Across TCGA pan-cancer cohorts, TOP3A mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated TOP3A data layer compared with 27 for mass-spec protein and 8 for mutation status.
The strongest signal is observed in lung squamous cell carcinoma (LSCC), where higher TOP3A mass-spec protein is associated with better overall survival. In most high-consensus cancer types, elevated TOP3A expression acts as an unfavorable survival marker, although some lineages such as LSCC and LUAD show a favorable association.
LSCC, HNSC, and LUAD are the cancer types where TOP3A mass-spec protein most reproducibly stratifies survival.