, Volume 6, Issue 1, pp 47–54 | Cite as

Cell-based and direct gene transfer-induced angiogenesis via a secreted chimeric fibroblast growth factor-1 (sp-FGF-1) in the chick chorioallantoic membrane (CAM)

  • Reza ForoughEmail author
  • Xinyu Wang
  • Luis A. Martinez-Lemus
  • Dimitri Thomas
  • Zhe Sun
  • Kouros Motamed
  • Janet L. Parker
  • Gerald A. Meininger


Fibroblast growth factor-1 (FGF-1) is a potent angiogenic factor; its structure lacks a signal peptide for secretion. We previously reported that the overexpression of a secreted version of FGF-1 (sp-FGF-1) in microvascular endothelial cells (ECs) enhances cell migration [Partridge et al. J Cell Biochem 2000; 78(3): 487]. In the current study, we have examined the angiogenic effects of sp-FGF-1 in chicken chorioallantoic membranes (CAMs). Two methods of examining the effects of sp-FGF-1 in CAMs were used: cell-mediated transfection via bovine ECs and direct gene transfection. In the cell-mediated gene transfection, those eggs that were implanted with a gelatin sponge seeded with ECs stably transfected to over-express sp-FGF-1 protein showed a significant increase in angiogenesis inside the sponge when compared to eggs treated with vector control-transfected ECs. In the direct gene transfer, eggs received sp-FGF-1 showed a significant increase in vascularization when compared to eggs received vector alone plasmids. These CAM models are useful both for studying molecular mechanisms of angiogenesis and for developing better gene therapy strategies.

angiogenesis CAM assay FGF-1 gelatin sponge signal peptide transfection 


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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Reza Forough
    • 1
    Email author
  • Xinyu Wang
    • 2
  • Luis A. Martinez-Lemus
    • 2
  • Dimitri Thomas
    • 2
  • Zhe Sun
    • 2
  • Kouros Motamed
    • 3
  • Janet L. Parker
    • 2
  • Gerald A. Meininger
    • 2
  1. 1.Department of Medical Physiology and Cardiovascular Research Institute, College of MedicineThe Texas A&M University System Health Science CenterCollege StationUSA
  2. 2.Department of Medical Physiology and Cardiovascular Research Institute, College of MedicineThe Texas A&M University System Health Science CenterCollege StationUSA
  3. 3.Vascular Biology Center and Department of PathologyMedical College of GeorgiaAugustaUSA

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