Across TCGA pan-cancer cohorts, FCGR3A mass-spec protein is linked to patient survival in 3 of 34 cancer types, making it a survival-associated FCGR3A data layer compared with 21 for mass-spec protein and 2 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher FCGR3A mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated FCGR3A expression acts as an unfavorable survival marker, although some lineages such as HNSC and LSCC show a favorable association.
HNSC, LSCC, and GBM are the cancer types where FCGR3A mass-spec protein most reproducibly stratifies survival.