As shown in Figure 1c, Amplex Red assays on total lysates from cells harvested at early confluence also showed a 6.3 ± 1.2-fold increase in the PC-PLC activity in MDA-MB-231 cells in comparison with the non-tumoral counterpart, whereas the factors of increase were lower for the other BC cells (3.4 ± 0.9 for SKBr3 and 3.3 ± 0.6 for MCF-7). The gene discussed is HSPG2; the disease is breast cancer.