Intriguingly, in our in vitro study, we further found that, when compared with the control, not only the protein level of cell proliferation signaling but also the protein expression of cell stress signaling (i.e., Figure 6) and cell cycle biomarkers (Figure 5) were markedly promoted in BC cells (i.e., the T24 cell line) and more markedly promoted in PrPC-OE-T24 cells. This evidence concerns the gene PRNP and breast cancer.