Abstract
A method to simultaneously assess the changes in intracellular calcium concentration and cell volume in single cells was developed using the Ca2+-sensitive fluorescent probe Fura-2 and a three-dimensional image-surface reconstruction technique, respectively. Studies with this method showed that Fura-2 loading had no significant effect on the kinetics of A549 human epithelial cell swelling in a hypotonic solution, as well as the volume restoration kinetics. Significant changes in intracellular Ca2+ concentration were not observed in the examined volume modulation range. The results suggest that Ca2+-mediated signaling pathways are not involved in the autoregulation of the cell volume in A549 cells exposed to hypotonic conditions.
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Abbreviations
- RVD:
-
regulatory volume decrease
- DISUR:
-
double image surface reconstruction technique
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Original Russian Text © O.O. Ponomarchuk, F. Boudreault, A.A. Shiyan, G.V. Maksimov, R. Grygorczyk, S.N. Orlov, 2018, published in Biofizika, 2018, Vol. 63, No. 3, pp. 489–495.
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Ponomarchuk, O.O., Boudreault, F., Shiyan, A.A. et al. A Method to Simultaneously Detect Changes in Intracellular Ca2+ Concentration and Cell Volume. BIOPHYSICS 63, 369–374 (2018). https://doi.org/10.1134/S000635091803020X
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DOI: https://doi.org/10.1134/S000635091803020X