For the patients who had baseline and follow-up tumor samples available, we measured the variation of mRNA level during treatment of 12 growth factors (EGF, FGF1, FGF2, FIGF, HGF, IGF1, PDGFA, PGF, TGFB1, VEGFA, VEGFC, and VEGF121). This evidence concerns the gene PDGFA and neoplasm.