Across TCGA pan-cancer cohorts, HOXB4 mass-spec protein is linked to patient survival in 1 of 34 cancer types, making it a survival-associated HOXB4 data layer compared with 29 for mass-spec protein and 7 for mutation status.
The strongest signal is observed in lung adenocarcinoma (LUAD), where higher HOXB4 mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated HOXB4 expression acts as an unfavorable survival marker, although some lineages such as LUAD show a favorable association.
LUAD are the cancer types where HOXB4 mass-spec protein most reproducibly stratifies survival.