In oral cancer and breast cancer, HLA-DQA1 polymorphism is related to incidence, and high levels of expression are associated with better prognosis, offering potential biomarkers for prediction and treatment of oral cancer and breast cancer (Tsai et al. 2011; Zhou et al. 2023; Mahmoodi et al. 2012). This evidence concerns the gene HLA-DQA1 and breast carcinoma.