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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-DOT-16797</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-3046</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>Дисбаланс между T-хелперами 17-го типа и T-регуляторными клетками при хроническом течении саркоидоза</article-title><trans-title-group xml:lang="en"><trans-title>Dysregulation of Th17 and regulatory T Cells in chronic pulmonary sarcoidosis: a potential biomarker for disease management</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>Эльгухари</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Elgouhari</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эльгухари Амро Самир Фавзи Омар - студент факультета биотехнологий,</p><p>191002, Санкт-Петербург, ул. Ломоносова, 9</p></bio><bio xml:lang="en"><p>Amro Samir Fawzi Omar Elgouhari - Student, Faculty of Biotechnologies,9 Lomonosov St, St. Petersburg 191002</p></bio><email xlink:type="simple">amr.s.f.o@gmail.com</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>Лазарева</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lazareva</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., заведующая лабораторией молекулярно-генетических исследований клиники,врач клинической лабораторной диагностики,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>PhD (Medicine), Head of the Clinical Diagnostic Laboratory of Molecular Genetic Research at the Clinic of the Research Center of Cellular and Molecular Pathology, </p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Баранова</surname><given-names>О. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranova</surname><given-names>O. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник Научно-исследовательского института интерстициальных и орфанных заболеваний легких, доцент кафедры пульмонологии,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>PhD (Medicine), Senior Research Associate, Research Institute of Interstitial and Orphan Lung Diseases, Associate Professor, Department of Pulmonology, </p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудрявцев</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryavtsev</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент кафедры иммунологии; </p><p>к.б.н., заведующий лабораторией иммунорегуляции, отдел иммунологии,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Associate Professor, Department of Immunology;</p><p>PhD (Biology), Head, Laboratory of Immunoregulation, Department of Immunology,</p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сесь</surname><given-names>Т. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Ses</surname><given-names>T. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.б.н., профессор кафедры иммунологии,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>PhD, MD (Biology), Professor, Department of Immunology, </p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Илькович</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilkovich</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, директор Научно-исследовательского института интерстициальныхи орфанных заболеваний легких, заведующий кафедрой пульмонологии,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Professor, Director, Research Institute of Interstitial and Orphan Diseases, Head of the Department of Pulmonology,</p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тотолян</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Totolian</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>заведующий кафедрой иммунологии;</p><p>д.м.н., профессор, академик РАН, директор,</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Head, Department of Immunology;</p><p>PhD, MD (Medicine), Professor, Full Member, Russian Academy of Sciences, Director,</p><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Российский научно-исследовательский институт гематологии и трансфузиологии Федерального медико-биологического агентства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Research Institute of Hematology and Transfusiology of the Federal Medical and Biological Agency</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>First St. Petersburg State I. Pavlov Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ;&#13;
ФГБНУ «Институт экспериментальной медицины»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>First St. Petersburg State I. Pavlov Medical University;&#13;
Institute of Experimental Medicine</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова» Министерства здравоохранения РФ;&#13;
ФБУН «Научно-исследовательский институт эпидемиологии и микробиологии имени Пастера»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>First St. Petersburg State I. Pavlov Medical University;&#13;
Saint Petersburg Pasteur Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>07</month><year>2024</year></pub-date><volume>26</volume><issue>4</issue><fpage>755</fpage><lpage>764</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Эльгухари А.С., Лазарева Н.М., Баранова О.П., Кудрявцев И.В., Сесь Т.П., Илькович М.М., Тотолян А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Эльгухари А.С., Лазарева Н.М., Баранова О.П., Кудрявцев И.В., Сесь Т.П., Илькович М.М., Тотолян А.А.</copyright-holder><copyright-holder xml:lang="en">Elgouhari A.S., Lazareva N.M., Baranova O.P., Kudryavtsev I.V., Ses T.P., Ilkovich M.M., Totolian A.A.</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/3046">https://www.mimmun.ru/mimmun/article/view/3046</self-uri><abstract><p>Саркоидоз – это полисистемное воспалительное заболевание неизвестной этиологии, при котором формируются неказеозные гранулемы. Они чаще всего обнаруживаются в легочной ткани. Фенотипы саркоидоза разделяются по особенностям течения на острую и хроническую формы. У пациентов с хроническим саркоидозом прогноз обычно менее благоприятный с риском развития фиброза легких. Известно, что при саркоидозе происходит активация Т-клеток, которые высвобождают различные хемокины и цитокины, стимулирующие воспалительный процесс. В настоящее время особое внимание уделяется роли Th17 и Treg в патогенезе саркоидоза. Цель нашего исследования заключалась в изучении роли соотношения между Th17 и Treg при хроническом течении саркоидоза. Были исследованы образцы плазмы периферической крови больных хроническим саркоидозом (ХС) (n = 101) и условно здоровых лиц (УЗ) (n = 40). Мы определили уровни Th17 и Treg (% от общего числа лимфоцитов) методом проточной цитофлуориметрии. Измеряли содержание цитокинов (пг/мл) IL-17A и IL-10 методом мультиплексного анализа по технологии Luminex xMap. Следующим этапом проведенного нами исследования было изучение взаимосвязи между соотношением Th17/Treg и клиническими показателями тяжести заболевания. Мы проанализировали корреляции между соотношением Th17/Treg и уровнями активности АПФ в периферической крови, значениями ОФВ1 (%), проявлением фиброза, а также наличием системных поражений саркоидоза у больных ХС. Мы обнаружили повышение уровня Th17 (p = 0,028) и снижение уровня Treg (p = 0,026) у больных ХС по сравнению с группой УЗ. Кроме того, отмечено повышение соотношения Th17/Treg (p = 0,003) и со отношения IL-17А/IL-10 (p &lt; 0,001) у больных ХС по сравнению с группой УЗ. Также, наблюдалась положительная корреляция между соотношением Th17/Treg и уровнями активности АПФ (p = 0,018), проявлением фиброза (p = 0,019), а также с наличием системных поражений у больных ХС (p = 0,016). С другой стороны, отмечалась отрицательная корреляция (p = 0,021) между значениями ОФВ1 (%) и соотношением Th17/Treg. Наши результаты свидетельствуют об увеличении соотношения Th17/Treg, а также соотношения их основных цитокинов у больных с хроническим течением саркоидоза, что может подчеркнуть их роль в качестве биомаркера тяжести течения и прогноза хронического саркоидоза. На молекулярном уровне баланс между Treg и Th17 поддерживается транскрипционными факторами Foxp3 и RORγt, которые регулируют дифференцировку и функцию этих клеток. Нарушение этого баланса при хроническом течении саркоидоза может указывать на возможный механизм прогрессирования заболевания.</p></abstract><trans-abstract xml:lang="en"><p>Sarcoidosis is a multisystem inflammatory disease of unknown etiology characterized by the formation of non-caseating granulomas, most commonly in the lung tissue. It presents with two main forms: acute and chronic. Patients with chronic sarcoidosis tend to have a less favorable prognosis with a risk of developing lung fibrosis. Sarcoidosis development involves the activation of T cells, which release various chemokines and cytokines that stimulate the inflammatory process. The aim of our study was to investigate the role of the ratio between Th17 and Treg cells in the chronic course of sarcoidosis. We studied peripheral blood plasma samples from patients with chronic sarcoidosis (CS) (n = 101) and healthy individuals (HC) (n = 40). The diagnosis in CS patients was confirmed by histological methods. We determined the levels of Th17 and Treg (% of total lymphocytes) by flow cytometry. The concentration of cytokines (pg/ml) IL-17A and IL-10 was measured by multiplex analysis using Luminex xMap. Correlations between the Th17/Treg ratio and clinical parameters, including serum angiotensin-converting enzyme (sACE) activity level in the peripheral blood, forced expiratory volume in the first second (FEV1, %), fibrosis manifestations, and extrapulmonary manifestations were analyzed in CS patients. Our analysis revealed elevated levels of Th17 cells (p = 0.028) and decreased Treg levels (p = 0.026) in CS patients compared to healthy controls. This resulted in a significantly increased Th17/Treg ratio (p = 0.003) and IL-17A/IL-10 ratio (p &lt; 0.001) in sarcoidosis patients. Furthermore, the Th17/Treg ratio positively correlated with sACE levels (p = 0.018), fibrosis manifestations (p = 0.019), and extrapulmonary manifestations (p = 0.016), and negatively correlated with FEV1% (p = 0.021). Our results indicate an increase in the Th17/Treg ratio, as well as the ratio of their main cytokines in patients with chronic sarcoidosis, which may emphasize their potential role as a diagnostic and prognostic biomarker of disease severity. At the molecular level, the balance between Treg and Th17 cells is maintained by the transcription factors Foxp3 and RORγt, which regulate the differentiation and function of these cells. Disruption of this balance in patients with chronic sarcoidosis may indicate a possible mechanism for disease progression.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>саркоидоз</kwd><kwd>синдром Лефгрена</kwd><kwd>Т-хелперы 17-го типа</kwd><kwd>Т-регуляторные клетки</kwd><kwd>биомаркер</kwd><kwd>IL-17A</kwd><kwd>гранулема</kwd><kwd>фиброз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sarcoidosis</kwd><kwd>Löfgren’s syndrome</kwd><kwd>Th17 cell</kwd><kwd>Treg</kwd><kwd>biomarker</kwd><kwd>IL-17A</kwd><kwd>granuloma</kwd><kwd>fibrosis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РНФ № 22-24-20013.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Зурочка А.В., Хайдуков С.В., Кудрявцев И.В., Черешнев В.А. Проточная цитометрия в биомедицинских исследованиях. 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