Quantitation of H. pylori cytotoxin mRNA by real-time RT-PCR shows a wide expression range that does not correlate with promoter sequences.

Abstract:

:Up to 28-fold differences in vacA expression in Helicobacter pylori strains grown in vitro were demonstrated by real time quantitative RT-PCR. These large differences in expression were unrelated to putative -35 and -10 motifs or to other untranslated sequences upstream of the ATG start site. The lack of correlation between promoter sequences and the vacA expression levels suggest the potential existence of a bacterial strain-specific factor, as earlier proposed by others on the basis of reporter gene fusions.

journal_name

Microb Pathog

journal_title

Microbial pathogenesis

authors

Ayala G,Chihu L,Perales G,Fierros-Zárate G,Hansen LM,Solnick JV,Sánchez J

doi

10.1016/j.micpath.2004.06.003

subject

Has Abstract

pub_date

2004-09-01 00:00:00

pages

163-7

issue

3

eissn

0882-4010

issn

1096-1208

pii

S0882-4010(04)00075-0

journal_volume

37

pub_type

杂志文章
  • Characterization of a DNA region containing 5'-(CAAT)(n)-3' DNA sequences involved in lipooligosaccharide biosynthesis in Haemophilus somnus.

    abstract::Repetitive tetranucleotide sequences of 5'-(CAAT)(n)-3' have been identified at the 5' end of an open reading frame (ORF) named lob1 from Haemophilus somnus strain 738. Based on sequence analysis, lob1 has 59% DNA homology to lex2B, which is involved in lipooligosaccharide (LOS) biosynthesis in H. influenzae. We now r...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1006/mpat.1999.0351

    authors: McQuiston JH,McQuiston JR,Cox AD,Wu Y,Boyle SM,Inzana TJ

    更新日期:2000-05-01 00:00:00

  • Gene expression signatures characterizing the development of lymphocyte response during experimental Chlamydia pneumoniae infection.

    abstract::In this study experimental mouse model for Chlamydia pneumoniae infection was used to elucidate the nature of immune response developing during primary and secondary infection. First we examined the mononuclear cells from different lymphoid organs in BALB/c mice during C. pneumoniae infection and detected a strong lym...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2009.01.006

    authors: Kyläniemi MK,Haveri A,Vuola JM,Puolakkainen M,Lahesmaa R

    更新日期:2009-05-01 00:00:00

  • Construction of a rhamnose mutation in Bacillus anthracis affects adherence to macrophages but not virulence in guinea pigs.

    abstract::Carbohydrate analyses of whole-spore extracts have confirmed the presence of rhamnose in the spore of the fully virulent Ames strain of Bacillus anthracis. A gene cluster containing loci with high homology to the rhamnose biosynthetic genes, rmlACBD, was identified within the B. anthracis chromosome. The first gene of...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2004.10.001

    authors: Bozue JA,Parthasarathy N,Phillips LR,Cote CK,Fellows PF,Mendelson I,Shafferman A,Friedlander AM

    更新日期:2005-01-01 00:00:00

  • The effect of the hepatitis C virus (HCV) NS3 protein on the expression of miR-150, miR-199a, miR-335, miR-194 and miR-27a.

    abstract::Hepatitis C virus (HCV) infection is considered one of the most important causes of chronic liver diseases. Many reports have shown that the proteins of the HCV via interactions with gene expression regulatory networks such as cellular pathways and microRNAs can contribute to the development of chronic liver diseases....

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2017.03.004

    authors: Khanizadeh S,Ravanshad M,Hosseini SY,Davoodian P,Almasian M,Khanlari Z

    更新日期:2017-09-01 00:00:00

  • Host-directed therapies to combat tuberculosis and associated non-communicable diseases.

    abstract::Mycobacterium tuberculosis (Mtb) has coevolved with a human host to evade and exploit the immune system in multiple ways. Mtb is an enormously successful human pathogen that can remain undetected in hosts for decades without causing clinical disease. While tuberculosis (TB) represents a perfect prototype of host-patho...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章,评审

    doi:10.1016/j.micpath.2019.03.003

    authors: Baindara P

    更新日期:2019-05-01 00:00:00

  • Association between HLA-Ⅱgene polymorphism and Helicobacter pylori infection in Asian and European population: A meta-analysis.

    abstract:BACKGROUND:It is generally considered that HLA-Ⅱ genes contribute to the Helicobacter pylori (Hp) infection and disease development process. AIMS:To perform a meta-analysis to explore the relationship between HLA-Ⅱgene polymorphism and host susceptibility to Hp infection. METHODS:Relevant cohort studies, case-control...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章,meta分析

    doi:10.1016/j.micpath.2015.03.011

    authors: Wang J,Zhang Q,Liu Y,Han J,Ma X,Luo Y,Liang Y,Zhang L,Hu Y

    更新日期:2015-05-01 00:00:00

  • Selective permissiveness of TPA differentiated THP-1 myelomonocytic cells for human cytomegalovirus strains AD169 and Towne.

    abstract::Two highly passaged laboratory strains of human cytomegalovirus (HCMV), AD169 and Towne, were tested for their ability to infect and replicate in THP-1 myelomonocytic cells differentiated with 12-O-tetradecanoylphorbol-13-acetate (TPA). TPA treatment of human THP-1 cells increased the number of cells that expressed HC...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1006/mpat.1994.1037

    authors: Turtinen LW,Seufzer BJ

    更新日期:1994-05-01 00:00:00

  • Analysis of the influence of living environment and age on vaginal fungal microbiome in giant pandas (Ailuropoda melanoleuca) by high throughput sequencing.

    abstract::A recent study has described the normal vaginal bacterial community in giant pandas, but there is a lack of knowledge of the fungal community residing in the vagina of giant pandas. In order to comprehensively understand the vaginal fungal microbial diversity and abundance in giant pandas, high throughput sequencing w...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2017.12.067

    authors: Chen D,Li C,Feng L,Zhang Z,Zhang H,Cheng G,Li D,Zhang G,Wang H,Chen Y,Feng M,Wang C,Wu H,Deng L,Ming H,Yang X

    更新日期:2018-02-01 00:00:00

  • Chlamydia pneumoniae facilitates monocyte adhesion to endothelial and smooth muscle cells.

    abstract::Chlamydia pneumoniae has been linked to atherosclerotic heart disease. However, there is a limited knowledge by which C. pneumoniae gain access to atheromatous lesions. The adhesion of C. pneumoniae -infected circulatory component(s) to endothelium and smooth muscle cells represents the first step in an inflammatory r...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1006/mpat.2000.0420

    authors: Kaul R,Wenman WM

    更新日期:2001-03-01 00:00:00

  • Binding of Porphyromonas gingivalis gingipains to human CD4(+) T cells preferentially down-regulates surface CD2 and CD4 with little affect on co-stimulatory molecule expression.

    abstract::The role of Porphyromonas gingivalis cysteine proteinases (gingipains) in the evasion of host cell-mediated immunity has not been fully determined. In this study, modulation by gingipains of accessory and co-stimulatory molecule expression on human CD4(+) T cells was evaluated. Arg-gingipain rather than Lys-gingipain ...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2005.01.001

    authors: Yun PL,Decarlo AA,Chapple CC,Collyer CA,Hunter N

    更新日期:2005-02-01 00:00:00

  • Mannosylated lipoarabinomannan balances apoptosis and inflammatory state in mycobacteria-infected and uninfected bystander macrophages.

    abstract::To assess the role of mannosylated lipoarabinomannan (ManLAM) in the inflammatory and apoptotic response of mycobacteria-infected and uninfected, bystander cells we applied a mouse macrophage model of infection with avirulent strains--Mycobacterium bovis BCG, Mycobacterium tuberculosis (MTB) H37Ra and compared with a ...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2011.03.004

    authors: Wojtas B,Fijalkowska B,Wlodarczyk A,Schollenberger A,Niemialtowski M,Hamasur B,Pawlowski A,Krzyzowska M

    更新日期:2011-07-01 00:00:00

  • Elevated production of IL-36α in chronic hepatitis B virus-infected patients correlates with viral load.

    abstract::Chronic hepatitis B (CHB) infection is a typical inflammatory disease characterized by a dysregulated expression of cytokines, which contributes to the pathogenesis of chronic Hepatitis B virus (HBV) infection. IL-36 cytokines (IL-36α, IL-36β, IL-36γ and IL-36Ra) are important players in infection and immunity. Howeve...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2017.11.023

    authors: Gong Y,Tingxi Z,Qing L,Guozhen Z,Bing T,Xiaoliang Y,Yan W,Wenjuan J,Yan X,Hui L,Xue H,Zebo Y

    更新日期:2017-12-01 00:00:00

  • Anti-quorum sensing and antibiofilm activities of Blastobotrys parvus PPR3 against Pseudomonas aeruginosa PAO1.

    abstract::The bacterial cell communication also termed as Quorum sensing (QS) system was involved in the expression of several virulence traits during Pseudomonas infection. The attenuating of this bacterial cell communication system is an attractive approach for the management of bacterial infections without the complication o...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2019.103811

    authors: Parasuraman P,Devadatha B,Sarma VV,Ranganathan S,Ampasala DR,Siddhardha B

    更新日期:2020-01-01 00:00:00

  • Identification of oligopeptide-binding protein (OppA) and its role in the virulence of Streptococcus suis serotype 2.

    abstract::The oligopeptide permease (Opp) cassette, an oligopeptide transport system belongs to the superfamily of ATP-binding cassette (ABC) transporter, is widely distributed in bacteria, including Streptococcus suis (S. suis). It is encoded by the opp operon containing oppA, oppB, oppC, oppD, and oppF. In addition to the upt...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2018.03.061

    authors: Zheng F,Shao ZQ,Hao X,Wu Q,Li C,Hou H,Hu D,Wang C,Pan X

    更新日期:2018-05-01 00:00:00

  • Effect of mucin on Campylobacter jejuni association and invasion on HEp-2 cells.

    abstract::We report the development of an in vitro assay using HEp-2 cell monolayers in which cell association of five C. jejuni strains and E. coli K12 C600 were tested under different experimental conditions. Both total cell associated colony forming units (CFU) and the CFU protected from gentamicin killing (i.e. internalized...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/0882-4010(88)90083-6

    authors: de Melo MA,Pechère JC

    更新日期:1988-07-01 00:00:00

  • Biological effects of two genetically defined leukotoxin mutants of Mannheimia haemolytica.

    abstract::Mannheimia(Pasteurella)haemolytica serotype 1 is the primary causative agent responsible for bovine pneumonic mannheimiosis, also known as shipping fever in cattle. The bacterium produces a variety of virulence factors, foremost of which is the exotoxic leukotoxin. The leukotoxin is a calcium-dependent cytolysin that ...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/s0882-4010(03)00033-0

    authors: Thumbikat P,Briggs RE,Kannan MS,Maheswaran SK

    更新日期:2003-05-01 00:00:00

  • Treponema denticola invasion into human gingival epithelial cells.

    abstract::Host cell invasion is important for periodontal pathogens in evading host defenses and spreading into deeper areas of the periodontal tissue. Treponema denticola has been implicated in a number of potentially pathogenic processes, including periodontal tissue penetration. Here we tested the ability of T. denticola str...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2016.01.010

    authors: Inagaki S,Kimizuka R,Kokubu E,Saito A,Ishihara K

    更新日期:2016-05-01 00:00:00

  • Evaluation of antibacterial and antioxidant potential of the zinc oxide nanoparticles synthesized by aqueous and polyol method.

    abstract::In this paper, we have reported the synthesis, characterization, and evaluation of antimicrobial and antioxidant potential of monodispersed Zinc Oxide (ZnO) nanoparticles synthesized by the room temperature precipitation (aqueous phase) and polyol method (organic phase). ZnO nanoparticle synthesized by both the method...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2018.03.048

    authors: Soren S,Kumar S,Mishra S,Jena PK,Verma SK,Parhi P

    更新日期:2018-06-01 00:00:00

  • Biosynthesis of silver nanoparticles using a probiotic Bacillus licheniformis Dahb1 and their antibiofilm activity and toxicity effects in Ceriodaphnia cornuta.

    abstract::In the present study, we synthesized and characterized a probiotic Bacillus licheniformis cell free extract (BLCFE) coated silver nanoparticles (BLCFE-AgNPs). These BLCFE-AgNPs were characterized by UV-visible spectrophotometer, XRD, EDX, FTIR, TEM and AFM. A strong surface plasmon resonance centered at 422 nm in UV-v...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2016.01.014

    authors: Shanthi S,Jayaseelan BD,Velusamy P,Vijayakumar S,Chih CT,Vaseeharan B

    更新日期:2016-04-01 00:00:00

  • Mutation in the S-ribosylhomocysteinase (luxS) gene involved in quorum sensing affects biofilm formation and virulence in a clinical isolate of Aeromonas hydrophila.

    abstract::A diarrheal isolate SSU of Aeromonas hydrophila produces a cytotoxic enterotoxin (Act) with cytotoxic, enterotoxic, and hemolytic activities. Our laboratory has characterized from the above Aeromonas strain, in addition to Act, the type 3- and T6-secretion systems and their effectors, as well as the genes shown to mod...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2008.08.007

    authors: Kozlova EV,Popov VL,Sha J,Foltz SM,Erova TE,Agar SL,Horneman AJ,Chopra AK

    更新日期:2008-11-01 00:00:00

  • The characterization of bacterial communities of oropharynx microbiota in healthy children by combining culture techniques and sequencing of the 16S rRNA gene.

    abstract::The high incidence of bacterial respiratory infections has led to a focus on evaluating the human respiratory microbiome. Studies based on culture-based and molecular methods have shown an increase in the bacterial community that includes the bacterial phyla Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteri...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2020.104115

    authors: Maleki A,Zamirnasta M,Taherikalani M,Pakzad I,Mohammadi J,Krutova M,Kouhsari E,Sadeghifard N

    更新日期:2020-06-01 00:00:00

  • The surface structure seen on gonococci after treatment with CMP-NANA is due to sialylation of surface lipopolysaccharide previously described as a 'capsule'.

    abstract::Phenotypic serum resistance of gonococci in urethral exudates is due to sialylation of lipopolysaccharide (LPS) by host cytidine 5'-monophospho-N-acetyl neuraminic acid (CMP-NANA). A surface structure was visible on gonococci [strain BS4 (agar)] that had been stained with ruthenium red after incubation with CMP-NANA. ...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/0882-4010(91)90050-k

    authors: Fox AJ,Curry A,Jones DM,Demarco de Hormaeche R,Parsons NJ,Cole JA,Smith H

    更新日期:1991-09-01 00:00:00

  • Porcine 2', 5'-oligoadenylate synthetase 2 inhibits porcine reproductive and respiratory syndrome virus replication in vitro.

    abstract::Porcine reproductive and respiratory syndrome virus (PRRSV) is acknowledged a fulminating infectious pathogen affecting the pig farming industry, and current vaccines and drugs could hardly inhibit this virus. The 2', 5'-oligoadenylate synthetase (OASs) have antiviral activities, but the role(s) played by porcine OAS2...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2017.08.011

    authors: Zhao M,Wan B,Li H,He J,Chen X,Wang L,Wang Y,Xie S,Qiao S,Zhang G

    更新日期:2017-10-01 00:00:00

  • alpha-Hydroxynitrile lyase protein from Xylella fastidiosa: Cloning, expression, and characterization.

    abstract::Xylella fastidiosa is a xylem-restricted plant pathogen that causes a range of diseases in several and important crops. Through comparative genomic sequence analysis many genes were identified and, among them, several potentially involved in plant-pathogen interaction. The experimental determination of the primary seq...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2009.06.007

    authors: Caruso CS,de Fátima Travensolo R,de Campus Bicudo R,de Macedo Lemos EG,Ulian de Araújo AP,Carrilho E

    更新日期:2009-09-01 00:00:00

  • Recombinant truncated E protein as a new vaccine candidate against nontypeable H. influenzae: Its expression and immunogenic evaluation.

    abstract::Protein E (PE) is a conserved entity observed in both nontypeable Haemophilus influenzae (NTHi) and encapsulated H. influenzae. This is a small surface lipoprotein, consisting of only 160 amino acids, involved in the adhesion of H. influenzae to various types of epithelial cells. A 384-bp-long fragment from NTHi PE wa...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2017.07.025

    authors: Behrouzi A,Bouzari S,Vaziri F,Fateh A,Afrough P,Vijeh Motlagh AD,Siadat SD

    更新日期:2017-09-01 00:00:00

  • Resveratrol improves efficacy of oral amoxicillin against childhood fast breathing pneumonia in a randomized placebo-controlled double blind clinical trial.

    abstract::Childhood pneumonia has been considered as a major cause of child morbidity and mortality worldwide. We aimed to investigate the effect of resveratral in synergizing with oral amoxicillin to improve the treatment outcome of oral amoxicillin administration against childhood fast breathing pneumonia. 647 children diagno...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章,随机对照试验

    doi:10.1016/j.micpath.2017.11.062

    authors: Qiang L,Di Y,Jiang Z,Xu J

    更新日期:2018-01-01 00:00:00

  • Species and strain specificity of Lactobacillus probiotics effect on weight regulation.

    abstract::Certain strains of Lactobacillus appear to have a reproducible effect on weight as a weight-gain effect in lean humans and animals or a weight-loss effect in overweight/obese humans and animals. These results are completely sufficient to capture the attention of the scientific community to assess the effect on the wei...

    journal_title:Microbial pathogenesis

    pub_type: 评论,信件

    doi:10.1016/j.micpath.2012.09.013

    authors: Million M,Raoult D

    更新日期:2013-02-01 00:00:00

  • Transcriptional analysis reveals the relativity of acid tolerance and antimicrobial peptide resistance of Salmonella.

    abstract::The objective of this study was to comprehensively identify the target genes induced by acid stimulation in Salmonella, and to clarify the relativity of acid tolerance and antimicrobial peptide resistance. A clinical S. Typhimurium strain, S6, was selected and performed a transcriptome analysis under the acid toleranc...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2019.103701

    authors: Cao L,Wang J,Sun L,Kong Z,Wu Q,Wang Z

    更新日期:2019-11-01 00:00:00

  • Biomolecules-mediated synthesis of selenium nanoparticles using Aspergillus oryzae fermented Lupin extract and gamma radiation for hindering the growth of some multidrug-resistant bacteria and pathogenic fungi.

    abstract::Biosynthesis of nanoparticles by fermented plants using microbes is an eco-friendly and cost-effective process. In this study, we used the fungus Aspergillus orayzae for the fermentation process. The aqueous extract of fermented Lupin (AEFL) possesses the ability to reduce selenium ion in the presence of gamma rays ev...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2018.06.013

    authors: Mosallam FM,El-Sayyad GS,Fathy RM,El-Batal AI

    更新日期:2018-09-01 00:00:00

  • Protein chimeras containing the Mycoplasma bovis GAPDH protein and bovine host-defence peptides retain the properties of the individual components.

    abstract::Besides the well characterized role in glycolysis, glyceraldehyde-3-phosphate dehydrogenase (GAPDH) has been implicated in virulence of pathogenic micro-organisms and because of its cell surface location, it has been shown to act as an adhesin for colonization of tissue surfaces both for pathogenic and non-pathogenic ...

    journal_title:Microbial pathogenesis

    pub_type: 杂志文章

    doi:10.1016/j.micpath.2010.11.008

    authors: van der Merwe J,Prysliak T,Gerdts V,Perez-Casal J

    更新日期:2011-06-01 00:00:00