Glutathione-dependent regulation of platelet aggregation with neutrophils and tumor cells

It is shown that in the presence of reduced glutathione at low concentrations (1–5 μM) the extent of platelet aggregation with neutrophils increases and the lag period of platelet aggregation induced by tumor cells decreases. At the same time in the presence of reduced glutathione at high concentrat...

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Published in:Biophysics (Oxford) 2012-02, Vol.57 (1), p.76-80
Main Authors: Gorudko, I. V., Shamova, E. V., Shishlo, L. M., Mukhortova, A. V., Prokhorova, V. I., Panasenko, O. M., Gusev, S. A., Cherenkevich, S. N.
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Language:English
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Biological and Medical Physics
Biophysics
Blood platelets
Cell Biophysics
Cellular biology
Leukocytes
Peptides
Physics
Physics and Astronomy
Tumors
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container_title Biophysics (Oxford)
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creator Gorudko, I. V.
Shamova, E. V.
Shishlo, L. M.
Mukhortova, A. V.
Prokhorova, V. I.
Panasenko, O. M.
Gusev, S. A.
Cherenkevich, S. N.
description It is shown that in the presence of reduced glutathione at low concentrations (1–5 μM) the extent of platelet aggregation with neutrophils increases and the lag period of platelet aggregation induced by tumor cells decreases. At the same time in the presence of reduced glutathione at high concentration (3 mM) the extent of platelet aggregation with neutrophils decreases, and the lag period of platelet aggregation induced by tumor cells increases. It is established that glutathione-dependent regulation of the intercellular contact formation between platelets and neutrophils depends on the ratio of glutathione oxidized and reduced forms: at fixed total glutathione concentration of 5 μM, increase of glutathione redox potential from −175 mV to 0 mV led to reduction in platelet aggregation with neutrophils. Thus, it is shown for the first time, that GSH has priming effect on the platelet aggregation with neutrophils and tumor cells, which may contribute to the regulation of inflammatory diseases and cancer.
doi_str_mv 10.1134/S0006350912010095
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subjects Biological and Medical Physics
Biophysics
Blood platelets
Cell Biophysics
Cellular biology
Leukocytes
Peptides
Physics
Physics and Astronomy
Tumors
title Glutathione-dependent regulation of platelet aggregation with neutrophils and tumor cells
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