CTLA4 and glioblastoma: The treatments included BCG therapy, anti-PD-1 therapy, anti-CTLA-4 therapy, and adoptive T cell therapy, and all samples were obtained prior to immunotherapy (except the neoadjuvant anti-PD-1 with postoperative adjuvant anti-PD-1 (NA-aPD1) subgroup in the GBM dataset, which was obtained during surgery), the details of the patient cohort are listed in Table 1.