Induced Pluripotent Stem Cell-Derived Corneal Cells: Current Status and Application.

Area of Science:

• Ophthalmology
• Regenerative Medicine
• Stem Cell Biology

Background:

• Corneal diseases like LSCD and bullous keratopathy cause blindness due to corneal cell deficiency.
• Current regenerative therapies face limitations due to inadequate cell sources.
• Induced pluripotent stem cells (iPSCs) offer a potential solution for unlimited, autologous corneal cell generation.

Purpose of the Study:

• To review the potential of iPSCs in corneal research and regenerative medicine.
• To discuss differentiation protocols for iPSCs towards corneal lineages.
• To highlight challenges and opportunities for clinical translation of iPSC-based therapies.

Main Methods:

• Review of existing literature on iPSC differentiation and corneal development.
• Analysis of feeder-free, xeno-free, and well-defined differentiation protocols.
• Discussion of iPSC applications in disease modeling, drug testing, and regenerative medicine.

Main Results:

• iPSCs provide a versatile cell source with significant differentiation potential for corneal cell generation.
• Protocols recapitulating early corneal development are crucial for effective iPSC differentiation.
• HLA-homozygous iPSC banks offer cost-effective allogeneic treatment alternatives.

Conclusions:

• iPSCs hold significant promise for treating corneal blindness, offering advantages over other stem cell sources.
• Further research is needed to overcome challenges in clinical translation, including cost and scalability.
• Standardized, clinically relevant differentiation protocols are essential for advancing iPSC-based corneal therapies.