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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mimmun</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская иммунология</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Immunology (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1563-0625</issn><issn pub-type="epub">2313-741X</issn><publisher><publisher-name>SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15789/1563-0625-2013-5-457-464</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-662</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>МЕХАНИЗМЫ УСИЛЕНИЯ ТРАНСЭНДОТЕЛИАЛЬНОЙ МИГРАЦИИ МОНОЦИТОПОДОБНЫХ КЛЕТОК THP-1 ПОД ВЛИЯНИЕМ КОМПОНЕНТОВ ПИОГЕННОГО СТРЕПТОКОККА</article-title><trans-title-group xml:lang="en"><trans-title>REGULATORY MECHANISMS OF HUMAN MONOCYTIC THP-1 CELLS TRANSENDOTHELIAL MIGRATION INDUCED BY STREPTOCOCCUS PYOGENES COMPONENTS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Старикова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Starikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., старший научный сотрудник отделения иммунологии</p><p>197376, Россия, Санкт-Петербург, ул. Акад. Павлова, 12. Тел.: 8 (812) 234-16-69</p></bio><bio xml:lang="en"><p>PhD, Senior Research Associate, Department of Immunology</p><p>197376, Acad. Pavlov str., 12. Phone: 7 (812) 234-16-69</p></bio><email xlink:type="simple">Starickova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, научный сотрудник отдела иммунологии</p></bio><bio xml:lang="en"><p>Postgraduate Student, Research Associate, Department of Immunology</p></bio><email xlink:type="simple">Starickova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Актуреева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aktureeva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>Student</p></bio><email xlink:type="simple">Starickova@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Burova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., ведущий научный сотрудник отдела микробиологии</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Leading Research Associate, Department of Microbiology</p></bio><email xlink:type="simple">Starickova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фрейдлин</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Freidlin</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., член-корр. РАМН, заведующая отделом иммунологии</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Corresponding Member, Russian Academy of Medical Sciences, Chief, Department of Immunology</p></bio><email xlink:type="simple">Starickova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Научно-исследовательский институт экспериментальной медицины» СЗО РАМН, Санкт-Петербург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный технологический институт (технический университет), Санкт-Петербург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State Institute of Technology (Technical University), St. Petersburg</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>25</day><month>07</month><year>2014</year></pub-date><volume>15</volume><issue>5</issue><fpage>457</fpage><lpage>464</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Старикова Э.А., Лебедева А.М., Актуреева Н.А., Бурова Л.А., Фрейдлин И.С., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Старикова Э.А., Лебедева А.М., Актуреева Н.А., Бурова Л.А., Фрейдлин И.С.</copyright-holder><copyright-holder xml:lang="en">Starikova E.A., Lebedeva A.M., Aktureeva N.A., Burova L.A., Freidlin I.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.mimmun.ru/mimmun/article/view/662">https://www.mimmun.ru/mimmun/article/view/662</self-uri><abstract><p>Резюме. Усиление процесса трансэндотелиальной миграции лейкоцитов в условиях инфекции и воспаления происходит благодаря повышению уровня экспрессии адгезионных молекул иммуноглобулинового суперсемейства ICAM-1 и VCAM-1 и усилению секреции воспалительных хемокинов эндотелиальными клетками. Ранее в наших исследованиях в модели in vitro было показано, что компоненты пиогенного стрептококка значительно усиливали интенсивность трансэндотелиальной миграции моноцитоподобных клеток линии ТНР-1, однако при этом на эндотелиальных клетках не изменялся уровень экспрессии адгезионных молекул. Цель работы состояла в изучении механизмов, лежащих в основе усиления трансэндотелиальной миграции клеток THP-1 в присутствии супернатанта стрептококковых клеток (ССК). ССК проявлял в отношении клеток ТНР-1 свойства хемоаттрактанта. ССК усиливал хемотаксис и трансмиграцию клеток ТНР-1, в то время как 24-часовая преинкубация клеток ТНР-1 в присутствии ССК, напротив, ослабляла оба эти процесса, что сопровождалось снижением уровня фосфорилирования киназы фокальных адгезионных контактов. Преинкубация клеток ТНР-1 с коклюшным токсином снижала интенсивность их трансмиграции в присутствии ССК до уровня спонтанной. Полученные результаты свидетельствуют о том, что усиление трансмиграции клеток ТНР-1 под влиянием ССК обусловлено его хемоаттрактантным действием в отношении мигрирующих клеток.</p></abstract><trans-abstract xml:lang="en"><p>Abstract. Enhanced transendothelial migration of leukocytes during infection and inflammation occurs due to increased expression of ICAM-1 and VCAM-1 adherence molecules of the immunoglobulin superfamily, and increased secretion of chemokines by endothelial cells. Our previous in vitro studies with human monocytic THP-1 cells showed that some components of Streptococcus pyogenes caused a sufficient enhancement of transendothelial cell migration. However, expression levels of adhesion molecules remained unchanged on endothelial cells. The purpose of the work was to study mechanisms underlying the enhanced transendothelial migration of THP-1 cells treated with supernatante of streptococcal cells (SSC). SSC exhibited chemoattractive activity towards THP-1 cells. SSC increased chemotaxis and transmigration of THP-1 cells. Meanwhile, a 24-hour preincubation of THP-1 cells with SSC caused suppression of the both effects, being accompanied by decreased level of Focal Adhesion Kinase phosphorylation. Preincubation of THP-1 cells with pertussis toxin did reduce the transmigration intensity in presence of the SSC down to the level of spontaneous migration. These results suggest that increased transmigration of THP-1 cells under the influence of SSC may be determined by its chemoattractive action upon the migrating cells.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>клетки THP-1</kwd><kwd>трансэндотелиальная миграция</kwd><kwd>Streptococcus pyogenes</kwd></kwd-group><kwd-group xml:lang="en"><kwd>THP-1 cells</kwd><kwd>transendothelial migration</kwd><kwd>Streptococcus pyogenes</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Лебедева А.М., Старикова Э.А., Бурова Л.А., Фрейдлин И.С. Компоненты Streptococcus pyogenes изменяют активность адгезии моноцитов к эндотелиальным клеткам // Медицинская иммунология. – 2011. –Т. 13, № 4-5. – С. 321-322. Lebedeva A.M., Starikova E.A., Burova L.A., Freydlin I.S. 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