FBXW7-AS1 and neoplasm: Similar to Panc1-CSC xenograft tumor observations, we detected DEspR+ immunostaining of U87-CSC xenograft tumor cells in the expanding zone and invasive edge, as well as DEspR+ intratumoral vessels (Figure 6A, S6B) thus placing DEspR at the CSC-microvascular niche [15], [18].