Across TCGA pan-cancer cohorts, MIR6859-2 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of MIR6859-2’s most consistent transcriptional readouts.
The strongest signal is observed in lung squamous cell carcinoma (LUSC), where MIR6859-2 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types MIR6859-2 is over-expressed in tumor, although a few such as BRCA and COAD show the opposite, repressed pattern.
LUSC, BRCA, and LIHC are the cancer types where MIR6859-2 tumor–normal differential expression is most reproducible.