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Related Experiment Videos

Dissociated single cells from the inner ear: strial cells.

D J Lim, A Flock

    American Journal of Otolaryngology
    |May 1, 1985
    PubMed
    Summary

    Researchers isolated cochlear cells using enzyme dissociation, preserving their structure for microscopic study. This method offers a new way to examine inner ear cell function and potential damage.

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    Area of Science:

    • Otolaryngology
    • Cell Biology
    • Microscopy

    Background:

    • The stria vascularis in the cochlea is crucial for hearing.
    • Understanding strial marginal and intermediate cells is vital for auditory research.

    Purpose of the Study:

    • To isolate strial marginal and intermediate cells from cochleas.
    • To evaluate the viability and ultrastructure of these isolated cells for further study.

    Main Methods:

    • Enzyme dissociation technique applied to guinea pig and chinchilla cochleas.
    • In vitro light microscopy for cell observation up to 2 hours.
    • Scanning and transmission electron microscopy for ultrastructural analysis.

    Main Results:

    • Successful isolation of strial marginal and intermediate cells.
    • Cells maintained viability for up to 2 hours without significant damage.
    • Electron microscopy confirmed excellent cell shape and organelle preservation.
    • Increased vesiculation observed in marginal cells, suggesting pinocytotic activity.

    Conclusions:

    • Enzyme dissociation is a viable method for isolating viable cochlear strial cells.
    • Isolated cells retain structural integrity for detailed ultrastructural examination.
    • Marginal cell vesiculation may indicate active transport or stress responses.

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