Abstract | BACKGROUND: METHODS: Twenty grey Chinchilla Bastard rabbits were randomly assigned to four groups; neovascularization was induced in groups A, B, and C by alkali cauterization. Seven days later, group A received no cell implantation, non-transfected ARPE-19 cells were implanted subconjunctivally in group B, and PEDF-transfected ARPE-19 cells were implanted subconjunctivally in groups C and D (non-cauterized). In-vivo rPEDF secretion was analyzed by immunoblotting, and ELISA of extracts of conjunctival tissue samples taken at different time points. Digital photographs acquired on days 7, 14, and 21 after cauterization were evaluated for lead vessel length, vascular invasion area, and overall neovascularization rate. RESULTS: At days 14 and 21 after cauterization, significant differences were observed between groups A, B, and C in lead vessel length (day 21: 5.91 ± 0.45, 5.11 ± 1.22, 3.79 ± 0.59 mm, repectively), vascular invasion area (day 21: 35.5 ± 8.65, 34.86 ± 4.92, 19.2 ± 5.03 mm(2) respectively), and rate of corneal neovascularization. Compared to controls, neovascularization was reduced by 37.5 % on day 14 and 47 % on day 21. Analysis of conjunctival tissue extracts showed that rPEDF was secreted by the transplanted PEDF-transfected cells. CONCLUSION:
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Authors | David Kuerten, Sandra Johnen, Nina Harmening, George Souteyrand, Peter Walter, Gabriele Thumann |
Journal | Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
(Graefes Arch Clin Exp Ophthalmol)
Vol. 253
Issue 7
Pg. 1061-9
(Jul 2015)
ISSN: 1435-702X [Electronic] Germany |
PMID | 25690979
(Publication Type: Journal Article)
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Chemical References |
- Eye Proteins
- Nerve Growth Factors
- Serpins
- pigment epithelium-derived factor
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Topics |
- Animals
- Blotting, Western
- Cell Line
- Cell Transplantation
- Conjunctiva
(physiology)
- Corneal Neovascularization
(pathology, prevention & control)
- Disease Models, Animal
- Enzyme-Linked Immunosorbent Assay
- Eye Proteins
(genetics, metabolism)
- Female
- Gene Expression Regulation
(physiology)
- Humans
- Nerve Growth Factors
(genetics, metabolism)
- Rabbits
- Retinal Pigment Epithelium
(cytology, metabolism, transplantation)
- Serpins
(genetics, metabolism)
- Transfection
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