Specifically, genes that are known to be associated with BC, including Topoisomerase 2 alpha (TOP2A), Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), denticleless/RA-regulated nuclear matrix associated protein (DTL), H3 histone family, member A, histone 1, H3a (HIST1H3A), the targeting protein for Xklp2 (TPX2), Hepatitis C virus NS5A-transactivated protein (KIAA0101), centromere protein-F (CENPF) and ubiquitin-conjugating enzyme E2T (UBE2T) were upregulated compared to the controls. Here, CEACAM1 is linked to breast cancer.