SCP2 and breast carcinoma: In mono-cultures of SCP2, ZOL increased breast cancer cell death after 48 hours compared to control from 4.3 ± 1.4 % to 11.8 ± 2.3 % (P < 0.05) for 100 μM and 18.4 ± 3.3 % (P < 0.001) for 500 μM ZOL (Figure 2B).