Retinal pigment epithelium precursor cells
Human embryonic stem cells differentiating into precursors cells of the retina. Nuclei are in blue. Pink indicates the presence of Pax6, a protein found in retinal tissue. The retinal pigment epithelium is the tissue responsible for macular degeneration, the most common cause of blindness.
This photo was taken by David Buchholz in the lab of Dennis Clegg at the University of California, Santa Barbara.
Learn more about CIRM-funded stem cell research: www.cirm.ca.gov