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Ligand–receptor interactions between cancer cells and endothelial cells. (A) Overall interaction. Ligand–receptor interactions among endothelial cells and 5 subgroups of cancer cells in Cont (B) and Case (C). (D) The strength of interactions. (E) Alternative genes of interactions and their expression (F). Ligand–receptor pairs between the CXCL8 subgroup and endothelial cells were up-regulated (H) and down-regulated (G).
