Across TCGA pan-cancer cohorts, OTX2 RNA differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of OTX2’s most consistent transcriptional readouts.
The strongest signal is observed in lung squamous cell carcinoma (LUSC), where OTX2 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types OTX2 is over-expressed in tumor, although a few such as KIRC and THCA show the opposite, repressed pattern.
LUSC, LUAD, and KIRC are the cancer types where OTX2 tumor–normal differential expression is most reproducible.