Across TCGA pan-cancer cohorts, TTTY22 RNA differs between tumor and matched normal tissue in 1 of 18 cancer types tested, making tumor–normal expression one of TTTY22’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where TTTY22 RNA is repressed in tumor relative to normal tissue. In most cancer types TTTY22 is over-expressed in tumor, although a few such as HNSC show the opposite, repressed pattern.
HNSC are the cancer types where TTTY22 tumor–normal differential expression is most reproducible.