Across TCGA pan-cancer cohorts, SAMM50 mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated SAMM50 data layer compared with 25 for mass-spec protein and 3 for mutation status.
The strongest signal is observed in lung adenocarcinoma (LUAD), where higher SAMM50 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated SAMM50 expression acts as an unfavorable survival marker, although some lineages such as OV and LSCC show a favorable association.
LUAD, PDAC, and CCRCC are the cancer types where SAMM50 mass-spec protein most reproducibly stratifies survival.