IL11RA and cancer: Other targets include the unique fusion protein, EWS-FLI-1, overexpressed antigens such as interleukin 11 receptor alpha subunit (IL11Rα), developmental/cancer testis antigens such as fetal acetylcholine receptor (fAChR), and costimulatory proteins such as NK cell activating receptor group2-member D (NKG2D) [44,45,46,47,48,49].