FLT1 and glioblastoma: The VEGF signalling network, mediated by VEGFA‐VEGFR1/VEGFR2/VEGFR1R2, was primarily concentrated between high‐risk scoring TAMs, pericyte and endothelial cells, suggesting that high‐risk scoring TAMs may promote angiogenesis in glioblastoma (Figure 9E; Figure S5D,E).