Across TCGA pan-cancer cohorts, CTRL RNA differs between tumor and matched normal tissue in 7 of 18 cancer types tested, making tumor–normal expression one of CTRL’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where CTRL RNA is more highly expressed in tumor relative to normal tissue. In most cancer types CTRL is over-expressed in tumor, although a few such as THCA show the opposite, repressed pattern.
COAD, THCA, and STAD are the cancer types where CTRL tumor–normal differential expression is most reproducible.
RNA tumor vs normal associations by lineage
Ranked by sampling consensus. Fold-change is the tumor-versus-normal difference in CTRL RNA (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.