By intersecting upregulated genes (Plac1+ versus Plac1− malignant epithelial cells) identified in the “endocytosis” pathway from in‐house data and GSE103322, we obtained a list of genes that were associated with endocytosis and were specifically expressed in Plac1+ tumor cells (Figure S8E, Supporting Information). This evidence concerns the gene PLAC1 and neoplasm.