To validate the data from bulk mRNA seq, we selected a set of neural and glial‐specific genes (i.e., PAX6, BRN2/POU3F2, NF‐L/NEFL, and GFAP) showing high expression in the GLICO model in comparison to independently cultured glioblastoma spheroids (Fig. 4E) or standard glioblastoma 2D culture (Fig. 1E). The gene discussed is GFAP; the disease is glioblastoma.