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Related Experiment Video

Updated: May 16, 2026

Corneal Tissue Engineering: An In Vitro Model of the Stromal-nerve Interactions of the Human Cornea
07:35

Corneal Tissue Engineering: An In Vitro Model of the Stromal-nerve Interactions of the Human Cornea

Published on: January 24, 2018

A native-like corneal construct using donor corneal stroma for tissue engineering.

Jing Lin1, Kyung-Chul Yoon, Lili Zhang

  • 1Ocular Surface Center, Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States of America.

Plos One
|November 21, 2012
PubMed
Summary

Natural corneal stroma serves as an excellent substrate for tissue engineering, creating a native-like corneal construct. This bioengineered epithelium contains limbal stem cells, showing potential for corneal transplantation and treating blindness.

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Area of Science:

  • Ophthalmology
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Corneal transplantation is crucial for treating blinding diseases.
  • Developing bioengineered corneal equivalents aims to improve transplantation outcomes.
  • Natural corneal stroma offers a promising substrate for creating functional corneal tissue.

Purpose of the Study:

  • To investigate natural corneal stroma as a substrate for constructing a native-like corneal equivalent.
  • To evaluate the morphology, phenotype, regenerative capacity, and transplantation potential of the engineered corneal epithelium.
  • To assess the suitability of this bioengineered construct for clinical applications in corneal reconstruction.

Main Methods:

  • Cultivating human corneal epithelium from donor limbal explants on corneal stromal discs.
  • Utilizing FDA-approved Horizon Epikeratome system for stromal disc preparation.
  • Evaluating constructs via hematoxylin and eosin staining, immunofluorescent staining, a wound healing model, and xeno-transplantation to nude mice.

Main Results:

  • A transparent, stratified epithelium with native-like morphology and structure was rapidly generated.
  • The engineered epithelium expressed differentiation markers (keratin 3, involucrin, connexin 43) and limbal stem/progenitor cell markers (ABCG2, p63).
  • The construct demonstrated rapid regeneration after injury and survived xeno-transplantation, maintaining a multilayered structure and native-like phenotype.

Conclusions:

  • Natural corneal stroma is an optimal substrate for bioengineering native-like corneal constructs.
  • The engineered corneal epithelium possesses characteristics of both corneal and limbal epithelium, including stem cells.
  • This bioengineered corneal construct shows significant potential for clinical use in corneal reconstruction and treating blindness.