Fig. 4. Heparin-based (HP-B) hydrogel decreases breast cancer cell proliferation. (A) Cells were stained for Ki-67 after 72 hours of cell culture. (B) Interestingly, the percentage of Ki-67 positive cells were fewer in 3D spheroids. Aqueous EGF stimulation significantly (**p < 0.005, ***p < 0.0005)" increased proliferation compared to the other conditions. Data is represented as mean ± SEM.
