title: Basic fibroblast growth factor as a potential stent coating material inducing endothelial cell proliferation.
abstract: OBJECTIVE
  The use of drug-eluting stents has reduced the incidence of in-stent restenosis following percutaneous coronary intervention; however, almost all drugs eluting from polymers on stents induce antiproliferative effects on vascular endothelial and vascular smooth muscle cells. Due to injury of the endothelium and delayed reendothelialization, the risk of thrombosis increases over time. Enhancing rapid reendothelialization after stent placement is important for solving these problems. Basic fibroblast growth factor (bFGF) is one of the most important growth factors involved in vascular lesion formation. In this study, we evaluated the potential of bFGF as a stent coating promoting endothelial cell proliferation.
  
  
  METHODS
  Human umbilical vein endothelial cells (HUVECs) and human aortic smooth muscle cells (HASMCs) were cultured with various doses of bFGF in vitro, and the effects of bFGF on the degree of cell proliferation and migration were monitored. We also investigated the effects of bFGF on the protein expression of endothelial nitric oxide synthase (eNOS) in HUVECs using Western blotting.
  
  
  RESULTS
  Cell proliferation and migration were promoted in HUVECs by bFGF in a dose- and time-dependent manner. On the other hand, bFGF stimulation had little effect on the HASMCs. Basic FGF increased the eNOS protein levels in the HUVECs, with a maximum at 10 ng/mL followed by a decline at 100 ng/mL.
  
  
  CONCLUSIONS
  Basic FGF is a possible candidate stent coating and/or eluting drug material stimulating endothelial cell proliferation and early reendothelialization without excessive vascular smooth muscle cell proliferation.
authors.affiliation: Department of Radiology, Toho University Sakura Medical Center.
authors.forename: Noriko
authors.initials: N
authors.lastname: Kitamura
authors.forename: Terumitsu
authors.initials: T
authors.lastname: Hasebe
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Atsushi
authors.initials: A
authors.lastname: Hotta
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Suzuki
authors.forename: Takuji
authors.initials: T
authors.lastname: Yamagami
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Terada
mesh_terms: D001011:Aorta / Q000187:drug effects / Q000378:metabolism / Q000473:pathology*; D002465:Cell Movement; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D054855:Drug-Eluting Stents; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology*; D006083:Graft Occlusion, Vascular / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D061307:Human Umbilical Vein Endothelial Cells / Q000187:drug effects / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D009131:Muscle, Smooth, Vascular / Q000187:drug effects / Q000378:metabolism / Q000473:pathology*
chemical_list: D016222:Fibroblast Growth Factor 2