PTPRZ1 and glioblastoma: We recapitulated distinct cellular states in a published glioblastoma dataset (Supplementary Fig. 2a)41, and found PTPRZ1 expression to be enriched in astrocyte-like (AC-like) and oligodendrocyte-progenitor-like (OPC-like) glioblastoma cells and to positively correlate with their module scores (Supplementary Fig. 2b, c).