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[Fe2+ ion effect on Ehrlich ascites tumor cell conductivity and ion permeability]
Biofizika
|May 1, 1982
Summary
Iron (Fe2+) ions decrease cell membrane permeability and ion efflux in EAT cells. This effect intensifies with higher iron concentrations and temperatures, impacting cell suspension impedance.
Area of Science:
- Cell biology
- Biophysics
Context:
- Ehrlich ascites tumor (EAT) cells
- Cell suspension impedance
- Ion efflux
Purpose:
- Investigate the impact of Fe2+ ions on EAT cell membrane properties
- Quantify changes in cell suspension impedance and ion efflux rates
Summary:
- Incubation with Fe2+ ions reduced active and capacitance constituents of EAT cell suspension impedance.
- Fe2+ ion exposure decreased the rate of ion efflux from EAT cells into isotonic sucrose media.
- The observed decrease in impedance and ion efflux correlated positively with Fe2+ ion concentration and temperature.
Impact:
- Provides insights into the biophysical effects of iron on cell membranes.
- Highlights the influence of environmental factors (concentration, temperature) on cellular responses.
- Discusses potential discrepancies with existing experimental models.