Stem cell-derived retinal patch is shown to survive two years post-implantation, function without triggering immune rejection

A retinal stem cell patch developed through a collaboration of researchers at UC Santa Barbara, University of Southern California and California Institute of Technology continues to make progress in its bid to secure approval from the Food and Drug Administration. The latest milestone? Results finding that after two years, not only can the implant survive, but also it does not elicit clinically detectable inflammation or signs of immune rejection, even without long-term immunosuppression.

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