Table 2.

Densitometry quantification of ABCB1 protein expression. Data normalized to untreated cells.

Dose	25 μg/cm3			50 μg/cm3
Time	2 h	6 h	24 h	2 h	6 h	24 h
A549	0.81	0.87	0.77	0.83	0.75	0.70
HepG2	1.02	1.03	1.15	1.06	0.91	0.90
SW620	0.70	0.72	0.64	0.59	0.66	0.69