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Krasowska, Anna, 2024, "Alterations in the Level of Ergosterol in Candida albicans’ Plasma Membrane Correspond with Changes in Virulence and Result in Triggering Diversed Inflammatory Response", https://doi.org/10.18150/JFNZHT, RepOD, V1
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Opportunistic pathogen Candida albicans possesses multiple virulence factors which enable colonization and infection of host tissues. Candida-related infections frequently occur in immuno compromised patients, which is related to an insufficient inflammatory response. Furthermore, immunosuppression and multidrug resistance of C. albicans clinical isolates make the treatment of candidiasis a challenge for modern medicine. The most common resistance mechanism of C. albicans to antifungals includes point mutations in the ERG11 gene, which encodes target protein for azoles. Weinvestigated whether the mutations or deletion of the ERG11 gene influence the pathogen-host interactions. We prove that both C. albicans erg11 / and ERG11K143R/K143R exhibit increased cell surface hydrophobicity. Additionally, C. albicans KS058 has an impaired ability of biofilm and hyphae formation. Analysis of the inflammatory response of human dermal fibroblasts and vaginal epithelial cell lines revealed that altered morphology of C. albicans erg11 / results in a significantly weaker immuneresponse. C. albicans ERG11K143R/K143R triggered stronger production of pro-inflammatory response. Analysis of genes encoding adhesins confirmed differences in the expression pattern of key adhesins for both erg11 / and ERG11K143R/K143R strains. Obtained data indicate that alterations in Erg11p consequence in resistance to azoles and affect the key virulence factors and inflammatory response of host cells.
Candida albicans, Erg11p, biofilm, filamentation, adhesins, inflammatory response
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