Across TCGA pan-cancer cohorts, FAS mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated FAS data layer compared with 21 for mass-spec protein and 2 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher FAS mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated FAS expression acts as an unfavorable survival marker, although some lineages such as PDAC and UCEC show a favorable association.
PDAC, GBM, and HNSC are the cancer types where FAS mass-spec protein most reproducibly stratifies survival.