TABLE 1

IC50 values for CA4 alone or in combination with U0126 in a panel of cell lines

Cell Line Cell Type IC50a PFb
CA4 CA4 + U0126
nM
BEL-7402 Hepatocellular carcinoma 3140 ± 890 150 ± 50 20.9
SMMC-7721 Hepatocellular carcinoma 480 ± 30 65 ± 9 7.4
3AO Ovarian cancer 990 ± 40 110 ± 10 9.0
KB Epithelial carcinoma 37 ± 14 10 ± 3 3.7
H460 Non–small-cell lung cancer 24 ± 6 32 ± 1c 0.8
MDA-MB-231 Breast cancer 44 ± 9 42 ± 4 1.1
SK-BR-3 Breast cancer 4.8 ± 0.1 3.8 ± 0.5 1.3
HCT 116 Colon cancer 24 ± 2 25 ± 3c 1.0
DLD-1 Colon adenocarcinoma 22 ± 2 21 ± 1 1.0
SGC-7901 Gastric cancer 6.4 ± 0.2 5.6 ± 0.3 1.1
  • a IC50 values represent the concentrations required to inhibit cell growth by 50%. All SRB data are from at least three independent experiments (mean ± S.E.)

  • b Potentiation factor (PF50) = IC50(CA4)/IC50(CA4 + U0126). The concentration of U0126 used was 10 μM

  • c The concentration of U0126 used was 2 μM