Fibroblast Growth Factors-9 (FGF-9) is a 23.4 kDa member of the fibroblast Growth Factors with 208 amino acid residues. FGF-9 is an important role embryonic development, cell proliferation, cell differentiation and cell migration in cell functions. It can regulate bone development, glial cell growth and differentiation during development, angiogenesis, differentiation and survival of neuronal cells.