Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/28110
Title: Ion channels in volume regulation of clonal kidney cells
Authors: Silva, M. B. da
Costa, V. M. A.
Pereira, V. R. A.
Albertim, G. J. B. de
Melo, E. B. B. de
Bezerra, D. P.
Silva, R. P. da
Rodrigues, C. G.
Carneiro, C. M. M.
Yuldasheva, L. N.
Krasilnikov, O. V.
Affilliation: Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Laboratório de Imunopatologia Keizo Asami – LIKA. Recife, PE, Brazil.
Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Recife, PE, Brasil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Physiology and Pharmacology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Federal University of Pernambuco. Department of Biophysics and Radiobiology. Recife, PE, Brazil.
Abstract: Objectives:  Clonal kidney cells (Vero cells) are extensively utilized in the manufacture of biological preparations for disease diagnostics and therapeutics and also in preparation of vaccines. In all cells, regulation of volume is an essential function coupled to a variety of physiological processes and is a topic of interest. The objective here was to investigate involvement of ion channels in the process of volume regulation of Vero cells. Methods:  Involvement of ion channels in cell volume regulation was studied using video‐microscopy and flow cytometry. Pharmacologically unaltered cells of different sizes, which are presumably at different phases of the cell cycle, were used. Results:  Ion transport inhibitors altered all phases of regulatory volume decrease (RVD) of Vero cells, rate of initial cell swelling, Vmax and volume recovery. Effects were dependent on type of inhibitor and on cell size (cell cycle phase). Participation of aquaporins in RVD was suggested. Inhibitors decelerated growth, arresting Vero cells at the G0/G1 phase boundary. Electrophysiological study confirmed presence of volume‐activated Cl− channels and K+ channels in plasmatic membranes of the cells. Conclusion:  Vero cells of all sizes maintained the ability to recover from osmotic swelling. Activity of ion channels was one of the key factors that controlled volume regulation and proliferation of the cells.
DeCS: 4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid / farmacologia
Animais
Ciclo Celular / efeitos de drogas
Proliferação Celular / efeitos de drogas
Tamanho da Célula / efeitos de drogas
Células Cultivadas
Cercopithecus aethiops
Citometria de Fluxo
Gliburide / farmacologia
Canais Ion / antagonistas e inibidores
Canais Ion / metabolismo
Rim / citologia
Rim / metabolismo
Microscopia
Nitrobenzoatos / farmacologia
Tetraetilamónio / farmacologia
Células Vero
Issue Date: 2010
Citation: DA SILVA, M. B. et al. Ion channels in volume regulation of clonal kidney cells. Cell Proliferation, v. 43, n. 6, p. 529–541, dez. 2010.
DOI: 10.1111/j.1365-2184.2010.00702.x
ISSN: 1365-2184
Copyright: restricted access
Appears in Collections:PE - IAM - Artigos de Periódicos

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