Fig. 2From: Roles of circRNAs in the tumour microenvironmentThe functional roles of circRNAs in tumour angiogenesis and endothelial monolayer permeability. a circRNAs promote angiogenesis. b circRNAs inhibit angiogenesis. c circRNAs promote endothelial monolayer permeability. The green arrow indicates stimulatory modification, and the red “T” symbol indicates inhibitory modificationBack to article page