Across TCGA pan-cancer cohorts, ITPK1-AS1 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of ITPK1-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where ITPK1-AS1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types ITPK1-AS1 is over-expressed in tumor, although a few such as KIRP show the opposite, repressed pattern.
HNSC, STAD, and COAD are the cancer types where ITPK1-AS1 tumor–normal differential expression is most reproducible.