NFKB1 and breast cancer: Interestingly, S100A7 is not expressed in healthy breast tissue, but is highly expressed in multiple types of breast cancer and activates several pro‐survival pathways, including those that rely upon signaling of nuclear factor kappa‐light‐chain‐enhancer of activated B cells (NFκB) and protein kinase B (Akt) (Bresnick et al., 2015; Salama et al., 2008).