Table 4. The fold change in the EC50 of parasite growth following drug treatment between 3D7 parasites and those expressing yeast DHODH (yDHODH) in the presence of proguanil (from Table 3), and the fold change in 3D7 parasites treated with each drug in the presence and absence of proguanil.
Fold Increase with yDHODH |
3D7 Fold Decrease with Proguanil | ||
---|---|---|---|
Control | +1 μM Proguanil | ||
ATV | >50 | 1.3 (p = 0.3158) | 11 (p =0.0002) |
DSM-1 | >44 | 19 (p = 0.0001) | 0.7 ( p =0.1105) |
MMV020439 | 10 (p = 0.0004) | 1.5 (p = 0.1088) | 14 (p =0.0001) |
MMV007571 | 96 (p = 0.0054) | 1.5 (p = 0.0709) | 3.5 (p =0.001) |
P-values for fold change (comparing EC50 from 3D7 with corresponding yDHODH and comparing 3D7 with and without proguanil) were calculated using a two-tailed Student’s t-test with Welch’s correction, p-values in bold signify <0.05.