Pseudomonas aeruginosa OprF plays a role in resistance to macrophage clearance during acute infection.

Abstract:

:While considered an extracellular pathogen, Pseudomonas aeruginosa has been reported to be engulfed by macrophages in cellular and animal models. However, the role of macrophages in P. aeruginosa clearance in vivo remains poorly studied. The major outer membrane porin OprF has been recently shown to be involved in P. aeruginosa fate within cultured macrophages and analysis of an oprF mutant may thus provide insights to better understand the relevance of this intramacrophage stage during infection. In the present study, we investigated for the first time the virulence of a P. aeruginosa oprF mutant in a vertebrate model that harbors functional macrophages, the zebrafish (Danio rerio) embryo, which offers powerful tools to address macrophage-pathogen interactions. We established that P. aeruginosa oprF mutant is attenuated in zebrafish embryos in a macrophage-dependent manner. Visualization and quantification of P. aeruginosa bacteria phagocytosed by macrophages after injection into closed cavities suggested that the attenuated phenotype of oprF mutant is not linked to higher macrophage recruitment nor better phagocytosis than wild-type strain. Using cultured macrophages, we showed an intramacrophage survival defect of P. aeruginosa oprF mutant, which is correlated with elevated association of bacteria with acidic compartments. Notably, treatment of embryos with bafilomycin, an inhibitor of acidification, increased the sensibility of embryos towards both wild-type and oprF mutant, and partially suppressed the attenuation of oprF mutant. Taken together, this work supports zebrafish embryo as state-of-the-art model to address in vivo the relevance of P. aeruginosa intramacrophage stage. Our results highlight the contribution of macrophages in the clearance of P. aeruginosa during acute infection and suggest that OprF protects P. aeruginosa against macrophage clearance by avoiding bacterial elimination in acidified phagosomes.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Moussouni M,Berry L,Sipka T,Nguyen-Chi M,Blanc-Potard AB

doi

10.1038/s41598-020-79678-0

subject

Has Abstract

pub_date

2021-01-11 00:00:00

pages

359

issue

1

issn

2045-2322

pii

10.1038/s41598-020-79678-0

journal_volume

11

pub_type

杂志文章
  • Co-immunization with DNA and protein mixture: a safe and efficacious immunotherapeutic strategy for Alzheimer's disease in PDAPP mice.

    abstract::Active immunotherapy targeting β-amyloid (Aβ) is the most promising strategy to prevent or treat Alzheimer's disease (AD). Based on pre-clinical studies and clinical trials, a safe and effective AD vaccine requires a delicate balance between providing therapeutically adequate anti-Aβ antibodies and eliminating or supp...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep07771

    authors: Liu S,Shi D,Wang HC,Yu YZ,Xu Q,Sun ZW

    更新日期:2015-01-14 00:00:00

  • DNA methylation of antisense noncoding RNA in the INK locus (ANRIL) is associated with coronary artery disease in a Chinese population.

    abstract::To explore the association between methylation of antisense non-coding RNA in the INK4 locus (ANRIL) and coronary artery disease (CAD) development. Methylation levels of ANRIL in 100 subjects with CAD and 100 controls were quantitatively analyzed using Sequenom MassARRAY. Kyoto Encyclopedia of Genes and Genomes (KEGG)...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-51921-3

    authors: Zhao CH,Cao HT,Zhang J,Jia QW,An FH,Chen ZH,Li LH,Wang LS,Ma WZ,Yang ZJ,Jia EZ

    更新日期:2019-10-25 00:00:00

  • Association between Serum Essential Metal Elements and the Risk of Schizophrenia in China.

    abstract::Numerous essential metal elements (EMEs) are necessary to maintain the proper function of human body. In this case-control study, we investigated the associations of 11 EMEs [Calcium (Ca), potassium (K), magnesium (Mg), sodium (Na), manganese (Mn), selenium (Se), cobalt (Co), Molybdenum (Mo), copper (Cu), zinc (Zn), a...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-66496-7

    authors: Ma J,Yan L,Guo T,Yang S,Liu Y,Xie Q,Ni D,Wang J

    更新日期:2020-07-03 00:00:00

  • Increased blood COASY DNA methylation levels a potential biomarker for early pathology of Alzheimer's disease.

    abstract::Early diagnosis of dementia including Alzheimer's disease (AD) is an urgent medical and welfare issue. However, to date, no simple biometrics have been available. We reported that blood DNA methylation levels of the COASY gene, which encodes coenzyme A synthase, were increased in individuals with AD and amnestic mild ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-69248-9

    authors: Kobayashi N,Shinagawa S,Niimura H,Kida H,Nagata T,Tagai K,Shimada K,Oka N,Shikimoto R,Noda Y,Nakajima S,Mimura M,Shigeta M,Kondo K

    更新日期:2020-07-22 00:00:00

  • Aggregation affects optical properties and photothermal heating of gold nanospheres.

    abstract::Laser heating of gold nanospheres (GNS) is increasingly prevalent in biomedical applications due to tunable optical properties that determine heating efficiency. Although many geometric parameters (i.e. size, morphology) can affect optical properties of individual GNS and their heating, no specific studies of how GNS ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-79393-w

    authors: Wang Y,Gao Z,Han Z,Liu Y,Yang H,Akkin T,Hogan CJ,Bischof JC

    更新日期:2021-01-13 00:00:00

  • Toward Enhanced State of Charge Estimation of Lithium-ion Batteries Using Optimized Machine Learning Techniques.

    abstract::State of charge (SOC) is a crucial index used in the assessment of electric vehicle (EV) battery storage systems. Thus, SOC estimation of lithium-ion batteries has been widely investigated because of their fast charging, long-life cycle, and high energy density characteristics. However, precise SOC assessment of lithi...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-61464-7

    authors: Hannan MA,Lipu MSH,Hussain A,Ker PJ,Mahlia TMI,Mansor M,Ayob A,Saad MH,Dong ZY

    更新日期:2020-03-13 00:00:00

  • Repeated surveying over 6 years reveals that fine-scale habitat variables are key to tropical mountain ant assemblage composition and functional diversity.

    abstract::High-altitude-adapted ectotherms can escape competition from dominant species by tolerating low temperatures at cooler elevations, but climate change is eroding such advantages. Studies evaluating broad-scale impacts of global change for high-altitude organisms often overlook the mitigating role of biotic factors. Yet...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-80077-8

    authors: Muluvhahothe MM,Joseph GS,Seymour CL,Munyai TC,Foord SH

    更新日期:2021-01-08 00:00:00

  • Alignment-free method for DNA sequence clustering using Fuzzy integral similarity.

    abstract::A larger amount of sequence data in private and public databases produced by next-generation sequencing put new challenges due to limitation associated with the alignment-based method for sequence comparison. So, there is a high need for faster sequence analysis algorithms. In this study, we developed an alignment-fre...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-40452-6

    authors: Saw AK,Raj G,Das M,Talukdar NC,Tripathy BC,Nandi S

    更新日期:2019-03-06 00:00:00

  • Magnetic inhomogeneity on a triangular lattice: the magnetic-exchange versus the elastic energy and the role of disorder.

    abstract::Inhomogeneity in the ground state is an intriguing, emergent phenomenon in magnetism. Recently, it has been observed in the magnetostructural channel of the geometrically frustrated α-NaMnO2, for the first time in the absence of active charge degrees of freedom. Here we report an in-depth numerical and local-probe exp...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep09272

    authors: Zorko A,Kokalj J,Komelj M,Adamopoulos O,Luetkens H,Arčon D,Lappas A

    更新日期:2015-03-19 00:00:00

  • Increased temperatures and elevated CO2 levels reduce the sensitivity of Conyza canadensis and Chenopodium album to glyphosate.

    abstract::Herbicides are the most commonly used means of controlling weeds. Recently, there has been growing concern over the potential impacts of global climate change, specifically, increasing temperatures and elevated carbon dioxide (CO2) concentrations, on the sensitivity of weeds to herbicides. Here, glyphosate response of...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-38729-x

    authors: Matzrafi M,Brunharo C,Tehranchian P,Hanson BD,Jasieniuk M

    更新日期:2019-02-18 00:00:00

  • Chemical-free and synergistic interaction of ultrasound combined with plasma-activated water (PAW) to enhance microbial inactivation in chicken meat and skin.

    abstract::In general, the poultry industry uses 0.5-1 ppm chlorine solution in the meat sanitization process. However, chlorine can react with organic material and produce halogenated organic compounds, notably chloroform, which causes bladder and rectal cancer in humans. For this reason, many industries try to avoid chlorine. ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-58199-w

    authors: Royintarat T,Choi EH,Boonyawan D,Seesuriyachan P,Wattanutchariya W

    更新日期:2020-01-31 00:00:00

  • High Temperature Extends the Range of Size Discrimination of Nonionic Polymers by a Biological Nanopore.

    abstract::We explore the effect of temperature on the interaction of polydisperse mixtures of nonionic poly(ethylene glycol) (PEG) polymers of different average molar masses with the biological nanopore α-hemolysin. In contrast with what has been previously observed with various nanopores and analytes, we find that, for PEGs la...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep38675

    authors: Piguet F,Ouldali H,Discala F,Breton MF,Behrends JC,Pelta J,Oukhaled A

    更新日期:2016-12-07 00:00:00

  • The Us2 Gene Product of Herpes Simplex Virus 2 modulates NF-κB activation by targeting TAK1.

    abstract::HSV-2 is one of the most common sexually transmitted pathogens worldwide and HSV-2 infection triggers cytokine and chemokine production. However, little is known about which HSV-2 genes engage in the regulation of NF-κB signaling and what mechanisms are involved. In a screen of the unique short (Us) regions of HSV-2, ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-08856-4

    authors: Lu X,Huang C,Zhang Y,Lin Y,Wang X,Li Q,Liu S,Tang J,Zhou L

    更新日期:2017-08-21 00:00:00

  • Population co-divergence in common cuttlefish (Sepia officinalis) and its dicyemid parasite in the Mediterranean Sea.

    abstract::Population structure and biogeography of marine organisms are formed by different drivers than in terrestrial organisms. Yet, very little information is available even for common marine organisms and even less for their associated parasites. Here we report the first analysis of population structure of both a cephalopo...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-50555-9

    authors: Drábková M,Jachníková N,Tyml T,Sehadová H,Ditrich O,Myšková E,Hypša V,Štefka J

    更新日期:2019-10-04 00:00:00

  • Modelling predictive gender- and gestation-specific weight reference centiles for preterm infants using a population-based cohort study.

    abstract::We aimed to model longitudinal data to create predictive growth charts for weight in preterm infants from birth till discharge, that took into account the differing growth rates post-birth when compared to in-utero growth and therefore was more representative of the data than the UK1990 reference charts. Data from bir...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-60895-6

    authors: Watkins WJ,Farewell D,Banerjee S,Nasef H,James A,Chakraborty M

    更新日期:2020-03-04 00:00:00

  • Nanodiamond landmarks for subcellular multimodal optical and electron imaging.

    abstract::There is a growing need for biolabels that can be used in both optical and electron microscopies, are non-cytotoxic, and do not photobleach. Such biolabels could enable targeted nanoscale imaging of sub-cellular structures, and help to establish correlations between conjugation-delivered biomolecules and function. Her...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep02668

    authors: Zurbuchen MA,Lake MP,Kohan SA,Leung B,Bouchard LS

    更新日期:2013-01-01 00:00:00

  • Maternal stress or sleep during pregnancy are not reflected on telomere length of newborns.

    abstract::Telomeres play an important role in maintaining chromosomal integrity. With each cell division, telomeres are shortened and leukocyte telomere length (LTL) has therefore been considered a marker for biological age. LTL is associated with various lifetime stressors and health-related outcomes. Transgenerational effects...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-71000-2

    authors: Ämmälä AJ,Vitikainen EIK,Hovatta I,Paavonen J,Saarenpää-Heikkilä O,Kylliäinen A,Pölkki P,Porkka-Heiskanen T,Paunio T

    更新日期:2020-08-19 00:00:00

  • Spatially Controlled Surface Modification of Porous Silicon for Sustained Drug Delivery Applications.

    abstract::A new and facile approach to selectively functionalize the internal and external surfaces of porous silicon (pSi) for drug delivery applications is reported. To provide a surface that is suitable for sustained drug release of the hydrophobic cancer chemotherapy drug camptothecin (CPT), the internal surfaces of pSi fil...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-37750-w

    authors: Zhang DX,Yoshikawa C,Welch NG,Pasic P,Thissen H,Voelcker NH

    更新日期:2019-02-04 00:00:00

  • Strongly Confined Spoof Surface Plasmon Polaritons Waveguiding Enabled by Planar Staggered Plasmonic Waveguides.

    abstract::We demonstrate a novel route to achieving highly efficient and strongly confined spoof surface plasmon polaritons (SPPs) waveguides at subwavelength scale enabled by planar staggered plasmonic waveguides (PSPWs). The structure of these new waveguides consists of an ultrathin metallic strip with periodic subwavelength ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep38528

    authors: Ye L,Xiao Y,Liu Y,Zhang L,Cai G,Liu QH

    更新日期:2016-12-05 00:00:00

  • Benzo(a)pyrene in Cigarette Smoke Enhances HIV-1 Replication through NF-κB Activation via CYP-Mediated Oxidative Stress Pathway.

    abstract::Smoking aggravates HIV-1 pathogenesis and leads to decreased responses to antiretroviral therapy. In this study, we aim to find a molecular mechanism that would explain smoking-induced HIV-1 replication. Benzo(a)pyrene (BaP), a major carcinogen in cigarette, requires metabolic activation through cytochrome P450s (CYPs...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-28500-z

    authors: Ranjit S,Sinha N,Kodidela S,Kumar S

    更新日期:2018-07-10 00:00:00

  • Magnetic properties of six-legged spin-1 nanotube in presence of a longitudinal applied field.

    abstract::In this paper, we investigate the magnetic behavior of a single-walled hexagonal spin-1 Ising nanotube by using the effective field theory (EFT) with correlations and the differential operator technique (DOT). The system consists of six long legs distributed parallel to each other on a hexagonal basis. Within each cha...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-48833-7

    authors: ElMaddahi Z,El Hafidi MY,El Hafidi M

    更新日期:2019-08-26 00:00:00

  • Reversal of aberrant cancer methylome and transcriptome upon direct reprogramming of lung cancer cells.

    abstract::Recent reports on direct reprogramming of cancer cells (iPCs) which results in reduced tumorigenic potential has attributed the importance of epigenetics in tumorigenesis, but lacked genome-wide analysis. Here we describe successful generation of iPCs from non-small cell lung cancer (NSCLC) cell lines. Following repro...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep00592

    authors: Mahalingam D,Kong CM,Lai J,Tay LL,Yang H,Wang X

    更新日期:2012-01-01 00:00:00

  • Sensory afferent segregation in three-eared frogs resemble the dominance columns observed in three-eyed frogs.

    abstract::The formation of proper sensory afferent connections during development is essential for brain function. Activity-based competition is believed to drive ocular dominance columns (ODC) in mammals and in experimentally-generated three-eyed frogs. ODC formation is thus a compromise of activity differences between two eye...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep08338

    authors: Elliott KL,Houston DW,Fritzsch B

    更新日期:2015-02-09 00:00:00

  • Post-treatment levels of plasma 25- and 1,25-dihydroxy vitamin D and mortality in men with aggressive prostate cancer.

    abstract::Vitamin D may reduce mortality from prostate cancer (PC). We examined the associations of post-treatment plasma 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D concentrations with PC mortality. Participants were PC cases from the New South Wales Prostate Cancer Care. All contactable and consenting participants, at 4.9...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-020-62182-w

    authors: Nair-Shalliker V,Bang A,Egger S,Clements M,Gardiner RA,Kricker A,Seibel MJ,Chambers SK,Kimlin MG,Armstrong BK,Smith DP

    更新日期:2020-05-08 00:00:00

  • Analysis of the genetic association between IL27 variants and coronary artery disease in a Chinese Han population.

    abstract::Interleukin-27 (IL-27) is an important cytokine in inflammatory diseases, including coronary artery disease (CAD). To explore the precise role of IL-27 in CAD, we investigated the genetic association between IL27 and CAD in the GeneID Chinese Han population. A two-stage case control association analysis was performed ...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/srep25782

    authors: Fan Q,Nie S,Li S,Liao Y,Zhang H,Zha L,Wang F,Tang T,Xia N,Xu C,Wang P,Xie T,Xie J,Lu Q,Li Q,Qian J,Li B,Wu G,Wu Y,Yang Y,Wang QK,Tu X,Cheng X

    更新日期:2016-05-12 00:00:00

  • Spindle cell sarcoma: a SEER population-based analysis.

    abstract::Due to the substantial limitation of study population, Spindle cell sarcoma (SCS) was unexplored comprehensively. In this study, we investigated the clinical characteristics and disease specific prognostic factors of SCS. 3299 SCS cases were identified and extracted from Surveillance, Epidemiology, and End Results (SE...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-23145-4

    authors: Feng L,Wang M,Yibulayin F,Zhang H,Yang YL,Ren F,Wushou A

    更新日期:2018-03-22 00:00:00

  • Divergent roles for Clusterin in Lung Injury and Repair.

    abstract::Lung fibrosis is an unabated wound healing response characterized by the loss and aberrant function of lung epithelial cells. Herein, we report that extracellular Clusterin promoted epithelial cell apoptosis whereas intracellular Clusterin maintained epithelium viability during lung repair. Unlike normal and COPD lung...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-017-15670-5

    authors: Habiel DM,Camelo A,Espindola M,Burwell T,Hanna R,Miranda E,Carruthers A,Bell M,Coelho AL,Liu H,Pilataxi F,Clarke L,Grant E,Lewis A,Moore B,Knight DA,Hogaboam CM,Murray LA

    更新日期:2017-11-13 00:00:00

  • Species-Specific Marker Discovery in Tilapia.

    abstract::Tilapias (family Cichlidae) are of importance in aquaculture and fisheries. Hybridisation and introgression are common within tilapia genera but are difficult to analyse due to limited numbers of species-specific genetic markers. We tested the potential of double digested restriction-site associated DNA (ddRAD) sequen...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-48339-2

    authors: Syaifudin M,Bekaert M,Taggart JB,Bartie KL,Wehner S,Palaiokostas C,Khan MGQ,Selly SC,Hulata G,D'Cotta H,Baroiller JF,McAndrew BJ,Penman DJ

    更新日期:2019-09-10 00:00:00

  • Endometrial Mesenchymal Stem/Stromal Cells Modulate the Macrophage Response to Implanted Polyamide/Gelatin Composite Mesh in Immunocompromised and Immunocompetent Mice.

    abstract::The immunomodulatory properties of human endometrial mesenchymal stem cells (eMSC) have not been well characterised. Initial studies showed that eMSC modulated the chronic inflammatory response to a non-degradable polyamide/gelatin mesh in a xenogeneic rat skin wound repair model, but the mechanism remains unclear. In...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-018-24919-6

    authors: Darzi S,Deane JA,Nold CA,Edwards SE,Gough DJ,Mukherjee S,Gurung S,Tan KS,Vashi AV,Werkmeister JA,Gargett CE

    更新日期:2018-04-26 00:00:00

  • Early weaning increases anxiety via brain-derived neurotrophic factor signaling in the mouse prefrontal cortex.

    abstract::Deprivation of maternal care during early development markedly affects emotional development, but the underlying neuromolecular mechanisms are not fully understood. In a mouse model of disrupted mother-infant relationship, early weaning causes long-term impacts on pups to exhibit increased corticosterone secretion, an...

    journal_title:Scientific reports

    pub_type: 杂志文章

    doi:10.1038/s41598-019-40530-9

    authors: Kikusui T,Kanbara N,Ozaki M,Hirayama N,Ida K,Tokita M,Tanabe N,Mitsuyama K,Abe H,Yoshida M,Nagasawa M,Mogi K

    更新日期:2019-03-08 00:00:00