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Related Experiment Videos

Cellular changes in cultured lenses.

R Peltz, K Pezzella

    In Vitro
    |September 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Frog lens epithelial cells cultured in Medium 199 showed better structural integrity and outgrowth than those in L-15 medium. This highlights medium differences impacting cell behavior and nuclear transfer outcomes.

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    Area of Science:

    • Ophthalmology
    • Cell Biology
    • Developmental Biology

    Background:

    • The frog lens epithelium maintains normal structure through an orderly, single-layered arrangement.
    • Lens epithelial cells undergo DNA synthesis and mitosis, crucial for lens maintenance.
    • Previous studies utilized frog lens epithelial cell nuclei for nuclear transfer experiments.

    Purpose of the Study:

    • To investigate structural deviations in frog lens epithelium after culture in two different media.
    • To compare the effects of L-15 medium and Medium 199 on lens epithelial cell behavior and morphology.
    • To assess how culture media influence lens epithelial cell structure relevant to nuclear transfer.

    Main Methods:

    • Culture of entire frog lenses and capsular explants.

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  • Observation of general and specific structural changes in epithelial cells.
  • Comparative analysis of cell distribution, nuclear shape, and outgrowth in L-15 and Medium 199.

    • Main Results:

    • Cultured lens epithelium exhibited multilayered plaques and invasion of lens fibers.
    • Fibroblast-like cells appeared in cell-depleted areas and at epithelial sheet edges.
    • Medium 199 (without serum) better maintained normal lens structure and promoted greater epithelial outgrowth than L-15 medium (without serum).
    • Differences in cell behavior were not attributable to sugars, pH, or CO2.

    Conclusions:

    • Medium 199 supports superior frog lens epithelial cell structure and outgrowth compared to L-15 medium.
    • Observed structural changes in cultured lens epithelium may impact nuclear transfer experiment outcomes.
    • Culture medium selection is critical for preserving lens epithelial cell integrity in vitro.