passages.id: split_5_test_2618_passage
passages.type: progene_text
passages.text: As transforming growth factors beta ( TGF beta ) and basic fibroblasts growth factor ( bFGF ) together regulate extracellular matrix deposition , we evaluated TGF beta(1) , TGF beta(3) and bFGF production by Crouzon and normal fibroblasts .