Across TCGA pan-cancer cohorts, HLA-DRB5 mass-spec protein is linked to patient survival in 5 of 34 cancer types, making it a survival-associated HLA-DRB5 data layer compared with 25 for mass-spec protein and 1 for mutation status.
The strongest signal is observed in colon adenocarcinoma (COAD), where higher HLA-DRB5 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated HLA-DRB5 expression acts as an unfavorable survival marker, although some lineages such as PDAC and CCRCC show a favorable association.
COAD, PDAC, and CCRCC are the cancer types where HLA-DRB5 mass-spec protein most reproducibly stratifies survival.