Transforming ocular surface stem cell research into successful clinical practice.

Area of Science:

• Ophthalmology
• Regenerative Medicine
• Stem Cell Biology

Background:

• Adult stem cells discovered at the human corneo-scleral limbus are crucial for lifelong corneal epithelial cell generation.
• This process maintains a stable, refractive corneal surface, essential for clear vision.
• Limbal stem cell dysfunction is linked to ocular surface diseases, including blinding conditions.

Purpose of the Study:

• To review the fundamental biology of the limbus and the principles of limbal stem cell transplantation.
• To present an evidence-based algorithm for clinical application in ocular surface disease.
• To discuss novel findings on factors affecting transplanted stem cell survival and potential alternative stem cell sources.

Main Methods:

• Review of basic science research and clinical advancements in ocular surface biology.
• Analysis of surgical techniques and outcomes in limbal stem cell transplantation.
• Development of a clinical algorithm based on disease laterality, severity, and concurrent procedures.

Main Results:

• Limbal stem cell transplantation has evolved into a simpler and more predictable surgical technique.
• Therapeutic approaches utilizing limbal stem cells have successfully treated previously incurable blinding ocular surface diseases like ocular burns.
• Factors influencing post-transplantation stem cell survival and function are being identified.

Conclusions:

• Limbal stem cell transplantation is a key therapeutic strategy for ocular surface disease.
• Future research directions include optimizing stem cell survival and exploring alternative stem cell sources.
• Continued basic science and clinical research is vital for advancing the field.