Figure 2

Tumor cell sensitivity, expressed as survival index (SI%) of the colorectal cancer samples for the indicated standard cytotoxic drugs. The curves represent the non-linear regression lines calculated for all individual samples included. The dots are individual patient data points and illustrate together with the individual curves the great variability in drug sensitivity between individual samples. Panel A: oxaliplatin, B: mitomycin C, C: 5-fluorouracil, D: irinotecan.