species are the most common fungal pathogens to infect humans, and can cause life-threatening illnesses in individuals with compromised immune systems. Fluconazole (FLU) is the most frequently administered antifungal drug, but its therapeutic efficacy has been limited by the emergence of drug-resistant strains. When co-administered with minocycline (MIN), FLU can synergistically treat clinical isolates and . However, there have been few reports regarding the synergistic efficacy of MIN and azoles when used to treat FLU-resistant species, including . Herein, we conducted a microdilution assay wherein we found that MIN and posaconazole (POS) showed the best synergy effect, functioning against 94% (29/31) of tested strains, whereas combinations of MIN+itraconazole (ITC), MIN+voriconazole (VOR), and MIN+VOR exhibited synergistic activity against 84 (26/31), 65 (20/31), and 45% (14/31) of tested strains, respectively. No antagonistic activity was observed for any of these combinations. experiments were conducted in , revealing that combination treatment with MIN and azoles improved survival rates of larvae infected with FLU-resistant . Together, these results highlight MIN as a promising synergistic compound that can be used to improve the efficacy of azoles in the treatment of FLU-resistant infections.
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| http://dx.doi.org/10.3389/fmicb.2021.649026 | DOI Listing |
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