Retinal Pigment Epithelium Trophic Factors And Retinal Preservation - Kolomeyer, Anton M.;Sugino, Ilene K.;Zarbin, Marco A.
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Age-related macular degeneration (AMD) is the leading cause of blindness among persons over age 50 in the industrial world. We hypothesized that abnormal trophic factor production may compromise retinal survival, and fetal retinal pigment epithelial (RPE) cells may be better for transplantation purposes than adult RPE cells. Trophic factor levels in conditioned media (CM) were quantified by multiplex ELISA. Degree of retinal preservation was assessed biochemically. Isobaric tag for relative and absolute quantification (iTRAQ) was used to identify retina-preserving molecules. Confocal…mehr

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Produktbeschreibung
Age-related macular degeneration (AMD) is the leading cause of blindness among persons over age 50 in the industrial world. We hypothesized that abnormal trophic factor production may compromise retinal survival, and fetal retinal pigment epithelial (RPE) cells may be better for transplantation purposes than adult RPE cells. Trophic factor levels in conditioned media (CM) were quantified by multiplex ELISA. Degree of retinal preservation was assessed biochemically. Isobaric tag for relative and absolute quantification (iTRAQ) was used to identify retina-preserving molecules. Confocal microscopy assessed retinal morphology. Media isolated from AMD vs. control donor eyes were equally effective at promoting retinal preservation. Adult RPE cells may not be as useful for cell transplantation treatment of AMD retina as fetal RPE cells. iTRAQ identified insulin-growth factor binding protein-3, TGF-beta, hepatoma-derived growth factor, and others as potential retina-preserving proteins. Fetal RPE-CM preserved retinal morphology. Subretinal transplantation of fetal RPE cells may be more effective than intraocular injections of trophic factors at maintaining long-term retinal viability.
Autorenporträt
Anton Kolomeyer was born in Moscow, Russia in 1982 and moved to the United States in 1994. He received a BA with Honors from Rutgers University in Molecular Biology and Biochemistry in 2003, and MD and PhD degrees from University of Medicine and Dentistry of New Jersey in 2012. Anton is pursuing Ophthalmology residency at University of Pittsburgh.