Figure 3

The effects of quercetin on HO-1 expression in AMJ2-C11, LA-4, and HBEC4 cells. AMJ2-C11, LA-4, and HBEC4 cells were cultured with various concentrations (0, 5, 10, 20 μM) of quercetin for 4 hours to detect HO-1 mRNA expression determined by quantitative real-time PCR (A), and for 8 hours to detect HO-1 protein expression determined by western blotting (B), respectively. Results are shown as the mean ± SD of three independent experiments. Asterisks, significantly different from the date at concentration zero of quercetin treated (p < 0.05).