EEF1A2 and neoplasm: On the other hand, the vaccine Theratope® (STn-KLH), based on the abnormal O-glycosylated epitope sialyl-Tn (STn) on the surface of tumor cells, through conjugation with keyhole limpet hemocyanin (KLH) and cyclophosphamide pretreatment, successfully induced high-titer anti-STn IgG in phase II/III clinical trials.