Interaction of granulocyte colony-stimulating factor and high doses of liposomal amphotericin B in the treatment of systemic murine scedosporiosis

Because human infections by Scedosporium prolificans are difficult to treat and show a very poor outcome, new therapeutic strategies are needed. Liposomal amphotericin B (LAMB) (40 mg/kg/day) increased significantly the mean survival time in immunosuppressed mice compared with a control group (22.6 vs. 8.8 days). Amphotericin B deoxycholate (1.5 mg/kg/day) and granulocyte colony-stimulating factor (G-CSF) (300 microg/kg/day) were ineffective. The combination of LAMB (40 mg/kg/day) and G-CSF (150 or 300 microg/kg/day) did not improve the results obtained with LAMB alone.