Across TCGA pan-cancer cohorts, MDC1 mass-spec protein is linked to patient survival in 6 of 34 cancer types, making it a survival-associated MDC1 data layer compared with 28 for mass-spec protein and 6 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher MDC1 mass-spec protein is associated with worse overall survival. In most high-consensus cancer types, elevated MDC1 expression acts as an unfavorable survival marker, although some lineages such as LSCC and GBM show a favorable association.
HNSC, LSCC, and PDAC are the cancer types where MDC1 mass-spec protein most reproducibly stratifies survival.