Across TCGA pan-cancer cohorts, ARID1A RNA differs between tumor and matched normal tissue in 13 of 18 cancer types tested, making tumor–normal expression one of ARID1A’s most consistent transcriptional readouts.
The strongest signal is observed in thyroid carcinoma (THCA), where ARID1A RNA is repressed in tumor relative to normal tissue. In most cancer types ARID1A is over-expressed in tumor, although a few such as THCA and KIRC show the opposite, repressed pattern.
THCA, HNSC, and LIHC are the cancer types where ARID1A 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 ARID1A RNA (log2); positive values indicate higher expression in tumor. p-values are from the differential-expression test.