Table 3.

IC₅₀ values of cisplatin (CisPt), oxaliplatin (Ox), irinotecan (IRI) and cyclophosphamide (CPX)

	IC50 CisPt [μg/ml]	IC50 Ox [μg/ml]	IC50 IRI [μg/ml]	IC50CPX [μg/ml]
HT-29/EGFP	0.42 (0.27–0.67) r = 0.96	0.62 (0.52–0.75) r = 0.99	1.59 (1.18–2.13) r = 0.97	56.44 (33.89–94.00) r = 0.93
HT-29/EGFP/FUR	0.52 (0.34–0.80) r = 0.96	0.97 (0.69–1.36) r = 0.96	1.51 (1.22–1.86) r = 0.98	121.22 (76.9–191.2) r = 0.93