Strikingly, we found KRT14 expression in the eight MDA-MB-231 cell line samples was significantly lower than that of Basal-like MET500 breast cancer samples (p-value = 0.0007); however, such significant KRT14 differential expression was not detected between MDA-MB-231 and MET500 breast cancer samples of non-Basal-like subtypes (Fig. 4f). Here, KRT14 is linked to breast cancer.