Across TCGA pan-cancer cohorts, PRCPP1 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of PRCPP1’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where PRCPP1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types PRCPP1 is over-expressed in tumor, although a few such as KIRC show the opposite, repressed pattern.
HNSC and KIRC are the cancer types where PRCPP1 tumor–normal differential expression is most reproducible.