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Related Experiment Videos

Embryonic cell motility can be guided by physiological electric fields.

R Nuccitelli, C A Erickson

    Experimental Cell Research
    |August 1, 1983
    PubMed
    Summary

    Embryonic quail fibroblasts exhibit electric field sensitivity, orienting and migrating towards the cathode. This galvanotaxis and orientation behavior offers insights into embryonic development and cell motility research.

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    Area of Science:

    • Developmental biology
    • Cell biology
    • Biophysics

    Background:

    • Embryonic cells exhibit complex migratory behaviors crucial for development.
    • Electric fields are increasingly recognized as signaling cues in biological systems.

    Purpose of the Study:

    • To investigate the sensitivity of migratory embryonic quail somitic fibroblasts to direct current electric fields.
    • To characterize the galvanotaxis and orientation responses of these cells.

    Main Methods:

    • Exposure of quail somitic fibroblasts to controlled electric fields (varying strengths).
    • Microscopic observation and measurement of cell orientation, migration direction, and elongation.
    • Determination of threshold field strengths and response times.

    Main Results:

    • Fibroblasts oriented perpendicular to electric field lines within 5 minutes.
    • A threshold field of 150 mV/mm induced significant orientation over 90 minutes.
    • Cells exhibited cathode-directed migration (galvanotaxis) with a similar low threshold.
    • Cell elongation was observed at field strengths above 400 mV/mm.

    Conclusions:

    • Embryonic quail fibroblasts demonstrate significant sensitivity and directed responses to electric fields.
    • This cellular galvanotaxis and orientation may play a role in embryonic cell guidance in vivo.
    • Electric fields can be utilized in vitro to control cell morphology and motility for research purposes.

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