PMID: 9192171Jun 1, 1997Paper

Keratocyte migration and peptide growth factors: the effect of PDGF, bFGF, EGF, IGF-I, aFGF and TGF-beta on human keratocyte migration in a collagen gel

Current Eye Research
J L AndresenN Ehlers

Abstract

Peptide growth factors are known accelerators of corneal wound healing, probably mediated through increased proliferation of the cells; however, information about their effect on keratocyte motility is lacking. The influence of peptide growth factors on keratocyte migratory activity was investigated, using the following growth factors: platelet derived growth factor (PDGF-BB), epidermal growth factor (EGF), acidic fibroblast growth factor (aFGF), basic fibroblast growth factor (bFGF), insulin-like growth factor-I (IGF-I) and transforming growth factor-beta-1 (TGF-beta 1). Keratocytes were seeded on gels of type 1 collagen, growth factor added, and the cells left to migrate for 72 hours. Subsequently, the number of keratocytes at the different levels in the collagen gel was evaluated by optically sectioning the gel at 20 microns, intervals, with an inverted phase contrast microscope. PDGF, EGF and bFGF at 10 ng/ml, all increased the number of keratocytes at the different levels of the gel as compared to a non-stimulated control (p < 0.05 or p < 0.01, students t-test). TGF-beta proved to be a strong inhibitor of keratocyte migration, decreasing the number of keratocytes observed at every level in the gel (p < 0.05 and p < 0.01, s...Continue Reading

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May 29, 2002·Molecular Pathology : MP·Q H SongV Trinkaus-Randall
Oct 14, 2011·BMC Complementary and Alternative Medicine·Fadhilah Zainal AbidinNorzana Abd Ghafar
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