Reconstruction of auto-tissue-engineered lamellar cornea by dynamic culture for transplantation: a rabbit model

PLoS One. 2014 Apr 4;9(4):e93012. doi: 10.1371/journal.pone.0093012. eCollection 2014.

Abstract

To construct an auto-tissue-engineered lamellar cornea (ATELC) for transplantation, based on acellular porcine corneal stroma and autologous corneal limbal explants, a dynamic culture process, which composed of a submersion culture, a perfusion culture and a dynamic air-liquid interface culture, was performed using appropriate parameters. The results showed that the ATELC-Dynamic possessed histological structure and DNA content that were similar to native lamellar cornea (NLC, p>0.05). Compared to NLC, the protein contents of zonula occludens-1, desmocollin-2 and integrin β4 in ATELC-Dynamic reached 93%, 89% and 73%, respectively. The basal cells of ATELC-Dynamic showed a better differentiation phenotype (K3-, P63+, ABCG2+) compared with that of ATELC in static air-lift culture (ATELC-Static, K3+, P63-, ABCG2-). Accordingly, the cell-cloning efficiency of ATELC-Dynamic (9.72±3.5%) was significantly higher than that of ATELC-Static (2.13±1.46%, p<0.05). The levels of trans-epithelial electrical resistance, light transmittance and areal modulus variation in ATELC-Dynamic all reached those of NLC (p>0.05). Rabbit lamellar keratoplasty showed that the barrier function of ATELC-Dynamic was intact, and there were no signs of epithelial shedding or neovascularization. Furthermore, the ATELC-Dynamic group had similar optical properties and wound healing processes compared with the NLC group. Thus, the sequential dynamic culture process that was designed according to corneal physiological characteristics could successfully reconstruct an auto-lamellar cornea with favorable morphological characteristics and satisfactory physiological function.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cells, Cultured
  • Cornea* / cytology
  • Cornea* / physiology
  • Corneal Stroma / cytology
  • Corneal Stroma / physiology
  • Corneal Transplantation*
  • Epithelial Cells / cytology
  • Epithelial Cells / physiology
  • Epithelium, Corneal / cytology
  • Epithelium, Corneal / physiology
  • Female
  • Guided Tissue Regeneration / methods
  • Male
  • Models, Animal
  • Rabbits
  • Swine
  • Tissue Culture Techniques / methods*
  • Tissue Engineering / methods*
  • Wound Healing

Grants and funding

This work was supported by grant No. 2012AA020507 (Z. Wang) from the National High Technology Research and Development Program of China (863 Project), grant No. 81270971 (Z. Wang) from the National Natural Science Foundation of China, grant No. 2011B090400353 (Z. Wang) from Guangdong Province & Ministry of Education Industry-University-Research Institute Collaboration Project of China, grant No. 31000445 (Z. Wu) from the National Natural Science Foundation of China, grant No. 2012PI05 (Z. Wang) and No. 2010Q02 (Z. Wu) from the Fundamental Research Funds of State Key Laboratory of Ophthalmology. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.