Across TCGA pan-cancer cohorts, TRBV6-8 RNA differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of TRBV6-8’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where TRBV6-8 RNA is repressed in tumor relative to normal tissue. In most cancer types TRBV6-8 is over-expressed in tumor, although a few such as COAD show the opposite, repressed pattern.
COAD, KIRC, and LUAD are the cancer types where TRBV6-8 tumor–normal differential expression is most reproducible.