NEI funded group finds cell subgroups that may spur retinal cell transplantation success

A new understanding of retinal cell development may help pave the way for future retina transplants, which could restore sight to people whose conditions currently have no effective treatments, according to research funded by the National Eye Institute conducted at the Perelman School of Medicine at the University of Pennsylvania. Their findings were published in Frontiers in Cell and Developmental Biology.

Currently, the transplantation of healthy photoreceptor cells-neurons that detect light in the retina at the back of the eye-is largely ineffective because very few of the donated cells successfully connect to restore vision. However, the treatment remains promising if an ideal cell population that is more likely to form connections could be found.

By identifying three different developmental stages of photoreceptor cells in mice-which the study group believes may have analogous cell populations in humans-the researchers hope to determine which cell population is most capable of forming neuronal connections in the eye. Their findings may help researchers identify which cells are most likely to survive transplantation and integrate into the eye, leading to improved treatment outcomes.

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Reference:

Yano JJ, Wei Z, Gajjar KJ, Barati-Stec KT, Yang E and Uyhazi KE (2026) Lineage tracing reveals photoreceptor precursor cell subpopulations that contribute to murine retinogenesis. Front. Cell Dev. Biol. 14:1814134. doi: 10.3389/fcell.2026.1814134