Across TCGA pan-cancer cohorts, HMGB1P35 RNA differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of HMGB1P35’s most consistent transcriptional readouts.
The strongest signal is observed in breast invasive carcinoma (BRCA), where HMGB1P35 RNA is repressed in tumor relative to normal tissue. In most cancer types HMGB1P35 is over-expressed in tumor, although a few such as BRCA and THCA show the opposite, repressed pattern.
BRCA, STAD, and THCA are the cancer types where HMGB1P35 tumor–normal differential expression is most reproducible.