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- W4313330060 abstract "Abstract The human fungal pathogen, Cryptococcus neoformans , is responsible for deadly infections among immunocompromised individuals with the evolution of antifungal resistance driving the need for discovery of new compounds that inhibit fungal virulence factors, rather than kill the pathogen. Recently, exploration into natural sources (e.g., plants, invertebrates, microbes) of antifungal agents has garnered attention by integrating a One Health approach for new compound discovery. Here, we explore extracts from three mollusk species (freshwater and terrestrial) and evaluate effects against the growth and virulence factor production (i.e., thermotolerance, melanin, capsule, and biofilm) in C. neoformans . We demonstrate that clarified extracts of Planorbella pilsbryi have a fungicidal effect on cryptococcal cells in a comparable way to fluconazole. Similarly, all extracts of Cipangopaludina chinensis not only affect cryptococcal thermotolerance but also impair biofilm and capsule production with clarified extracts of Cepaea nemoralis also conveying the latter effect. Next, inhibitory activity of extracts against peptidases related to these virulence factors combined with quantitative proteomics defined distinct proteome signatures and proposed proteins driving the observed anti-virulence properties. Overall, this work highlights the potential of compounds derived from natural sources to inhibit virulence factor production in a clinically important fungal pathogen." @default.
- W4313330060 created "2023-01-06" @default.
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- W4313330060 date "2022-12-29" @default.
- W4313330060 modified "2023-09-25" @default.
- W4313330060 title "Differentiated extracts from freshwater and terrestrial mollusks inhibit virulence factor production in Cryptococcus neoformans" @default.
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- W4313330060 doi "https://doi.org/10.21203/rs.3.rs-2399634/v1" @default.
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