As breast cancers can be classified into basal/stem cell–enriched and luminal/differentiated cell‐enriched clusters,38 we used logistic regression to screen out gene signatures (Table S2) which indicate Wnt, TGF‐β, and Hedgehog signaling‐related CD200 and CD276 in breast cancer stem cells. This evidence concerns the gene TGFB1 and breast carcinoma.