Across TCGA pan-cancer cohorts, HLA-DQA1 mass-spec protein is linked to patient survival in 6 of 34 cancer types, making it a survival-associated HLA-DQA1 data layer compared with 23 for mass-spec protein and 5 for mutation status.
The strongest signal is observed in clear cell renal cell carcinoma (CCRCC), where higher HLA-DQA1 mass-spec protein is associated with worse disease-free survival. In most high-consensus cancer types, elevated HLA-DQA1 expression acts as an unfavorable survival marker, although some lineages such as HNSC and UCEC show a favorable association.
CCRCC, HNSC, and LSCC are the cancer types where HLA-DQA1 mass-spec protein most reproducibly stratifies survival.