Western blot analyses showed high SDCBP and BACH1 protein expressions in TNBC cell lines (e.g., MDA-MB-231, MDA-MB-468, and Hs578T), while lower levels were found in luminal A breast cancer cell lines (e.g., MCF-7 and T47D) (Fig. EV1C,D). This evidence concerns the gene SDCBP and breast cancer.