Related Experiment Video
Updated: Jul 13, 2026
09:47
Generation of Retinal Organoids from Healthy and Retinal Disease-Specific Human-Induced Pluripotent Stem Cells
Published on: December 9, 2022
Retinal organoids and stem cell therapy for vision restoration: current progress, persistent challenges, and future
Bahaa Jaber1, Mariam Ayad Abd2, Shahad Mohammed Dhiaa Younis3
1Faculty of Allied Medical Sciences, Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman, Jordan.
International Immunopharmacology
|July 11, 2026
Summary
Stem cell therapies and retinal organoids offer hope for vision restoration in degenerative retinal diseases. Despite challenges like integration and survival, advancements in optogenetics and bioprinting pave the way for retinal regeneration.
Area of Science:
- Ophthalmology
- Regenerative Medicine
- Stem Cell Biology
Background:
- Millions suffer from untreatable degenerative retinal diseases like retinitis pigmentosa (RP) and age-related macular degeneration.
- Traditional therapies are ineffective against irreversible retinal damage.
- Stem cell treatments and retinal organoids (ROs) show promise for vision restoration.
Purpose of the Study:
- To comprehensively assess advancements and challenges in stem cell therapies (pluripotent stem cells [PSCs], mesenchymal stem cells [MSCs], retinal progenitor cells [RPCs], retinal pigment epithelium [RPE]) for retinal regeneration.
- To examine the gap between structural engraftment and functional integration of transplanted cells.
- To discuss innovative strategies like optogenetics, 3D bioprinting, and extracellular vesicle therapies.
Main Methods:
- Review of clinical studies and preclinical trials involving PSCs, MSCs, RPCs, and RPE grafts.
- Analysis of retinal organoid (RO) technology for disease modeling and cellular replacement.
- Exploration of emerging therapeutic approaches including optogenetics, 3D bioprinting, and extracellular vesicles.
Main Results:
- Stem cell-derived grafts (RPE, MSCs, RPCs) demonstrate neuroprotective and regenerative potential.
- Retinal organoids mimic retinal structure, aiding disease modeling and drug screening.
- Challenges persist, including cell survival, functional integration, immune rejection, and standardization.
Conclusions:
- Despite significant obstacles, effective retinal regeneration is progressing towards clinical reality.
- Innovative strategies are crucial for overcoming current limitations in vision restoration.
- A roadmap for future research highlights the potential of stem cell-based therapies.
