella strains with phagocytes in vitro and in vivo. The intracellular recovery of S. dublin from murine peritoneal and bovine alveolar macrophages cultured i...

journal_title：Infection and immunity

authors： Guilloteau LA,Wallis TS,Gautier AV,MacIntyre S,Platt DJ,Lax AJ

更新日期：1996-08-01 00:00:00

abstract：:The Syrian golden hamster (Mesocricetus auratus) is uniquely susceptible to a variety of intracellular pathogens and is an excellent model for a number of human infectious diseases. The molecular basis for this high level of susceptibility is unknown, and immunological studies related to this model have been limited b...

journal_title：Infection and immunity

authors： Melby PC,Tryon VV,Chandrasekar B,Freeman GL

更新日期：1998-05-01 00:00:00

abstract：:Tuberculosis (TB) is a leading cause worldwide of human mortality attributable to a single infectious agent. Recent studies targeting candidate genes and "case-control" association have revealed numerous polymorphisms implicated in host susceptibility to TB. Here, we review current progress in the understanding of cau...

journal_title：Infection and immunity

authors： Azad AK,Sadee W,Schlesinger LS

更新日期：2012-10-01 00:00:00

abstract：:Antigenic competition between bovine gamma globulin (BGG) and endotoxin from a smooth strain (S-ET) and a rough (R-ET) heptoseless mutant strain of Salmonella minnesota was studied in mice. Both endotoxins acted as adjuvants for enhancing the antibody response to BGG. However, other work showed that the R-ET had minim...

journal_title：Infection and immunity

authors： Leong DL,Rudbach JA

更新日期：1971-02-01 00:00:00

abstract：:The possibility that soluble products of Schistosoma mansoni eggs might participate in the pathogenesis of hepatic fibrosis in schistosomiasis was investigated. Both crude saline extracts of eggs (soluble egg antigen [SEA]) and a partially purified SEA fraction contained activity which stimulated guinea pig and human ...

journal_title：Infection and immunity

authors： Wyler DJ,Tracy JW

更新日期：1982-10-01 00:00:00

abstract：:The effects of infection with Rowson-Parr virus (RPV), an associated virus present in Friend virus (FV) preparations, on the splenic plaque-forming cell response to sheep red cells in adult mice and on the plaque-forming cell response of peritoneal cells in vitro have been investigated. The results support the hypothe...

journal_title：Infection and immunity

authors： Bendinelli M,Nardini L

更新日期：1973-02-01 00:00:00

abstract：:C4BP (C4b-binding protein) is a high-molecular-weight plasma protein that inhibits the classical pathway of complement activation. Recent experiments have demonstrated that C4BP binds to many strains of the gram-positive bacterium Streptococcus pyogenes, a major respiratory tract pathogen. Binding to S. pyogenes was s...

journal_title：Infection and immunity

authors： Berggård K,Johnsson E,Mooi FR,Lindahl G

更新日期：1997-09-01 00:00:00