Angiogenesis

, Volume 11, Issue 4, pp 361–367

PPARγ ligands, rosiglitazone and pioglitazone, inhibit bFGF- and VEGF-mediated angiogenesis

  • Ahmad Aljada
  • Laura O’Connor
  • Yu-Yen Fu
  • Shaker A. Mousa
Original Paper

Abstract

Objective

To study the effect of peroxisome proliferator-activated receptor-gamma (PPARγ) agonists, pioglitazone and rosiglitazone, on vascular endothelial growth factor (VEGF)- and basic fibroblast growth factor (bFGF)-induced angiogenesis and on endothelial cell migration.

Methods

Chick chorioallantoic membrane (CAM) model was used to evaluate the efficacy of pioglitazone and rosiglitazone on VEGF- and bFGF-induced angiogenesis. In addition, the effect of pioglitazone and rosiglitazone on endothelial cell migration was evaluated using 8 mm pore filter to a feeder layer containing vitronectin as chemoattractant.

Results

Pioglitazone and rosiglitazone inhibited the pro-angiogenic effects of bFGF and VEGF in the CAM model significantly (< 0.001) to the same extent. Endothelial cell migration was also inhibited by both pioglitazone and rosiglitazone (< 0.001).

Conclusions

These results suggest that PPARγ ligands, pioglitazone and rosiglitazone, in addition to their important regulatory role in adipogenesis and inflammation, possess anti-angiogenic properties. Thus, PPARγ ligands may be useful in the treatment of diabetic retinopathy, macular degeneration, and other ocular disorders and may lower the risk to develop cancer in diabetic patients.

Keywords

Peroxisome proliferator-activated receptor-gamma agonist Pioglitazone Rosiglitazone Vascular endothelial growth factor Basic fibroblast growth factor Angiogenesis Endothelial cell migration 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Ahmad Aljada
    • 2
  • Laura O’Connor
    • 1
  • Yu-Yen Fu
    • 2
  • Shaker A. Mousa
    • 1
  1. 1.The Pharmaceutical Research Institute (PRI), Albany College of PharmacyAlbanyUSA
  2. 2.Department of Biomedical SciencesLong Island University, C.W. Post.BrookvilleUSA

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