FGF18 and neoplasm: Significant DEGs (|log2 (fold change)| >4) in this pathway included FGF13, FGF12, FGF18, MMP2, and MMP9. FGF13, FGF12, and FGF18 are members of the fibroblast growth factor (FGF) family, which are involved in a variety of biological processes, including cell proliferation, tumor growth, and invasion.