Across TCGA pan-cancer cohorts, DAPK1-IT1 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of DAPK1-IT1’s most consistent transcriptional readouts.
The strongest signal is observed in lung squamous cell carcinoma (LUSC), where DAPK1-IT1 RNA is repressed in tumor relative to normal tissue. In most cancer types DAPK1-IT1 is over-expressed in tumor, although a few such as LUSC and THCA show the opposite, repressed pattern.
LUSC, THCA, and BRCA are the cancer types where DAPK1-IT1 tumor–normal differential expression is most reproducible.