Across TCGA pan-cancer cohorts, XIRP2-AS1 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of XIRP2-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal clear cell carcinoma (KIRC), where XIRP2-AS1 RNA is repressed in tumor relative to normal tissue. In most cancer types XIRP2-AS1 is over-expressed in tumor, although a few such as KIRC show the opposite, repressed pattern.
KIRC and KIRP are the cancer types where XIRP2-AS1 tumor–normal differential expression is most reproducible.