Semisynthetic eugenol derivatives as antifungal agents against dermatophytes of the genus Trichophyton
| Autor: | Juan Camilo Lizarazo, Sandra Milena Leal Pinto, John Jairo Rincón, Yohana Rivera, Leonor Y. Vargas Méndez, Laura Viviana Herrera Sandoval |
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| Přispěvatelé: | CLINIUDES |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Microbiology (medical) Dermatophytes Antifungal Agents Cell Survival 030106 microbiology Citotoxicity Microbial Sensitivity Tests Trichophyton rubrum medicine.disease_cause Microbiology Cell Line law.invention 03 medical and health sciences chemistry.chemical_compound Trichophyton law Chlorocebus aethiops Eugenol medicine Animals Methyl isoeugenol Essential oil biology Traditional medicine General Medicine biology.organism_classification Antimicrobial Isoeugenol 030104 developmental biology chemistry Dermatophyte |
| Zdroj: | Repositorio Universidad de Santander Universidad de Santander instacron:Universidad de Santander |
| ISSN: | 1473-5644 0022-2615 |
| DOI: | 10.1099/jmm.0.001019 |
| Popis: | Digital Purpose. Eugenol, the main component of clove bud essential oil (Eugenia caryophyllus), has been linked to antimicrobial, anti-inflammatory, insecticidal and immunomodulatory properties. The purpose of this study was to evaluate the antifungal and cytotoxic activity of eugenol, the essential oil of Eugenia caryophyllus, and some semisynthetic derivatives of eugenol against dermatophytes of the genus Trichophyton. Methodology. We evaluated the antifungal effect of the compounds, determining the minimum inhibitory concentrations (MICs) by the microdilution method and the minimum fungicidal concentrations by cultures from the inhibitions. Additionally, the inhibition of the radial growth of the mycelium of the dermatophyte fungi was tested by poisoned substrate. Cytotoxicity was measured by the colorimetric method on Vero cells. Results. All of the eugenol compounds tested exhibited antifungal properties, showing MICs of 62.5–500 µg ml−1 , determined within three dermatophyte species: Trichophyton rubrum, Trichophyton mentagrophytes and Trichophyton tonsurans. Among these derivatives, methyl isoeugenol, at concentrations of 300 and 100 µg ml−1, was found to completely inhibit (100 %) radial growth of the mycelium of all three species after 20 days of treatment. Additionally, phenotypic variations related to the decrease in pigment production of T. rubrum were observed after treatment with O-ethyl and O-butyl isoeugenol derivatives. Meanwhile, all of the tested (iso)eugenol molecules exhibited moderate toxicity in Vero cells [50 % cytotoxic concentration (the concentration required for a 50 % reduction in cell viability; CC50): 54.06–265.18 µg ml−1 ). Conclusion. The results suggest that the semisynthetic eugenol derivatives (SEDs) show promising antifungal activity and selectivity against dermatophyte fungi. Supplementary material is available with the online version of this article. Ciencias básicas biomédicas, epidemiología, salud pública enfermedades infecciosas, enfermedades no transmisibles epidemiología, salud y desarrollo, discapacidad |
| Databáze: | OpenAIRE |
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