Across TCGA pan-cancer cohorts, HINT2P1 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of HINT2P1’s most consistent transcriptional readouts.
The strongest signal is observed in breast invasive carcinoma (BRCA), where HINT2P1 RNA is repressed in tumor relative to normal tissue. In most cancer types HINT2P1 is over-expressed in tumor, although a few such as BRCA show the opposite, repressed pattern.
BRCA and HNSC are the cancer types where HINT2P1 tumor–normal differential expression is most reproducible.