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