In a study, published in Cell Stem Cell, researchers used retinal pigment epithelial stem cells derived from adult postmortem eye tissue in a phase 1/2a clinical trial. In the current study, patients with advanced dry AMD received transplanted stem cells, originally isolated from eye-bank tissues. These adult stem cells were specialized and could only develop into retinal pigment epithelial cells. Six patients received the lowest dose of transplanted stem cells (50,000 cells) through a surgical eye procedure. DOI: 10.1016/j.stem.2025.08.012 Journal information: Cell Stem Cell