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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/0235-2990-2022-67-1-2-4-8</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-883</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>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Experimental Research</subject></subj-group></article-categories><title-group><article-title>Активность фагоцитов крови в ответ на воздействие штаммов Staphylococcus aureus, устойчивых к действию метициллина</article-title><trans-title-group xml:lang="en"><trans-title>Phagocyte Activity in Response to Exposure to Methicillin-Resistant Staphylococcus aureus Strains</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>Коленчукова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolenchukova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коленчукова Оксана Александровна — доктор биологических наук, доцент, ведущий  научный  сотрудник лаборатории молекулярно-клеточной физиологии и патологии ФИЦ КНЦ СО РАН, НИИ МПС – обособленное  подразделение ФИЦ КНЦ СО  РАН.</p><p>ул. Партизана Железняка 3 Г, Красноярск, 660022.</p></bio><bio xml:lang="en"><p>Oksana A. Kolenchukova — D. Sc. in biology, Associate  Professor, Institute for Fundamental Biology and Biotechnologies of Siberian  Federal  University  of the  Ministry  of Education and  Science  of  the  Russian  Federation, Federal  Research Center  «Krasnoyarsk Science  Center  of the Siberian  Branch of the Russian  Academy  of Sciences».</p><p>3 Г Partizana Zheleznyaka st., Krasnoyarsk, 660022.</p></bio><email xlink:type="simple">Kalina-chyikova@mail.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>Беленюк</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Belenuk</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Беленюк Василий Дмитриевич — младший научный  сотрудник  лаборатории молекулярно клеточной физиологии и патологии ФИЦ КНЦ СО РАН, НИИ МПС – обособленное  подразделение ФИЦ КНЦ СО  РАН.</p><p>Красноярск.</p></bio><bio xml:lang="en"><p>Vasily  D. Belenuk  — Junior  Researcher, Federal  Research Center  «Krasnoyarsk Science  Center  of the Siberian  Branch of the Russian  Academy  of Sciences».</p><p>3 Г Partizana Zheleznyaka st., Krasnoyarsk, 660022.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биологии и биотехнологии Сибирского федерального университета Минобрнауки РФ; Научно-исследовательский институт медицинских проблем Севера, Федеральный исследовательский центр «Красноярский научный  центр СО  РАН»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Fundamental Biology and Biotechnologies of Siberian Federal University  of the Ministry of Education and Science  of the Russian Federation; Federal Research Center «Krasnoyarsk Science  Center of the Siberian Branch of the Russian Academy  of Sciences»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинских проблем Севера, Федеральный исследовательский центр «Красноярский научный  центр СО  РАН»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center «Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>15</day><month>04</month><year>2022</year></pub-date><volume>67</volume><issue>1-2</issue><fpage>4</fpage><lpage>8</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коленчукова О.А., Беленюк В.Д., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Коленчукова О.А., Беленюк В.Д.</copyright-holder><copyright-holder xml:lang="en">Kolenchukova O.A., Belenuk V.D.</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.antibiotics-chemotherapy.ru/jour/article/view/883">https://www.antibiotics-chemotherapy.ru/jour/article/view/883</self-uri><abstract><p>Исследование посвящено изучению фагоцитарной активности нейтрофильных гранулоцитов, моноцитов и эозинофилов крови при воздействии метициллинорезистентных штаммов бактерии Staphylococcus aureus. Объектами исследования служили нейтрофильные гранулоциты, моноциты и эозинофилы крови, выделенные у здоровых людей и штаммы бактерии S.aureus, резистентные и чувствительные к метициллину (MRSA и MSSA). Функции фагоцитоза (фагоцитарное число и фагоцитарный индекс) оценивали с помощью FITC-меченых бактерий. Анализ окрашенных клеток проводили на проточном цитофлуориметре FC-500 (BeckmanCoulter, USA) цельной периферической крови. Исследование фагоцитоза показало, что в ответ на MRSA процент нейтрофилов, вступивших в фагоцитоз, и среднее число бактерий, находящихся внутриклеточно, увеличивается относительно чувствительных штаммов. В ответ  на воздействие MRSA фагоцитарный индекс в большей степени повышен у моноцитов с фенотипом CD14+CD16¯, при этом фагоцитарное число выше в неклассических популяциях моноцитов CD14+CD16+ и CD14lowCD16+. Таким образом, можно отметить, что классический тип моноцитов CD14+CD16¯ быстрее активируется на MRSA, но эффективность фагоцитоза снижена. Эозинофилы крови также активно реагируют на MRSA. Таким образом, при индукции MRSA установлены изменения в функциональной активности нейтрофильных гранулоцитов, моноцитов и эозинофилов периферической крови. В результате приобретения резистентности к антибиотикам изменяется рецепторный аппарат бактерий вследствие модификации клеточной стенки.</p></abstract><trans-abstract xml:lang="en"><p>The research focuses on the study of phagocyte activity of blood neutrophilic granulocytes, monocytes, and eosinophils under the exposure to methicillin-resistant strains of Staphylococcus aureus bacteria. The subjects of the research were represented by blood neutrophilic granulocytes, monocytes, and eosinophils, isolated from healthy people, as well as methicillin-resistant and methicillin-sensitive S.aureus bacteria strains  (MRSA and MSSA). Phagocytosis functions (phagocytic number and phagocytic index)  were estimated by FITC-labeled bacteria. The analysis of stained cells was performed using  FC-500 flow cytofluorimeter (Beckman Coulter,  USA) for whole  peripheral blood. Phagocytosis research  resulted in the following findings. In response to MRSA, the percentage of neutrophils involved in phagocytosis and average  number of bacteria being  present inside the cells  increase as compared to those within  sensitive strains. In response to MRSA exposure, the phagocytic index  is higher  in monocytes with CD14+CD16¯phenotype. At the same time, phagocytic number is higher in non-classic populations of monocytes CD14+CD16+and CD14lowCD16+. Moreover, it should be noted that the classical type of monocytes CD14+CD16¯tends to be activated faster in regard to MRSA, but phagocytosis efficiency is lowered. Blood eosinophils also actively respond to MRSA. Thus, changes in functional activity of neutrophilic granulocytes, monocytes, and eosinophils in peripheral blood were established during MRSA induction. The bacterial receptor apparatus changes due to the modification of cellular wall as a result of acquired resistance to antibiotics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нейтрофильные гранулоциты</kwd><kwd>моноциты</kwd><kwd>эозинофилы</kwd><kwd>фагоцитоз</kwd><kwd>Staphylococcus aureus</kwd><kwd>метициллинорезистентность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neutrophilic granulocytes</kwd><kwd>monocytes</kwd><kwd>eosinophils</kwd><kwd>phagocytosis</kwd><kwd>Staphylococcus aureus</kwd><kwd>methicillin resistance</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">Flack C.E., Zurek O.W., Meishery D.D. Diﬀerential regulation of staphylococcal virulence by the sensor kinase SaeS in response to neutrophil-derived stimuli. Proc NatlA cad Sci USA. 2014 May13; 111 (19): e2037–45. doi: 10.1073/pnas.1322125111. 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