Figure 4. The effect of mitomycin C, camptothecin and etoposide on HIF-1α protein concentrations in different cell lines.

The indicated cell types were treated with 200 µM desferrioxamine, 10 µg/ml mitomycin, 2 µM camptothecin and 50 µM etoposide, as specified, for 10 to 14 hours.