Across TCGA pan-cancer cohorts, CDR2 mass-spec protein is linked to patient survival in 4 of 34 cancer types, making it a survival-associated CDR2 data layer compared with 27 for mass-spec protein and 3 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher CDR2 mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated CDR2 expression acts as an unfavorable survival marker, although some lineages such as HNSC and PDAC show a favorable association.
HNSC, LSCC, and CCRCC are the cancer types where CDR2 mass-spec protein most reproducibly stratifies survival.