Bioengineering Strategies for Corneal Endothelial Cell Injection Therapy: Advances, Challenges, and Clinical
Yura Choi1, Mi-Young Jung1, Eunsun Han1
1Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea.
Bioengineering (Basel, Switzerland)
|November 27, 2025
Summary
Corneal endothelial cell injection therapy offers a minimally invasive alternative to traditional transplants for vision impairment. Advances in bioengineering and cell sourcing show promise for treating corneal blindness.
Area of Science:
- Regenerative Medicine
- Biomaterials Engineering
- Ophthalmology
Background:
- Corneal endothelial dysfunction causes global vision impairment, often treated with donor keratoplasty.
- Donor keratoplasty faces limitations including tissue scarcity, surgical complexity, and graft survival issues.
- Cell-based therapies, particularly corneal endothelial cell (CEC) injection, are emerging as alternatives.
Purpose of the Study:
- To review recent bioengineering advances in CECs injection therapy.
- To analyze cell sourcing, culture optimization, and delivery methods.
- To examine clinical outcomes and future directions for CECs therapy.
Main Methods:
- Review of literature on bioengineering strategies for CECs therapy.
- Analysis of cell sourcing methods: donor tissue, pluripotent stem cells, transdifferentiated somatic cells.
- Evaluation of culture conditions, substrates, and delivery protocols.
Main Results:
- Bioengineering strategies have advanced CECs sourcing, culture, and delivery.
- Optimized methods improve cell adhesion and survival for injection therapy.
- Clinical trials indicate CECs injection therapy's potential for restoring endothelial function.
Conclusions:
- CECs injection therapy is a promising, minimally invasive treatment for corneal blindness.
- Integration of cell biology, biomaterials, and translational medicine is key.
- Further research and clinical translation are needed to establish CECs therapy as a standard treatment.


