CD74 and cancer: We find that the genes specifically expressed in the supratentorial tumors from these publications (such as HLA-DRA, LYZ, CD74, F13A1, and TRIM22, Supplementary Fig. 6a, b) tend to be expressed in cells within the microglia-type cluster, whereas the infratentorial tumors have higher expression of cancer cell-related genes (Fig. 3e).