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Related Experiment Videos

3-D computer models of human keratocytes

M E Rock1, M N Moore, J A Anderson

  • 1Ophthalmology Research Laboratory, National Vision Research Institute, San Diego, CA 92121.

The CLAO Journal : Official Publication of the Contact Lens Association of Ophthalmologists, Inc
|January 1, 1995
PubMed
Summary

Three-dimensional models of human keratocytes revealed distinct morphological differences and cell-matrix interactions in corneal disease. These findings highlight variations in cell structure and behavior linked to conditions like keratoconus.

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Area of Science:

  • Ophthalmology
  • Cell Biology
  • Biomedical Imaging

Background:

  • Human keratocytes are crucial corneal stromal cells.
  • Understanding their morphology and interaction with the extracellular matrix is vital for corneal health.
  • Corneal diseases, such as keratoconus, can alter keratocyte structure and function.

Purpose of the Study:

  • To construct and analyze three-dimensional (3-D) models of human keratocytes.
  • To investigate morphological differences and cell/matrix interactions in normal and diseased corneas.
  • To visualize keratocyte behavior in relation to Bowman's layer disruptions.

Main Methods:

  • Serial high voltage electron micrographs (HVEM) were acquired from human keratocytes.
  • Micrographs were digitized using HVEM-3D software and a digitizing tablet.

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  • 3-D models were generated and analyzed for surface and volume data using SYNU software.

    • Main Results:

    • Three distinct 3-D models were created: two from keratoconus keratocytes near Bowman's layer (BL) disruptions, one from keratoconus keratocytes away from BL disruptions, and one from a normal cultured keratocyte.
    • Striking differences in keratocyte morphology were observed.
    • Variations in cell/matrix interactions were evident, particularly in relation to corneal disease and BL integrity.

    Conclusions:

    • 3-D modeling from HVEM provides detailed insights into keratocyte structure.
    • Corneal disease, specifically keratoconus, is associated with significant alterations in keratocyte morphology and their interaction with the corneal matrix.
    • These findings contribute to understanding the cellular basis of corneal pathologies.