Across TCGA pan-cancer cohorts, PPIAP14 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of PPIAP14’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal clear cell carcinoma (KIRC), where PPIAP14 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types PPIAP14 is over-expressed in tumor, although a few such as BRCA and HNSC show the opposite, repressed pattern.
KIRC, BRCA, and LUSC are the cancer types where PPIAP14 tumor–normal differential expression is most reproducible.