CD8A and glioblastoma: In IDH-wt glioblastoma, CD3+ TILs were observed in 48/68 (70.6%) samples, while CD8+ TILs were seen in 28/68 (41.2%), CD20+ in 18/68 (26.5%) and PD-1+ TILs in 14/68 (20.6%) samples.