GATA6 and hepatocellular carcinoma: Analysis of RNA-seq data from the TCGA consortium revealed that both the GATA4 and GATA6 transcripts are on average expressed at significantly higher levels in gastric tumors compared to a collection of solid cancer types (Figure 1A), with the exception of hepatocellular carcinoma tumors, in which GATA4 levels were not significantly different compared to gastric tumors (Supplementary Table S1).