Characterization and immunogenicity of the CagF protein of the cag pathogenicity island of Helicobacter pylori.

Abstract:

:Helicobacter pylori infection causes severe gastroduodenal diseases in humans. Its virulence is strongly increased by the presence of the cag pathogenicity island (cag PAI). It has been shown that CagA, a major antigen in humans, is translocated to the host cell via a secretion system encoded by the cag PAI. The roles of many of the proteins encoded within the cag PAI are not known. Here we report on the cloning and expression of CagF, one of those proteins. We show that CagF is associated to the outer membrane of H. pylori G27 and that the protein is always expressed with electrophoretic mobility variations among the 20 strains tested here. We have also found that natural infection with H. pylori is able to induce antibodies against CagF.

journal_name

Infect Immun

journal_title

Infection and immunity

authors

Seydel A,Tasca E,Berti D,Rappuoli R,Del Giudice G,Montecucco C

doi

10.1128/iai.70.11.6468-6470.2002

keywords:

subject

Has Abstract

pub_date

2002-11-01 00:00:00

pages

6468-70

issue

11

eissn

0019-9567

issn

1098-5522

journal_volume

70

pub_type

杂志文章
  • Experimental model of corynebacterium renale pyelonephritis produced in mice.

    abstract::Corynebacterium renale type I (strain 115), 1.7 X 10(7) to 4.5 X 10(7) organisms, introduced intravenously into mice disappeared from the blood less than 24 h after inoculation and did not produce pyelonephritis. The same strain, 1 X 10(7) to 5 X 10(7) organisms, inoculated into the urinary bladder of mice was not rec...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.16.1.263-267.1977

    authors: Shimono E,Yanagawa R

    更新日期:1977-04-01 00:00:00

  • Potentiality of interleukin-18 as a useful reagent for treatment and prevention of Leishmania major infection.

    abstract::Interleukin-18 (IL-18) is a proinflammatory cytokine that plays an important role in natural killer cell activation and the T helper 1 (Th1) cell response, particularly in collaboration with IL-12. Since Th1 cells play a pivotal role in the host defense against infection with intracellular microbes, such as Leishmania...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.68.5.2449-2456.2000

    authors: Ohkusu K,Yoshimoto T,Takeda K,Ogura T,Kashiwamura S,Iwakura Y,Akira S,Okamura H,Nakanishi K

    更新日期:2000-05-01 00:00:00

  • Interleukin 12 is produced in vivo during endotoxemia and stimulates synthesis of gamma interferon.

    abstract::Gamma interferon (IFN-gamma) is produced in response to circulating lipopolysaccharide (LPS) and contributes to the lethality of endotoxic shock. To address the cellular source of IFN-gamma production in vivo, T cells and B cells were magnetically purified from C57BL/6 mouse spleens 5 h following endotoxin injection. ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.62.10.4244-4249.1994

    authors: Heinzel FP,Rerko RM,Ling P,Hakimi J,Schoenhaut DS

    更新日期:1994-10-01 00:00:00

  • Tetraspanin CD81 is required for Listeria monocytogenes invasion.

    abstract::Listeria monocytogenes is an intracellular bacterial pathogen that invades epithelial cells by subverting two cellular receptors, E-cadherin and Met. We recently identified type II phosphatidylinositol 4-kinases alpha and beta (PI4KIIalpha and PI4KIIbeta) as being required for bacterial entry downstream of Met. In thi...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00661-09

    authors: Tham TN,Gouin E,Rubinstein E,Boucheix C,Cossart P,Pizarro-Cerda J

    更新日期:2010-01-01 00:00:00

  • Role of capsule and suilysin in mucosal infection of complement-deficient mice with Streptococcus suis.

    abstract::Virulent Streptococcus suis serotype 2 strains are invasive extracellular bacteria causing septicemia and meningitis in piglets and humans. One objective of this study was to elucidate the function of complement in innate immune defense against S. suis. Experimental infection of wild-type (WT) and C3(-/-) mice demonst...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00080-14

    authors: Seitz M,Beineke A,Singpiel A,Willenborg J,Dutow P,Goethe R,Valentin-Weigand P,Klos A,Baums CG

    更新日期:2014-06-01 00:00:00

  • A 43-kilodalton pneumococcal surface protein, PspA: isolation, protective abilities, and structural analysis of the amino-terminal sequence.

    abstract::PspA is an antigenically variable surface protein of Streptococcus pneumoniae that appears to be essential for full pneumococcal virulence. In addition, monoclonal antibodies to PspA protect mice against infection with specific strains of pneumococci virulent for mice. In this study, we have isolated the 43-kDa N-term...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.59.4.1285-1289.1991

    authors: Talkington DF,Crimmins DL,Voellinger DC,Yother J,Briles DE

    更新日期:1991-04-01 00:00:00

  • Adenoviral delivery of interleukin-10 fails to attenuate experimental Lyme disease.

    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

    pub_type: 杂志文章

    doi:10.1128/IAI.00808-08

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

    更新日期:2008-12-01 00:00:00

  • Secretion of type II phospholipase A2 and cryptdin by rat small intestinal Paneth cells.

    abstract::We examined the secretion of antimicrobial proteins and peptides into surgically isolated and continuously perfused segments of rat small intestine. Up to nine discrete antimicrobial molecules appeared in the intestinal perfusates following intravenous administration of bethanechol, a cholinergic agonist, or intralume...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.64.12.5161-5165.1996

    authors: Qu XD,Lloyd KC,Walsh JH,Lehrer RI

    更新日期:1996-12-01 00:00:00

  • Natural and immune antibodies for Vibrio fetus in serum and secretions of cattle.

    abstract::Naturally occurring antibodies for Vibrio fetus with whole-cell and O antigen specificities were detected in sera of mature cattle by means of the agglutination and indirect immunofluorescence reactions. O antibodies occurred in each of 21 sera examined, and whole-cell antibodies, in lower concentrations, occurred in ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.5.5.728-733.1972

    authors: Duncan JR,Wilkie BN,Winter AJ

    更新日期:1972-05-01 00:00:00

  • Novel adjuvant action of lipopolysaccharides that possess mannose homopolysaccharides as O-specific polysaccharides on immune responses to nonimmunogenic autoantigens in mice.

    abstract::The adjuvant action of various lipopolysaccharides on immune responses to syngeneic tissue extract in mice was examined. Only lipopolysaccharides possessing the linear mannose homopolysaccharides as O-specific polysaccharides exhibited definite adjuvant action on immune responses to the autoantigens. The intensity of ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.60.11.4953-4956.1992

    authors: Yokochi T,Fukada M,Kawai M,Zhang YH,Jiang GZ,Takahashi K

    更新日期:1992-11-01 00:00:00

  • Production of immunoglobulin M (IgM) autoantibodies to IgG in rabbits inoculated with Mycoplasma salivarium cells grown in medium supplemented with rabbit serum.

    abstract::Mycoplasma salivarium cells propagated in PPLO broth (Difco Laboratories, Detroit, Mich.) supplemented with rabbit serum (10% [vol/vol]) and harvested by centrifugation were shown to contain rabbit immunoglobulin G (IgG) (approximately 4 to 10% of total cell proteins) and to produce IgM autoantibodies to IgG when inoc...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.55.1.263-265.1987

    authors: Watanabe T,Shibata K,Hasegawa K

    更新日期:1987-01-01 00:00:00

  • Novel role for albumin in innate immunity: serum albumin inhibits the growth of Blastomyces dermatitidis yeast form in vitro.

    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

    pub_type: 杂志文章

    doi:10.1128/iai.71.11.6648-6652.2003

    authors: Giles S,Czuprynski C

    更新日期:2003-11-01 00:00:00

  • Absence of a prominent Th2 cytokine response in human tuberculosis.

    abstract::Depressed Th1 responses are a prominent feature of human tuberculosis, but an enhanced Th2 response has not been detected in peripheral blood T cells stimulated in vitro with Mycobacterium tuberculosis. In disease due to Mycobacterium leprae, Th2 cells predominate in tissue lesions of patients with extensive disease b...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.64.4.1351-1356.1996

    authors: Lin Y,Zhang M,Hofman FM,Gong J,Barnes PF

    更新日期:1996-04-01 00:00:00

  • Interleukin-6 (IL-6) and IL-8 are induced in human oral epithelial cells in response to exposure to periodontopathic Eikenella corrodens.

    abstract::Periodontitis is the inflammatory response in periodontal tissues elicited by bacterial colonization in periodontal pockets. In this response, pocket epithelial cells are the first cells to come into contact with bacteria. To elucidate this mechanism, we determined the adherence of the periodontopathic bacterium Eiken...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.67.1.384-394.1999

    authors: Yumoto H,Nakae H,Fujinaka K,Ebisu S,Matsuo T

    更新日期:1999-01-01 00:00:00

  • Increased mortality and dysregulated cytokine production in tumor necrosis factor receptor 1-deficient mice following systemic Klebsiella pneumoniae infection.

    abstract::A significant clinical complication of pulmonary infections with Klebsiella pneumoniae is peripheral blood dissemination, resulting in a systemic infection concurrent with the localized pulmonary infection. In this context, little is known about the role of tumor necrosis factor receptor 1 (TNFR1)-mediated innate immu...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.71.9.4891-4900.2003

    authors: Moore TA,Perry ML,Getsoian AG,Monteleon CL,Cogen AL,Standiford TJ

    更新日期:2003-09-01 00:00:00

  • Identification of a Fusobacterium nucleatum PK1594 galactose-binding adhesin which mediates coaggregation with periopathogenic bacteria and hemagglutination.

    abstract::Attachment of Fusobacterium nucleatum to various oral surfaces is mediated by several adhesins anchored on its outer surface. Monoclonal antibodies (MAbs) were prepared and used to identify the putative galactose-binding adhesin of F. nucleatum PK1594. Four unique MAbs, 8G7, 26B9, 28G11, and 29D4, were isolated on the...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.65.12.5231-5237.1997

    authors: Shaniztki B,Hurwitz D,Smorodinsky N,Ganeshkumar N,Weiss EI

    更新日期:1997-12-01 00:00:00

  • The twin arginine translocation system is essential for virulence of Yersinia pseudotuberculosis.

    abstract::Yersinia species pathogenic to humans have been extensively characterized with respect to type III secretion and its essential role in virulence. This study concerns the twin arginine translocation (Tat) pathway utilized by gram-negative bacteria to secrete folded proteins across the bacterial inner membrane into the ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.74.3.1768-1776.2006

    authors: Lavander M,Ericsson SK,Bröms JE,Forsberg A

    更新日期:2006-03-01 00:00:00

  • Immunoprotective activity of ribosomes from Haemophilus influenzae.

    abstract::Immunization with ribosomal preparations from Haemophilus influenzae type b elicited protective immunity in mice. Ribosomes from disrupted cells where isolated by differential centrifugation using sodium dodecyl sulfate. The washed ribosomes contained 25% protein and 75% ribonucleic acid and sedimented as a single pea...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.15.2.453-460.1977

    authors: Lynn M,Tewari RP,Solotorovsky M

    更新日期:1977-02-01 00:00:00

  • Specific absence of type 2 fimbriae on a coaggregation-defective mutant of Actinomyces viscosus T14V.

    abstract::The coaggregation-defective (COG-) mutant Actinomyces viscosus T14V(PK455), which is unable to participate in lactose-sensitive adherence, and its COG+ parent were compared to structurally define the mutational loss of cell-associated lectin activity. Immunoelectrophoretic comparisons of crude extracts or isolated fim...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.40.2.759-765.1983

    authors: Cisar JO,Curl SH,Kolenbrander PE,Vatter AE

    更新日期:1983-05-01 00:00:00

  • Incremental Contributions of FbaA and Other Impetigo-Associated Surface Proteins to Fitness and Virulence of a Classical Group A Streptococcal Skin Strain.

    abstract::Group A streptococci (GAS) are highly prevalent human pathogens whose primary ecological niche is the superficial epithelial layers of the throat and/or skin. Many GAS strains with a strong tendency to cause pharyngitis are distinct from strains that tend to cause impetigo; thus, genetic differences between them may c...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00374-17

    authors: Rouchon CN,Ly AT,Noto JP,Luo F,Lizano S,Bessen DE

    更新日期:2017-10-18 00:00:00

  • A family of phase- and size-variant membrane surface lipoprotein antigens (Vsps) of Mycoplasma bovis.

    abstract::A set of strain- and size-variant highly immunogenic membrane surface protein antigens of Mycoplasma bovis, which has been identified by a monoclonal antibody, is shown in this report to make up a family of antigenically and structurally related lipid-modified proteins, designated Vsps (variable surface proteins). By ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.62.11.5075-5084.1994

    authors: Behrens A,Heller M,Kirchhoff H,Yogev D,Rosengarten R

    更新日期:1994-11-01 00:00:00

  • Protection of mice against experimental cryptococcosis by anti-Cryptococcus neoformans monoclonal antibody.

    abstract::Humoral immunity does not play a prominent role during experimental cryptococcosis. However, previous studies have shown that immunoglobulin G (IgG) anti-Cryptococcus neoformans antibodies can mediate cell-dependent yeast killing in vitro. Therefore, the protective effect of a previously described monoclonal IgG1 anti...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.55.3.749-752.1987

    authors: Dromer F,Charreire J,Contrepois A,Carbon C,Yeni P

    更新日期:1987-03-01 00:00:00

  • Protection against Mycobacterium tuberculosis infection by CD8+ T cells requires the production of gamma interferon.

    abstract::The role of CD8 T cells in controlling Mycobacterium tuberculosis infections in mice was confirmed by comparing the levels of growth of the organism in control, major histocompatibility complex class II knockout, and athymic mice and by transferring T-cell populations into athymic mice. By using donor mice which were ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.66.2.830-834.1998

    authors: Tascon RE,Stavropoulos E,Lukacs KV,Colston MJ

    更新日期:1998-02-01 00:00:00

  • Schistosome egg antigens elicit a proinflammatory response by trophoblast cells of the human placenta.

    abstract::Schistosomiasis affects nearly 40 million women of reproductive age. Many of these women are infected while pregnant and lactating. Several studies have demonstrated transplacental trafficking of schistosome antigens; however, little is known regarding how these antigens affect the developing fetus and placenta. To ev...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.01149-12

    authors: McDonald EA,Kurtis JD,Acosta L,Gundogan F,Sharma S,Pond-Tor S,Wu HW,Friedman JF

    更新日期:2013-03-01 00:00:00

  • Identification of a new repetitive element in Staphylococcus aureus.

    abstract::The Staphylococcus aureus repeat (STAR) element is a sequence identified in two intergenic regions in S. aureus. The element is found in 13 to 21 copies in individual S. aureus strains, and elements in the homologous intergenic location are variable in length. The element sequence consists of several small and unusual...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.68.4.2344-2348.2000

    authors: Cramton SE,Schnell NF,Götz F,Brückner R

    更新日期:2000-04-01 00:00:00

  • Plasmodium falciparum Clag9-Associated PfRhopH Complex Is Involved in Merozoite Binding to Human Erythrocytes.

    abstract::Cytoadherence-linked asexual gene 9 (Clag9), a conserved Plasmodium protein expressed during the asexual blood stages, is involved in the cytoadherence of infected red blood cells (RBCs) to the endothelial lining of blood vessels. Here, we show that Plasmodium falciparum Clag9 (PfClag9) is a component of the PfClag9-R...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00504-19

    authors: Chourasia BK,Deshmukh A,Kaur I,Paul G,Panda A,Rathore S,Singh SK,Theisen M,Mohmmed A,Malhotra P

    更新日期:2020-01-22 00:00:00

  • Characterization of binding of Candida albicans to small intestinal mucin and its role in adherence to mucosal epithelial cells.

    abstract::In order to approximate and adhere to mucosal epithelial cells, Candida must traverse the overlying mucus layer. Interactions of Candida species with mucin and human buccal epithelial cells (BECs) were thus investigated in vitro. Binding of the Candida species to purified small intestinal mucin showed a close correlat...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.68.6.3172-3179.2000

    authors: de Repentigny L,Aumont F,Bernard K,Belhumeur P

    更新日期:2000-06-01 00:00:00

  • Effect of exogenous nucleotides on Ca2+ dependence and V antigen synthesis in Yersinia pestis.

    abstract::Cells of Yersinia pestis strain EV76 are known to cease growth after a shift from 26 to 37 degrees C in neutral Ca2+-deficient medium; this effect is potentiated by Mg2+. With 2.5 mM Mg2+ and no added Ca2+, restriction was relaxed at elevated pH at which maximum cell yields occurred in the presence of 20 mM exogenous ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.38.3.953-959.1982

    authors: Zahorchak RJ,Brubaker RR

    更新日期:1982-12-01 00:00:00

  • Characterization of an iroBCDEN gene cluster on a transmissible plasmid of uropathogenic Escherichia coli: evidence for horizontal transfer of a chromosomal virulence factor.

    abstract::The chromosomal iroBCDEN gene cluster first described for Salmonella enterica is involved in the uptake of catecholate-type siderophore compounds. An orthologous gene cluster has recently been detected in Escherichia coli strains which cause extraintestinal disease. This E. coli iroBCDEN gene cluster has an impact on ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.71.6.3285-3293.2003

    authors: Sorsa LJ,Dufke S,Heesemann J,Schubert S

    更新日期:2003-06-01 00:00:00

  • Phagocytosis of virulent Porphyromonas gingivalis by human polymorphonuclear leukocytes requires specific immunoglobulin G.

    abstract::No studies to date clearly define the interactions between Porphyromonas gingivalis and human peripheral blood polymorphonuclear leukocytes (PMN), nor has a protective role for antibody to P. gingivalis been defined. Using a fluorochrome phagocytosis microassay, we investigated PMN phagocytosis and killing of P. gingi...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.59.6.2097-2104.1991

    authors: Cutler CW,Kalmar JR,Arnold RR

    更新日期:1991-06-01 00:00:00