Table 1.

Cell survival of drug-treated hepatocellular carcinoma cell lines, as a percentage of survival in control cells

Cell line	50 µM Cel	500 µM Met	50 µM Cel + 500 µM Met
HepG2	81.43±3.12	78.07±2.54	39.12±3.16a
HCCLM3	70.59±5.95	64.65±4.21	49.97±5.43b,c

Values are presented as mean ± SD;

^a P <0.001 compared to celecoxib or metformin treatment alone;

^b P < 0.01 compared to celecoxib treatment alone;

^c P < 0.05 compared to metformin treatment alone;

Cel, celecoxib; Met, metformin.