Across TCGA pan-cancer cohorts, PPP1R8 mass-spec protein is linked to patient survival in 6 of 34 cancer types, making it a survival-associated PPP1R8 data layer compared with 25 for mass-spec protein and 3 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher PPP1R8 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated PPP1R8 expression acts as an unfavorable survival marker, although some lineages such as LUAD and COAD show a favorable association.
HNSC, LUAD, and COAD are the cancer types where PPP1R8 mass-spec protein most reproducibly stratifies survival.