A previous report had shown that the Wnt3a/GSK3β/Slug/Snail axis controlled the epithelial–mesenchymal transition (EMT) in association with Zeb1/2, vimentin, and fibronectin while coordinately repressing BRCA1 and BRCA2 expression in breast cancer cells exposed to DNA damage [99]. Here, BRCA1 is linked to breast cancer.