To investigate the relationships among NR4A1, c-Fos and PRDX6 and human BC prognosis, we analyzed the expression of NR4A1, c-Fos and PRDX6 in the TMA of BC samples (cohort 2) (Fig. 8a) and found that NR4A1 expression was negatively correlated with c-Fos or PRDX6 expression (Fig. 8b). This evidence concerns the gene FOS and breast cancer.