Aspergillus fumigatus is the main etiological agent of aspergillosis. The antifungal drug caspofungin (CSP) can be used against A. fumigatus, and CSP tolerance is observed. We have previously shown that the transcription factor FhdA is important for mitochondrial activity. Here, we show that FhdA regulates genes transcribed by RNA polymerase II and III. FhdA influences the expression of tRNAs that are important for mitochondrial function upon CSP. Our results show a completely novel mechanism that is impacted by CSP.
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http://dx.doi.org/10.1128/aac.00701-22 | DOI Listing |
J Appl Lab Med
January 2025
ARUP Laboratories, Salt Lake City, UT, United States.
Background: Detection of serum-specific immunoglobulin G (sIgG) to Aspergillus fumigatus traditionally relied on precipitin assays, which lack standardization and have poor analytical sensitivity. Automated quantitative immunoassays are now more widely used alternatives. A challenge, however, is determining reference interval (RI) cutoffs indicative of disease presence.
View Article and Find Full Text PDFMicrobial pathogens generate extracellular vesicles (EVs) for intercellular communication and quorum sensing. Microbial EVs also induce inflammatory pathways within host innate immune cells. We previously demonstrated that EVs secreted by trigger type I interferon signaling in host cells specifically via the cGAS-STING innate immune signaling pathway.
View Article and Find Full Text PDFInt J Chron Obstruct Pulmon Dis
January 2025
Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, People's Republic of China.
Background: Both sensitization and mucus plugs are associated with poor clinical outcomes in COPD. However, little is known about the association between hypersensitivity and mucus plugging in patients with COPD.
Methods: We retrospectively enrolled COPD patients who had visited Peking University Third Hospital and received measurement of the specific IgE ( sIgE) from Oct 1, 2018 to Sep 30, 2023.
Microlife
December 2024
Department of Molecular and Applied Microbiology, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Adolf-Reichwein-Str. 23, 07745 Jena, Germany.
The polyene antimycotic amphotericin B (AmB) and its liposomal formulation AmBisome belong to the treatment options of invasive aspergillosis caused by . Increasing resistance to AmB in clinical isolates of species is a growing concern, but mechanisms of AmB resistance remain unclear. In this study, we conducted a proteomic analysis of exposed to sublethal concentrations of AmB and AmBisome.
View Article and Find Full Text PDFPLoS Negl Trop Dis
January 2025
Department of Radiology, Assam Medical College & Hospital, Dibrugarh, Assam, India.
Background: Chronic pulmonary aspergillosis (CPA) is a disease commonly caused by Aspergillus fumigatus and other Aspergillus species characterized by cavitary lung lesions. Tea garden population is an agrarian population of Assam, mostly associated with tea plantations. Assam is a major tea-producing state with 803 tea gardens producing approximately 50% of the total tea in India, of which 177 are present in the Dibrugarh district alone.
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