Figure 1

Expression of PDGF family members in primary tumors. In this figure we show the co-expression of receptors and ligand in each sample. Gray boxes indicate positivity, white negativity and line-drawing not done. Summary of the results is: PDGFRα: 15 cases (41.6%) were positive in tumor cells, of these, 3 cases show expression in tumor and stroma cells. Two cases were positive only in stroma (5.5%). PDGFRβ: 19 cases (52.7%) were positive in tumor cells, of these 13 samples show expression in both tumor and stoma cells. Four tumors were positive only in stroma cells (11.1%). PDGFA: 15 cases (60%) were positive at the tumor component, 14 of them in both tumor and stroma; 3 cases (12%) positive only in stroma. PDGFB: All negative