Across TCGA pan-cancer cohorts, HMGB1P33 RNA differs between tumor and matched normal tissue in 2 of 18 cancer types tested, making tumor–normal expression one of HMGB1P33’s most consistent transcriptional readouts.
The strongest signal is observed in stomach adenocarcinoma (STAD), where HMGB1P33 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types HMGB1P33 is over-expressed in tumor.
STAD and LUAD are the cancer types where HMGB1P33 tumor–normal differential expression is most reproducible.