Müller glia

…that is characterized by changes in Müller glia and microglia, and at least some of these changes accelerate vision loss in advanced blinding diseases. The specific triggers, hierarchy of molecular steps, and cellular interactions that promote these changes initially are still largely obscure. However, it is generally thought that Müller glia and microglia activation is secondary to distress signals and cellular debris following programmed cell death of photoreceptor or other neurons in the retina.

Thomas Reh and Juliette Wohlschlegel discuss their research on converting human Müller glia into retinal neurons with host Martin Pera. The conversation traces how regeneration in fish and frogs motivated experiments in mammals, then examines genetic reprogramming of cells derived from human fetal tissue or retinal organoids. Their study of ASCL1-induced neurogenesis provides a basis for discussing the remaining biological and translational challenges of retinal regeneration. The work concerns experimental cellular models and does not establish a treatment for vision loss.