The conducted analysis the data available on international database TCGA using the Kaplan–Meier Plotter (web source the Ualcan) showed that no clear relation between expression level of the studied genes and breast cancer patients survival-AKT1 (p = 0.44), MTOR (p = 0.79), PIK3CA (p = 0.14), PIK3R1 (p = 0.48), PTEN (p = 0.25) (Figure S6). This evidence concerns the gene PIK3CA and breast cancer.