Abstract
Based on the pathogenic mechanisms of age-related macular degeneration (AMD), tremendous preclinical and clinical trials have demonstrated that cell transplantation which aim to replace impaired retinal pigment epithelium (RPE) with healthy RPE cells is a promising approach to treat AMD. So far, choices of cell sources mainly are autologous RPE, iris pigment epithelium, fetal RPE, human embryonic stem cell-derived RPE and human induced pluripotent stem cell-derived RPE, and some of them are undergoing clinical researches. Grafting manners in cell-based therapies are various including RPE sheet or RPE-choroid complex transplantation, RPE cell suspension injection, and RPE sheet transplantation with scaffolds. This review is limited to cell-based therapies for RPE that damaged first in the progress of AMD and focus on recent advances in cell sources, transplantation methods, preclinical and clinical trials, and the obstacles that must be overcome. Key words: Macular degeneration/therapy; Retinal pigment epithelium; Cell transplantation; Review
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