Across TCGA pan-cancer cohorts, HMGB1P22 RNA differs between tumor and matched normal tissue in 1 of 18 cancer types tested, making tumor–normal expression one of HMGB1P22’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where HMGB1P22 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types HMGB1P22 is over-expressed in tumor.
COAD are the cancer types where HMGB1P22 tumor–normal differential expression is most reproducible.