Across TCGA pan-cancer cohorts, ARL2-SNX15 RNA differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of ARL2-SNX15’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where ARL2-SNX15 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types ARL2-SNX15 is over-expressed in tumor, although a few such as BRCA show the opposite, repressed pattern.
HNSC, LUAD, and BRCA are the cancer types where ARL2-SNX15 tumor–normal differential expression is most reproducible.