Across TCGA pan-cancer cohorts, COL4A2-AS2 RNA differs between tumor and matched normal tissue in 9 of 18 cancer types tested, making tumor–normal expression one of COL4A2-AS2’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where COL4A2-AS2 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types COL4A2-AS2 is over-expressed in tumor, although a few such as KICH and BRCA show the opposite, repressed pattern.
HNSC, KICH, and BRCA are the cancer types where COL4A2-AS2 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 COL4A2-AS2 RNA (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.