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. The gene discussed is TGFB1; the disease is breast cancer.