Table 3: The combination test results of LCME and conventional antifungal drugs against clinical Scedosporium isolates.
aCBS, Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands.
bLCMEalone, AMBalone, CSPalone, TRBalone and VRCalone, mean MICs of L-cysteine methyl ester hydrochloride, amphotericin B, caspofungin, terbinafine and voriconazole, respectively, when applied alone; LCMEcomb, AMBcomb, CSPcomb, TRBcomb and VRCcomb, mean MICs of L-cysteine methyl ester hydrochloride, amphotericin B, caspofungin, terbinafine and voriconazole, respectively, when applied in combination.
cFICI, fractional inhibitory concentration index value
dNI, no interaction (0.5 < FICI ≤ 4); S, synergism (FICI ≤ 0.5) [17].
*The MICs of AMB, CSP, TRB and VRC were determined in a previous study of our research group [14].
Isolatea Mean MIC (μg/ml)b FICIc Interactiond
LCMEalone LCMEcomb AMBalone* AMBcomb
S. aurantiacum (CBS 116910) 512 64 128 1 0.13 S
S. aurantiacum (CBS 136046) 1024 64 128 4 0.09 S
S. boydii (CBS 117432) 1024 64 128 0.25 0.06 S
S. boydii (CBS 120157) 1024 64 64 2 0.09 S
LCMEalone LCMEcomb CSPalone* CSPcomb
S. aurantiacum (CBS 116910) 512 64 32 16 0.63 NI
S. aurantiacum (CBS 136046) 1024 128 64 0.125 0.13 S
S. boydii (CBS 117432) 1024 64 64 8 0.19 S
S. boydii (CBS 120157) 1024 128 32 0.125 0.13 S
LCMEalone LCMEcomb TRBalone* TRBcomb
S. aurantiacum (CBS 116910) 512 64 128 4 0.16 S
S. aurantiacum (CBS 136046) 1024 64 128 4 0.09 S
S. boydii (CBS 117432) 1024 64 128 4 0.09 S
S. boydii (CBS 120157) 1024 64 128 8 0.13 S
LCMEalone LCMEcomb VRCalone* VRCcomb
S. aurantiacum (CBS 116910) 512 256 8 4 1.00 NI
S. aurantiacum (CBS 136046) 1024 128 32 0.125 0.13 S
S. boydii (CBS 117432) 1024 64 16 4 0.31 S
S. boydii (CBS 120157) 1024 64 16 1 0.13 S