Across TCGA pan-cancer cohorts, SRMP1 RNA differs between tumor and matched normal tissue in 5 of 18 cancer types tested, making tumor–normal expression one of SRMP1’s most consistent transcriptional readouts.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where SRMP1 RNA is more highly expressed in tumor relative to normal tissue. In most cancer types SRMP1 is over-expressed in tumor, although a few such as THCA show the opposite, repressed pattern.
HNSC, KIRP, and LUSC are the cancer types where SRMP1 tumor–normal differential expression is most reproducible.