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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-IMO-2725</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2725</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>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group></article-categories><title-group><article-title>Иммунологические маркеры при осложнениях эндопротезирования суставов</article-title><trans-title-group xml:lang="en"><trans-title>Immunological markers of arthroplasty failure</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>Mocкалец</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Moskalets</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Mocкалец Оксана Владимировна – к.м.н., ведущий научный сотрудник лаборатории биомедицинских методов исследования </p><p>129110, Москва, ул. Щепкина, 61/2.</p></bio><bio xml:lang="en"><p>Oksana V. Moskalets, PhD (Medicine), Leading Research Associate, Laboratory of Biomedical Research Methods </p><p>61/2 Stchepkin St., Moscow, 129110</p></bio><email xlink:type="simple">6816000@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ МО «Московский областной научно-исследовательский клинический институт имени М.Ф. Владимирского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M. Vladimirsky Moscow Regional Research Clinical Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>06</month><year>2023</year></pub-date><volume>25</volume><issue>4</issue><fpage>871</fpage><lpage>874</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Mocкалец О.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Mocкалец О.В.</copyright-holder><copyright-holder xml:lang="en">Moskalets O.V.</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/2725">https://www.mimmun.ru/mimmun/article/view/2725</self-uri><abstract><p>Перипротезная инфекция суставов до сих пор остается сложной клинической проблемой, поскольку точное определение этого состояния и надежные лабораторные маркеры пока отсутствуют. Данное исследование было направлено на оценку информативности определения некоторых субпопуляций лимфоцитов и моноцитов у пациентов с перипротезной инфекцией суставов и неинфекционными осложнениями эндопротезирования. В данное исследование было включено 34 пациента с хронической перипротезной инфекцией, 12 – с неинфекционными осложнениями и 30 практически здоровых лиц. Количество CD3+, CD3+CD4+, CD3+CD8+, CD19+, CD3-CD16+CD56+, CD3+HLA-DR+, CD4+CD45RACD45RO+, CD4+CD45RA+CD45RO- и CD14+HLA-DR+ субпопуляций лимфоцитов и моноцитов в периферической крови определяли методом проточной цитометрии. Оценку экспрессии мембранных антигенов проводили по средней интенсивности флуоресценции. У пациентов с перипротезной инфекцией суставов было выявлено достоверное увеличение субпопуляций CD3+CD4+ (p &lt; 0,01) и достоверное снижение субпопуляций CD3-CD16+CD56+ (p &lt; 0,005) при сравнению с контрольной группой. Содержание CD19+ лимфоцитов у этих больных было достоверно выше, чем у лиц с неинфекционными осложнениями (p &lt; 0,005), последняя группа также характеризовалась более высоким содержанием активированных Т-лимфоцитов (CD3+HLA-DR+) по сравнению с контрольной (р &lt; 0,001). Количество «наивных» Т-лимфоцитов (CD4+CD45RA+CD45RO-) было ниже у больных с перипротезной инфекцией суставов, чем у больных с неинфекционными осложнениями (p &lt; 0,05), и в обеих группах этот показатель был достоверно ниже, чем в контрольной (p &lt; 0,001). Содержание Т-клеток памяти (CD4+CD45RACD45RO+), напротив, было достоверно повышено в обеих сравниваемых группах (p &lt; 0,05). В группе больных с перипротезной инфекцией суставов количество активированных моноцитов (CD14+HLA-DR+), а также показатель экспрессии данного активационного маркера были существенно ниже, чем в двух остальных группах (p &lt; 0,05 и р &lt; 0,001 соответственно). Таким образом, оценку субпопуляций лимфоцитов и моноцитов периферической крови, в том числе изучение интенсивности экспрессии активационных маркеров, можно, вместе с другими общепринятыми клинико-лабораторными показателями, дополнительно использовать для проведения дифференциального диагноза между перипротезной инфекцией суставов и неинфекционными осложнениями эндопротезирования.</p></abstract><trans-abstract xml:lang="en"><p>Periprosthetic joint infection still remains a clinical challenge since accurate definition of this condition and reliable laboratory markers have not been established yet. This study aimed to evaluate the benefit of some lymphocyte and monocyte subset determination in patients with periprosthetic joint infection and non-infectious arthroplasty failure. Thirty-four patients with chronic periprosthetic joint infection, 12 patients with non-infectious arthroplasty and 30 healthy persons were included in the study. The counts of CD3+, CD3+CD4+, CD3+CD8+, CD19+, CD3-CD16+CD56+, CD3+HLA-DR+, CD4+CD45RACD45RО+, CD4+CD45RA+ CD45RО- and CD14+ HLA-DR+ subsets in peripheral blood were assessed by flow cytometry. The assessment of the intensity of antigen expression was carried out according to mean fluorescence intensity. A significant increase in CD3+CD4+ subsets (p &lt; 0,01) and a significant decrease in CD3-CD16+CD56+ subsets (p &lt; 0,005) were revealed in patients with periprosthetic joint infection compared to the healthy controls. The content of CD19+ lymphocytes in these patients was significantly higher than in aseptic ones (p &lt; 0,005); the latter group was also characterized by more pronounced increase in the number of activated T lymphocytes (CD3+HLA-DR+) compared to controls (p &lt; 0,001). Patients with periprosthetic joint infection showed decreased “naïve” T lymphocytes (CD4+CD45RA+CD45RO-) count compared to aseptic ones (p &lt; 0,05), and both groups showed a decrease counts compared to controls (p &lt; 0,001). On the contrary, memory T lymphocyte (CD4+CD45RACD45RO+) count was significantly increased in both compared groups (p &lt; 0,05). Patients with periprosthetic joint infection compared with other two groups demonstrated a significant decrease in the number of activated monocytes (CD14+HLA-DR+) and pronounced decrease in the expression intensity of this marker on cell membrane (p &lt; 0,05 and p &lt; 0,001, respectively). Thus, evaluation of lymphocyte and monocyte subsets, including expression of cell activation antigens could be useful as additional laboratory test in combination with other conventional methods for differentiation between periprosthetic joint infection and aseptic arthroplasty failure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эндопротезирование суставов</kwd><kwd>осложнения</kwd><kwd>перипротезная инфекция</kwd><kwd>проточная цитометрия</kwd><kwd>лимфоциты</kwd><kwd>моноцит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>joint arthroplasty</kwd><kwd>complications</kwd><kwd>periprosthetic joint infection</kwd><kwd>flow cytometry</kwd><kwd>lymphocytes</kwd><kwd>monocytes</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">Abdelbary H., Cheng W., Ahmadzai N., Carli A.V., Shea B.J., Hutton, B., Fergusson D.A., Beaule P.E. 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