CXCL12 and glioma: Analyzing CXCL12 positivity per individual cell types, we detected significant positive correlations for frequency of CXCL12+ endothelial cells (E12; rs = 0.695, p = 0.046) and of CXCL12+ glioma cells (G12; rs = 0.712, p = 0.039) with PFS of patients enrolled in the GLORIA trial, while not reaching significance for frequency of CXCL12+ Mφ/microglia (M12; rs = 0.458, p = 0.223) and CXCL12+ pericytes (P12; rs = 0.559, p = 0.126) (Fig. 3f).