Trehalase plays a role in macrophage colonization and virulence of Burkholderia pseudomallei in insect and mammalian hosts.

Abstract:

:Trehalose is a disaccharide formed from two glucose molecules. This sugar molecule can be isolated from a range of organisms including bacteria, fungi, plants and invertebrates. Trehalose has a variety of functions including a role as an energy storage molecule, a structural component of glycolipids and plays a role in the virulence of some microorganisms. There are many metabolic pathways that control the biosynthesis and degradation of trehalose in different organisms. The enzyme trehalase forms part of a pathway that converts trehalose into glucose. In this study we set out to investigate whether trehalase plays a role in both stress adaptation and virulence of Burkholderia pseudomallei. We show that a trehalase deletion mutant (treA) had increased tolerance to thermal stress and produced less biofilm than the wild type B. pseudomallei K96243 strain. We also show that the ΔtreA mutant has reduced ability to survive in macrophages and that it is attenuated in both Galleria mellonella (wax moth larvae) and a mouse infection model. This is the first report that trehalase is important for bacterial virulence.

journal_name

Virulence

journal_title

Virulence

authors

Vanaporn M,Sarkar-Tyson M,Kovacs-Simon A,Ireland PM,Pumirat P,Korbsrisate S,Titball RW,Butt A

doi

10.1080/21505594.2016.1199316

subject

Has Abstract

pub_date

2017-01-02 00:00:00

pages

30-40

issue

1

eissn

2150-5594

issn

2150-5608

journal_volume

8

pub_type

杂志文章
  • Hypervirulent (hypermucoviscous) Klebsiella pneumoniae: a new and dangerous breed.

    abstract::A new hypervirulent (hypermucoviscous) variant of Klebsiella pneumoniae has emerged. First described in the Asian Pacific Rim, it now increasingly recognized in Western countries. Defining clinical features are the ability to cause serious, life-threatening community-acquired infection in younger healthy hosts, includ...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.22718

    authors: Shon AS,Bajwa RP,Russo TA

    更新日期:2013-02-15 00:00:00

  • Galleria mellonella as a host model to study Aspergillus terreus virulence and amphotericin B resistance.

    abstract::The aim of this study was to investigate if the alternative in vivo model Galleria mellonella can be used (i) to determine differences in pathogenicity of amphotericin B (AMB) resistant and susceptible A. terreus isolates, (ii) to evaluate AMB efficacy in vivo (iii) and to correlate outcome to in vitro susceptibility ...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2015.1045183

    authors: Maurer E,Browne N,Surlis C,Jukic E,Moser P,Kavanagh K,Lass-Flörl C,Binder U

    更新日期:2015-01-01 00:00:00

  • Verapamil inhibits efflux pumps in Candida albicans, exhibits synergism with fluconazole, and increases survival of Galleria mellonella.

    abstract::The emergence of resistance requires alternative methods to treat Candida albicans infections. We evaluated efficacy of the efflux pump inhibitor (EPI) verapamil (VER) with fluconazole (FLC) against FLC-resistant (CaR) and -susceptible C. albicans (CaS). The susceptibility of both strains to VER and FLC was determined...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2020.1868814

    authors: Vega-Chacón Y,de Albuquerque MC,Pavarina AC,Goldman GH,Mima EGO

    更新日期:2021-12-01 00:00:00

  • Particle size and pathogenicity in the respiratory tract.

    abstract::Particle size dictates where aerosolized pathogens deposit in the respiratory tract, thereafter the pathogens potential to cause disease is influenced by tissue tropism, clearance kinetics and the host immunological response. This interplay brings pathogens into contact with a range of tissues spanning the respiratory...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.27172

    authors: Thomas RJ

    更新日期:2013-11-15 00:00:00

  • Animal models of sepsis.

    abstract::Sepsis remains a common, serious, and heterogeneous clinical entity that is difficult to define adequately. Despite its importance as a public health problem, efforts to develop and gain regulatory approval for a specific therapeutic agent for the adjuvant treatment of sepsis have been remarkably unsuccessful. One ste...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.26083

    authors: Fink MP

    更新日期:2014-01-01 00:00:00

  • Functional and structural characteristics of bacterial proteins that bind host cytokines.

    abstract::Several human pathogens bind and respond to host cytokines, which can be considered a virulence mechanism that communicates defensive actions of the host to the pathogen. This review summarizes the current knowledge of bacterial cytokine-binding proteins, with a particular focus on their functional and structural char...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2017.1363140

    authors: Högbom M,Ihalin R

    更新日期:2017-11-17 00:00:00

  • Galleria mellonella as an infection model for the multi-host pathogen Streptococcus agalactiae reflects hypervirulence of strains associated with human invasive disease.

    abstract::Streptococcus agalactiae, or group B Streptococcus (GBS), infects diverse hosts including humans and economically important species such as cattle and fishes. In the context of human health, GBS is a major cause of neonatal infections and an emerging cause of invasive disease in adults and of foodborne disease in Sout...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2019.1631660

    authors: Six A,Krajangwong S,Crumlish M,Zadoks RN,Walker D

    更新日期:2019-12-01 00:00:00

  • Histone deacetylases inhibitors effects on Cryptococcus neoformans major virulence phenotypes.

    abstract::Cryptococcus neoformans undergoes phenotypical changes during host infection in order to promote persistence and survival. Studies have demonstrated that such adaptations require alterations in gene transcription networks by distinct mechanisms. Drugs such as the histone deacetylases inhibitors (HDACi) Sodium Butyrate...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2015.1038014

    authors: Brandão FA,Derengowski LS,Albuquerque P,Nicola AM,Silva-Pereira I,Poças-Fonseca MJ

    更新日期:2015-01-01 00:00:00

  • Regulation of transcription by eukaryotic-like serine-threonine kinases and phosphatases in Gram-positive bacterial pathogens.

    abstract::Bacterial eukaryotic-like serine threonine kinases (eSTKs) and serine threonine phosphatases (eSTPs) have emerged as important signaling elements that are indispensable for pathogenesis. Differing considerably from their histidine kinase counterparts, few eSTK genes are encoded within the average bacterial genome, and...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/21505594.2014.983404

    authors: Wright DP,Ulijasz AT

    更新日期:2014-01-01 00:00:00

  • Influence of maternal vaccination against diphtheria, tetanus, and pertussis on the avidity of infant antibody responses to a pertussis containing vaccine in Belgium.

    abstract::Maternal antibodies induced by vaccination during pregnancy cross the placental barrier and can close the susceptibility gap to pertussis in young infants up to the start of primary immunization. As not only the quantity but also the quality of circulating antibodies is important for protection, we assessed whether ma...

    journal_title:Virulence

    pub_type: 临床试验,杂志文章

    doi:10.1080/21505594.2017.1296998

    authors: Caboré RN,Maertens K,Dobly A,Leuridan E,Van Damme P,Huygen K

    更新日期:2017-10-03 00:00:00

  • Outer membrane Protein A plays a role in pathogenesis of Acinetobacter nosocomialis.

    abstract::Acinetobacter nosocomialis is an important nosocomial pathogen that causes a variety of human infections. However, the specific virulence factors of this microorganism have not yet been determined. We investigated the role of outer membrane protein A (OmpA) in the pathogenesis of A. nosocomialis. A ΔompA mutant of the...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2016.1140298

    authors: Kim SW,Oh MH,Jun SH,Jeon H,Kim SI,Kim K,Lee YC,Lee JC

    更新日期:2016-05-18 00:00:00

  • Approved and novel strategies in diagnostics of rat bite fever and other Streptobacillus infections in humans and animals.

    abstract::Rat bite fever (RBF), a worldwide occurring and most likely under-diagnosed zoonosis caused by Streptobacillus moniliformis, represents the most prominent disease of Streptobacillus infections. Recently, novel members have been described, from which a reservoir in rats and other animal species and a zoonotic potential...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2016.1177694

    authors: Eisenberg T,Ewers C,Rau J,Akimkin V,Nicklas W

    更新日期:2016-08-17 00:00:00

  • Galleria mellonella infection models for the study of bacterial diseases and for antimicrobial drug testing.

    abstract::Galleria mellonella (greater wax moth or honeycomb moth) has been introduced as an alternative model to study microbial infections. G. mellonella larvae can be easily and inexpensively obtained in large numbers and are simple to use as they don't require special lab equipment. There are no ethical constraints and thei...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2015.1135289

    authors: Tsai CJ,Loh JM,Proft T

    更新日期:2016-04-02 00:00:00

  • The cholinergic anti-inflammatory pathway ameliorates acute viral myocarditis in mice by regulating CD4+ T cell differentiation.

    abstract::Many studies have found that abnormalities in the proportion and differentiation of CD4+ T cells (Th cells) are closely related to the pathogenesis of viral myocarditis (VMC). Our previous research indicates that the cholinergic anti-inflammatory pathway (CAP) attenuates the inflammatory response of VMC and downregula...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2018.1482179

    authors: De-Pu Z,Li-Sha G,Guang-Yi C,Xiaohong G,Chao X,Cheng Z,Wen-Wu Z,Jia L,Jia-Feng L,Maoping C,Yue-Chun L

    更新日期:2018-01-01 00:00:00

  • Prolonged infection by Fonsecaea pedrosoi after antigenic co-stimulation at different sites in experimental murine chromoblastomycosis.

    abstract::In the present study, we examined prolonged infection after antigenic co-stimulation by inoculation of the fungus Fonsecaea pedrosoi at two different sites in three mouse strains (BALB/c, Swiss, and C57BL/6). Using this murine model of infection, we showed that antigen induction of infection at more than one site led ...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.4161/viru.1.1.9920

    authors: Machado AP,Silva MR,Fischman O

    更新日期:2010-01-01 00:00:00

  • The expression of gingival epithelial junctions in response to subgingival biofilms.

    abstract::Periodontitis is an infectious inflammatory disease that destroys the tooth-supporting tissues. It is caused by the formation of subgingival biofilms on the surface of the tooth. Characteristic bacteria associated with subgingival biofilms are the Gram-negative anaerobes Porphyromonas gingivalis, Tannerella forsythia ...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2015.1081731

    authors: Belibasakis GN,Kast JI,Thurnheer T,Akdis CA,Bostanci N

    更新日期:2015-01-01 00:00:00

  • Bloodstream infections in internal medicine.

    abstract::Bloodstream infections (BSI) carry a heavy burden of morbidity and mortality in modern internal medicine wards (IMW). These wards are often filled with elderly subjects with several risk factors for BSI, such as multiple comorbidities, polypharmacy, immunosuppression, and indwelling devices. Diagnosing BSI in such a s...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2016.1140296

    authors: Del Bono V,Giacobbe DR

    更新日期:2016-04-02 00:00:00

  • Enhancement of bacterial virulence by antibody neutralization of immune-activating toxins.

    abstract::Bacterial pathogens release a number of toxins that are able to form pores in target host cells, which can result in their destruction. Due to this property of this subgroup of toxins, they are considered virulence factors. A lesser known ability of these toxins when present at lower concentrations that are insufficie...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.1.5.12705

    authors: Yoong P

    更新日期:2010-09-01 00:00:00

  • Immunomodulatory properties of Brucella melitensis lipopolysaccharide determinants on mouse dendritic cells in vitro and in vivo.

    abstract::The lipopolysaccharide (LPS) is a major virulence factor of Brucella, a facultative intracellular pathogenic Gram-negative bacterium. Brucella LPS exhibits a low toxicity and its atypical structure was postulated to delay the host immune response, favouring the establishment of chronic disease. Here we carried out an ...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2017.1386831

    authors: Zhao Y,Hanniffy S,Arce-Gorvel V,Conde-Alvarez R,Oh S,Moriyón I,Mémet S,Gorvel JP

    更新日期:2018-01-01 00:00:00

  • The cleavage specificity of an IgA1 protease from Haemophilus influenzae.

    abstract::Bacterial IgA1 proteases are thought to be important virulence factors in respiratory tract infections. These proteolytic enzymes specifically cleave one of several post-proline peptide bonds within the hinge region of human immunoglobulin A1 (IgA1). Human IgA1 was cleaved with an IgA1 protease purified from an isolat...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.4161/viru.2.2.15401

    authors: Mistry DV,Stockley RA

    更新日期:2011-03-01 00:00:00

  • Targeting Candida albicans filamentation for antifungal drug development.

    abstract::Candida albicans remains the main etiological agent of candidiasis, as this otherwise normal commensal of humans is capable of causing active infection in immune- and medically-compromised patients. The high morbidity and mortality rates associated with candidiasis, coupled with the emergence of drug resistance demand...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2016.1197444

    authors: Vila T,Romo JA,Pierce CG,McHardy SF,Saville SP,Lopez-Ribot JL

    更新日期:2017-02-17 00:00:00

  • The role of inflammasome modulation in virulence.

    abstract::Pathogens frequently exist in an immunological balancing act with their host. Pathogens must not only replicate within a host but also transmit effectively between hosts to perpetuate their species. On the other hand, the host seeks to maintain homeostasis by clearing pathogens. The inflammasome is a multi-protein com...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.20266

    authors: Lupfer CR,Kanneganti TD

    更新日期:2012-05-01 00:00:00

  • Assessing immune aging in HIV-infected patients.

    abstract::Many of the alterations that affect innate and adaptive immune cell compartments in HIV-infected patients are reminiscent of the process of immune aging, characteristic of old age. These alterations define the immunological age of individuals and are likely to participate to the decline of immune competence with HIV d...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2016.1195536

    authors: Appay V,Sauce D

    更新日期:2017-07-04 00:00:00

  • Characteristics of asymptomatic COVID-19 infection and progression: A multicenter, retrospective study.

    abstract::Novel coronavirus disease 2019 (COVID-19), caused by novel coronavirus SARS-CoV-2, has spread globally since the end of 2019. Asymptomatic carriers are of great concern as they can undermine the interventions to stop the pandemic. However, there is limited information about the characteristics and outcomes of the asym...

    journal_title:Virulence

    pub_type: 杂志文章,多中心研究

    doi:10.1080/21505594.2020.1802194

    authors: Yu C,Zhou M,Liu Y,Guo T,Ou C,Yang L,Li Y,Li D,Hu X,Shuai L,Wang B,Zou Z

    更新日期:2020-12-01 00:00:00

  • Effector triggered immunity.

    abstract::Pathogenic bacteria produce virulence factors called effectors, which are important components of the infection process. Effectors aid in pathogenesis by facilitating bacterial attachment, pathogen entry into or exit from the host cell, immunoevasion, and immunosuppression. Effectors also have the ability to subvert h...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.29091

    authors: Rajamuthiah R,Mylonakis E

    更新日期:2014-01-01 00:00:00

  • Indirubin derivatives are potent and selective anti-Trypanosoma cruzi agents.

    abstract::Current treatment for combatting Chagas disease, a life-threatening illness caused by the kinetoplastid protozoan parasite Trypanosoma cruzi is inadequate, and thus the discovery of new antiparasitic compounds is of prime importance. Previous studies identified the indirubins, a class of ATP kinase inhibitors, as pote...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.1080/21505594.2018.1532242

    authors: Efstathiou A,Meira CS,Gaboriaud-Kolar N,Bastos TM,Rocha VPC,Vougogiannopoulou K,Skaltsounis AL,Smirlis D,Soares MBP

    更新日期:2018-01-01 00:00:00

  • Anti-endotoxin vaccines: back to the future.

    abstract::Gram-negative bacterial (GNB) infections are a leading cause of serious infections both in hospitals and the community. The mortality remains high despite potent antimicrobials and modern supportive care. In the last decade invasive GNB have become increasingly resistant to commonly used antibiotics, and attempts to i...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.4161/viru.25965

    authors: Cross AS

    更新日期:2014-01-01 00:00:00

  • pEntYN10 a plasmid of Escherichia coli O169:H41 associated with adherence and toxin production.

    abstract::In this issue of Virulence, Ban E et al. described the complete sequence of the pEntYN10 plasmid of Escherichia coli O169:H41. The plasmid has 182 coding sequences (CDs); among the identified CDs, some were identified as colonization factors (CFs), one was an enterotoxin and others were insertion sequences (IS). In th...

    journal_title:Virulence

    pub_type: 评论,社论

    doi:10.1080/21505594.2015.1104450

    authors: Navarro A

    更新日期:2015-01-01 00:00:00

  • Typing of Streptococcus pyogenes strains using the phage profiling method.

    abstract::We recently developed a method that allows fast differentiation between Streptococcus pyogenes (GAS) strains. The method named phage profiling (PP) is based on a simple assumption that a regular PCR reaction with Taq polymerase and relatively short elongation time is not able to yield long DNA fragment, such as ~40-50...

    journal_title:Virulence

    pub_type: 杂志文章

    doi:10.4161/viru.21887

    authors: Borek AL,Obszańska K,Hryniewicz W,Sitkiewicz I

    更新日期:2012-10-01 00:00:00

  • Current opinions on autophagy in pathogenicity of fungi.

    abstract::The interaction between pathogens and their host plants is a ubiquitous process. Some plant fungal pathogens can form a specific infection structure, such as an appressorium, which is formed by the accumulation of a large amount of glycerin and thereby the creation of an extremely high intracellular turgor pressure, w...

    journal_title:Virulence

    pub_type: 杂志文章,评审

    doi:10.1080/21505594.2018.1551011

    authors: Zhu XM,Li L,Wu M,Liang S,Shi HB,Liu XH,Lin FC

    更新日期:2019-12-01 00:00:00