Across TCGA pan-cancer cohorts, OLFML2A mass-spec protein differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of OLFML2A’s most consistent transcriptional readouts.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where OLFML2A mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types OLFML2A is over-expressed in tumor, although a few such as LUAD show the opposite, repressed pattern.
CCRCC, LUAD, and HNSC are the cancer types where OLFML2A tumor–normal differential expression is most reproducible.