Abstract:
:The black yeast Exophiala dermatitidis is a widespread polyextremophile and human pathogen, that is found in extreme natural habitats and man-made environments such as dishwashers. It can cause various diseases ranging from phaeohyphomycosis and systemic infections, with fatality rates reaching 40%. While the number of cases in immunocompromised patients are increasing, knowledge of the infections, virulence factors and host response is still scarce. In this study, for the first time, an artificial infection of an ex-vivo skin model with Exophiala dermatitidis was monitored microscopically and transcriptomically. Results show that Exophiala dermatitidis is able to actively grow and penetrate the skin. The analysis of the genomic and RNA-sequencing data delivers a rich and complex transcriptome where circular RNAs, fusion transcripts, long non-coding RNAs and antisense transcripts are found. Changes in transcription strongly affect pathways related to nutrients acquisition, energy metabolism, cell wall, morphological switch, and known virulence factors. The L-Tyrosine melanin pathway is specifically upregulated during infection. Moreover the production of secondary metabolites, especially alkaloids, is increased. Our study is the first that gives an insight into the complexity of the transcriptome of Exophiala dermatitidis during artificial skin infections and reveals new virulence factors.
journal_name
Front Cell Infect Microbioljournal_title
Frontiers in cellular and infection microbiologyauthors
Poyntner C,Blasi B,Arcalis E,Mirastschijski U,Sterflinger K,Tafer Hdoi
10.3389/fcimb.2016.00136subject
Has Abstractpub_date
2016-10-24 00:00:00pages
136issn
2235-2988journal_volume
6pub_type
杂志文章abstract::Meningitis, the inflammation of the protective membrane surrounding the brain and spinal cord (known as meninges), is a condition associated with high mortality rates and permanent neurological sequelae in a significant proportion of survivors. The opportunistic pathogen Streptococcus pneumoniae (SPN/pneumococcus) is ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.590682
更新日期:2020-11-03 00:00:00
abstract::Sepsis is a life-threatening health condition caused by infectious pathogens of the respiratory tract, and accounts for 28-50% of annual deaths in the US alone. Current treatment regimen advocates the use of corticosteroids as adjunct treatment with antibiotics, for their broad inhibitory effect on the activity and pr...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00263
更新日期:2017-06-22 00:00:00
abstract::During chronic human immunodeficiency virus type 1 (HIV-1) infection, upregulation of inhibitory molecules contributes to effector cell dysfunction and exhaustion. This, in combination with the ability of HIV-1 to reside dormant in cellular reservoirs and escape immune recognition, makes the pathway to HIV-1 cure part...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.00175
更新日期:2020-05-05 00:00:00
abstract::Vibrio alginolyticus is a major cause of Vibriosis in farmed marine aquatic animals and has caused large economic losses to the Asian aquaculture industry in recent years. Therefore, it is necessary to control V. alginolyticus effectively. The virulence mechanism of V. alginolyticus, the Type III secretion system (T3S...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00183
更新日期:2020-04-28 00:00:00
abstract::Burkholderia cenocepacia is an opportunistic respiratory pathogen of individuals with cystic fibrosis (CF). Some strains of B. cenocepacia are highly transmissible and resistant to almost all antibiotics. Approximately one-third of B. cenocepacia infected CF patients go on to develop fatal "cepacia syndrome." During t...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2011.00025
更新日期:2012-01-11 00:00:00
abstract::Toxoplasma gondii has been found to infect almost all warm-blooded animals, including humans. In this study, a total of 3,275 human serum samples were collected from hospitals in five provinces of China. About 5.13% (168/3,275) (95% CI, 4.42-5.94) of the serum samples tested positive for T. gondii IgG antibody by a mo...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00302
更新日期:2020-06-23 00:00:00
abstract::Escherichia coli O157:H7 is a notorious pathogen often contracted by intake of contaminated water or food. Infection with this agent is associated with a broad spectrum of illness ranging from mild diarrhea and hemorrhagic colitis to the potentially fatal hemolytic uremic syndrome (HUS). Treating E. coli O157:H7 infec...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2012.00138
更新日期:2012-11-15 00:00:00
abstract::Chronic otitis media with effusion (COME) is a common childhood disease characterized by an accumulation of fluid behind the eardrum. COME often requires surgical intervention and can also lead to significant hearing loss and subsequent learning disabilities. Recent characterization of the middle ear fluid (MEF) micro...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00339
更新日期:2019-10-04 00:00:00
abstract::Cytolethal distending toxin (CDT) produced by Campylobacter jejuni contains three subunits: CdtA, CdtB, and CdtC. Among these three toxin subunits, CdtB is the toxic moiety of CDT with DNase I activity, resulting in DNA double-strand breaks (DSB) and, consequently, cell cycle arrest at the G2/M stage and apoptosis. Ra...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00223
更新日期:2017-06-08 00:00:00
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
更新日期:2017-10-26 00:00:00
abstract::Dengue fever is an Aedes mosquito-borne illness caused by any one of the four different dengue virus (DENV) serotypes (1-4) and manifests in the form of symptoms ranging from mild or asymptomatic to severe disease with vascular leakage, leading to shock, and viral hemorrhagic syndrome. Increased risk of severe disease...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.580096
更新日期:2020-10-02 00:00:00
abstract::Streptococcus dentisani 7746, isolated from dental plaque of caries-free individuals, has been shown to have several beneficial effects in vitro which could contribute to promote oral health, including an antimicrobial activity against oral pathogens by the production of bacteriocins and a pH buffering capacity throug...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00465
更新日期:2020-08-31 00:00:00
abstract::Lung microbiome ecosystem homeostasis in idiopathic pulmonary fibrosis (IPF) remains uncharacterized. The aims of this study were to identify unique microbial signatures of the lung microbiome and analyze microbial gene function in IPF patients. DNA isolated from BALF samples was obtained for high-throughput gene sequ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00149
更新日期:2019-05-21 00:00:00
abstract::Objectives: To evaluate metagenomic next-generation sequencing (mNGS) as a diagnostic tool in detecting pathogens from osteoarticular infection (OAI) samples. Methods: 130 samples of joint fluid, sonicate fluid, and tissue were prospectively collected from 92 patients with OAI. The performance of mNGS and microbiology...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00471
更新日期:2020-09-17 00:00:00
abstract::Enterococcus faecium is a clinically important pathogen associated with opportunistic infection and multi-drug resistance. E. faecium has been shown to produce membrane vesicles (MVs), but MV production by E. faecium under antibiotic stress conditions and the pathogenic traits thereof have yet to be determined. This s...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00295
更新日期:2019-08-14 00:00:00
abstract::In this study, a next-generation sequencing strategy on 16S ribosomal RNA (16S rRNA) gene was employed to analyze 70 oral samples from 32 patients with throat cancer, nine patients with vocal cord polyp, and 29 healthy individuals (normal controls). Using this strategy, we demonstrated, for the first time, that the sa...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00205
更新日期:2019-07-03 00:00:00
abstract::The Mycobacterium fortuitum complex comprises several closely related species, causing pulmonary and extra-pulmonary infections. However, there is very limited knowledge about the disease pathogenesis involved in M. fortuitum infections, particularly due to the lack of suitable animal models. Using the zebrafish model...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00357
更新日期:2020-07-17 00:00:00
abstract::To define the bottlenecks that restrict antigen expression after oral administration of viral-vectored vaccines, we tracked vectors derived from the human adenovirus type 5 at whole body, tissue, and cellular scales throughout the digestive tract in a murine model of oral delivery. After intragastric administration of...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2018.00006
更新日期:2018-01-25 00:00:00
abstract::Entamoeba histolytica is a protozoan parasite and a major cause of dysentery and diarrheal disease in developing countries. Disease transmission from one host to another occurs via cysts which can survive in environmental extremes and are transmitted through contaminated food and water. Recent studies in our lab ident...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00363
更新日期:2020-07-17 00:00:00
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
更新日期:2016-03-31 00:00:00
abstract::The fungal pathogen Cryptococcus neoformans can cause life-threatening infections in immune compromised individuals. This pathogen is typically acquired via inhalation, and enters the respiratory tract. Innate immune cells such as macrophages and dendritic cells (DCs) are the first host cells that encounter C. neoform...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.00037
更新日期:2020-02-11 00:00:00
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
更新日期:2020-10-29 00:00:00
abstract::Macrophages being the connecting link between innate and adaptive immune system plays a crucial role in microbial antigen presentation and orchestrates the subsequent clearance of microorganisms. Microbial invasion of macrophages trigger a plethora of signaling cascades, which interact among them to generate a dynamic...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.582563
更新日期:2020-10-20 00:00:00
abstract::Postpartum depressive disorder (PPD) is a unique subtype of major depressive disorder and a substantial contributor to maternal morbidity and mortality. However, the pathogenesis of PPD has still remained elusive, and it may associate with genetic and environmental factors. Gut microbiota has already been proved to be...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.567268
更新日期:2020-09-29 00:00:00
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
更新日期:2020-02-24 00:00:00
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
更新日期:2020-10-21 00:00:00
abstract::Dermatophytosis is one of the most common human infections affecting both immunocompetent individuals and immunocompromised patients, in whom the disease is more aggressive and can reach deep tissues. Over the last decades, cases of deep dermatophytosis have increased and the dermatophyte-host interplay remains poorly...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00008
更新日期:2017-01-20 00:00:00
abstract::The formation of biofilms by Staphylococcus aureus and Staphylococcus epidermidis is an important aspect of many staphylococcal infections, most notably endocarditis, osteomyelitis and infections associated with indwelling medical devices. The major constituents of staphylococcal biofilms are polysaccharides, such as ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2012.00038
更新日期:2012-03-26 00:00:00
abstract::Intraspecific differences in biological traits between Neospora caninum isolates have been widely described and associated with variations in virulence. However, the molecular basis underlying these differences has been poorly studied. We demonstrated previously that Nc-Spain7 and Nc-Spain1H, high- and low-virulence i...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00354
更新日期:2019-10-15 00:00:00
abstract::Under unfavorable conditions such as host immune responses and environmental stresses, human pathogen Mycobacterium tuberculosis may acquire the dormancy phenotype characterized by "non-culturability" and a substantial decrease of metabolic activity and global transcription rates. Here, we found that the transition of...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00272
更新日期:2019-07-30 00:00:00