Inhibition of experimental angiogenesis of cornea by somatostatin

  • Pei Chang Wu
  • , Chi Chang Liu
  • , Chih Hsin Chen
  • , Hsi Kung Kou
  • , Su Chin Shen
  • , Cheng Yuan Lu
  • , Wen Ying Chou
  • , Ming Tse Sung
  • , Lin Cheng Yang*
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

38 Scopus citations

Abstract

Background: This study evaluated the inhibitory activity of somatostatin 14 on the angiogenesis of cornea in vivo. Methods: Corneal neovascularization was induced with a pellet containing 90 ng of basic fibroblast growth factor (bFGF) in a rat corneal pocket model. Three kinds of pellets were made containing bFGF plus somatostatin (SST) 0 ng, 20 ng and 200 ng for the control group, group 1 and group 2, respectively. Neovascularization was observed biomicroscopically from day 4 to day 8, and the corneas were then examined for changes in histology. Quantitation of angiogenesis in the cornea was accomplished by caliper and image analysis. Results: The 200-ng dose of SST showed significant inhibition of both length and area of neovascularization on day 7 (0.62±0.11 mm vs 1.29±0.16 mm, 0.50±0.16 mm2 vs 1.35±0.29mm2, group 2 vs control; P <0.05). The 20 ng of somatostatin did not demonstrate any significant inhibition of neovascularization compared with the control group. Conclusion: Our study demonstrated that SST 14 can reduce bFGF-induced corneal angiogenesis. This shows the potential value of somatostatin in the treatment of corneal neovascularization.

Original languageEnglish
Pages (from-to)63-69
Number of pages7
JournalGraefe's Archive for Clinical and Experimental Ophthalmology
Volume241
Issue number1
DOIs
StatePublished - 01 01 2003
Externally publishedYes

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