Particle-size dependent effects in the Balb/c murine model of inhalational melioidosis.

Abstract:

:Deposition of Burkholderia pseudomallei within either the lungs or nasal passages of the Balb/c murine model resulted in different infection kinetics. The infection resulting from the inhalation of B. pseudomallei within a 12 μm particle aerosol was prolonged compared to a 1 μm particle aerosol with a mean time-to-death (MTD) of 174.7 ± 14.9 h and 73.8 ± 11.3 h, respectively. Inhalation of B. pseudomallei within 1 μm or 12 μm particle aerosols resulted in a median lethal dose (MLD) of 4 and 12 cfu, respectively. The 12 μm particle inhalational infection was characterized by a marked involvement of the nasal mucosa and extension of bacterial colonization and inflammatory lesions from the olfactory epithelium through the olfactory nerves (or tracts) to the olfactory bulb (100%), culminating in abscessation of the brain (33%). Initial involvement of the upper respiratory tract lymphoid tissues (nasal-associated lymphoid tissue (NALT) and cervical lymph nodes) was observed in both the 1 and 12 μm particle inhalational infections (80-85%). Necrotising alveolitis and bronchiolitis were evident in both inhalational infections, however, lung pathology was greater after inhalation of the 1 μm particle aerosol with pronounced involvement of the mediastinal lymph node (50%). Terminal disease was characterized by bacteraemia in both inhalational infections with dissemination to the spleen, liver, kidneys, and thymus. Treatment with co-trimoxazole was more effective than treatment with doxycycline irrespective of the size of the particles inhaled. Doxycycline was more effective against the 12 μm particle inhalational infection as evidenced by increased time to death. However, both treatment regimes exhibited significant relapse when therapy was discontinued with massive enlargement and abscessation of the lungs, spleen, and cervical lymph nodes observed.

authors

Thomas RJ,Davies C,Nunez A,Hibbs S,Eastaugh L,Harding S,Jordan J,Barnes K,Oyston P,Eley S

doi

10.3389/fcimb.2012.00101

subject

Has Abstract

pub_date

2012-07-23 00:00:00

pages

101

issn

2235-2988

journal_volume

2

pub_type

杂志文章
  • Population Genomics of Francisella tularensis subsp. holarctica and its Implication on the Eco-Epidemiology of Tularemia in Switzerland.

    abstract::Whole genome sequencing (WGS) methods provide new possibilities in the field of molecular epidemiology. This is particularly true for monomorphic organisms where the discriminatory power of traditional methods (e.g., restriction enzyme length polymorphism typing, multi locus sequence typing etc.) is inadequate to eluc...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2018.00089

    authors: Wittwer M,Altpeter E,Pilo P,Gygli SM,Beuret C,Foucault F,Ackermann-Gäumann R,Karrer U,Jacob D,Grunow R,Schürch N

    更新日期:2018-03-22 00:00:00

  • Cytological and Histopathological Spectrum of Histoplasmosis: 15 Years of Experience in French Guiana.

    abstract:Background:Disseminated histoplasmosis remains a major killer of immunocompromised patients in Latin America. Cytological and histological methods are usually present in most hospitals and may represent a precious diagnostic method. We report 15 years of experience of the department of pathology of the Centre Hospitali...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.591974

    authors: Drak Alsibai K,Couppié P,Blanchet D,Adenis A,Epelboin L,Blaizot R,Louvel D,Djossou F,Demar M,Nacher M

    更新日期:2020-10-29 00:00:00

  • Chronic Toxoplasma gondii Infection Exacerbates Secondary Polymicrobial Sepsis.

    abstract::Sepsis is a severe syndrome that arises when the host response to an insult is exacerbated, leading to organ failure and frequently to death. How a chronic infection that causes a prolonged Th1 expansion affects the course of sepsis is unknown. In this study, we showed that mice chronically infected with Toxoplasma go...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2017.00116

    authors: Souza MC,Fonseca DM,Kanashiro A,Benevides L,Medina TS,Dias MS,Andrade WA,Bonfá G,Silva MAB,Gozzi A,Borges MC,Gazzinelli RT,Alves-Filho JC,Cunha FQ,Silva JS

    更新日期:2017-04-07 00:00:00

  • Genetic Transformation of a C. trachomatis Ocular Isolate With the Functional Tryptophan Synthase Operon Confers an Indole-Rescuable Phenotype.

    abstract::Chlamydia trachomatis is the leading cause of preventable blindness and the most common bacterial sexually transmitted infection. Different strains are associated with ocular or urogenital infections, and a proposed mechanism that may explain this tissue tropism is the active tryptophan biosynthesis pathway encoded by...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2018.00434

    authors: O'Neill CE,Skilton RJ,Pearson SA,Filardo S,Andersson P,Clarke IN

    更新日期:2018-12-14 00:00:00

  • Influence of the tryptophan-indole-IFNγ axis on human genital Chlamydia trachomatis infection: role of vaginal co-infections.

    abstract::The natural history of genital Chlamydia trachomatis infections can vary widely; infections can spontaneously resolve but can also last from months to years, potentially progressing to cause significant pathology. The host and bacterial factors underlying this wide variation are not completely understood, but emphasiz...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2014.00072

    authors: Aiyar A,Quayle AJ,Buckner LR,Sherchand SP,Chang TL,Zea AH,Martin DH,Belland RJ

    更新日期:2014-06-03 00:00:00

  • Molecular Characterization of a Prevalent Ribocluster of Methicillin-Sensitive Staphylococcus aureus from Orthopedic Implant Infections. Correspondence with MLST CC30.

    abstract::Staphylococcus aureus is the leading etiologic agent of orthopedic implant infections. Here a ribocluster of 27 S. aureus strains underwent further molecular characterization and subtyping by multilocus sequence typing (MLST) and spa-typing. This cluster had been detected by automated ribotyping (with the EcoRI restri...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2016.00008

    authors: Montanaro L,Ravaioli S,Ruppitsch W,Campoccia D,Pietrocola G,Visai L,Speziale P,Allerberger F,Arciola CR

    更新日期:2016-02-16 00:00:00

  • FcpB Is a Surface Filament Protein of the Endoflagellum Required for the Motility of the Spirochete Leptospira.

    abstract::The spirochete endoflagellum is a unique motility apparatus among bacteria. Despite its critical importance for pathogenesis, the full composition of the flagellum remains to be determined. We have recently reported that FcpA is a novel flagellar protein and a major component of the sheath of the filament of the spiro...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2018.00130

    authors: Wunder EA Jr,Slamti L,Suwondo DN,Gibson KH,Shang Z,Sindelar CV,Trajtenberg F,Buschiazzo A,Ko AI,Picardeau M

    更新日期:2018-05-08 00:00:00

  • Chromosomal islands of Streptococcus pyogenes and related streptococci: molecular switches for survival and virulence.

    abstract::Streptococcus pyogenes is a significant pathogen of humans, annually causing over 700,000,000 infections and 500,000 deaths. Virulence in S. pyogenes is closely linked to mobile genetic elements like phages and chromosomal islands (CI). S. pyogenes phage-like chromosomal islands (SpyCI) confer a complex mutator phenot...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2014.00109

    authors: Nguyen SV,McShan WM

    更新日期:2014-08-12 00:00:00

  • The Anti-colitis Effect of Schisandra chinensis Polysaccharide Is Associated With the Regulation of the Composition and Metabolism of Gut Microbiota.

    abstract::Background: The pathogenesis of inflammatory bowel disease (IBD) is linked to an intricate association of environmental, microbial, and host-related factors. Polysaccharide affects host immunity by regulating the composition and metabolism of gut microbiota is the common mechanism of disease resistance. However, the e...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.519479

    authors: Su L,Mao C,Wang X,Li L,Tong H,Mao J,Ji,Lu T,Hao M,Huang Z,Fei C,Zhang K,Yan G

    更新日期:2020-10-21 00:00:00

  • Poor Unstable Midgut Microbiome of Hard Ticks Contrasts With Abundant and Stable Monospecific Microbiome in Ovaries.

    abstract::Culture-independent metagenomic methodologies have enabled detection and identification of microorganisms in various biological systems and often revealed complex and unknown microbiomes. In many organisms, the microbiome outnumbers the host cells and greatly affects the host biology and fitness. Ticks are hematophago...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.00211

    authors: Guizzo MG,Neupane S,Kucera M,Perner J,Frantová H,da Silva Vaz I,de Oliveira PL,Kopacek P,Zurek L

    更新日期:2020-05-08 00:00:00

  • Exosome-Transmitted miR-25 Induced by H. pylori Promotes Vascular Endothelial Cell Injury by Targeting KLF2.

    abstract::Background: Increasing evidence has shown that Helicobacter pylori is associated with coronary heart disease (CHD); however, the underlying mechanism remains unclear. Methods: The expression of miR-25 and mRNAs was measured using qRT-PCR. Protein levels were detected using western blotting and exosomes were assessed w...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2019.00366

    authors: Li N,Liu SF,Dong K,Zhang GC,Huang J,Wang ZH,Wang TJ

    更新日期:2019-10-29 00:00:00

  • Comparative Genomics of Mycoplasma bovis Strains Reveals That Decreased Virulence with Increasing Passages Might Correlate with Potential Virulence-Related Factors.

    abstract::Mycoplasma bovis is an important cause of bovine respiratory disease worldwide. To understand its virulence mechanisms, we sequenced three attenuated M. bovis strains, P115, P150, and P180, which were passaged in vitro 115, 150, and 180 times, respectively, and exhibited progressively decreasing virulence. Comparative...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2017.00177

    authors: Rasheed MA,Qi J,Zhu X,Chenfei H,Menghwar H,Khan FA,Zhao G,Zubair M,Hu C,Chen Y,Chen H,Guo A

    更新日期:2017-05-11 00:00:00

  • Targeting the Type II Secretion System: Development, Optimization, and Validation of a High-Throughput Screen for the Identification of Small Molecule Inhibitors.

    abstract::Nosocomial pathogens that develop multidrug resistance present an increasing problem for healthcare facilities. Due to its rapid rise in antibiotic resistance, Acinetobacter baumannii is one of the most concerning gram-negative species. A. baumannii typically infects immune compromised individuals resulting in a varie...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2017.00380

    authors: Waack U,Johnson TL,Chedid K,Xi C,Simmons LA,Mobley HLT,Sandkvist M

    更新日期:2017-08-28 00:00:00

  • Cellular Aspects of Shigella Pathogenesis: Focus on the Manipulation of Host Cell Processes.

    abstract::Shigella is a Gram-negative bacterium that is responsible for shigellosis. Over the years, the study of Shigella has provided a greater understanding of how the host responds to bacterial infection, and how bacteria have evolved to effectively counter the host defenses. In this review, we provide an update on some of ...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2016.00038

    authors: Killackey SA,Sorbara MT,Girardin SE

    更新日期:2016-03-31 00:00:00

  • Extracellular Vesicles in Fungi: Past, Present, and Future Perspectives.

    abstract::Extracellular vesicles (EVs) have garnered much interest in the cell biology and biomedical research fields. Many studies have reported the existence of EVs in all types of living cells, including in fifteen different fungal genera. EVs play diverse biological roles, from the regulation of physiological events and res...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2020.00346

    authors: Rizzo J,Rodrigues ML,Janbon G

    更新日期:2020-07-15 00:00:00

  • Pathogen intelligence.

    abstract::Different species inhabit different sensory worlds and thus have evolved diverse means of processing information, learning and memory. In the escalated arms race with host defense, each pathogenic bacterium not only has evolved its individual cellular sensing and behavior, but also collective sensing, interbacterial c...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2014.00008

    authors: Steinert M

    更新日期:2014-01-31 00:00:00

  • Modulating Host Signaling Pathways to Promote Resistance to Infection by Candida albicans.

    abstract::Candida albicans is a common human fungal pathogen capable of causing serious systemic infections that can progress to become lethal. Current therapeutic approaches have limited effectiveness, especially once a systemic infection is established, in part due to the lack of an effective immune response. Boosting the imm...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2017.00481

    authors: Carpino N,Naseem S,Frank DM,Konopka JB

    更新日期:2017-11-21 00:00:00

  • Cold-Shock Domain Family Proteins (Csps) Are Involved in Regulation of Virulence, Cellular Aggregation, and Flagella-Based Motility in Listeria monocytogenes.

    abstract::Cold shock-domain family proteins (Csps) are highly conserved nucleic acid binding proteins regulating the expression of various genes including those involved in stress resistance and virulence in bacteria. We show here that Csps are involved in virulence, cell aggregation and flagella-based extracellular motility of...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2017.00453

    authors: Eshwar AK,Guldimann C,Oevermann A,Tasara T

    更新日期:2017-10-26 00:00:00

  • Host Porphobilinogen Deaminase Deficiency Confers Malaria Resistance in Plasmodium chabaudi but Not in Plasmodium berghei or Plasmodium falciparum During Intraerythrocytic Growth.

    abstract::An important component in host resistance to malaria infection are inherited mutations that give rise to abnormalities and deficiencies in erythrocyte proteins and enzymes. Understanding how such mutations confer protection against the disease may be useful for developing new treatment strategies. A mouse ENU-induced ...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.00464

    authors: Schnider CB,Yang H,Starrs L,Ehmann A,Rahimi F,Di Pierro E,Graziadei G,Matthews K,De Koning-Ward T,Bauer DC,Foote SJ,Burgio G,McMorran BJ

    更新日期:2020-09-03 00:00:00

  • Characterization of interactions between inclusion membrane proteins from Chlamydia trachomatis.

    abstract::Chlamydiae are obligate intracellular pathogens of eukaryotes. The bacteria grow in an intracellular vesicle called an inclusion, the membrane of which is heavily modified by chlamydial proteins called Incs (Inclusion membrane proteins). Incs represent 7-10% of the genomes of Chlamydia and, given their localization at...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2015.00013

    authors: Gauliard E,Ouellette SP,Rueden KJ,Ladant D

    更新日期:2015-02-11 00:00:00

  • The Mycobacterium avium ssp. paratuberculosis specific mptD gene is required for maintenance of the metabolic homeostasis necessary for full virulence in mouse infections.

    abstract::Mycobacterium avium subspecies paratuberculosis (MAP) causes Johne's disease, a chronic granulomatous enteritis in ruminants. Furthermore, infections of humans with MAP have been reported and a possible association with Crohn's disease and diabetes type I is currently discussed. MAP owns large sequence polymorphisms (...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2014.00110

    authors: Meißner T,Eckelt E,Basler T,Meens J,Heinzmann J,Suwandi A,Oelemann WM,Trenkamp S,Holst O,Weiss S,Bunk B,Spröer C,Gerlach GF,Goethe R

    更新日期:2014-08-14 00:00:00

  • Genome-Wide Transcriptional Start Site Mapping and sRNA Identification in the Pathogen Leptospira interrogans.

    abstract::Leptospira are emerging zoonotic pathogens transmitted from animals to humans typically through contaminated environmental sources of water and soil. Regulatory pathways of pathogenic Leptospira spp. underlying the adaptive response to different hosts and environmental conditions remains elusive. In this study, we pro...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2017.00010

    authors: Zhukova A,Fernandes LG,Hugon P,Pappas CJ,Sismeiro O,Coppée JY,Becavin C,Malabat C,Eshghi A,Zhang JJ,Yang FX,Picardeau M

    更新日期:2017-01-19 00:00:00

  • Systems Biology Approaches for Therapeutics Development Against COVID-19.

    abstract::Understanding the systems biology approaches for promoting the development of new therapeutic drugs is attaining importance nowadays. The threat of COVID-19 outbreak needs to be vanished for global welfare, and every section of research is focusing on it. There is an opportunity for finding new, quick, and accurate to...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2020.560240

    authors: Jaiswal S,Kumar M,Mandeep,Sunita,Singh Y,Shukla P

    更新日期:2020-10-28 00:00:00

  • Interspecies Interactions Between Streptococcus Mutans and Streptococcus Agalactiae in vitro.

    abstract::Streptococcus mutans is an oral species closely associated with dental caries. As an early oral colonizer, S. mutans utilizes interspecies coaggregation to promote the colonization of subsequent species and affect polymicrobial pathogenesis. Previous studies have confirmed several adhering partner species of S. mutans...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.00344

    authors: Liu T,Liu J,Liu J,Yang R,Lu X,He X,Shi W,Guo L

    更新日期:2020-07-07 00:00:00

  • Lipids in Entamoeba histolytica: Host-Dependence and Virulence Factors.

    abstract::Lipids are essential players in parasites pathogenesis. In particular, the highly phagocytic trophozoites of Entamoeba histolytica, the causative agent of amoebiasis, exhibit a dynamic membrane fusion and fission, in which lipids strongly participate; particularly during the overstated motility of the parasite to reac...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2020.00075

    authors: Castellanos-Castro S,Bolaños J,Orozco E

    更新日期:2020-03-10 00:00:00

  • Curcumin Blocks Cytotoxicity of Enteroaggregative and Enteropathogenic Escherichia coli by Blocking Pet and EspC Proteolytic Release From Bacterial Outer Membrane.

    abstract::Pet and EspC are toxins secreted by enteroaggregative (EAEC) and enteropathogenic (EPEC) diarrheagenic Escherichia coli pathotypes, respectively. Both toxins are members of the Serine Protease Autotransporters of Enterobacteriaceae (SPATEs) family. Pet and EspC are important virulence factors that produce cytotoxic an...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2019.00334

    authors: Sanchez-Villamil JI,Navarro-Garcia F,Castillo-Romero A,Gutierrez-Gutierrez F,Tapia D,Tapia-Pastrana G

    更新日期:2019-09-25 00:00:00

  • Rapid Detection of Nocardia by Next-Generation Sequencing.

    abstract::In this original study, we retrospectively reviewed the cases of nocardiosis diagnosed through culture and next-generation sequencing (NGS) methods between 2014 and 2018 in Huashan Hospital and found out that the latter way can not only improve the detection rate of Nocardia spp. but also greatly reduce the turnaround...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.00013

    authors: Weng SS,Zhang HY,Ai JW,Gao Y,Liu YY,Xu B,Zhang WH

    更新日期:2020-02-18 00:00:00

  • Elucidation of Cellular Responses in Non-human Primates With Chronic Schistosomiasis Followed by Praziquantel Treatment.

    abstract::For decades, mass drug treatment with praziquantel (PZQ) has been utilized to treat schistosomiasis, yet reinfection and the risk of drug resistance are among the various factors precluding successful elimination of schistosomiasis. Tractable models that replicate "real world" field conditions are crucial to effective...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.00057

    authors: Melkus MW,Le L,Siddiqui AJ,Molehin AJ,Zhang W,Lazarus S,Siddiqui AA

    更新日期:2020-02-24 00:00:00

  • Switching Lifestyles Is an in vivo Adaptive Strategy of Bacterial Pathogens.

    abstract::Gram-positive and Gram-negative pathogens exist as planktonic cells only at limited times during their life cycle. In response to environmental signals such as temperature, pH, osmolality, and nutrient availability, pathogenic bacteria can adopt varied cellular fates, which involves the activation of virulence gene pr...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fcimb.2019.00421

    authors: Desai SK,Kenney LJ

    更新日期:2019-12-11 00:00:00

  • Functional Inhibition of Natural Killer Cells in a BALB/c Mouse Model of Liver Fibrosis Induced by Schistosoma japonicum Infection.

    abstract:Background and Aims:Schistosomiasis japonica is a widespread human zoonotic disease, and in China, there are many patients with schistosomiasis suffering from liver fibrosis. Many studies have shown that natural killer (NK) cells could reduce the progression of hepatic fibrosis by directly killing hepatic stellate cell...

    journal_title:Frontiers in cellular and infection microbiology

    pub_type: 杂志文章

    doi:10.3389/fcimb.2020.598987

    authors: Hu Y,Wang X,Wei Y,Liu H,Zhang J,Shen Y,Cao J

    更新日期:2020-11-19 00:00:00