TSPO and glioblastoma: According to both TCGA-GBM and single-cell RNA-Seq datasets, TSPO expression in GB cells indeed positively correlates with expression of the TRAIL receptors TNFRSF10A (TRAIL-R1) and TNFRSF10B (TRAIL-R2) (Additional File 1: Supplementary Fig. 4i, j) [65, 88].