Figure 1.

Cluster analysis of VEGF and sVEGFR2 with significantly correlated cytokines and angiogenic factors. Scatter plot of log 2 values of VEGF and sVEGFR2 (A). Unsupervised cluster analysis of cytokines and angiogenic factors (CAFs) that significantly correlated with VEGF (B), and sVEGFR2 (C) in patients with gastric cancer. The CAF concentration ratios are depicted by a log-transformed pseudo-color intensity scale. Abbreviations: VEGF, vascular endothelial growth factor; sVEGFR2, soluble vascular endothelial growth factor receptor 2; IL, interleukin; FDR, false discovery rate; SCF, stem cell factor; FGF-basic, fibroblast growth factor 2 basic; PDGF-bb, platelet-derived growth factor beta polypeptide b.