Across TCGA pan-cancer cohorts, SMARCAL1-AS1 RNA differs between tumor and matched normal tissue in 6 of 18 cancer types tested, making tumor–normal expression one of SMARCAL1-AS1’s most consistent transcriptional readouts.
The strongest signal is observed in kidney renal clear cell carcinoma (KIRC), where SMARCAL1-AS1 RNA is repressed in tumor relative to normal tissue. In most cancer types SMARCAL1-AS1 is over-expressed in tumor, although a few such as KIRC and KICH show the opposite, repressed pattern.
KIRC, KICH, and LIHC are the cancer types where SMARCAL1-AS1 tumor–normal differential expression is most reproducible.