Effects of subinhibitory concentrations of ciclopirox on the adherence of Candida albicans to human buccal and vaginal epithelial cells.
At present, only a limited number of studies of the effects of sub-inhibitory antifungal agents on the adherence of Candida to epithelial (buccal and vaginal) host cells are available. The adherence of Candida albicans to the epithelial cell surface is accepted as an important first step in persistent colonization and in the following symptomatic or asymptomatic infection of mucosal surface. Ciclopirox (ciclopiroxolamine, CAS 29342-05-0) is a substituted pyridone antimycotic drug, unrelated to the imidazole derivatives and its topical application ensures maximum local bioavailability. The present study was done to investigate the effects of sub-inhibitory concentrations of ciclopirox on the adherence of Candida albicans to human buccal and vaginal epithelial cells. The findings on the adherence of different strains of Candida indicate that the drug caused a significant reduction in the mean number of Candida adhering to both buccal and vaginal cells. This reduction was maximal at concentration of 1/2 MIC and still significant at 1/4, 1/8, 1/16 MIC, but with progressive return to mean control values at 1/32 MIC. Ciclopirox acts on fungi by inhibiting the intracellular uptake of essential substrates and ions and this probably acts on the Candida ability to express its adherence mechanisms.[1]References
- Effects of subinhibitory concentrations of ciclopirox on the adherence of Candida albicans to human buccal and vaginal epithelial cells. Braga, P.C., Piatti, G., Conti, E., Vignali, F. Arzneimittel-Forschung. (1992) [Pubmed]
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