alexa In vivo monitoring of VEGF-induced retinal damage in the Kimba mouse model of retinal neovascularization.
Genetics & Molecular Biology

Genetics & Molecular Biology

Journal of Molecular and Genetic Medicine

Author(s): Ali Rahman IS, Li CR, Lai CM, Rakoczy EP

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Abstract PURPOSE: To monitor retinal and vascular changes associated with neovascularization, which were generated through photoreceptor-specific overexpression of human vascular endothelial growth factor (hVEGF), in transgenic trVEGF029 (Kimba) mice. MATERIALS AND METHODS: The Spectralis Heidelberg Retina Angiography and Optical Coherence Tomography (HRA+OCT) imaging device was used to track changes in the retina and retinal vasculature of Kimba mouse eyes (n = 32) and control C57Bl/6J mouse eyes (n = 20) at 4, 8, 12, 16, and 20 weeks of age. RESULTS: Retinal vascular leakage, focal dilated vessel, vessel tortuosity, attenuated vessel, venous beading, capillary dropout, retinal non-perfusion, neovascularization, and focal retinal detachment were observed in Kimba mouse eyes. Through track changes, we detected edema in the peripheral part of the retina of 2/32 Kimba mouse eyes examined. The retinae of the Kimba mice were significantly thinner than control mice retinae at all ages of the mice assessed (p < 0.01). CONCLUSIONS: In vivo monitoring of retinal vascular and neural retinal changes in the Kimba mice using the Spectralis HRA+OCT imaging device allowed us to assess and track VEGF-induced damages in great detail and in real-time. Real-time monitoring of these changes can be used to study the interplay between VEGF overexpression and other molecular factors and to monitor dynamic retinal changes following therapeutic intervention. This article was published in Curr Eye Res and referenced in Journal of Molecular and Genetic Medicine

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