Across TCGA pan-cancer cohorts, CCDC88B mass-spec protein differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of CCDC88B’s most consistent transcriptional readouts.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where CCDC88B mass-spec protein is more highly expressed in tumor relative to normal tissue. In most cancer types CCDC88B is over-expressed in tumor, although a few such as LUAD and LSCC show the opposite, repressed pattern.
CCRCC, LUAD, and HNSC are the cancer types where CCDC88B tumor–normal differential expression is most reproducible.