Across TCGA pan-cancer cohorts, ALOX15 mass-spec protein differs between tumor and matched normal tissue in 3 of 18 cancer types tested, making tumor–normal expression one of ALOX15’s most consistent transcriptional readouts.
The strongest signal is observed in colon adenocarcinoma (COAD), where ALOX15 mass-spec protein is repressed in tumor relative to normal tissue. In most cancer types ALOX15 is over-expressed in tumor, although a few such as COAD and LUAD show the opposite, repressed pattern.
COAD, LUAD, and PDAC are the cancer types where ALOX15 tumor–normal differential expression is most reproducible.