Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock
The aim is to study the effectiveness of lithium chloride for preventing damage to the monolayer of endothelial cells in vitro exposed to serum of patients with septic shock.Material and methods. Serum samples prepared from blood of 5 septic shock patients selected according to «Sepsis-3» criteria a...
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Russian Academy of Medical Sciences
2020-07-01
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doaj-cbdf8028c1194fec92fbdb4870c116e52021-07-28T21:21:58ZrusRussian Academy of Medical SciencesObŝaâ Reanimatologiâ1813-97792411-71102020-07-011639410510.15360/1813-9779-2020-3-94-1051746Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic ShockO. A. Grebenchikov0V. T. Dolgikh1M. D. Prokofiev2I. S. Kasatkina3A. V. Ershov4V. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and RehabilitologyV. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and RehabilitologyV. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and RehabilitologyV. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and RehabilitologyV. A. Negovsky Research Institute of General Reanimatology, Federal Research and Clinical Center of Intensive Care Medicine and RehabilitologyThe aim is to study the effectiveness of lithium chloride for preventing damage to the monolayer of endothelial cells in vitro exposed to serum of patients with septic shock.Material and methods. Serum samples prepared from blood of 5 septic shock patients selected according to «Sepsis-3» criteria and 5 healthy volunteers (control serum) were used in the study. Blood for experiments was withdrawn within 2 hours after the diagnosis of septic shock. The Ea.hy926 endothelial cells were incubated with the serum of a patient with septic shock (toxic serum) or control serum for 3 hours at 37°C without or with lithium chloride at final concentrations of 0.01 mmol/l, 0.1 mmol/l, 1 mmol/l, 10 mmol/l. Lithium chloride was added 1 hour before the serum change. After incubation, the expressions of actin, VE-cadherin and claudin were assessed by immunofluorescent microscopy; the level and degree of phosphorylation of glycogen synthase kinase 3/1 (GSK-3/3) were determined using western blotting.Results. Toxic serum significantly inhibited GSK-3/3 phosphorylation, induced cleavage of VE-cadherin and reduced the claudin inendothelial cells. Toxic serum also altered the shape of endothelial cells: they lost their native polygonal shape and became elongated with gaps between them. Incubation of endothelial cells monolayer with lithium chloride at concentrations equal or higher 1.0 mmol/l almost completely prevented cleavage of claudin, actin and VE-cadherin. When studying the in vitro protection of endothelial cells from effects of toxic serum with lithium chloride, pre-incubation with the drug at a concentration of 1 mmol/l for 1 hour prevented inactivation (dephosphorylation) of GSK-3/3 and even to stimulate its phosphorylation in 1-4 hours after exposure to the serum.Conclusion. The study clearly showed the protective effect of lithium chloride on endothelial cell monolayer by activating phosphorylation of GSK-3/3 (enzyme conversion into inactive form). Moreover, the effect of lithium chloride exhibited a distinct dose-dependent character starting with a concentration of 0.01 mmol/l.https://www.reanimatology.com/rmt/article/view/1923lithium chlorideseptic shockendothelial cellglycogen synthase kinase 3ftgsk-30 |
collection |
DOAJ |
language |
Russian |
format |
Article |
sources |
DOAJ |
author |
O. A. Grebenchikov V. T. Dolgikh M. D. Prokofiev I. S. Kasatkina A. V. Ershov |
spellingShingle |
O. A. Grebenchikov V. T. Dolgikh M. D. Prokofiev I. S. Kasatkina A. V. Ershov Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock Obŝaâ Reanimatologiâ lithium chloride septic shock endothelial cell glycogen synthase kinase 3ft gsk-30 |
author_facet |
O. A. Grebenchikov V. T. Dolgikh M. D. Prokofiev I. S. Kasatkina A. V. Ershov |
author_sort |
O. A. Grebenchikov |
title |
Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock |
title_short |
Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock |
title_full |
Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock |
title_fullStr |
Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock |
title_full_unstemmed |
Protective Effect of Lithium Chloride on EndotheliaL Cells in Septic Shock |
title_sort |
protective effect of lithium chloride on endothelial cells in septic shock |
publisher |
Russian Academy of Medical Sciences |
series |
Obŝaâ Reanimatologiâ |
issn |
1813-9779 2411-7110 |
publishDate |
2020-07-01 |
description |
The aim is to study the effectiveness of lithium chloride for preventing damage to the monolayer of endothelial cells in vitro exposed to serum of patients with septic shock.Material and methods. Serum samples prepared from blood of 5 septic shock patients selected according to «Sepsis-3» criteria and 5 healthy volunteers (control serum) were used in the study. Blood for experiments was withdrawn within 2 hours after the diagnosis of septic shock. The Ea.hy926 endothelial cells were incubated with the serum of a patient with septic shock (toxic serum) or control serum for 3 hours at 37°C without or with lithium chloride at final concentrations of 0.01 mmol/l, 0.1 mmol/l, 1 mmol/l, 10 mmol/l. Lithium chloride was added 1 hour before the serum change. After incubation, the expressions of actin, VE-cadherin and claudin were assessed by immunofluorescent microscopy; the level and degree of phosphorylation of glycogen synthase kinase 3/1 (GSK-3/3) were determined using western blotting.Results. Toxic serum significantly inhibited GSK-3/3 phosphorylation, induced cleavage of VE-cadherin and reduced the claudin inendothelial cells. Toxic serum also altered the shape of endothelial cells: they lost their native polygonal shape and became elongated with gaps between them. Incubation of endothelial cells monolayer with lithium chloride at concentrations equal or higher 1.0 mmol/l almost completely prevented cleavage of claudin, actin and VE-cadherin. When studying the in vitro protection of endothelial cells from effects of toxic serum with lithium chloride, pre-incubation with the drug at a concentration of 1 mmol/l for 1 hour prevented inactivation (dephosphorylation) of GSK-3/3 and even to stimulate its phosphorylation in 1-4 hours after exposure to the serum.Conclusion. The study clearly showed the protective effect of lithium chloride on endothelial cell monolayer by activating phosphorylation of GSK-3/3 (enzyme conversion into inactive form). Moreover, the effect of lithium chloride exhibited a distinct dose-dependent character starting with a concentration of 0.01 mmol/l. |
topic |
lithium chloride septic shock endothelial cell glycogen synthase kinase 3ft gsk-30 |
url |
https://www.reanimatology.com/rmt/article/view/1923 |
work_keys_str_mv |
AT oagrebenchikov protectiveeffectoflithiumchlorideonendothelialcellsinsepticshock AT vtdolgikh protectiveeffectoflithiumchlorideonendothelialcellsinsepticshock AT mdprokofiev protectiveeffectoflithiumchlorideonendothelialcellsinsepticshock AT iskasatkina protectiveeffectoflithiumchlorideonendothelialcellsinsepticshock AT avershov protectiveeffectoflithiumchlorideonendothelialcellsinsepticshock |
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