Analysis of stress- and host cell-induced expression of the Mycobacterium tuberculosis inorganic pyrophosphatase.

Abstract:

BACKGROUND:The gene encoding the inorganic pyrophosphatase (PPase) of the intracellular pathogen Legionella pneumophila is induced during intracellular infection, but is constitutively expressed in Escherichia coli. The causative agent of tuberculosis, Mycobacterium tuberculosis, contains a well conserved copy of PPase. We sought to determine if expression of the M. tuberculosis PPase is regulated by the intracellular environment. RESULTS:A strain of Mycobacterium bovis bacille Calmette-Guérin (BCG) was constructed in which the Aequoria victoria green fluorescent protein (GFP) is controlled by the promoter of the M. tuberculosis ppa gene. After prolonged exposure of the recombinant BCG strain within murine bone-marrow-derived macrophages, there was no observed increased activity of the ppa promoter. Furthermore, there was no change in promoter activity after exposure to various stress stimuli such as reduced pH, osmotic shock, nutrient limitation or oxidative stress. CONCLUSIONS:These results suggest that macrophage induction of ppa is not a general phenomenon among intracellular pathogens.

journal_name

BMC Microbiol

journal_title

BMC microbiology

authors

Triccas JA,Gicquel B

doi

10.1186/1471-2180-1-3

keywords:

subject

Has Abstract

pub_date

2001-01-01 00:00:00

pages

3

issn

1471-2180

journal_volume

1

pub_type

杂志文章
  • Evaluation of prokaryotic diversity of five hot springs in Eritrea.

    abstract:BACKGROUND:Total community rDNA was used to determine the diversity of bacteria and archaea from water, wet sediment and microbial mats samples of hot springs in the Eastern lowlands of Eritrea. The temperatures of the springs range from 49.5 °C to 100 °C while pH levels varied from 6.97 to 7.54. Akwar and Maiwooi have...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-017-1113-4

    authors: Ghilamicael AM,Budambula NLM,Anami SE,Mehari T,Boga HI

    更新日期:2017-09-22 00:00:00

  • Proposal of a quantitative PCR-based protocol for an optimal Pseudomonas aeruginosa detection in patients with cystic fibrosis.

    abstract:BACKGROUND:The lung of patients with cystic fibrosis (CF) is particularly sensitive to Pseudomonas aeruginosa. This bacterium plays an important role in the poor outcome of CF patients. During the disease progress, first acquisition of P. aeruginosa is the key-step in the management of CF patients. Quantitative PCR (qP...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-13-143

    authors: Le Gall F,Le Berre R,Rosec S,Hardy J,Gouriou S,Boisramé-Gastrin S,Vallet S,Rault G,Payan C,Héry-Arnaud G

    更新日期:2013-06-21 00:00:00

  • Application of fungal fluorescent staining in oral candidiasis: diagnostic analysis of 228 specimens.

    abstract:BACKGROUND:Several conventional methods, including fungal culture and periodic acid-Schiff (PAS) reagent staining, have been used to diagnose oral candidiasis. The aim of this study was to evaluate the efficacy of a novel method, fungal fluorescent staining, in relation to conventional protocols in the diagnosis of ora...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1467-x

    authors: Yao Y,Shi L,Zhang C,Sun H,Wu L

    更新日期:2019-05-14 00:00:00

  • Genetic diversity of Listeria monocytogenes strains in ruminant abortion and rhombencephalitis cases in comparison with the natural environment.

    abstract:BACKGROUND:Listeria monocytogenes is the causative agent of listeriosis, a serious disease affecting both animals and humans. Here, multilocus sequence typing (MLST) was used to characterize the genetic diversity of Listeria monocytogenes strains isolated from the natural environment and animal clinical cases in Europe...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1676-3

    authors: Papić B,Pate M,Félix B,Kušar D

    更新日期:2019-12-18 00:00:00

  • Laboratory contamination in airway microbiome studies.

    abstract:BACKGROUND:The low bacterial load in samples acquired from the lungs, have made studies on the airway microbiome vulnerable to contamination from bacterial DNA introduced during sampling and laboratory processing. We have examined the impact of laboratory contamination on samples collected from the lower airways by pro...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1560-1

    authors: Drengenes C,Wiker HG,Kalananthan T,Nordeide E,Eagan TML,Nielsen R

    更新日期:2019-08-14 00:00:00

  • msaABCR operon is involved in persister cell formation in Staphylococcus aureus.

    abstract:BACKGROUND:Persister cells comprise a phenotypic variant that shows extreme antibiotic tolerance resulting in treatment failures of bacterial infections. While this phenomenon has posed a great threat in public health, mechanisms underlying their formation in Staphylococcus aureus remain largely unknown. Increasing evi...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-017-1129-9

    authors: Sahukhal GS,Pandey S,Elasri MO

    更新日期:2017-11-22 00:00:00

  • Molecular characterization of Cryptosporidium spp. and Giardia duodenalis from yaks in the central western region of China.

    abstract:BACKGROUND:Cryptosporidium spp. and Giardia duodenalis are important causes of diarrheal diseases in humans and animals worldwide, and there is an increased interest in the role of animals in the mechanical transmission of these protozoa. To examine the role of yaks in this process, we examined the occurrence and genot...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-015-0446-0

    authors: Qi M,Cai J,Wang R,Li J,Jian F,Huang J,Zhou H,Zhang L

    更新日期:2015-05-21 00:00:00

  • Genomic analyses of two novel biofilm-degrading methicillin-resistant Staphylococcus aureus phages.

    abstract:BACKGROUND:Methicillin-resistant Staphylococcus aureus (MRSA) biofilm producers represent an important etiological agent of many chronic human infections. Antibiotics and host immune responses are largely ineffective against bacteria within biofilms. Alternative actions and novel antimicrobials should be considered. In...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1484-9

    authors: Dakheel KH,Rahim RA,Neela VK,Al-Obaidi JR,Hun TG,Isa MNM,Yusoff K

    更新日期:2019-05-28 00:00:00

  • Novel linear lipopeptide paenipeptin C' binds to lipopolysaccharides and lipoteichoic acid and exerts bactericidal activity by the disruption of cytoplasmic membrane.

    abstract:BACKGROUND:There is an urgent need to develop potent antimicrobials for the treatment of infections caused by antibiotic-resistant bacterial pathogens. Paenipeptin C' (C8-Pat) is a novel linear lipopeptide recently discovered by our group. The objectives of this study were to determine the time-kill kinetics of paenipe...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-018-1381-7

    authors: Moon SH,Huang E

    更新日期:2019-01-08 00:00:00

  • Effects of hepatitis C virus core protein and nonstructural protein 4B on the Wnt/β-catenin pathway.

    abstract:BACKGROUND:Hepatitis C virus (HCV) core protein and nonstructural protein 4B (NS4B) are potentially oncogenic. Aberrant activation of the Wnt/β-catenin signaling pathway is closely associated with hepatocarcinogenesis. We investigated the effects of HCV type 1b core protein and NS4B on Wnt/β-catenin signaling in variou...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-017-1032-4

    authors: Jiang XH,Xie YT,Cai YP,Ren J,Ma T

    更新日期:2017-05-25 00:00:00

  • Genetic and pathogenic difference between Streptococcus agalactiae serotype Ia fish and human isolates.

    abstract:BACKGROUND:Streptococcus agalactiae (GBS) is a common pathogen to infect newborn, woman, the elderly, and immuno-compromised human and fish. 37 fish isolates and 554 human isolates of the GBS in 2007-2012 were investigated in serotypes, antibiotic susceptibility, genetic difference and pathogenicity to tilapia. RESULT...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-016-0794-4

    authors: Chu C,Huang PY,Chen HM,Wang YH,Tsai IA,Lu CC,Chen CC

    更新日期:2016-08-02 00:00:00

  • Identification of new genes in Sinorhizobium meliloti using the Genome Sequencer FLX system.

    abstract:BACKGROUND:Sinorhizobium meliloti is an agriculturally important model symbiont. There is an ongoing need to update and improve its genome annotation. In this study, we used a high-throughput pyrosequencing approach to sequence the transcriptome of S. meliloti, and search for new bacterial genes missed in the previous ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-8-72

    authors: Mao C,Evans C,Jensen RV,Sobral BW

    更新日期:2008-05-02 00:00:00

  • Borrelia burgdorferi induces a type I interferon response during early stages of disseminated infection in mice.

    abstract:BACKGROUND:Lyme borrelia genotypes differ in their capacity to cause disseminated disease. Gene array analysis was employed to profile the host transcriptome induced by Borrelia burgdorferi strains with different capacities for causing disseminated disease in the blood of C3H/HeJ mice during early infection. RESULTS:B...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-016-0644-4

    authors: Petzke MM,Iyer R,Love AC,Spieler Z,Brooks A,Schwartz I

    更新日期:2016-03-08 00:00:00

  • Transcriptional analysis of the Escherichia coli ColV-Ia plasmid pS88 during growth in human serum and urine.

    abstract:BACKGROUND:The sequenced O45:K1:H7 Escherichia coli meningitis strain S88 harbors a large virulence plasmid. To identify possible genetic determinants of pS88 virulence, we examined the transcriptomes of 88 plasmidic ORFs corresponding to known and putative virulence genes, and 35 ORFs of unknown function. RESULTS:Qua...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-12-115

    authors: Lemaître C,Bidet P,Bingen E,Bonacorsi S

    更新日期:2012-06-21 00:00:00

  • Inducible Siphoviruses in superficial and deep tissue isolates of Propionibacterium acnes.

    abstract:BACKGROUND:Propionibacterium acnes is a commensal of human skin but is also known to be involved in certain diseases, such as acne vulgaris and infections of orthopaedic implants. Treatment of these conditions is complicated by increased resistance to antibiotics and/or biofilm formation of P. acnes bacteria. P. acnes ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-8-139

    authors: Lood R,Mörgelin M,Holmberg A,Rasmussen M,Collin M

    更新日期:2008-08-15 00:00:00

  • Effects of disruption of heat shock genes on susceptibility of Escherichia coli to fluoroquinolones.

    abstract:BACKGROUND:It is well known that expression of certain bacterial genes responds rapidly to such stimuli as exposure to toxic chemicals and physical agents. It is generally believed that the proteins encoded in these genes are important for successful survival of the organism under the hostile conditions. Analogously, t...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-3-16

    authors: Yamaguchi Y,Tomoyasu T,Takaya A,Morioka M,Yamamoto T

    更新日期:2003-08-12 00:00:00

  • Development of a rapid and simplified protocol for direct bacterial identification from positive blood cultures by using matrix assisted laser desorption ionization time-of- flight mass spectrometry.

    abstract:BACKGROUND:Bloodstream infections represent serious conditions carrying a high mortality and morbidity rate. Rapid identification of microorganisms and prompt institution of adequate antimicrobial therapy is of utmost importance for a successful outcome. Aiming at the development of a rapid, simplified and efficient pr...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-015-0594-2

    authors: Jakovljev A,Bergh K

    更新日期:2015-11-06 00:00:00

  • Evaluation of the interaction between polymyxin B and Pseudomonas aeruginosa biofilm and planktonic cells: reactive oxygen species induction and zeta potential.

    abstract:BACKGROUND:Although the most widely accepted mechanism of action for polymyxins is related to bacterial lysis via disruption, we hypothesized that this antimicrobial drug class could have other effects on Pseudomonas aeruginosa planktonic and sessile cells. Little is known regarding oxidative burst and zeta potential (...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1485-8

    authors: Lima MR,Ferreira GF,Nunes Neto WR,Monteiro JM,Santos ÁRC,Tavares PB,Denadai ÂML,Bomfim MRQ,Dos Santos VL,Marques SG,de Souza Monteiro A

    更新日期:2019-05-29 00:00:00

  • The HMI™ module: a new tool to study the Host-Microbiota Interaction in the human gastrointestinal tract in vitro.

    abstract:BACKGROUND:Recent scientific developments have shed more light on the importance of the host-microbe interaction, particularly in the gut. However, the mechanistic study of the host-microbe interplay is complicated by the intrinsic limitations in reaching the different areas of the gastrointestinal tract (GIT) in vivo....

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-14-133

    authors: Marzorati M,Vanhoecke B,De Ryck T,Sadaghian Sadabad M,Pinheiro I,Possemiers S,Van den Abbeele P,Derycke L,Bracke M,Pieters J,Hennebel T,Harmsen HJ,Verstraete W,Van de Wiele T

    更新日期:2014-05-22 00:00:00

  • BB0324 and BB0028 are constituents of the Borrelia burgdorferi β-barrel assembly machine (BAM) complex.

    abstract:BACKGROUND:Similar to Gram-negative bacteria, the outer membrane (OM) of the pathogenic spirochete, Borrelia burgdorferi, contains integral OM-spanning proteins (OMPs), as well as membrane-anchored lipoproteins. Although the mechanism of OMP biogenesis is still not well-understood, recent studies have indicated that a ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-12-60

    authors: Lenhart TR,Kenedy MR,Yang X,Pal U,Akins DR

    更新日期:2012-04-20 00:00:00

  • Azithromycin effectiveness against intracellular infections of Francisella.

    abstract:BACKGROUND:Macrolide antibiotics are commonly administered for bacterial respiratory illnesses. Azithromycin (Az) is especially noted for extremely high intracellular concentrations achieved within macrophages which is far greater than the serum concentration. Clinical strains of Type B Francisella (F.) tularensis have...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-10-123

    authors: Ahmad S,Hunter L,Qin A,Mann BJ,van Hoek ML

    更新日期:2010-04-23 00:00:00

  • Genetic polymorphisms identify in species/biovars of Brucella isolated in China between 1953 and 2013 by MLST.

    abstract:BACKGROUND:Brucellosis incidence in China is divided into three stages: high incidence (1950s-1960s), decline (1970s-1980s), and re-emergence (1990s-2010s). At the re-emergence stage, Brucellosis incidence grew exponentially and spread to all 32 provinces. We describe the magnitude and the etiological distribution chan...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-018-1149-0

    authors: Piao DR,Liu X,Di DD,Xiao P,Zhao ZZ,Xu LQ,Tian GZ,Zhao HY,Fan WX,Cui BY,Jiang H

    更新日期:2018-01-10 00:00:00

  • Genotypic and phenotypic relatedness of Pseudomonas aeruginosa isolates among the major cystic fibrosis patient cohort in Italy.

    abstract:BACKGROUND:Pseudomonas aeruginosa is the predominant pathogen associated with the decline of pulmonary function in cystic fibrosis (CF) patients. Both environment-to-host acquisition and patient-to-patient transmission have been described for P. aeruginosa infection. Epidemic clones and bacterial phenotypic adaptation ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-016-0760-1

    authors: Cigana C,Melotti P,Baldan R,Pedretti E,Pintani E,Iansa P,De Fino I,Favari F,Bergamini G,Tridello G,Cirillo DM,Assael BM,Bragonzi A

    更新日期:2016-07-11 00:00:00

  • Comparison of various molecular methods for rapid differentiation of intestinal bifidobacteria at the species, subspecies and strain level.

    abstract:BACKGROUND:Members of the genus Bifidobacterium are anaerobic Gram-positive Actinobacteria, which are natural inhabitants of human and animal gastrointestinal tract. Certain bifidobacteria are frequently used as food additives and probiotic pharmaceuticals, because of their various health-promoting properties. Due to t...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-016-0779-3

    authors: Jarocki P,Podleśny M,Komoń-Janczara E,Kucharska J,Glibowska A,Targoński Z

    更新日期:2016-07-22 00:00:00

  • Lactobacilli spp.: real-time evaluation of biofilm growth.

    abstract:BACKGROUND:Biofilm is a fundamental bacterial survival mode which proceeds through three main generalized phases: adhesion, maturation, and dispersion. Lactobacilli spp. (LB) are critical components of gut and reproductive health and are widely used probiotics. Evaluation of time-dependent mechanisms of biofilm formati...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-020-01753-3

    authors: Martinez S,Garcia JG,Williams R,Elmassry M,West A,Hamood A,Hurtado D,Gudenkauf B,Ventolini G,Schlabritz-Loutsevitch N

    更新日期:2020-03-24 00:00:00

  • Composition of soil microbiome along elevation gradients in southwestern highlands of Saudi Arabia.

    abstract:BACKGROUND:Saudi Arabia is mostly barren except the southwestern highlands that are susceptible to environmental changes, a hotspot for biodiversity, but poorly studied for microbial diversity and composition. In this study, 454-pyrosequencing of 16S rRNA gene hypervariable region V6 was used to analyze soil bacterial ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-015-0398-4

    authors: Yasir M,Azhar EI,Khan I,Bibi F,Baabdullah R,Al-Zahrani IA,Al-Ghamdi AK

    更新日期:2015-03-14 00:00:00

  • Temporal activation of anti- and pro-apoptotic factors in human gingival fibroblasts infected with the periodontal pathogen, Porphyromonas gingivalis: potential role of bacterial proteases in host signalling.

    abstract:BACKGROUND:Porphyromonas gingivalis is the foremost oral pathogen of adult periodontitis in humans. However, the mechanisms of bacterial invasion and the resultant destruction of the gingival tissue remain largely undefined. RESULTS:We report host-P. gingivalis interactions in primary human gingival fibroblast (HGF) c...

    journal_title:BMC microbiology

    pub_type: 杂志文章,收录出版

    doi:10.1186/1471-2180-6-26

    authors: Urnowey S,Ansai T,Bitko V,Nakayama K,Takehara T,Barik S

    更新日期:2006-03-08 00:00:00

  • Safety evaluation of the antimicrobial peptide bovicin HC5 orally administered to a murine model.

    abstract:BACKGROUND:Bovicin HC5 is an antimicrobial peptide that shows a broad spectrum of activity and potential for biotechnological and therapeutic applications. To gain insight about the safety of bovicin HC5 application, the histological and immunostimulatory effects of orally administrated bovicin HC5 to BALB/c mice were ...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-13-69

    authors: Paiva AD,Fernandes KM,Dias RS,Rocha Ados S,Oliveira LL,Neves CA,Paula SO,Mantovani HC

    更新日期:2013-03-27 00:00:00

  • Robustness analysis of culturing perturbations on Escherichia coli colony biofilm beta-lactam and aminoglycoside antibiotic tolerance.

    abstract:BACKGROUND:Biofilms are ubiquitous. For instance, the majority of medical infections are thought to involve biofilms. However even after decades of investigation, the in vivo efficacy of many antimicrobial strategies is still debated suggesting there is a need for better understanding of biofilm antimicrobial tolerance...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/1471-2180-10-185

    authors: Zuroff TR,Bernstein H,Lloyd-Randolfi J,Jimenez-Taracido L,Stewart PS,Carlson RP

    更新日期:2010-07-07 00:00:00

  • Variation of growth characteristics of pneumococcus with environmental conditions.

    abstract:BACKGROUND:Pneumococcus is exposed to a variety of temperature and oxygen levels in the upper respiratory tract and as it invades the lung, tissues, and blood. We sought to determine the effect of environmental variability on growth in vitro and to assess variability between strains. We evaluated the effect of temperat...

    journal_title:BMC microbiology

    pub_type: 杂志文章

    doi:10.1186/s12866-019-1671-8

    authors: Tóthpál A,Desobry K,Joshi SS,Wyllie AL,Weinberger DM

    更新日期:2019-12-26 00:00:00