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Investigation of in vitro antileishmanial activity of moxifloxacin, linezolid and caspofungin on Leishmania tropica promastigotes.

OBJECTIVE
This study aimed to evaluate the potential in vitro anti-leishmanial activities of moxifloxacin, linezolid and caspofungin against Leishmania tropica.


METHODS
In vitro effects of all agents were studied by using the microdilution method. For this purpose, serial dilutions of the aforementioned agents were prepared in concentrations between 4096 μg/mL-0.008 μg/mL. Afterwards, promastigotes incubated in suitable medium were counted with the hemocytometer and adjusted as having a last concentration of 2.5 x 10(6) cells/mL in wells containing medium+antibiotic or antifungal. After incubation live promastigotes were counted with the hemocytometer and inhibitor concentrations (IC(50)) were determined by comparing with the control that contained no antibiotics or antifungal.


RESULTS
IC(50) values of moxiloxacin, linezolid and caspofungin were found as 194.7 μg/mL, 896 μg/mL and 235.7 μg/mL, respectively.


CONCLUSION
As a result, moxifloxacin was found to be effective in lower concentrations than the other studied agents against L. tropica promastigotes.