Across TCGA pan-cancer cohorts, IGLV3-12 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of IGLV3-12’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where IGLV3-12 RNA is repressed in tumor relative to normal tissue. In most cancer types IGLV3-12 is over-expressed in tumor, although a few such as COAD and LIHC show the opposite, repressed pattern.
COAD, LUAD, and KIRC are the cancer types where IGLV3-12 tumor–normal differential expression is most reproducible.