PTPRZ1 and glioblastoma: In a paired glioma and stromal cell scRNA-seq dataset (n(glioblastoma)=16, n(IDH-mut glioma)=3, and n(pediatric high-grade glioma)=1), we independently validated malignant cell-type specificity of PTPRZ1 expression (Fig. 1c, d, Supplementary Fig. 1i, j).