The overexpression of the STn antigen is associated with increased tumor growth, tissue invasion, and metastasis of cancer.54 In addition, STn is usually correlated with poor prognosis in cancer patients because high levels of STn expression in cancer show rapid aggressiveness.55 Indeed, STn has been considered one of the most promising targets for therapeutic cancer vaccine development. The gene discussed is EEF1A2; the disease is neoplasm.