PLK1 and breast cancer: In silico analysis of the publicly available TCGA BC dataset (filtered for TNBC; AA: n = 41, EA: n = 86) revealed significantly higher expression levels of the mitotic kinases PLK1 (P = 0.026) and AURKB (P = 0.045) in AA patients than in EA patients (Fig. 1C; Supplementary Fig. 2A, B; Table 2).