However, analyses of multiple publicly available databases, including The Cancer Genome Atlas (TCGA, Agilent‐4502A and HG‐U133A dataset) [24], Rembrandt [25], and Gravendeel [26] reveal that at the messenger RNA (mRNA) expression level, Cx43 levels are not significantly different from those in non‐tumor tissue (Fig. 1E, Fig. S2). This evidence concerns the gene GJA1 and neoplasm.