Across TCGA pan-cancer cohorts, ETS1-AS1 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of ETS1-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in thyroid carcinoma (THCA), where ETS1-AS1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types ETS1-AS1 is over-expressed in tumor, although a few such as LUSC show the opposite, repressed pattern.
THCA and LUSC are the cancer types where ETS1-AS1 tumor–normal differential expression is most reproducible.