Future microbiology · 2017
Pulsed electric field-assisted sensitization of multidrug-resistant Candida albicans to antifungal drugs.
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Novickij Vitalij, Švedienė Jurgita, Paškevičius Algimantas, Markovskaja Svetlana, Girkontaitė Irutė, Zinkevičienė Auksė, Lastauskienė Eglė, Novickij Jurij
Аннотация
AIM: Determine the influence of pH on the inactivation efficiency of Candida albicans in pulsed electric fields (PEF) and evaluate the possibilities for sensitization of a drug-resistant strain to antifungal drugs.
MATERIALS & METHODS: The effects of PEF (2.5-25 kVcm-1) with fluconazole, terbinafine and naftifine were analyzed at a pH range of 3.0-9.0. Membrane permeabilization was determined by flow cytometry and propidium iodide.
RESULTS: PEF induced higher inactivation of C. albicans at low pH and increased sensitivity to terbinafine and naftifine to which the strain was initially resistant. Up to 5 log reduction in cell survival was achieved.
CONCLUSION: A proof of concept that electroporation can be used to sensitize drug-resistant microorganisms was presented, which is promising for treating biofilm-associated infections.
MATERIALS & METHODS: The effects of PEF (2.5-25 kVcm-1) with fluconazole, terbinafine and naftifine were analyzed at a pH range of 3.0-9.0. Membrane permeabilization was determined by flow cytometry and propidium iodide.
RESULTS: PEF induced higher inactivation of C. albicans at low pH and increased sensitivity to terbinafine and naftifine to which the strain was initially resistant. Up to 5 log reduction in cell survival was achieved.
CONCLUSION: A proof of concept that electroporation can be used to sensitize drug-resistant microorganisms was presented, which is promising for treating biofilm-associated infections.