期刊
JOURNAL OF FUNGI
卷 9, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/jof9111052
关键词
Histoplasma capsulatum; histoplasmosis; chitinase; caffeine; methylxanthine; extracellular vesicles; exosomes
Fungal extracellular vesicles (EVs) have potential as therapeutic agents and targets for the treatment of fungal infections. This study found that caffeine, a subinhibitory concentration of methylxanthines, effectively reduces the release of H. capsulatum EVs, leading to a modulation of fungal virulence.
Histoplasma capsulatum is the causative agent of histoplasmosis. Treating this fungal infection conventionally has significant limitations, prompting the search for alternative therapies. In this context, fungal extracellular vesicles (EVs) hold relevant potential as both therapeutic agents and targets for the treatment of fungal infections. To explore this further, we conducted a study using pharmacological inhibitors of chitinase (methylxanthines) to investigate their potential to reduce EV release and its subsequent impact on fungal virulence in an in vivo invertebrate model. Our findings revealed that a subinhibitory concentration of the methylxanthine, caffeine, effectively reduces EV release, leading to a modulation of H. capsulatum virulence. To the best of our knowledge, this is the first reported instance of a pharmacological inhibitor that reduces fungal EV release without any observed fungicidal effects.
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