Ocular surface stem cells and disease: current concepts and clinical applications

Area of Science:

• Ophthalmology
• Stem Cell Biology
• Regenerative Medicine

Background:

• Corneal and conjunctival epithelial stem cells maintain ocular surface health and regeneration.
• Limbal stem cells are crucial for corneal epithelium, while conjunctival stem cells are found in the forniceal region.
• Limbal stem cell deficiency causes severe ocular surface disease, leading to vision loss.

Purpose of the Study:

• To review the role of ocular surface stem cells in homeostasis and regeneration.
• To discuss current and future therapeutic strategies for limbal stem cell deficiency.
• To highlight the potential of bioengineered tissue-equivalents for ocular surface repair.

Main Methods:

• Literature review of stem cell biology and ocular surface disease.
• Analysis of therapeutic approaches including stem cell transplantation.
• Evaluation of emerging regenerative medicine techniques.

Main Results:

• Limbal stem cell deficiency results in epithelial defects, inflammation, scarring, and vision impairment.
• Limbal stem cell transplantation aims to restore the corneal stem cell population.
• Bioengineered ocular surface tissue-equivalents show promising results for tissue replacement.

Conclusions:

• Ocular surface stem cells are vital for maintaining and regenerating the eye's epithelial layer.
• Advanced therapies like stem cell transplantation and tissue engineering offer viable options for treating ocular surface disorders.
• Regenerative medicine holds significant promise for the future of ocular tissue repair and vision restoration.