Retinal cell transplants are considered to be an attractive approach for treating blindness. Question is, where do you source the cells? An international research team of scientists from Singapore’s Agency for Science, Technology and Research (A*STAR), the Icahn School of Medicine at Mount Sinai in New York and Germany’s Eye Clinic Sulzbach is using a type of stem cell in the eye to grow the pigmented layer of retina that’s essential for vision. The approach is showing promise in monkeys. The findings suggest that these retinal pigment epithelium (RPE) stem cell-derived RPE, or hRPESC-RPE, may be a useful source for cell replacement therapies to treat RPE-related blindness caused by diseases such as macular degeneration, the researchers suggest. The results are published in the journal Stem Cell Reports. RPE is a layer of tissue that supports the neurosensory retina and is critical for vision. An estimated 200 million people live with diseases associated with RPE dysfunction, incl...