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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">10.15789/10.15789/1563-0625-EOT-2616</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2616</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>Оценка функциональной активности эктонуклеотидазы CD39 в регуляторных Т-клетках у детей с воспалительными заболеваниями кишечника</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of the functional activity of CD39 ectonucleotidase in regulatory T cells in children with inflammatory bowel diseases</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4704-6885</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Радыгина</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Radygina</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Радыгина Т.В. – к.м.н., старший научный сотрудниклаборатории экспериментальной иммунологии и вирусологии</p><p>119991, Москва, Ломоносовский пр., 2, стр. 1Тел: 8 (499) 134-13-98Факс: 8 (499) 134-70-01</p></bio><bio xml:lang="en"><p>Radygina T.V., PhD (Medicine), Senior Research Associate,Laboratory of Experimental Immunology and Virology</p><p>2 bldg 1 Lomonosovsky Ave Moscow 119991 Phone: +7 (499) 134-13-98Fax: +7 (499) 134-70-01.</p><p> </p></bio><email xlink:type="simple">tvradigina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5046-0377</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сорокина</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokina</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сорокина Е.Г. – к.б.н., ведущий научный сотрудниклаборатории нейробиологии и основ развития мозга</p><p>Москва</p></bio><bio xml:lang="en"><p>Sorokina E.G., PhD (Biology), Leading Research Associate,Laboratory of Neurobiology and States of Brain Development</p><p> Moscow</p></bio><email xlink:type="simple">sorokelena@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0896-6996</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петричук</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrichuk</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петричук С.В. – д.б.н., профессор, главный научныйсотрудник лаборатории экспериментальной иммунологии и вирусологии лабораторного отдела</p><p>Москва</p></bio><bio xml:lang="en"><p>Petrichuk S.V., PhD, MD (Biology), Professor, Chief ResearchAssociate, Laboratory of Experimental Immunology andVirology</p><p> Moscow</p></bio><email xlink:type="simple">cito@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7771-3314</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Купцова</surname><given-names>Д. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuptsova</surname><given-names>D. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Купцова Д.Г. – младший научный сотрудник лаборатории экспериментальной иммунологии и вирусологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Kuptsova D.G., Junior Research Associate, Laboratory ofExperimental Immunology and Virology</p><p> Moscow</p></bio><email xlink:type="simple">dg.kuptsova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9213-5281</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Курбатова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurbatova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курбатова О.В. – к.м.н., старший научный сотрудниклаборатории экспериментальной иммунологиии вирусологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Kurbatova O.V., PhD (Medicine), Senior Research Associate,Laboratory of Experimental Immunology and Virology</p><p> Moscow</p></bio><email xlink:type="simple">putintseva@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4905-2373</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Потапов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Potapov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Потапов А.С. – д.м.н., профессор, главный научный сотрудник лаборатории научных основ детской гастроэнтерологии и гепатологии, заведующий гастроэнтерологическим отделением с гепатологической группой ; профессор кафедры педиатрии и детской ревматологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Potapov A.S., PhD, MD (Medicine), Professor, Chief ResearchAssociate, Laboratory of Scientific Foundations of PediatricGastroenterology and Hepatology, Head of GastroenterologyDepartment with Hepatology Group ; Professor, Departmentof Pediatrics and Pediatric Rheumatology</p><p> Moscow</p></bio><email xlink:type="simple">potapov@nczd.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/0000-0002-4935-987X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Афанасьева</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Afanasyeva</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Афанасьева С.А. – лаборант-исследователь лаборатории нейробиологии и основ развития мозга</p><p>Москва</p></bio><bio xml:lang="en"><p>Afanasyeva S.A., Laboratory Assistant, Laboratory ofNeurobiology and States of Brain Development</p><p> Moscow</p></bio><email xlink:type="simple">afsonia11@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр здоровья детей» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Children’s Health</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр здоровья детей» Министерства  здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Children’s Health</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр здоровья детей» Министерства здравоохранения РФ; ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова»&#13;
Министерства здравоохранения РФ (Сеченовский университет)</institution><country>Russian Federation</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Children’s Health;  I. Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>05</day><month>04</month><year>2023</year></pub-date><volume>25</volume><issue>2</issue><fpage>415</fpage><lpage>422</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Радыгина Т.В., Сорокина Е.Г., Петричук С.В., Купцова Д.Г., Курбатова О.В., Потапов А.С., Афанасьева С.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Радыгина Т.В., Сорокина Е.Г., Петричук С.В., Купцова Д.Г., Курбатова О.В., Потапов А.С., Афанасьева С.А.</copyright-holder><copyright-holder xml:lang="en">Radygina T.V., Sorokina E.G., Petrichuk S.V., Kuptsova D.G., Kurbatova O.V., Potapov A.S., Afanasyeva S.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/2616">https://www.mimmun.ru/mimmun/article/view/2616</self-uri><abstract><p>В связи с ростом заболеваемости и распространенности воспалительных заболеваний кишечника (ВЗК) поиск прогностических маркеров эффективности проводимой терапии является актуальной проблемой. Дисбаланс между Th17-лимфоцитами и регуляторными Т-клетками (Treg) является ключевым дефектом иммунной системы, приводящим к ВЗК. Внеклеточный АТФ, образующийся при повреждении тканей, обладает провоспалительным эффектом и способствует дифференцировке Th17-клеток. Эктонуклеотидаза CD39 катализирует дефосфорилирование АТФ до АМФ с последующим превращением в аденозин под действием CD73. CD39 экспрессируется в разных типах клеток, в том числе в Treg. Цель – оценить функциональную активность CD39+ в Treg у детей с ВЗК с помощью люциферин-люциферазного метода.</p><p>Обследовано 68 детей с ВЗК. Из них 28 детей были в состоянии ремиссии, 40 – в обострении. Оценку количества Treg (CD4+CD25highCD127low), экспрессирующих СD39, проводили методом проточной цитометрии. Концентрацию АТФ в супернатантах и клетках определяли с помощью люциферин-люциферазного теста. Результаты представлены в виде медианы (Me) и квартилей (Q0,25-Q0,75). Достоверность различий между группами оценивали с использованием непараметрического U-критерия Манна–Уитни.</p><p>Относительное количество CD39+Treg у пациентов в ремиссии ВЗК было достоверно выше, чем у пациентов в состоянии обострения. Снижение концентрации АТФ под действием CD39+Treg у пациентов с ВЗК происходило сразу при добавлении экзогенного АТФ. АТФ у пациентов в ремиссии снижалось на 44,5% (Me 54,5 (41,5-65,9)), у пациентов в обострении – на 32,5% (Me 67,5 (59,7-71,3)).</p><p>При этом у пациентов в состоянии ремиссии снижение содержания АТФ через 5 минут реакции было достоверно выше, чем у пациентов в состоянии обострения (p = 0,01), через 35 минут реакции достоверной разницы не выявлено. Показано, что образцы с меньшим количеством клеток и меньшей интенсивностью экспрессии CD39 в Treg имели большую активность эктонуклеотидазы CD39.</p><p>Для эффективного гидролиза АТФ, помимо количества CD39 в Treg, важна их функциональная активность. Оценка каталитической активности CD39 в Treg у пациентов с ВЗК наиболее информативна в первые минуты после добавления экзогенной АТФ. У пациентов в состоянии ремиссии каталитическая активность CD39 в Treg была выше, чем у пациентов в состоянии обострения.</p></abstract><trans-abstract xml:lang="en"><p>In connection with the increasing incidence and prevalence of inflammatory bowel disease (IBD), the search for prognostic markers of the effectiveness of therapy is an urgent problem. An imbalance between Th17 lymphocytes and regulatory T cells (Treg) is a major defect in the immune system leading to IBD. Extracellular ATP produced during tissue damage, rebound pro-inflammatory effects, and activates Th17 cell differentiation. Ectonucleotidase CD39 catalyzes the dephosphorylation of ATP to AMP, followed by conversion to adenosine by CD73. CD39 is expressed in various cell types, including Treg. Aim – evaluate the functional activity of CD39+ in Treg in children with IBD using the luciferin-luciferase method.</p><p>68 children with IBD were examined. Of these, 28 children were in remission, 40 were in exacerbation. The number of Tregs (CD4+CD25highCD127low) expressing CD39 was estimated by flow cytometry. The ATP concentration in supernatants and cells was determined using the luciferin-luciferase test. Results are presented as median (Me) and quartiles (Q0.25-Q0.75). The significance of differences between groups was assessed using the nonparametric Mann–Whitney U test.</p><p>The relative number of CD39+Treg in patients in remission of IBD was significantly higher than in patients in a state of exacerbation. A decrease in ATP concentration under the influence of CD39+Treg in patients with IBD occurred immediately upon the addition of exogenous ATP. ATP in patients in remission decreased by 44.5% (Me 54.5 (41.5-65.9)), in patients in exacerbation – by 32.5% (Me 67.5 (59.7-71.3)). At the same time, in patients in remission, the decrease in the ATP content after 5 minutes of the reaction was significantly higher than in patients in the state of exacerbation (p = 0.01), after 30 minutes of the reaction, no significant difference was found. It was shown that samples with a smaller number of cells and a lower intensity of CD39 expression in Treg had a higher activity of CD39 ectonucleotidase.</p><p>For efficient ATP hydrolysis, in addition to the amount of CD39 in Treg, their functional activity is important. The assessment of the catalytic activity of CD39 in Treg in patients with IBD is most informative in the first minutes after the addition of exogenous ATP. In patients in remission, the catalytic activity of CD39 in Treg was higher than in patients in a state of exacerbation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Treg</kwd><kwd>CD39</kwd><kwd>гидролиз</kwd><kwd>АТФ</kwd><kwd>ВЗК</kwd><kwd>дети</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Treg</kwd><kwd>CD39</kwd><kwd>ATP</kwd><kwd>hydrolysis</kwd><kwd>IBD</kwd><kwd>children</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">Горелов А.В., Каннер Е.В. Воспалительные заболевания кишечника у детей: особенности течения и терапии // Медицинский совет, 2018. № 2. C. 140-145.</mixed-citation><mixed-citation xml:lang="en">Gorelov A.V., Kanner E.V. Inflammatory bowel diseases in children: peculiarities of the disease Course and therapy. Meditsinskiy sovet = Medical Council, 2018, no. 2, pp. 140-145. 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