In Supplementary Figure S2, EXT1 expression was predominantly confined to vascular-stromal compartments, with detectable transcripts in 10,975 glioma cells (13.4%), 3473 myeloid cells (3.8%), and markedly higher proportions of endothelial (28.9%) and pericyte (27.2%) clusters. This evidence concerns the gene EXT1 and glioma.