Across TCGA pan-cancer cohorts, ZFX-AS1 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of ZFX-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in thyroid carcinoma (THCA), where ZFX-AS1 RNA is repressed in tumor relative to normal tissue. In most cancer types ZFX-AS1 is over-expressed in tumor, although a few such as THCA and UCEC show the opposite, repressed pattern.
THCA, UCEC, and LUSC are the cancer types where ZFX-AS1 tumor–normal differential expression is most reproducible.