EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS
There is a growing body of data about the cytopathic effect of bacterial arginine deiminase on human endothelial cells, but the precise mechanisms of endothelial dysfunction caused by the activity of the enzyme remain poorly understood. Activity of arginine deiminase causes arginine depletion in the...
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| Format: | Article |
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St. Petersburg branch of the Russian Association of Allergologists and Clinical Immunologists
2017-10-01
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| Series: | Медицинская иммунология |
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| Online Access: | https://www.mimmun.ru/mimmun/article/view/1351 |
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| author | E. A. Starikova J. T. Mammedova L. A. Burova A. V. Sokolov V. B. Vasilyev I. S. Freidlin |
| author_facet | E. A. Starikova J. T. Mammedova L. A. Burova A. V. Sokolov V. B. Vasilyev I. S. Freidlin |
| author_sort | E. A. Starikova |
| collection | DOAJ |
| description | There is a growing body of data about the cytopathic effect of bacterial arginine deiminase on human endothelial cells, but the precise mechanisms of endothelial dysfunction caused by the activity of the enzyme remain poorly understood. Activity of arginine deiminase causes arginine depletion in the microenvironment of the host organism cells. In view that arginylation of beta-actin regulates actin cytoskeleton structure and cell motility, we proposed that the cytopathic effect of arginine deiminase may be associated with disruption of actin in the cytoskeleton of endothelial cells. The aim of this study was to investigate the effect of arginine deiminase from S. pyogenes on migration and actin cytoskeleton structure of the human endothelial cells, line EA.hy926. The supernatant of sonicated S. pyogenes M49-16, its isogenic mutant with a deletion of the arginine deiminase gene (S. pyogenes M49-16delAD), supernatant of sonicated S. pyogenes M22, and arginine deiminase isolated from the latter strain were used. The effect of bacterial factors on migration activity of endothelial cells was studied in the model of "wound healing" in vitro. To analyze the influence of bacterial factors on the actin cytoskeleton structure, cells were stained with phalloidin-rhodamine. It was shown that supernatants of destroyed S. pyogenes, as well as arginine deiminase significantly reduced the migration activity of endothelial cells and altered the structure of their actin cytoskeleton. The supernatants of destroyed S. pyogenes M49-16delAD with deleted gene of arginine deiminase showed a significantly reduced ability to suppress cell migration as compared with the supernatant of sonicated S. pyogenes M49-16. No significant differences were revealed in the structure of actin filaments in cells cultured in the presence of supernatants of destroyed S. pyogenes M19-16, and cells cultured in the presence of isogenic mutant S. pyogenes M4916delAD. Adding exogenous arginine to the cells cultured with supernatants of destroyed S. pyogenes did not restore their migratory activity and the structure of their actin cytoskeleton. However, if arginine deficiency caused by the activity of arginine deiminase was compensated, endothelial cells migration activity was restored, and the structure of actin cytoskeleton was recovered. A decrease of migration activity of endothelial cells under the influence of streptococcal arginine deiminase was due to the disruption of actin cytoskeleton structure. |
| format | Article |
| id | doaj-art-c2fc26cd98b74b9e8d4148ce8b751462 |
| institution | Kabale University |
| issn | 1563-0625 2313-741X |
| language | Russian |
| publishDate | 2017-10-01 |
| publisher | St. Petersburg branch of the Russian Association of Allergologists and Clinical Immunologists |
| record_format | Article |
| series | Медицинская иммунология |
| spelling | doaj-art-c2fc26cd98b74b9e8d4148ce8b7514622025-08-20T04:00:09ZrusSt. Petersburg branch of the Russian Association of Allergologists and Clinical ImmunologistsМедицинская иммунология1563-06252313-741X2017-10-0119552152810.15789/1563-0625-2017-5-521-528947EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLSE. A. Starikova0J. T. Mammedova1L. A. Burova2A. V. Sokolov3V. B. Vasilyev4I. S. Freidlin5Institute of Experimental Medicine.St. Petersburg State Technological University.Institute of Experimental Medicine.Institute of Experimental Medicine; St. Petersburg State University.Institute of Experimental Medicine; St. Petersburg State University.Institute of Experimental Medicine; St. Petersburg State University; Pavlov First St. Petersburg State Medical University.There is a growing body of data about the cytopathic effect of bacterial arginine deiminase on human endothelial cells, but the precise mechanisms of endothelial dysfunction caused by the activity of the enzyme remain poorly understood. Activity of arginine deiminase causes arginine depletion in the microenvironment of the host organism cells. In view that arginylation of beta-actin regulates actin cytoskeleton structure and cell motility, we proposed that the cytopathic effect of arginine deiminase may be associated with disruption of actin in the cytoskeleton of endothelial cells. The aim of this study was to investigate the effect of arginine deiminase from S. pyogenes on migration and actin cytoskeleton structure of the human endothelial cells, line EA.hy926. The supernatant of sonicated S. pyogenes M49-16, its isogenic mutant with a deletion of the arginine deiminase gene (S. pyogenes M49-16delAD), supernatant of sonicated S. pyogenes M22, and arginine deiminase isolated from the latter strain were used. The effect of bacterial factors on migration activity of endothelial cells was studied in the model of "wound healing" in vitro. To analyze the influence of bacterial factors on the actin cytoskeleton structure, cells were stained with phalloidin-rhodamine. It was shown that supernatants of destroyed S. pyogenes, as well as arginine deiminase significantly reduced the migration activity of endothelial cells and altered the structure of their actin cytoskeleton. The supernatants of destroyed S. pyogenes M49-16delAD with deleted gene of arginine deiminase showed a significantly reduced ability to suppress cell migration as compared with the supernatant of sonicated S. pyogenes M49-16. No significant differences were revealed in the structure of actin filaments in cells cultured in the presence of supernatants of destroyed S. pyogenes M19-16, and cells cultured in the presence of isogenic mutant S. pyogenes M4916delAD. Adding exogenous arginine to the cells cultured with supernatants of destroyed S. pyogenes did not restore their migratory activity and the structure of their actin cytoskeleton. However, if arginine deficiency caused by the activity of arginine deiminase was compensated, endothelial cells migration activity was restored, and the structure of actin cytoskeleton was recovered. A decrease of migration activity of endothelial cells under the influence of streptococcal arginine deiminase was due to the disruption of actin cytoskeleton structure.https://www.mimmun.ru/mimmun/article/view/1351s. pyogenesarginine deiminaseendothelial cellsarginine metabolismcell migrationcytoskeleton |
| spellingShingle | E. A. Starikova J. T. Mammedova L. A. Burova A. V. Sokolov V. B. Vasilyev I. S. Freidlin EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS Медицинская иммунология s. pyogenes arginine deiminase endothelial cells arginine metabolism cell migration cytoskeleton |
| title | EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS |
| title_full | EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS |
| title_fullStr | EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS |
| title_full_unstemmed | EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS |
| title_short | EFFECT OF ARGININE DEIMINASE FROM STREPTOCOCCUS PYOGENES ON CYTOSKELETON STRUCTURE AND MIGRATION ACTIVITY OF HUMAN ENDOTHELIAL CELLS |
| title_sort | effect of arginine deiminase from streptococcus pyogenes on cytoskeleton structure and migration activity of human endothelial cells |
| topic | s. pyogenes arginine deiminase endothelial cells arginine metabolism cell migration cytoskeleton |
| url | https://www.mimmun.ru/mimmun/article/view/1351 |
| work_keys_str_mv | AT eastarikova effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells AT jtmammedova effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells AT laburova effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells AT avsokolov effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells AT vbvasilyev effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells AT isfreidlin effectofargininedeiminasefromstreptococcuspyogenesoncytoskeletonstructureandmigrationactivityofhumanendothelialcells |