Longevity News

Photostimulation improves maturation of human photoreceptors

Source: Nature - Biotechnology • Published: 12 Aug 2026, 00:00

Photostimulation improves maturation of human photoreceptors

Reports how rhythmic patterned light during in vitro differentiation enhances structural and functional maturation of stem cell–derived human photoreceptors.

Key Takeaways
  • Rhythmic 40 Hz light flicker increased formation of outer segment–like structures in retinal organoids
  • Light stimulation shifted photoreceptor transcriptional programs toward more mature rod and cone states
  • Stimulated organoids showed stronger downstream neuronal responsiveness and higher photoreceptor protein expression
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