BTN3A2 and central nervous system cancer: As shown in Table 1, high BTN2/3 expression was correlated with OS among sexes (except BTN3A3 in women), WHO grade II (BTN2A2), III (BTN2A2, BTN3A1, and BTN3A2), and IDH-Mut (BTN2A2 and BTN3A2) in glioma.