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Related Experiment Videos

Quantitative analysis of tight junctions during ciliary epithelium development.

P Arguillère, A Patey, M Hirsch

    Experimental Eye Research
    |March 1, 1986
    PubMed
    Summary

    During ciliary body development, tight junctions change significantly. These morphological shifts in tight junctions may alter blood-aqueous barrier properties in developing eye tissues.

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    Area of Science:

    • Ophthalmology
    • Cell Biology
    • Developmental Biology

    Background:

    • Tight junctions in the ciliary epithelium form the blood-aqueous barrier.
    • These junctions are well-characterized in adults but poorly understood during development.

    Purpose of the Study:

    • To investigate morphological changes in tight junctions during ciliary process development.
    • To determine if tight junction patterns change during the morphogenesis of ciliary processes.

    Main Methods:

    • Analysis of tight junction morphology during ciliary body development in rats.
    • Utilizing techniques to examine junctional depth, fibril number, particle density, and specific structures like 'complex strands'.

    Main Results:

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  • Junctional depth and the number of superimposed junctional fibrils decrease during development.
  • P-face intramembranous particle density increases within and outside junctional domains.
  • Complex strands are abundant in early stages and decrease in adults.

    • Conclusions:

    • Tight junctions are dynamic and non-stable during ciliary body development.
    • Morphological modifications of tight junctions correlate with changing barrier properties in developing ocular tissues.