Figure 4.

Response of PC3 cells 14 days after bromelain treatment (IC₅₀ = 60 μg/ml). (a-d) Untreated cells and (e-h) treated cells. The function of seeded cell number per well is as follows: (a and e) 200; (b and f) 100; (c and g) 50; and (d and h): 10. The percentage of plating efficiency (i) was defined as the number of seeded cells per well (treated and untreated cells). Data are presented as mean ± standard error of at least three independent experiments