It was also reported that TRPM4 transcript expression was significantly upregulated in TNBC cases compared with normal breast tissues, in contrast with our observations in TCGA and TMA series of breast cancer cases in which TRPM4 was significantly less common in TNBC cases compared with other breast cancer subtypes (luminal A, luminal B, or HER2-enriched). This evidence concerns the gene ERBB2 and breast cancer.