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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-PCO-2839</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2839</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>Фенотипическая характеристика интраэпителиальных лимфоцитов толстой кишки у пациентов с болезнью Крона</article-title><trans-title-group xml:lang="en"><trans-title>Phenotype characteristic of colonic intraepithelial lymphocytes in patients with Crohn's disease</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1633-7487</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нижегородова</surname><given-names>Д. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Nizheharodava</surname><given-names>D. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нижегородова Дарья Борисовна — кандидат биологических наук, доцент, ведущий научный сотрудник отдела иммунологии и биомедицинских технологий научно-исследовательской лаборатории, БМАПО; доцент кафедры иммунологии, МГЭИ имени. А.Д. Сахарова БГУ.</p><p>220013, Минск, ул. П. Бровки, 3, корп. 3</p><p>Тел.: +375 (29) 608-99-94</p></bio><bio xml:lang="en"><p>Darya B. Nizheharodava - PhD (Biology), Associate Professor, Leading Research Associate, Immunology and Biomedical Technologies Department of Central Research Laboratory, Belarusian Medical Academy of Postgraduate Education; Associate Professor, Immunology Department, International Sakharov Environmental Institute of Belarusian State University.</p><p>3 P. Brovki St, Bldg 3 Minsk 220013</p><p>Phone: +375 (29) 608-99-94</p></bio><email xlink:type="simple">nzh@tut.by</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>Шулейко</surname><given-names>А. Ч.</given-names></name><name name-style="western" xml:lang="en"><surname>Shuleika</surname><given-names>A. Ch.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шулейко Анатолий Ч. — доктор медицинских наук, доцент, заведующий кафедрой хирургии.</p><p>Минск</p></bio><bio xml:lang="en"><p>Anatoly Ch. Shuleika - PhD, MD (Medicine), Associate Professor, Head, Surgery Department, Belarusian Medical Academy of Postgraduate Education.</p><p>Minsk</p></bio><email xlink:type="simple">shuleika1961@gmail.com</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>Старостин</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Starastsin</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старостин Андрей М. — старший преподаватель кафедры хирургии.</p><p>Минск</p></bio><bio xml:lang="en"><p>Andrey M. Starastsin - Senior Lecturer, Surgery Department Belarusian Medical Academy of Postgraduate Education.</p><p>Minsk</p></bio><email xlink:type="simple">andreistarastsin@gmail.com</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>Ванслав</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vanslau</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ванслав Маргарита И. — младший научный сотрудник отдела иммунологии и биомедицинских технологий научно-исследовательской лаборатории.</p><p>Минск</p></bio><bio xml:lang="en"><p>Marharyta I. Vanslau - Junior Research Associate, Immunology and Biomedical Technologies Department of Central Research Laboratory Belarusian Medical Academy of Postgraduate Education.</p><p>Minsk</p></bio><email xlink:type="simple">mtalkovskaya@mail.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>Иванчик</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanchyk</surname><given-names>G. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванчик Галина И. — старший научный сотрудник отдела иммунологии и биомедицинских технологий научно-исследовательской лаборатории.</p><p>Минск</p></bio><bio xml:lang="en"><p>Galina I. Ivanchyk - Senior Research Associate, Immunology and Biomedical Technologies Department of Central Research Laboratory Belarusian Medical Academy of Postgraduate Education.</p><p>Minsk</p></bio><email xlink:type="simple">immunology.by@gmail.com</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>Величко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vialichka</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Величко Алеся В. — младший научный сотрудник отдела иммунологии и биомедицинских технологий научно-исследовательской лаборатории, БМАПО; преподаватель кафедры иммунологии, МГЭИ им. А.Д. Сахарова БГУ.</p><p>Минск</p></bio><bio xml:lang="en"><p>Alesya V. Vialichka - Junior Research Associate, Immunology and Biomedical Technologies Department of Central Research Laboratory Belarusian Medical Academy of Postgraduate Education; Lecturer, Immunology Department, International Sakharov Environmental Institute of Belarusian State University.</p><p>Minsk</p></bio><email xlink:type="simple">alesjswirskay@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/0000-0002-8739-8300</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зафранская</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zafranskaya</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зафранская Марина М. — доктор медицинских наук, профессор, главный научный сотрудник отдела иммунологии и биомедицинских технологий научно-исследовательской лаборатории, БМАПО; заведующая кафедрой иммунологии, МГЭИ им. А.Д. Сахарова БГУ.</p><p>Минск</p></bio><bio xml:lang="en"><p>Marina M. Zafranskaya - PhD, MD (Medicine), Professor, Chief Research Associate, Immunology and Biomedical Technologies Department of Central Research Laboratory, Belarusian Medical Academy of Postgraduate Education; Head, Immunology Department International Sakharov Environmental Institute of Belarusian State University.</p><p>Minsk</p></bio><email xlink:type="simple">zafranskaya@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусская медицинская академия последипломного образования; Международный государственный экологический институт имени А.Д. Сахарова Белорусского государственного университета</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian Medical Academy of Postgraduate Education; International Sakharov Environmental Institute of Belarusian State University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусская медицинская академия последипломного образования</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian Medical Academy of Postgraduate Education</institution><country>Belarus</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>5</issue><fpage>1103</fpage><lpage>1110</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нижегородова Д.Б., Шулейко А.Ч., Старостин А.М., Ванслав М.И., Иванчик Г.И., Величко А.В., Зафранская М.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Нижегородова Д.Б., Шулейко А.Ч., Старостин А.М., Ванслав М.И., Иванчик Г.И., Величко А.В., Зафранская М.М.</copyright-holder><copyright-holder xml:lang="en">Nizheharodava D.B., Shuleika A.C., Starastsin A.M., Vanslau M.I., Ivanchyk G.I., Vialichka A.V., Zafranskaya M.M.</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/2839">https://www.mimmun.ru/mimmun/article/view/2839</self-uri><abstract><p>Интраэпителиальные лимфоциты (IEL) играют важную роль в поддержании иммунного гомеостаза и обеспечивают первую линию защиты слизистых оболочек желудочно-кишечного тракта от антигенов, а также быстро реагируют на повреждение эпителия. В последнее время IEL рассматриваются в качестве ключевых медиаторов аберрантного иммунного ответа, характеризующегося стойкой иммунной активацией, воспалением и нарушением барьерной функции слизистых оболочек, что наблюдается при болезни Крона. В данном исследовании впервые приводится сравнительная характеристика субпопуляционного состава IEL толстой кишки у пациентов с болезнью Крона и здоровых доноров для последующего определения их потенциальной роли в патогенезе заболевания.</p><p>Материалом исследования явилась ткань толстой кишки и периферическая кровь 10 пациентов с болезнью Крона и 6 здоровых доноров. IEL выделяли из ткани методом клеточной диссоциации; циркулирующие лимфоциты получали из периферической венозной крови путем центрифугирования на градиенте плотности. Фенотип лимфоидных клеток оценивали с использованием моноклональных антител и метода проточной цитометрии.</p><p>Большинство IEL толстой кишки идентифицировалось как СD3+Т-лимфоциты, однако статистически значимые различия в их количестве отсутствовали в исследуемых группах. При этом установлены изменения субпопуляционного состава Т-клеток: у пациентов с болезнью Крона соотношение CD3+CD4+IEL и CD3+CD8+IEL составило 1:1 и коррелировало с процентом Т-лимфоцитов в периферической крови (R = 0,7; p &lt; 0,05), в то время как в донорской ткани выявлялось ожидаемое преобладание СD3+СD8+Т-киллеров (соотношение достигало 1:2, p &lt; 0,05). Наряду с этим повышение неклассических γδIEL (преимущественно за счет Vδ1+T-клеток) и СD161+T-клеток в сочетании со снижением TNK-клеток наблюдалось как в толстой кишке (p &lt; 0,01), так и в периферической крови (p &lt; 0,05) пациентов с болезнью Крона относительно контрольной группы. При этом количество γδIEL коррелировало с локализацией (R = -0,6; p &lt; 0,05) и течением заболевания (R = 0,7; p &lt; 0,01) согласно Монреальской классификации.</p><p>У пациентов с болезнью Крона выявлены изменения состава IEL толстой кишки, которые характеризуют вовлечение субпопуляций Т-хелперов, γδТ-лимфоцитов и мукозально-ассоциированных СD161+Т-клеток в патогенез аутоиммунного воспаления, что требует дальнейшего исследования для установления их патогенетической роли.</p></abstract><trans-abstract xml:lang="en"><p>Intraepithelial lymphocytes (IEL) play a critical role in maintaining the immune balance of the gut and provide the first line of mucosal defense against luminal antigens as well as rapidly respond to epithelial injury. Recently, IEL have received a lot of attention as key mediators of aberrant immune response resulted in persistent immune activation, inflammation and altered intestinal barrier function, seen in Crohn's disease (CD). This study describes for the first time subsets of colonic IEL in CD patients as compared to healthy controls aimed at characterization of altered IEL contribution to the pathogenesis of Crohn's disease.</p><p>The peripheral venous blood and colon tissues were obtained from 10 CD patients and 6 donors. IEL were isolated from the mucosa by incubation the tissue in a predigesting solution. Lymphoid cells phenotype was investigated using monoclonal antibodies and flow cytometry.</p><p>The majority of colonic IEL was identified as СD3+T lymphocytes and no significant differences were found in their numbers in investigated groups. However, changes in T cell subsets composition have been shown: the ratio of СD3+СD4+IEL and СD3+СD8+IEL was 1:1 in colon of CD patients and correlated with T cells in peripheral blood (R = 0.7; p &lt; 0.05) while donor tissues were characterized by expected СD3+СD8+T killers prevalence and the ratio reached 1:2 (p &lt; 0.05). The increase of unconventional γδIEL (mainly due to V81+T cells) and СD161+T cells in association with TNK cells decrease were revealed in colon (p &lt; 0.01) as well as in peripheral blood (p &lt; 0.05) of CD patients as compared to donors. Moreover, the number of colonic γδIEL was correlated with disease location (R = -0.6; p &lt; 0.05), and disease behavior (R = 0.7; p &lt; 0.01) according to Montreal classification.</p><p>The observed data indicates changes in colonic IEL composition in CD patients that may provide valuable insight into the contribution of T helpers, γδT cells and mucosa-associated СD161+T cells in autoimmune intestinal inflammation but need further possible mechanisms discussion.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>интраэпителиальные лимфоциты</kwd><kwd>проточная цитометрия</kwd><kwd>болезнь Крона</kwd><kwd>толстая кишка</kwd><kwd>аутоиммунное воспаление</kwd><kwd>мукозальный иммунитет</kwd></kwd-group><kwd-group xml:lang="en"><kwd>intraepithelial lymphocytes</kwd><kwd>flow cytometry</kwd><kwd>Crohn's disease</kwd><kwd>colon</kwd><kwd>autoimmune inflammation</kwd><kwd>mucosal immunity</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">Casalegno G.R., Dabritz J. 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