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- W2989681299 abstract "ABSTRACT The antifungal pharmacopeia is critically small, particularly in light of the recent emergence of multi-drug-resistant pathogens such as Candida auris . Herein, we report that derivatives of the anti-malarial drug mefloquine have broad spectrum antifungal activity against pathogenic yeasts and molds. In addition, the mefloquine derivatives have activity against clinical isolates that are resistant to one or more of the three classes of drugs currently used to treat invasive fungal infections, indicating that they have a novel mechanism of action. Importantly, the in vitro toxicity profiles using human cell lines indicate that the mefloquine derivatives are very similar to the parent mefloquine despite being up to 64-fold more active against fungal cells. In addition to direct antifungal activity, sub-inhibitory concentrations of the mefloquine derivatives inhibit the expression of virulence traits including filamentation in C. albicans and capsule formation/melanization in C. neoformans . Mode/mechanism of action experiments indicate that the mefloquine derivatives interfere with both mitochondrial and vacuolar function as part of a multi-target mechanism of action. The broad-spectrum scope of activity, blood-brain-barrier penetration, and large number of previously synthesized analogs available combine to support the further optimization and development of the antifungal activity of this general class of drug-like molecules." @default.
- W2989681299 created "2019-12-05" @default.
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- W2989681299 date "2019-11-22" @default.
- W2989681299 modified "2023-10-18" @default.
- W2989681299 title "Derivatives of the antimalarial drug mefloquine are broad spectrum antifungal molecules with activity against drug-resistant clinical isolates" @default.
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- W2989681299 doi "https://doi.org/10.1101/851816" @default.
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