Across TCGA pan-cancer cohorts, NPC1L1 mass-spec protein is linked to patient survival in 1 of 34 cancer types, making it a survival-associated NPC1L1 data layer compared with 23 for mass-spec protein and 6 for mutation status.
The strongest signal is observed in pancreatic ductal adenocarcinoma (PDAC), where higher NPC1L1 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated NPC1L1 expression acts as an unfavorable survival marker.
PDAC are the cancer types where NPC1L1 mass-spec protein most reproducibly stratifies survival.