Fig. 5
From: Interaction between PD-L1 and soluble VEGFR1 in glioblastoma-educated macrophages
Correlation of serum sPD-L1 and sVEGFR1 in GBM patients. (a) Serum sPD-L1 levels in healthy controls (HC, n = 24) and GBM patients (WHO grade I, n = 11; grade II, n = 10; grade III, n = 20; grade IV, n = 17). * P < 0.05, ** P < 0.01. P values are achieved by t-test. (b) Serum sVEGFR1 levels in healthy controls (HC, n = 24) and GBM patients (WHO grade I, n = 11; grade II, n = 10; grade III, n = 20; grade IV, n = 17). ** P < 0.01. P values are achieved by t-test. (c) Correlation between serum sPD-L1 and sVEGFR1 in GBM patients with TNM grade I (n = 11), grade II (n = 10), stage III (n = 20) or stage IV (n = 17). R2 and P values are achieved by Pearson correlation test