Across TCGA pan-cancer cohorts, TRBV25OR9-2 RNA differs between tumor and matched normal tissue in 1 of 18 cancer types tested, making tumor–normal expression one of TRBV25OR9-2’s most consistent transcriptional readouts.
The strongest signal is observed in breast invasive carcinoma (BRCA), where TRBV25OR9-2 RNA is repressed in tumor relative to normal tissue. In most cancer types TRBV25OR9-2 is over-expressed in tumor, although a few such as BRCA show the opposite, repressed pattern.
BRCA are the cancer types where TRBV25OR9-2 tumor–normal differential expression is most reproducible.