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[Endothelial cell transplantation in a model]

K Engelmann1, D Drexler, J Draeger

  • 1Universitäts-Augenklinik Hamburg.

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|April 1, 1993
PubMed
Summary

Cultured endothelial cells can form a monolayer on donor corneas unsuitable for transplant. Porcine cells achieved higher densities than human cells, suggesting potential for corneal regeneration therapies.

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Area of Science:

  • Ophthalmology
  • Tissue Engineering
  • Cell Biology

Context:

  • Human donor corneas unsuitable for transplantation present a challenge.
  • Developing methods for corneal regeneration is crucial for treating eye diseases.
  • In vitro cell culture techniques offer potential solutions for corneal repair.

Purpose:

  • To investigate the potential of using in vitro cultured corneal endothelial cells to form a monolayer on denuded human donor corneas.
  • To compare the efficacy of human and porcine corneal endothelial cells in forming a regenerative monolayer.
  • To optimize cell seeding and adhesion techniques for corneal endothelial cell transplantation.

Summary:

  • Human donor corneas, unsuitable for transplantation, were processed into substrates for seeding with in vitro cultured human or porcine corneal endothelial cells.
  • Only endothelial-like cells formed a monolayer, while fibroblast-like cells did not redifferentiate.
  • Maximal cell densities achieved were 3,500 cells/mm² for porcine and 1,800 cells/mm² for human cells.
  • Mechanical preparation of the subendothelial matrix and slight centrifugation improved cell adhesion and seeding.
  • Fibroblast growth factor (FGF) did not affect proliferation post-transplantation but aided monolayer regeneration.

Impact:

  • This research provides a foundation for developing cell-based therapies for corneal endothelial dysfunction.
  • The findings highlight the potential of using decellularized corneas as a scaffold for endothelial cell transplantation.
  • Optimized cell seeding and the use of porcine cells show promise for achieving higher cell densities and improved corneal regeneration.

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