Project description:The purpose of this experiment was to detect Aspergillus fumigatus genes that are up- and downregulated in the presence of low concentrations, and also in supra-MIC concentrations of voriconazole, which is persister growth.
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
Project description:Genomic DNA from five strains, Aspergillus fumigatus Af71, Aspergillus fumigatus Af294, Aspergillus clavatus, Neosartorya fenneliae, and Neosartorya fischeri, were co-hybridized with that of Aspergillus fumigatus Af293 and compared.
Project description:This SuperSeries is composed of the following subset Series: GSE24983: Response of A549 cells treated with Aspergillus fumigatus [WT-CF_vs_WT-GC] GSE24984: Response of A549 cells treated with Aspergillus fumigatus [WT-GC_vs_PrtT-GC] GSE24985: Response of A549 cells treated with Aspergillus fumigatus [WT-CF_vs_PrtT-CF] Refer to individual Series
Project description:This study aimed to understand the differences in gene expression when comparing Aspergillus fumigatus swollen conidia that overexpress an artifical Bir1 construct (strain published in Shlezinger et. al 2017) versus a parental control strain in RPMI + 0.5ug/mL voriconazole. The purpose of this experiment was to understand what basal expression differences may drive a decreased susceptibility to hydrogen peroxide upon subsequent treatment (not tested in this submission). The main results show that there is a significant upregulation of mitochondrial-related genes, included aconitate hydratase. These differences may account for increased susrvival upon cellular stressors in this strain background.
Project description:The emergence of triazole resistance in Aspergillus fumigatus poses a significant threat to clinical antifungal therapy. This study investigated the impact of prolonged exposure to the agricultural triazole tebuconazole (TEB) on the susceptibility of A. fumigatus to clinical triazoles and explored associated resistance mechanisms. After 28 days of exposure, isolates exhibited substantial increases in minimum inhibitory concentrations (MICs): up to 128-fold for itraconazole, 64-fold for posaconazole, and 16-fold for voriconazole. Resistance persisted even after TEB removal. Ergosterol levels remained stable, while efflux pump inhibition led to MIC reduction, confirming their role in resistance. Proteomic analysis identified 193 upregulated and 88 downregulated proteins, with distinct profiles between treated and untreated groups. These findings demonstrate that agricultural triazoles can induce stable, multidrug-resistant phenotypes in A. fumigatus, emphasizing the need for integrated surveillance of antifungal resistance across environmental and clinical settings.
Project description:We examined the antifungal activity of artemisinin against Aspergillus fumigatus (A. fumigatus), a pathogenic filamentous fungus responsible for allergic and invasive aspergillosis in humans and analyzed transcript profiles of the fungus on exposure to Artemisinin. A. fumigatus spores were cultured for 48 h and then treated with artemisinin (at MIC50 concentration) or solvent control (DMSO) for 3 h to study its transcriptomic profiles.
Project description:Investigation of whole genome gene expression level changes in trichostatin A (TSA)-treated A. fumigatus Af293 compared to non-treated A. fumigatus Af293. Species: Aspergillus fumigatus; Strain: Af293; Type of array: Eukaryotic Expression (4plex, 2plex for a TSA-treated sample and 2plex for a non-treated sample); Technical replicates: Two per treatment.
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
