Table 1.

IC50 values after cisplatin, bortezomib and combined treatment of cell lines in vitro: 95% confidence intervals (CI) of IC50 values after 50 h of treatment. For combined treatment with a fix ratio of bortezomib to cisplatin of 1:10, the respective IC50 values of the bortezomib content is shown.

Cell Line	95% CI (IC50 Cisplatin)	95 % CI (IC50 Bortezomib)	95% CI (IC50 Combination, Given c[Bor])
BON	4.960 to 11.54 µM	0.01963 to 0.05009 µM	0.01148 to 0.01921 µM
LCC-18	9.056 to 31.38 µM	0.03125 to 0.1359 µM	0.05334 to 0.07376 µM
KRJ-I	2.386 to 6.931 µM	0.003470 to 0.008452 µM	0.001668 to 0.006319 µM