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Immunological features of human corneal endothelial cells

F Wang1

  • 1Department of Ophthalmology, University of Hamburg, Hamburg, Germany. fanwang_hh@yahoo.com

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|June 17, 2008
PubMed

Insights

Human corneal endothelial cells (HCEC) function as antigen-presenting cells, activating T lymphocytes. This suggests HCEC play a role in corneal transplant rejection.

Area of Science:

  • Immunology
  • Ophthalmology
  • Cell Biology

Background:

  • Human corneal endothelial cells (HCEC) are crucial for corneal clarity.
  • Their role in immune responses, particularly in transplantation, is not fully understood.

Purpose of the Study:

  • To investigate the immunological function of HCEC.
  • To determine if HCEC can act as antigen-presenting cells.

Main Methods:

  • Immunohistochemical analysis of HLA-DP, -DQ, -DR, CD40, CD80, and CD86 expression on HCEC.
  • Co-culture of HCEC with peripheral blood mononuclear cells (PBMCs).
  • Assessment of lymphocyte activation using fluorescence-activated cell sorting (FACS) analysis, with and without gamma-interferon (IFN) pretreatment of HCEC.

Main Results:

  • HCEC demonstrated the ability to activate T lymphocytes in a co-culture system.
  • Gamma-interferon (IFN) pretreatment significantly increased the expression of HLA-DP, -DQ, -DR, and CD40 on HCEC.
  • Costimulatory molecule CD80 was expressed on HCEC.

Conclusions:

  • HCEC possess characteristics of antigen-presenting cells.
  • HCEC may contribute to the immune rejection of corneal transplants.
  • These findings highlight the immunological relevance of HCEC in ocular transplantation.
Abstract

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