The Inflammatory response induced by aspartic proteases of Candida albicans is independent of proteolytic activity.

Abstract:

:The secretion of aspartic proteases (Saps) has long been recognized as a virulence-associated trait of the pathogenic yeast Candida albicans. In this study, we report that different recombinant Saps, including Sap1, Sap2, Sap3, and Sap6, have differing abilities to induce secretion of proinflammatory cytokines by human monocytes. In particular Sap1, Sap2, and Sap6 significantly induced interleukin-1β (IL-1β), tumor necrosis factor alpha (TNF-α), and IL-6 production. Sap3 was able to stimulate the secretion of IL-1β and TNF-α. All Saps tested were able to induce Ca(2+) influx in monocytes. Treatment of these Saps with pepstatin A did not have any effect on cytokine secretion, indicating that their stimulatory potential was independent from their proteolytic activity. The capacity of Saps to induce inflammatory cytokine production was also independent from protease-activated receptor (PAR) activation and from the optimal pH for individual Sap activity. The interaction of Saps with monocytes induced Akt activation and phosphorylation of IκBα, which mediates translocation of NF-κB into the nucleus. Overall, these results suggest that individual Sap proteins can induce an inflammatory response and that this phenomenon is independent from the pH of a specific host niche and from Sap enzymatic activity. The inflammatory response is partially dependent on Sap denaturation and is triggered by the Akt/NF-κB activation pathway. Our data suggest a novel, activity-independent aspect of Saps during interactions of C. albicans with the host.

journal_name

Infect Immun

journal_title

Infection and immunity

authors

Pietrella D,Rachini A,Pandey N,Schild L,Netea M,Bistoni F,Hube B,Vecchiarelli A

doi

10.1128/IAI.00789-10

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

4754-62

issue

11

eissn

0019-9567

issn

1098-5522

pii

IAI.00789-10

journal_volume

78

pub_type

杂志文章
  • Experimental Fasciola hepatica infection alters responses to tests used for diagnosis of bovine tuberculosis.

    abstract::Fasciola hepatica is a prevalent helminth parasite of livestock. Infection results in polarization of the host's immune response and generation of type 2 helper (Th2) immune responses, which are known to be inhibitory to Th1 responses. Bovine tuberculosis (BTB) is a bacterial disease of economic and zoonotic importanc...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.01445-06

    authors: Flynn RJ,Mannion C,Golden O,Hacariz O,Mulcahy G

    更新日期:2007-03-01 00:00:00

  • Corynebacterium ulcerans and Corynebacterium pseudotuberculosis responses to DNA probes derived from corynephage beta and Corynebacterium diphtheriae.

    abstract::Strains of Corynebacterium ulcerans and Corynebacterium pseudotuberculosis (Corynebacterium ovis) were examined for the production of diphtheria toxin. A majority of C. ulcerans strains (25 of 37) and 1 C. pseudotuberculosis strain (1 of 14) gave a positive Elek test for diphtheria toxin, and for all strains but 1, pr...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.45.2.511-517.1984

    authors: Groman N,Schiller J,Russell J

    更新日期:1984-08-01 00:00:00

  • Fungus-specific translation elongation factor 3 gene present in Pneumocystis carinii.

    abstract::Historically, Pneumocystis carinii pneumonia has been the most frequent cause of morbidity and mortality in patients with AIDS. Antiprotozoan drugs are effective in the treatment and prophylaxis of P. carinii pneumonia, which lends credence to the widely held view that P. carinii is a protozoan. However, recent geneti...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.60.10.4140-4145.1992

    authors: Ypma-Wong MF,Fonzi WA,Sypherd PS

    更新日期:1992-10-01 00:00:00

  • Modulation of cytosolic Ca(2+) concentration in airway epithelial cells by Pseudomonas aeruginosa.

    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

    pub_type: 杂志文章

    doi:10.1128/iai.70.11.6399-6408.2002

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

    更新日期:2002-11-01 00:00:00

  • Pilus-mediated adherence of Escherichia coli K1 to human oral epithelial cells.

    abstract::We examined the effect of host age and health status on the adherence of mannose-sensitive piliated Escherichia coli K1 to human oral epithelial cells. Mannose-sensitive piliated bacteria adhered in comparable numbers to newborn, older infant, and adult cells (125 +/- 61, 198 +/- 54, and 139 +/- 69 bacteria per cell, ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.45.1.299-301.1984

    authors: Clegg H,Guerina N,Langermann S,Kessler TW,Guerina V,Goldmann D

    更新日期:1984-07-01 00:00:00

  • Identification of two bvg-repressed surface proteins of Bordetella pertussis.

    abstract::Bordetella pertussis, the etiological agent of whooping cough, has the ability to modulate its phenotype in response to environmental conditions by using the BvgAS sensory transduction system which is encoded by the vir locus (now known as bvg). The BvgAS system is part of a large family of two-component sensory trans...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.63.10.3780-3789.1995

    authors: Stenson TH,Peppler MS

    更新日期:1995-10-01 00:00:00

  • Gonococcal color and opacity variants: virulence for chicken embryos.

    abstract::Previous studies have noted that the prevalence of certain gonococcal colony types is influenced by the physiological state of the human host. Consequently eight different gonococcal strains were passed on clear typing medium, and opaque (Op) and transparent (Tr) variants of heavily pilated (P++) bacteria were selecte...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.22.2.359-364.1978

    authors: Salit IE,Gotschlich EC

    更新日期:1978-11-01 00:00:00

  • Polymorphisms in the lcrV gene of Yersinia enterocolitica and their effect on plague protective immunity.

    abstract::Current efforts to develop plague vaccines focus on LcrV, a polypeptide that resides at the tip of type III secretion needles. LcrV-specific antibodies block Yersinia pestis type III injection of Yop effectors into host immune cells, thereby enabling phagocytes to kill the invading pathogen. Earlier work reported that...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.05637-11

    authors: Miller NC,Quenee LE,Elli D,Ciletti NA,Schneewind O

    更新日期:2012-04-01 00:00:00

  • Gonococcal opacity protein promotes bacterial entry-associated rearrangements of the epithelial cell actin cytoskeleton.

    abstract::Neisseria gonorrhoeae enters cultured human mucosal cells following binding of a distinct gonococcal opacity (Opa) outer membrane protein to cell surface proteoglycan receptors. We examined the route of internalization that is activated by Opa-expressing gonococci (strain VP1). Microscopy of infected Chang epithelial ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.64.5.1621-1630.1996

    authors: Grassmé HU,Ireland RM,van Putten JP

    更新日期:1996-05-01 00:00:00

  • Role of Vibrio cholerae neuraminidase in the function of cholera toxin.

    abstract::Vibrio cholerae neuraminidase (NANase) is hypothesized to act synergistically with cholera toxin (CT) and increase the severity of a secretory response by increasing the binding and penetration of CT to enterocytes. To test this hypothesis, the NANase gene (nanH) from V. cholerae Ogawa 395 was first cloned and sequenc...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.60.2.406-415.1992

    authors: Galen JE,Ketley JM,Fasano A,Richardson SH,Wasserman SS,Kaper JB

    更新日期:1992-02-01 00:00:00

  • Immunoglobulin A (IgA), IgA1, and IgA2 antibodies to Candida albicans in whole and parotid saliva in human immunodeficiency virus infection and AIDS.

    abstract::Human immunodeficiency virus (HIV)-infected individuals are predisposed to recurrent oral candidiasis, and, although it has been assumed that this is because of deficient mucosal immune responses, this has not been properly established. The present study aimed to compare the concentrations and secretion rates of immun...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.62.3.892-896.1994

    authors: Coogan MM,Sweet SP,Challacombe SJ

    更新日期:1994-03-01 00:00:00

  • Risk factors in the pathogenesis of invasive group A streptococcal infections: role of protective humoral immunity.

    abstract::An impressive change in the epidemiology and severity of invasive group A streptococcal infections occurred in the 1980s, and the incidence of streptococcal toxic shock syndrome cases continues to rise. The reason for the resurgence of severe invasive cases remains a mystery-has there been a change in the pathogen or ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:

    authors: Basma H,Norrby-Teglund A,Guedez Y,McGeer A,Low DE,El-Ahmedy O,Schwartz B,Kotb M

    更新日期:1999-04-01 00:00:00

  • Experimental infection with Schistosoma mansoni in CCR5-deficient mice is associated with increased disease severity, as CCR5 plays a role in controlling granulomatous inflammation.

    abstract::The plasma level of the chemokine CCL3 is elevated in patients with chronic severe schistosomiasis mansoni. We have previously shown that CCL3(-/-) mice with experimental infection showed diminished pathology and worm burden compared to those of wild-type (WT) mice. To elucidate further the role of CC chemokines durin...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00502-10

    authors: Souza AL,Souza PR,Pereira CA,Fernandes A,Guabiraba R,Russo RC,Vieira LQ,Corrêa A Jr,Teixeira MM,Negrão-Corrêa D

    更新日期:2011-04-01 00:00:00

  • Cloning and expression of Staphylococcus saprophyticus urease gene sequences in Staphylococcus carnosus and contribution of the enzyme to virulence.

    abstract::The urease gene of Staphylococcus saprophyticus CCM883 was cloned and expressed in Staphylococcus carnosus TM300. In vitro translation of the cloned DNA sequences revealed six polypeptides (of 70, 47, 29, 27, 20, and 17 kilodaltons) that were associated with enzyme activity. Introduction of the cloned genes into a ure...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.57.10.2998-3002.1989

    authors: Gatermann S,Marre R

    更新日期:1989-10-01 00:00:00

  • Virus production and release, cell longevity, and cloning efficiency of chicken embryo fibroblasts infected with Rous sarcoma virus.

    abstract::Continuous virus production is a characteristic of chicken embryo fibroblasts (CEF) infected and transformed by a nondefective Schmidt-Ruppin subgroup A Rous sarcoma virus. This virus production has been examined with particular attention to the amount of newly budded virus which remained cell-associated, and to the a...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.10.4.834-843.1974

    authors: Volkmann KR,Morgan HR

    更新日期:1974-10-01 00:00:00

  • Loss of sigma factor RpoN increases intestinal colonization of Vibrio parahaemolyticus in an adult mouse model.

    abstract::Vibrio parahaemolyticus is the leading cause of bacterial seafood-borne gastroenteritis worldwide, yet little is known about how this pathogen colonizes the human intestine. The alternative sigma factor RpoN/sigma-54 is a global regulator that controls flagellar synthesis, as well as a wide range of nonflagellar genes...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.01210-13

    authors: Whitaker WB,Richards GP,Boyd EF

    更新日期:2014-02-01 00:00:00

  • Demonstration of lipopolysaccharide with O-polysaccharide chains among different heat-stable serotypes of Campylobacter jejuni by silver staining of polyacrylamide gels.

    abstract::Lipopolysaccharide (LPS) from three human and four monkey isolates of Campylobacter jejuni was extracted in high yields that revealed ladder-like structures in polyacrylamide gels by direct silver staining. These observations demonstrate that C. jejuni possesses LPS with O-chain repeating units typical of the family E...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.61.12.5384-5387.1993

    authors: Blake DC Jr,Russell RG

    更新日期:1993-12-01 00:00:00

  • The sigma B regulon influences internalization of Staphylococcus aureus by osteoblasts.

    abstract::Individual strains of Staphylococcus aureus have different capacities to become internalized by osteoblasts. Here we report that the levels of sigma(B) expressed by S. aureus correlate with the capacity of this bacterium to be internalized by osteoblasts. However, sigma(B) is not essential for internalization and does...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.71.7.4167-4170.2003

    authors: Nair SP,Bischoff M,Senn MM,Berger-Bächi B

    更新日期:2003-07-01 00:00:00

  • Functional variation of the antigen I/II surface protein in Streptococcus mutans and Streptococcus intermedius.

    abstract::Although Streptococcus intermedius and Streptococcus mutans are regarded as members of the commensal microflora of the body, S. intermedius is often associated with deep-seated purulent infections, whereas S. mutans is frequently associated with dental caries. In this study, we investigated the roles of the S. mutans ...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.70.1.249-256.2002

    authors: Petersen FC,Assev S,van der Mei HC,Busscher HJ,Scheie AA

    更新日期:2002-01-01 00:00:00

  • A hemagglutinin of uropathogenic Escherichia coli recognizes the Dr blood group antigen.

    abstract::A receptor moiety and blood group substance recognized by the O75X adhesin was studied. Well-defined erythrocytes representing different blood group systems and bacterial derivatives carrying plasmid pBJN406 encoding the adhesin were used in a direct hemagglutination assay. We showed that Dr blood group antigen, a com...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.56.5.1057-1060.1988

    authors: Nowicki B,Moulds J,Hull R,Hull S

    更新日期:1988-05-01 00:00:00

  • Receptors for fibrinogen and aggregated beta 2-microglobulin detected in strains of group B streptococci.

    abstract::Binding of radiolabeled human fibrinogen and aggregated beta-microglobulin was measured in 60 strains of beta-hemolytic group B streptococci. Positive fibrinogen binding was detected in seven of the strains. Six of the group B strains showed an uptake of aggregated beta 2-microglobulin. Four individual strains carried...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.31.3.856-861.1981

    authors: Schönbeck C,Björck L,Kronvall G

    更新日期:1981-03-01 00:00:00

  • Anti-Pneumococcal Capsular Polysaccharide Antibody Response and CD5 B Lymphocyte Subsets.

    abstract::The role of CD19(+) CD5(+) and CD19(+) CD5(-) B cell subpopulations in the antibody response to pneumococcal capsular polysaccharides (caps-PSs) is controversial. In the present study, we evaluated the role of human CD19(+) CD5(+) and CD19(+) CD5(-) cell populations in the serotype-specific antibody response to caps-P...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00068-15

    authors: Moens L,Verbinnen B,Covens K,Wuyts G,Johnson M,Roalfe L,Goldblatt D,Meyts I,Bossuyt X

    更新日期:2015-07-01 00:00:00

  • Effects of a phagocytosis-stimulating factor derived from polymorphonuclear neutrophils on the functions of macrophages.

    abstract::The effects of phagocytosis-stimulating factor (PSF) derived from polymorphonuclear neutrophils on macrophage functions were studied. PSF enhanced the initial rate of phagocytosis of serum-opsonized zymosan particles by macrophages, whereas it did not affect the phagocytosis of immunoglobulin G-sensitized and inert zy...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.55.8.1762-1766.1987

    authors: Ishibashi Y,Yamashita T

    更新日期:1987-08-01 00:00:00

  • A beta-related corynebacteriophage which lacks a tox allele but can acquire it by recombination with converting phage.

    abstract::Corynebacteriophage 782, a phage highly related to the beta family of corynebacteriophages but lacking a tox allele, was isolated from a nontoxinogenic clinical isolate of Corynebacterium diphtheriae. Phage 782 exhibits beta immunity but has a wider host range than beta, forming plaques on strains of C. ulcerans and C...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.49.1.32-35.1985

    authors: Cianciotto N,Groman N

    更新日期:1985-07-01 00:00:00

  • The omp2 gene locus of Brucella abortus encodes two homologous outer membrane proteins with properties characteristic of bacterial porins.

    abstract::In Brucella abortus, a gene encoding a major cell envelope protein, omp2, is duplicated within a short segment of the large chromosomal DNA. Although both genes contain open reading frames, encoding proteins of high identity, expression from only one, omp2b, has been detected in laboratory-grown B. abortus. In the pre...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.61.9.3785-3790.1993

    authors: Marquis H,Ficht TA

    更新日期:1993-09-01 00:00:00

  • New type of exfoliatin obtained from staphylococcal strains, belonging to phage groups other than group II, isolated from patients with impetigo and Ritter's disease.

    abstract::Four strains of Staphylococcus aureus of a phage type other than the second group, isolated from patients with impetigo and Ritter's disease, were found to produce an exotoxin similar to those reported by Melish et al. (1972), Kapral and Miller (1971), and Arbuthnott et al. (1973). This toxin could elicit a general ex...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.10.4.851-861.1974

    authors: Kondo I,Sakurai S,Sarai Y

    更新日期:1974-10-01 00:00:00

  • Impact of M49, Mrp, Enn, and C5a peptidase proteins on colonization of the mouse oral mucosa by Streptococcus pyogenes.

    abstract::Resistance to phagocytosis is a hallmark of virulent Streptococcus pyogenes (group A streptococcus). Surface-bound C5a peptidase reduces recruitment of phagocytes to the site of infection, and hyaluronic acid capsules and/or the M protein limit the uptake of streptococci. In this study the relative impact of M and M-l...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.66.11.5399-5405.1998

    authors: Ji Y,Schnitzler N,DeMaster E,Cleary P

    更新日期:1998-11-01 00:00:00

  • Up-regulation of interleukin-8 by novel small cytoplasmic molecules of nontypeable Haemophilus influenzae via p38 and extracellular signal-regulated kinase pathways.

    abstract::Nontypeable Haemophilus influenzae (NTHI) is an important etiological agent of otitis media (OM) and of exacerbated chronic obstructive pulmonary diseases (COPD). Inflammation is a hallmark of both diseases. Interleukin-8 (IL-8), one of the important inflammatory mediators, is induced by NTHI and may play a significan...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.71.10.5523-5530.2003

    authors: Wang B,Cleary PP,Xu H,Li JD

    更新日期:2003-10-01 00:00:00

  • Interaction of Gardnerella vaginalis and Vaginolysin with the Apical versus Basolateral Face of a Three-Dimensional Model of Vaginal Epithelium.

    abstract::Studies have implicated Gardnerella vaginalis as an important etiological agent in bacterial vaginosis (BV). It produces a cholesterol-dependent cytolysin, vaginolysin (VLY). In this study, we sought to characterize the interaction between vaginal epithelium, G. vaginalis, and VLY using EpiVaginal tissues from MatTek....

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/IAI.00646-18

    authors: Garcia EM,Kraskauskiene V,Koblinski JE,Jefferson KK

    更新日期:2019-03-25 00:00:00

  • Innate immune responses in children and adults with Shigellosis.

    abstract::An array of pro- and anti-inflammatory mediators of the innate immune system was analyzed in stool, urine, and rectal mucosa samples from adults and children with shigellosis to better understand their role in recovery from and in the immunopathogenesis of the disease. Increased concentrations of lactoferrin (Lf), mye...

    journal_title:Infection and immunity

    pub_type: 杂志文章

    doi:10.1128/iai.68.6.3620-3629.2000

    authors: Raqib R,Mia SM,Qadri F,Alam TI,Alam NH,Chowdhury AK,Mathan MM,Andersson J

    更新日期:2000-06-01 00:00:00