Immunostaining revealed that STAT1 and IFNGR1 were indeed expressed by these cells in GBMO-965 and GBMO-1201, indicating that our GBMO recapitulates part of the immune gene landscape of HOPX+ and SATB2+ populations from GBM in vivo (Fig. 3h and i). This evidence concerns the gene IFNGR1 and glioblastoma.