Table 1

TER199 reversal of drug resistance

DrugIC50NIH3T3IC50 3T3/ MRPIC50 3T3/MRP + TER199Sensitization Factor
Doxorubicin (nM)13.3 ± 1.131301 ± 1766.04 ± 0.0712.1
Daunorubicin (nM)23.1 ± 17.1647 ± 177317 ± 1742.0
Etopside (μM)0.610 ± 0.44219.5 ± 8.434.40 ± 1.254.4
Vincristine (nM)3.40 ± 0.72021.4 ± 6.402.90 ± 1.077.4
Mitoxantrone (nM)4.85 ± 2.89108 ± 42.880.2 ± 46.11.3
5-FU (μM)2.68 ± 0.762.67 ± 1.903.02 ± 1.77
  • Cytotoxicity studies were performed in the presence or absence of 50 μM TER199. Cells were exposed to drug for 24 h prior to its removal and replacement with normal growth media. MTS analysis was performed after 24 h. Data are represented as means ± S.D. of three independent experiments.