MMP12 and breast cancer: Only 10 DEGs (ACE2, FGFBP1, K6C, KRT16, KRT81, HORMAD1, MMP12, PI3, SHC4, and TRIM29) were found to be overexpressed in recurrent TNBC that were also enriched in TNBC compared to all other breast cancer subtypes (Fig. 1C).