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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-LCI-2377</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2377</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>Локальный клеточный иммунный ответ при хроническом пародонтите</article-title><trans-title-group xml:lang="en"><trans-title>Local cellular immune response in chronic periodontitis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1129-8335</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мудров</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mudrov</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Павлович Мудров – кандидат медицинских наук, ассистент кафедры медицинской биохимии и иммунопатологии Академического образовательного центра фундаментальной и трансляционной медицины РМАНПО; врач клинической лабораторной диагностики ДКЦ № 1.</p><p>125284, Москва, ул. Поликарпова, 10. Тел.: 8 (916) 174-44-7</p></bio><bio xml:lang="en"><p>PhD (Medicine), Assistant Professor, Department of Medical Biochemistry and Immunopathology, Academic Center of Fundamental and Translational Medicine, Russian MAPME; Doctor of Clinical Laboratory Diagnostics, Diagnostic Clinical Center No. 1, Moscow City Health Department.</p><p>Moscow</p></bio><email xlink:type="simple">vpmudrov@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>Давыдова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Davidova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Давыдова Наталья Вячеславовна – врач клинической лабораторной диагностики.</p><p>Москва</p></bio><bio xml:lang="en"><p>Doctor of Clinical Laboratory Diagnostics.</p><p>Moscow</p></bio><email xlink:type="simple">nataliya-davydov@list.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>Мишина</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Mishina</surname><given-names>T. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мишина Татьяна Евгеньевна – врач клинической лабораторной диагностики.</p><p>Москва</p></bio><bio xml:lang="en"><p>Doctor of Clinical Laboratory Diagnostics.</p><p>Moscow</p></bio><email xlink:type="simple">nataliya-davydov@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6528-1059</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казаков</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazakov</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казаков Сергей Петрович – доктор медицинских наук, доцент, заведующий кафедрой медицинской биохимии и иммунопатологии Академического образовательного центра фундаментальной и трансляционной медицины РМАНПО; начальник центра клинической лабораторной диагностики Главный ВКГ имени академика Н.Н. Бурденко.</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Associate Professor, Head, Department of of Medical Biochemistry and Immunopathology, Academic Centre for Translational and Fundamental Medicine, Russian MAPME; Head, Centre of Clinical Laboratory Diagnostics, N. Burdenko Main Military CH</p></bio><email xlink:type="simple">rmapo.kafimm@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ДПО Российская медицинская академия непрерывного профессионального образования Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy for Postgraduate Medical Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ Главный военный клинический госпиталь имени академика Н.Н. Бурденко Министерства обороны</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. Burdenko Main Military Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ Главный военный клинический госпиталь имени академика Н.Н. Бурденко Министерства обороны</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy for Postgraduate Medical Education</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБОУ ДПО Российская медицинская академия непрерывного профессионального образования Министерства здравоохранения РФ; ФГБУ Главный военный клинический госпиталь имени академика Н.Н. Бурденко Министерства обороны</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy for Postgraduate Medical Education; N. Burdenko Main Military Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>17</day><month>12</month><year>2021</year></pub-date><volume>23</volume><issue>6</issue><fpage>1389</fpage><lpage>1394</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мудров В.П., Давыдова Н.В., Мишина Т.Е., Казаков С.П., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Мудров В.П., Давыдова Н.В., Мишина Т.Е., Казаков С.П.</copyright-holder><copyright-holder xml:lang="en">Mudrov V.P., Davidova N.V., Mishina T.E., Kazakov S.P.</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/2377">https://www.mimmun.ru/mimmun/article/view/2377</self-uri><abstract><p>Микрофлора ротовой полости формирует биопленку, индуцирующую хроническое воспаление, при котором последствия инфекции играют решающую роль в патогенезе пародонтита. При заболеваниях пародонта выявляются Th1, Th2, Th17, Treg. Имеются данные о том, что Т-регуляторные клетки (Treg) являются ключевыми противовоспалительными клетками. Th17-клетки и Treg-клетки играют важную роль в дифференцировке остеокластов. Секретируемый клетками Th17 IL-17 влияет на остеокластогенез и может индуцировать макрофаги к усилению местного воспалительного ответа. В связи с этим, целью работы стало определение клеток местной иммунной системы ротовой полости, связанных со степенью тяжести хронического генерализованного пародонтита. Обследована ротовая полость 58 человек в возрасте 38-65 лет обоего пола зрелого возраста с диагнозом «хронический пародонтит» методом проточной цитофлуориметрии. Исследование уровня нейтрофилов CD64+CD16+CD14 - при различных степенях тяжести пародонтита выявило статистически значимое увеличение количества клеток при развитии заболевания. При легкой степени тяжести ХГП выявилось существенное повышение уровня CD64+CD16+CD14- Me = 36,16% (p &lt; 0,05) по сравнению с контрольной группой (Me = 7,7%; Q0,25 = 2,4%; Q0,75 = 12%). Исследование относительного количества моноцитов CD14+ при различных степенях тяжести пародонтита выявило статистически значимое снижение количества клеток тяжелой степени пародонтита. Исследование уровня регуляторных T-лимфоцитов CD4+CD25+CD127low при различных степенях тяжести пародонтита выявило статистически значимое снижение количества клеток при развитии заболевания: при легкой степени тяжести ХГП (Me = 5,6%; Q0,25 = 1,8%; Q0,75 = 8%) по сравнению с контрольной группой (Me = 22,7%; Q0,25 = 12%; Q0,75 = 32%). Полученные результаты подтверждают противовоспалительную регулирующую функцию Treg. Понимание остеоиммунных механизмов контроля ремоделирования костной ткани позволит понять патофизиологию ускоренной потери костной массы, наблюдаемой при хроническом пародонтите тяжелой степени.</p></abstract><trans-abstract xml:lang="en"><p>Microflora of the oral cavity forms a biofilm that induces response of immune system at the mucous membranes. Transition to periodontal lesion is provided by certain classes of resident mucosal immune cells and inflammatory/immune cells migrating to the periodont. In periodontal diseases, Th1, Th2, Th17, Treg are detected. T regulatory cells (Tregs) are proven to comprise the main anti-inflammatory cell population. Th17 cells and Treg cells play an important role in osteoclast differentiation. IL-17 secreted by Th17 cells affects osteoclastogenesis and may induce macrophages to enhance the local inflammatory response. In this regard, the aim of our work was to identify the local immune cells in oral cavity which are associated with severity of chronic generalized periodontitis. The oral cavity cells from 58 persons aged 38-65 years of both sexes in their mature age with a diagnosis of «chronic periodontitis» were examined by means of flow cytofluorometry. When determining levels of CD64+CD16+CD14- neutrophils in the patients with periodontitis of different severity, a statistically significant increase of this cell population was revealed upon development of this disease. In mild cases of periodontitis, a significant increase of relative CD64+CD16+CD14-  neutrophil contents was revealed (Me = 36.16%, p &lt; 0.05) compared to the control group (Me = 7.7%, Q0.25 = 2.4%, Q0.75 = 12%). When assessing relative numbers of CD14+ monocytes in periodontitis of various severity, we revealed a significant increase in the number of these cells in severe cases. When studying levels of regulatory T lymphocytes (CD4+CD25+CD127low) in periodontitis of different severity, we revealed significantly decreased amounts of this cell population during development of the disease. In mild cases of periodontitis, a decreased level of CD4+CD25+CD127low cells (p &lt; 0.05, Me = 1356 cells/ml) was revealed, as compared with control group (Me = 10666 cells/ml). Although the concentration of CD4+CD25+CD127low (Me = 4709 cells/ml) in the patients with moderate periodontitis was higher than the values in milder cases, the range of the main values was comparable and lower, than in control group. In severe periodontitis, a significantly decreased concentration of regulatory T lymphocytes was revealed (Me = 2637 cells/ml). These results confirm the anti-inflammatory regulatory function of Tregs. Understanding the osteo-immune mechanisms of bone remodeling control will help to understand the pathophysiology of accelerated bone loss observed in severe chronic periodontitis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пародонтит</kwd><kwd>Treg-клетки</kwd><kwd>нейтрофилы</kwd><kwd>моноциты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>periodontitis</kwd><kwd>Treg cells</kwd><kwd>neutrophils</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">Almubarak A., Kiran K., Tanagala K., Papapanou P.N., Lalla E., Momen-Heravi F. Disruption of monocyte and macrophage homeostasis in periodontitis. Front. Immunol., 2020, Vol. 11, 330. doi: 10.3389/fimmu.2020.00330.</mixed-citation><mixed-citation xml:lang="en">Almubarak A., Kiran K., Tanagala K., Papapanou P.N., Lalla E., Momen-Heravi F. Disruption of monocyte and macrophage homeostasis in periodontitis. 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