Journal
EXPERIMENTAL EYE RESEARCH
Volume 90, Issue 3, Pages 376-381Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.exer.2009.11.003
Keywords
proliferative vitreoretinopathy; growth factors; platelet-derived growth factor; platelet-derived growth factor receptor; signal transduction
Categories
Funding
- NIH [EY012509]
- NATIONAL EYE INSTITUTE [R01EY012509] Funding Source: NIH RePORTER
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Proliferative vitreoretinopathy, a disease process occurring in the setting of a rhegmatogenous retinal detachment, is thought to develop as a result of exposure of retinal cells to vitreous. Vitreous contains many growth factors, and platelet-derived growth factor (PDGF) has been considered a major contributor to PVR. Evaluation of both PDGF and PDGF receptors (PDGFRs) as potential therapeutic targets in the context of a rabbit model of PVR revealed that PDGFR-based approaches protected from PVR, whereas neutralizing PDGFs was a much less effective strategy. The basis for these observations appears to reflect that fact that the PDGFR could be activated by a wide spectrum of vitreal agents that are outside of the PDGF family. Furthermore, blocking signaling events by which the non-PDGFs indirectly activated PDGF a receptor (PDGFR alpha) protected rabbits from developing PVR. These studies demonstrate that the best therapeutic targets for PVR are not PDGFs, but PDGFRa and certain signaling events required for indirectly activating PDGFR alpha. (C) 2009 Elsevier Ltd. All rights reserved.
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