Across TCGA pan-cancer cohorts, MATN4 mass-spec protein is linked to patient survival in 3 of 34 cancer types, making it a survival-associated MATN4 data layer compared with 18 for mass-spec protein and 12 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher MATN4 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated MATN4 expression acts as an unfavorable survival marker, although some lineages such as GBM show a favorable association.
HNSC, GBM, and LSCC are the cancer types where MATN4 mass-spec protein most reproducibly stratifies survival.