Across TCGA pan-cancer cohorts, CPA2 RNA differs between tumor and matched normal tissue in 9 of 18 cancer types tested, making tumor–normal expression one of CPA2’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where CPA2 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types CPA2 is over-expressed in tumor, although a few such as STAD and BRCA show the opposite, repressed pattern.
HNSC, STAD, and BRCA are the cancer types where CPA2 tumor–normal differential expression is most reproducible.
RNA tumor vs normal associations by lineage
Ranked by sampling consensus. Fold-change is the tumor-versus-normal difference in CPA2 RNA (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.