Table 1. MTT cell proliferation assay for 24, 48 and 72 h on normal and cancer cells.

Time (h)	SNU-475	SNU-423	THLE-3	CRL-9855	CCL-156
IC50 (μg/ml) of PCC
24	6.98 ± 0.11	7.76 ± 0.45	48.63 ± 0.12	53.12 ± 0.08	55.35 ± 0.86
48	6.52 ± 0.23	7.42 ± 0.13	48.52 ± 0.24	52.76 ± 1.76	54.42 ± 1.34
72	6.12 ± 0.19	7.21 ± 0.25	48.39 ± 0.43	52.12 ± 0.54	54.15 ± 0.93
IC50 (μg/ml) of 5-fluoruracil (5-FU)
24	1.14 ± 0.02	1.25 ± 0.06	1.37 ± 0.15	46.11 ± 0.23	44.23 ± 0.56