Electrical properties of normal and transformed mammalian cells

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Abstract

The transmembrane potential difference, Em, and DC membrane resistance were measured in 3T3 and polyoma virus-transformed 3T3 cells. Em was a function of cell density and was -12 and -25 mV for the normal and transformed cells, respectively. The external concentrations of K+, Na+, and Cl were varied in order to study the nature of the differences between the two cell types. The relative permeability of ions was calculated to be: PNa/PK, 1.0; PCl/PK, 1.88; PNa/PCl, 0.53 for 3T3 cells, and 0.27, 1.75, and 0.15 for the transformed cells. In contrast to the normal cells, PNa/PK varied as a function of the external K+ concentration for the transformed cells. It was emphasized that the manipulation of variables directly affecting the electrical properties of cells also involves the indirect manipulation of a network of interconnected physiological determinants. © 1984, The Biophysical Society. All rights reserved.

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APA

Killion, J. J. (1984). Electrical properties of normal and transformed mammalian cells. Biophysical Journal, 45(3), 523–528. https://doi.org/10.1016/S0006-3495(84)84189-2

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