Across TCGA pan-cancer cohorts, SHF mass-spec protein differs between tumor and matched normal tissue in 4 of 18 cancer types tested, making tumor–normal expression one of SHF’s most consistent transcriptional readouts.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where SHF mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types SHF is over-expressed in tumor, although a few such as PDAC and CCRCC show the opposite, repressed pattern.
PDAC, CCRCC, and LSCC are the cancer types where SHF tumor–normal differential expression is most reproducible.