Figure 3

Stage-specific differences in cathepsins K, L, and S in human breast cancer. A) 10 μg of total protein from breast tissues from stage II-IV from normal and cancer breast tissues were loaded for multiplex cathepsin zymography, and a representative zymogram is shown and cropped for clarity. B) Cathepsins K, L, and S activities were quantified by band densitometry (n = 5, *p < 0.05, **p < 0.01, #p < 0.0001).