Across TCGA pan-cancer cohorts, ADAM22 mass-spec protein differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of ADAM22’s most consistent transcriptional readouts.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where ADAM22 mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types ADAM22 is over-expressed in tumor, although a few such as LSCC show the opposite, repressed pattern.
PDAC, CCRCC, and LSCC are the cancer types where ADAM22 tumor–normal differential expression is most reproducible.