Across TCGA pan-cancer cohorts, S100A2 mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated S100A2 data layer compared with 24 for mass-spec protein and 1 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher S100A2 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated S100A2 expression acts as an unfavorable survival marker, although some lineages such as HNSC show a favorable association.
PDAC, CCRCC, and HNSC are the cancer types where S100A2 mass-spec protein most reproducibly stratifies survival.