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Thomas A. Reh; Photoreceptor Transplantation in Late Stage Retinal Degeneration. Invest. Ophthalmol. Vis. Sci. 2016;57(5):ORSFg1-ORSFg7. doi: 10.1167/iovs.15-17659.
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The recent advances in cell-based therapies for the repair of the pigmented epithelium is providing additional impetus for the translation of photoreceptor transplantation to eventual clinical trials. The prospects for transplantation of photoreceptors as a potential therapy for the treatment of photoreceptor degeneration will depend on successfully addressing many critical issues in preclinical studies. Although most of the studies that have carried out transplants of photoreceptors have primarily used normal mice, there have been recent reports that have also shown some success following transplantation to mouse models of retinitis pigmentosa. However, while these results are promising, there are several key issues that require further investigation in order to better understand the optimum timing for transplantation, given the extensive remodeling of the retina that occurs in late stage disease.
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