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Activity of 3′-Hydroxychalcone Against Cryptococcus Gattii and Toxicity, and Efficacy in Alternative Animal Models
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Activity of 3′-Hydroxychalcone Against Cryptococcus Gattii and Toxicity, and Efficacy in Alternative Animal Models
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Journal Article
Activity of 3′-Hydroxychalcone Against Cryptococcus Gattii and Toxicity, and Efficacy in Alternative Animal Models
2017
Overview
This work aimed to evaluate the activity of 3'-hydroxychalcone against Cryptococcus gattii in planktonic and biofilm forms and their toxicity using alternative animal models.
Minimum inhibitory concentration and minimum fungicide concentration were determined. Biofilm formation and the susceptibility tests were performed by the 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-5-[carbonyl(phenylamino)]-2H-tetrazolium hydroxide assay. Toxicity and efficacy were checked in Danio rerio and Galleria mellonella models.
The compound 3'-hydroxychalcone showed fungicidal activity against C. gattii in both planktonic and biofilm forms. The toxicity in zebrafish embryos revealed a low lethal concentration. In G. mellonella, the compound did not show antifungal activity and larvae toxicity.
Because of the activity of 3'-hydroxychalcone against C. gattii in vitro, molecular modifications should be made to improve efficacy and to reduce toxicity in vivo. [Formula: see text].
Publisher
Future Medicine Ltd
Subject
/ Animals
/ Antifungal Agents - chemistry
/ Antifungal Agents - pharmacology
/ Biofilms
/ Cryptococcosis - microbiology
/ Cryptococcus gattii - cytology
/ Cryptococcus gattii - drug effects
/ Drugs
/ Embryos
/ Fungi
/ Microscopy, Electron, Scanning
/ Minimum inhibitory concentration
/ Scanning electron microscopy
/ Toxicity
