Different expressed genes were found in BC and non-tumorous tissues, including significantly upregulated genes PABPN1, CPSF1, PPP1CA, CPSF4, SNRPA, PTBP1, CPSF3, CPSF6, SNRNP70, CSTF1, CSTF2, CSTF3, HNRNPF, CPSF2, FIP1L1, CPSF7, WDR33, ELAVL1, HNRNPC, and significantly downregulated genes PPP1CB, CELF2, and CPEB1. This evidence concerns the gene CPSF6 and breast cancer.