Inhibitory effect of magnetic iron-oxide nanoparticles on the pattern of expression of lanosterol 14α -demethylase (ERG11 ) in fluconazole-resistant colonising isolate of Candida albicans

IET Nanobiotechnology
Mohammad Zare-KhafriMajid Gerami

Abstract

Fluconazole-resistant Candida albicans is a big scary reality. The authors assessed the antifungal effects of magnetic iron-oxide nanoparticles on fluconazole-resistant colonising isolate of C. albicans and determined the expression of ERG11 gene, protein sequence similarity and ergosterol content. C. albicans isolates were characterised and fluconazole resistance is recognised using World Health Organization's WHONET software. Susceptibility testing of magnetic iron-oxide nanoparticles against fluconazole-resistant colonising isolate of C. albicans was performed according to Clinical and Laboratory Standards Institute guidelines. The expression patterns of ERG11 and protein sequence similarity were investigated. Ergosterol quantification has been used to gauge the antifungal activity of magnetic iron-oxide nanoparticles. The findings indicated that 93% of C. albicans isolates were resistant to fluconazole. Magnetic iron-oxide nanoparticles were presented activity against fluconazole-resistant colonising isolate of C. albicans with minimum inhibitory concentration at 250-500 µg/ml. The expression level of ERG11 gene was downregulated in fluconazole-resistant colonising isolate of C. albicans. The results revealed no differences...Continue Reading

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