Abstract
We injected varying numbers of retinal Muller glia into the rabbit vitreous in an established model of traction retinal detachment. We used indirect ophthalmoscopy to observe the changes elicited during the following 1 month. Although the severity of the tractional changes increased with increasing numbers of the glial cells, the pathology produced stabilized within the 1st week of injury. Muller glia were less effective at eliciting retinal detachments than retinal pigment epithelial cells (RPE) or mixtures of glia and RPE. Intravitreal tissue membranes derived from the glia differed morphologically from those derived from RPE. The glial membranes had fewer fibroblast-like cells, synthesized less extracellular matrix, and showed lower intravitreal cell proliferation, as determined by3H-thymidine radioautography. Our findings indicate that membranes composed only of Muller glial cells promote less severe retinal pathology than those membranes composed of RPE or mixed cell types.
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This study was supported in part by National Eye Institute grant EY04799 (J.M.B.), Core Center Grant EY01931 (J.M.B.), an unrestricted grant from Research to Prevent Blindness, Inc., and the Good Samaritan Foundation for Ophthalmic Research (Portland, Oregon)
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Peters, M.A., Burke, J.M., Clowry, M. et al. Development of traction retinal detachments following intravitreal injections of retinal Muller and pigment epithelial cells. Graefe's Arch Clin Exp Ophthalmol 224, 554–563 (1986). https://doi.org/10.1007/BF02154745
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DOI: https://doi.org/10.1007/BF02154745