Across TCGA pan-cancer cohorts, IGKV1D-32 RNA differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of IGKV1D-32’s most consistent transcriptional readouts.
The strongest signal is observed in lung adenocarcinoma (LUAD), where IGKV1D-32 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types IGKV1D-32 is over-expressed in tumor, although a few such as COAD and BRCA show the opposite, repressed pattern.
LUAD, COAD, and BRCA are the cancer types where IGKV1D-32 tumor–normal differential expression is most reproducible.