Additionally, growth factors such as insulin-like growth factor 1 (IGF1), basic fibroblast growth factor (bFGF), vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), and transforming growth factor-β (TGF-β) can also recruit MSCs into the tumor environment [32–34]. Here, FGF2 is linked to neoplasm.