Across TCGA pan-cancer cohorts, FAM174A mass-spec protein differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of FAM174A’s most consistent transcriptional readouts.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where FAM174A mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types FAM174A is over-expressed in tumor, although a few such as PDAC and HNSC show the opposite, repressed pattern.
CCRCC, PDAC, and HNSC are the cancer types where FAM174A tumor–normal differential expression is most reproducible.