To further investigate the expression pattern of TCF19 in human cancers, we first analysed The Cancer Genome Atlas (TCGA) database and found that TCF19 mRNA levels were upregulated in most human cancers (meta-analysis, log2FC=0.68, P=2.84x10-13) including thyroid cancer (Supplementary Figure 3 and Figure 1A). Here, TCF19 is linked to thyroid cancer.