Across TCGA pan-cancer cohorts, LARGE-AS1 RNA differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of LARGE-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where LARGE-AS1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types LARGE-AS1 is over-expressed in tumor, although a few such as PAAD and LUAD show the opposite, repressed pattern.
HNSC, BRCA, and PAAD are the cancer types where LARGE-AS1 tumor–normal differential expression is most reproducible.