Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line

Microvesicles (MVs) are small (100-1000 nm) subcellular structures produced by both motionless and activated cells that can transfer molecules to target cells, and regulate physiological and pathological processes. MVs of leukocyte origin, in particular those produced by natural killer cells (NK cel...

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Autores principales:	K. L. Markova, V. A. Mikhailova, A. V. Korenevsky, Yu. P. Milyutina, V. V. Rodygina, E. P. Aleksandrova, A. S. Markov, O. A. Balabas, S. A. Selkov, D. I. Sokolov
Formato:	article
Lenguaje:	RU
Publicado:	SPb RAACI 2020
Materias:	natural killer cells endothelium microvesicles granzyme b caspases proliferation migration Immunologic diseases. Allergy RC581-607
Acceso en línea:	https://doaj.org/article/62255549c9034b30a8b0eaa20bde5625
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spelling	oai:doaj.org-article:62255549c9034b30a8b0eaa20bde56252021-11-18T08:03:49ZMicrovesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line1563-06252313-741X10.15789/1563-0625-MPB-1877https://doaj.org/article/62255549c9034b30a8b0eaa20bde56252020-04-01T00:00:00Zhttps://www.mimmun.ru/mimmun/article/view/1877https://doaj.org/toc/1563-0625https://doaj.org/toc/2313-741XMicrovesicles (MVs) are small (100-1000 nm) subcellular structures produced by both motionless and activated cells that can transfer molecules to target cells, and regulate physiological and pathological processes. MVs of leukocyte origin, in particular those produced by natural killer cells (NK cells), remain the least studied population of MVs. NK cells can change the functional activity of endothelial cells (ECs) and are involved in regulating angiogenesis. The ability of NK cell-derived MVs to influence the functionality of ECs is understudied currently. We aimed to study the effect of MVs produced by NK cells of the NK-92 cell line on the phenotype, caspase activity, proliferation and migration of ECs of the EA.Hy926 cell line. We cultured ECs in the presence of MVs derived from the NK-92 cell line, and then used flow cytometry to assess changes in EC phenotype, intracellular protein transfer from MVs to ECs, and the relative death of ECs. We used western blot analysis to evaluate the expression of granzyme B in NK cells and in the MVs that they produced, as well as the expression of granzyme B, caspases, extracellular-regulated kinase (ERK) and protein kinase B (AKT) in ECs. We also assessed the proliferation and migration of ECs in the presence of MVs derived from cells of the NK-92 cell line. The results revealed significant differences in the proteomic profiles of cells of the NK-92 cell line and their MV product. Contact between ECs and MVs derived from cells of the NK-92 cell line is accompanied by the following events: a) expression of granzyme B in ECs, b) activation of caspase-9 and caspase-3, with partial EC death, c) appearance of the panleukocyte marker CD45 on ECs, d) decrease in CD105 expression, and increase in CD34 and CD54 expression, and e) inhibition of EC migration. Transfer of ERK (but not AKT) from MVs derived from cells of the NK-92 cell line to ECs, at a concentration 10 times lower than that which causes EC death, leads to an increase in EC proliferation.K. L. MarkovaV. A. MikhailovaA. V. KorenevskyYu. P. MilyutinaV. V. RodyginaE. P. AleksandrovaA. S. MarkovO. A. BalabasS. A. SelkovD. I. SokolovSPb RAACIarticlenatural killer cellsendotheliummicrovesiclesgranzyme bcaspasesproliferationmigrationImmunologic diseases. AllergyRC581-607RUMedicinskaâ Immunologiâ, Vol 22, Iss 2, Pp 249-268 (2020)
institution	DOAJ
collection	DOAJ
language	RU
topic	natural killer cells endothelium microvesicles granzyme b caspases proliferation migration Immunologic diseases. Allergy RC581-607
spellingShingle	natural killer cells endothelium microvesicles granzyme b caspases proliferation migration Immunologic diseases. Allergy RC581-607 K. L. Markova V. A. Mikhailova A. V. Korenevsky Yu. P. Milyutina V. V. Rodygina E. P. Aleksandrova A. S. Markov O. A. Balabas S. A. Selkov D. I. Sokolov Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
description	Microvesicles (MVs) are small (100-1000 nm) subcellular structures produced by both motionless and activated cells that can transfer molecules to target cells, and regulate physiological and pathological processes. MVs of leukocyte origin, in particular those produced by natural killer cells (NK cells), remain the least studied population of MVs. NK cells can change the functional activity of endothelial cells (ECs) and are involved in regulating angiogenesis. The ability of NK cell-derived MVs to influence the functionality of ECs is understudied currently. We aimed to study the effect of MVs produced by NK cells of the NK-92 cell line on the phenotype, caspase activity, proliferation and migration of ECs of the EA.Hy926 cell line. We cultured ECs in the presence of MVs derived from the NK-92 cell line, and then used flow cytometry to assess changes in EC phenotype, intracellular protein transfer from MVs to ECs, and the relative death of ECs. We used western blot analysis to evaluate the expression of granzyme B in NK cells and in the MVs that they produced, as well as the expression of granzyme B, caspases, extracellular-regulated kinase (ERK) and protein kinase B (AKT) in ECs. We also assessed the proliferation and migration of ECs in the presence of MVs derived from cells of the NK-92 cell line. The results revealed significant differences in the proteomic profiles of cells of the NK-92 cell line and their MV product. Contact between ECs and MVs derived from cells of the NK-92 cell line is accompanied by the following events: a) expression of granzyme B in ECs, b) activation of caspase-9 and caspase-3, with partial EC death, c) appearance of the panleukocyte marker CD45 on ECs, d) decrease in CD105 expression, and increase in CD34 and CD54 expression, and e) inhibition of EC migration. Transfer of ERK (but not AKT) from MVs derived from cells of the NK-92 cell line to ECs, at a concentration 10 times lower than that which causes EC death, leads to an increase in EC proliferation.
format	article
author	K. L. Markova V. A. Mikhailova A. V. Korenevsky Yu. P. Milyutina V. V. Rodygina E. P. Aleksandrova A. S. Markov O. A. Balabas S. A. Selkov D. I. Sokolov
author_facet	K. L. Markova V. A. Mikhailova A. V. Korenevsky Yu. P. Milyutina V. V. Rodygina E. P. Aleksandrova A. S. Markov O. A. Balabas S. A. Selkov D. I. Sokolov
author_sort	K. L. Markova
title	Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
title_short	Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
title_full	Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
title_fullStr	Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
title_full_unstemmed	Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line
title_sort	microvesicles produced by natural killer cells of the nk-92 cell line affect the phenotype and functions of endothelial cells of the ea.hy926 cell line
publisher	SPb RAACI
publishDate	2020
url	https://doaj.org/article/62255549c9034b30a8b0eaa20bde5625
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Microvesicles produced by natural killer cells of the NK-92 cell line affect the phenotype and functions of endothelial cells of the EA.Hy926 cell line

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