Across TCGA pan-cancer cohorts, HMGB1P15 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of HMGB1P15’s most consistent transcriptional readouts.
The strongest signal is observed in bladder urothelial carcinoma (BLCA), where HMGB1P15 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types HMGB1P15 is over-expressed in tumor.
BLCA and HNSC are the cancer types where HMGB1P15 tumor–normal differential expression is most reproducible.