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Related Experiment Videos

Cell surface changes during electromagnetic field exposure.

S H Hamada1, R Witkus, R Griffith

  • 1Biology Department, West Georgia College, Carrollton.

Experimental Cell Biology
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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Chick embryo fibroblasts undergo sequential shape changes and surface alterations when exposed to a constant electric field. These cells migrate towards the cathode, demonstrating directed movement in response to the electric field.

Area of Science:

  • Cell Biology
  • Biophysics
  • Developmental Biology

Background:

  • Fibroblasts are crucial connective tissue cells involved in wound healing and tissue development.
  • Electromagnetic fields (EMF) are increasingly recognized for their potential to influence biological processes.
  • Understanding cellular responses to EMF is vital for applications in regenerative medicine and bioelectricity.

Purpose of the Study:

  • To investigate the morphological and cell surface responses of embryonic fibroblasts to a constant electric field.
  • To characterize the directed migration of fibroblasts under EMF exposure.
  • To elucidate the cellular mechanisms underlying EMF-induced cellular changes.

Main Methods:

  • Culturing of fibroblasts from 5 1/2-day-old chick embryos.

Related Experiment Videos

  • Exposure of cell cultures to a constant electric field (10 V/cm).
  • Microscopic observation and analysis of cell morphology and surface features.

    • Main Results:

    • Fibroblasts exhibited sequential morphological changes: rounding, bipolarization, cylindrical shape, and elongation perpendicular to the electric field.
    • Cells demonstrated directed migration towards the cathode.
    • Significant alterations in cell surface structures were observed, including filopodia and sheet-like contacts on the cathodic side, and retracted processes with focal contacts on the anodic side.

    Conclusions:

    • Embryonic fibroblasts display a distinct and ordered response to a constant electric field.
    • The observed morphological and surface changes are indicative of cellular polarization and directed migration.
    • This study provides insights into the electrotaxis of fibroblasts and their potential for directed movement in biological systems.