RNA-Seq of human dendritic cells from aspergillosis and asthma patients after challenge with Aspergillus fumigatus, SYBARIS project.
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Project description:Aspergillosis covers a range of infections cause by Aspergillus species, and in many cases can be life threatening. Individuals with weakened immune systems are particularly at risk. Dendritic cells were derived from patients with allergic brochopulmonary aspergillosis (ABPA), chronic cavitary pulmonary aspergillosis (CCPA), and asthma, as well as from healthy donors. Each sample was split in two, and one sample from each pair was cultured with Aspergillus fumigatus. RNA-sequencing was used to assess transcriptional changes in the human cells in response to pathogen challenge. Many genes known to be important in immunity were found to exhibit differential expression after fungal challenge between healthy and diseased individuals, including chemokines and C-type lectins.
2016-04-30 | E-SYBR-3 | biostudies-arrayexpress
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. The transcriptional profiles of A. fumigatus conidiospores incubated in the presence or absence of human cells were compared, revealing significant changes in fungal gene expression in response to conidial interaction with cells.
2011-06-01 | GSE16630 | GEO
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. The transcriptional profiles of A. fumigatus conidiospores incubated in the presence or absence of human cells were compared, revealing significant changes in fungal gene expression in response to conidial interaction with cells. Gene expression levels were investigated in A. fumigatus conidiospores incubated in the presence or absence of 16HBE cells for 6 hours. Four independent samples were analysed for each of these conditions, using JCVI PFGRC Aspergillus fumigatus Version 3 microarrays, with a dye-swap experimental design.
2011-06-01 | E-GEOD-16630 | biostudies-arrayexpress
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. Comparing the transcriptional profiles of control cells and cells exposed to A. fumigatus conidiospores using Agilent Whole Human Genome microarrays revealed significant changes in gene expression in response to the presence of conidiospores. The identification of biologically relevant responses validates this methodology, and motivates further work to characterize the interactions between A. fumigatus conidiospores and primary airway epithelial cells of normal and asthmatic origins.
2011-06-01 | GSE16628 | GEO
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. Comparing the transcriptional profiles of control cells and cells exposed to A. fumigatus conidiospores using Agilent Whole Human Genome microarrays revealed significant changes in gene expression in response to the presence of conidiospores. The identification of biologically relevant responses validates this methodology, and motivates further work to characterize the interactions between A. fumigatus conidiospores and primary airway epithelial cells of normal and asthmatic origins. Gene expression levels were investigated in 16HBE cells incubated in the presence or absence of A. fumigatus conidiospores for 6 hours. Four independent cell samples were analysed for each of these conditions, using Agilent Whole Human Genome microarrays, with a one-colour experiemntal design.
2011-06-01 | E-GEOD-16628 | biostudies-arrayexpress
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. Using fluorescence-activated cell sorting (FACS), cells directly interacting with conidiospores and cells not associated with any conidiospores were sorted into separate samples. Transcriptional profiling of these samples using Agilent Whole Human Genome microarrays revealed significant changes in gene expression in response to interaction with conidiospores. The identification of biologically relevant responses validates this methodology, and motivates further work to characterize the interactions between A. fumigatus conidiospores and primary airway epithelial cells of normal and asthmatic origins.
2010-06-04 | GSE16627 | GEO
Project description:Aspergillus fumigatus is a filamentous fungus capable to cause an important disease known as invasive aspergillosis. Challenge different cell lines is a crucial strategy to undercover new virulence factors involved in the infection process. In this research, RAW 264.7 macrophages and A549 lung epithelial cells were challenge using A. fumigatus conidia in a MOI of 10 and 5 respectively. When these conidia reach 30% of germination, the total RNA was isolated (A. fumigatus alone (Control), A. fumigatus vs RAW 264.7, and A. fumigatus vs A549) and purified using the RNeasy Plant Mini Kit (Qiagen). The AWAFUGE (Agilent Whole A. fumigatus Genome Expression 44K v.1) hybridization was carried out following previously publish protocols (A-MEXP-2352 and E-MTAB-5314).
2024-01-20 | E-MTAB-13476 | biostudies-arrayexpress
Project description:The cells of the airway epithelium play critical roles in host defense to inhaled irritants, and in asthma pathogenesis. These cells are constantly exposed to conidiospores of the ubiquitous mould Aspergillus fumigatus, which are small enough to reach the alveoli. This exposure is asymptomatic in most individuals but can be associated with a spectrum of diseases ranging from asthma and allergic bronchopulmonary aspergillosis to aspergilloma and invasive aspergillosis. Airway epithelial cells have been shown to internalize A. fumigatus conidiospores in vitro, but the implications of this process for pathogenesis remain unclear. We have developed a cell culture model for this interaction using the 16HBE cell line and a transgenic A. fumigatus strain expressing green fluorescent protein. Using fluorescence-activated cell sorting (FACS), cells directly interacting with conidiospores and cells not associated with any conidiospores were sorted into separate samples. Transcriptional profiling of these samples using Agilent Whole Human Genome microarrays revealed significant changes in gene expression in response to interaction with conidiospores. The identification of biologically relevant responses validates this methodology, and motivates further work to characterize the interactions between A. fumigatus conidiospores and primary airway epithelial cells of normal and asthmatic origins. Four independent samples of 16HBE cells incubated with GFP-expressing Aspergillus fumigatus conidiospores for 6 hours were analyzed by flow cytometry and divided into negative and positive samples based on the presence of a GFP signal, representing cells with no direct contact with conidiospores and cells directly interacting with conidiospores, respectively. Gene expression was analyzed in these 8 samples using Agilent Whole Human Genome microarrays, with a one-colour experiemntal design.
2010-06-16 | E-GEOD-16627 | biostudies-arrayexpress
Project description:Amphotericin B (AMB) is the most widely used polyene antifungal drug for the treatment of systemic fungal infections including invasive aspergillosis. We aimed to understand molecular targets of AMB in Aspergillus fumigatus (Afu) by genomic approaches. Keywords: Aspergillus fumigatus treated with amphotericin B for 24 hours
2008-02-14 | GSE10505 | GEO
Project description:Amphotericin B (AMB) is the most widely used polyene antifungal drug for the treatment of systemic fungal infections including invasive aspergillosis. We aimed to understand molecular targets of AMB in Aspergillus fumigatus (Afu) by genomic approaches. Amphotericin B (AMB) is the most widely used polyene antifungal drug for the treatment of systemic fungal infections including invasive aspergillosis. We aimed to understand molecular targets of AMB in Aspergillus fumigatus (Afu) by microarray and proteomic methods. Keywords: Aspergillus fumigatus treated with amphotericin B for 24 hours Experiment was performed in dye swap manner from two different biological replicates
2010-05-26 | E-GEOD-10505 | biostudies-arrayexpress