Across TCGA pan-cancer cohorts, APC mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated APC data layer compared with 21 for mass-spec protein and 9 for mutation status.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where higher APC mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated APC expression acts as an unfavorable survival marker, although some lineages such as LUAD and GBM show a favorable association.
CCRCC, LUAD, and GBM are the cancer types where APC mass-spec protein most reproducibly stratifies survival.