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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-IAI-2157</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2157</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>IgM- и IgA-ответ перитонеальных B-1 клеток на Т-независимый антиген второго рода в присутствии γδT клеток in vitro</article-title><trans-title-group xml:lang="en"><trans-title>IgM- and IgA-response of peritoneal B-1 cells to the TI-2 antigen with the presence of γδT cells in vitro</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5399-3224</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Снегирева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Snegireva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>научный сотрудник лаборатории биосинтеза иммуноглобулинов,</p><p>105064, Москва, Малый Казенный пер., 5а</p></bio><bio xml:lang="en"><p>Research Associate, Immunoglobulin Biosynthesis Laboratory,</p><p>Moscow</p></bio><email xlink:type="simple">snegireva.nadezda@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>Сидорова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sidorova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.б.н., профессор, заведующая лабораторией биосинтеза иммуноглобулинов,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD, MD (Biology), Professor, Head, Immunoglobulin Biosynthesis Laboratory,</p><p>Moscow</p></bio><email xlink:type="simple">sidorova99@hotmail.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>Дьяков</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyakov</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., заведующий лабораторией биосинтеза иммуноглобулинов,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD (Biology), Head, Immunoglobulin Biosynthesis Laboratory, </p><p>Moscow</p></bio><email xlink:type="simple">dyakov.ilya@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>Гаврилова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., научный сотрудник лаборатории биосинтеза иммуноглобулинов,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD (Biology), Research Associate, Immunoglobulin Biosyntesis Laboratory,</p><p>Moscow</p></bio><email xlink:type="simple">gavrilovamv@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>Чернышова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник лаборатории биосинтеза иммуноглобулинов,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD (Medicine), Senior Research Associate, Immunoglobulin Biosyntesis Laboratory,</p><p>Moscow</p></bio><email xlink:type="simple">laboratory.lbi@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>Пашков</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkov</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор кафедры микробиологии, вирусологии и иммунологии,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Professor, Department of Microbiology, Virology and Immunology,</p><p>Moscow</p></bio><email xlink:type="simple">kaf-microb-pmgmu@yandex.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/0000-0003-1757-8389</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Свитич</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Svitich</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., член-корр. РАН, директор;</p><p>профессор кафедры микробиологии, вирусологии и иммунологии,</p><p>Москва</p></bio><bio xml:lang="en"><p>PhD, MD (Medicine), Corresponding Member, Russian Academy of Sciences, Director;</p><p>Professor, Department of Microbiology, Virology and Immunology,</p><p>Moscow</p></bio><email xlink:type="simple">svitichoa@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт вакцин и сывороток имени И.И. Мечникова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. Mechnikov Research Institute for Vaccines and Sera</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт вакцин и сывороток имени И.И. Мечникова»;&#13;
ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Министерства здравоохранения РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I. Mechnikov Research Institute for Vaccines and Sera;&#13;
I. Sechenov First Moscow State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>04</month><year>2021</year></pub-date><volume>23</volume><issue>2</issue><fpage>245</fpage><lpage>256</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Снегирева Н.А., Сидорова Е.В., Дьяков И.Н., Гаврилова М.В., Чернышова И.Н., Пашков Е.П., Свитич О.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Снегирева Н.А., Сидорова Е.В., Дьяков И.Н., Гаврилова М.В., Чернышова И.Н., Пашков Е.П., Свитич О.А.</copyright-holder><copyright-holder xml:lang="en">Snegireva N.A., Sidorova E.V., Dyakov I.N., Gavrilova M.V., Chernyshova I.N., Pashkov E.P., Svitich O.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/2157">https://www.mimmun.ru/mimmun/article/view/2157</self-uri><abstract><p>IgA является важным компонентом мукозальной системы организма, поскольку ограничивает поступление патогенов в кровоток. С нарушениями в синтезе IgA могут быть связаны такие воспалительные заболевания кишечника, как болезнь Крона и неспецифический язвенный колит. В кишечнике источником IgA являются как B1-клетки, так и В2-клетки. Особое внимание уделяется B1-клеткам, благодаря их способности отвечать преимущественно на Т-независимые антигены второго типа и вырабатывать естественные антитела. B1-клетками образуется около 50% всех IgA в кишечнике, в числе которых есть и специфические антитела к компонентам микроорганизмов, содержащихся на слизистых в желудочно-кишечном тракте. Механизм образования IgA T-независимым способом исследован не достаточно полно. Имеется предположение, что помощь в переключении на синтез IgA могут оказывать γδТ-клетки. В пользу этого предположения может свидетельствовать совместная локализация с В1-лимфоцитами в слизистой оболочке кишечника и участие наравне с В1-клетками в формировании первой линии защиты от патогенов. Кроме того, обе эти субпопуляции лимфоцитов появляются в онтогенезе первыми, раньше «классических» В2- и αβТ-клеток. Исходя из этого, было сделано предположение, что γδT-лимфоциты могут быть вовлечены в процессы индукции и/или регуляции образования IgM и IgA B1-клетками при ответе на ТН2-антигены.</p><p>В настоящей работе было проведено исследование воздействия γδТ-клеток на образование В1- лимфоцитами IgA- и IgM-продуцентов in vitro в ответ на α(1,3)-декстран. Также было проведено исследование динамики экспрессии мРНК тяжелых цепей IgM и IgA B1-клетками в культурах в разные сроки после помещения в систему in vitro.</p><p>В ходе исследования было получено, что при совместном культивировании B1-клеток с 20% γδТлимфоцитов не происходит увеличения числа специфичных к декстрану IgM-продуцентов. Экспрессия мРНК тяжелой цепи IgM в совместной культуре в ответ на декстран также была сниженной, по сравнению с ответом чистой культуры B1-клеток. Вопреки ранее сделанному предположению, присутствие γδТ-лимфоцитов в культуре не увеличивало образование IgA-продуцентов. Полученные данные свидетельствуют о проявлении регуляторных свойств γδТ-лимфоцитов при ответе B1-клеток на Т-независимые антигены. </p></abstract><trans-abstract xml:lang="en"><p>IgA is an important component of the mucosal system of the body. It limits penetration of pathogens into the bloodstream. Inflammatory diseases such as Crohn disease and colitis may be associated with disorders of IgA synthesis. Both B1 and B2 cells are a source of IgA in the intestines. Special attention is paid to B1 cells, which are able to respond to T-independent type 2 antigens and produce natural antibodies. B1 cells produce about 50% of the intestinal IgA including specific antibodies to the components of microorganisms contained in the gastrointestinal tract. The mechanism of IgA formation in the T-independent way is not investigated in details. It was suggested that the γδТ-cells promote switching to IgA synthesis by B1 cells. This assumption may be supported by their co-localization with B1 lymphocytes in the intestinal mucosa, as well as participation, along with B1 cells, in formation of the first-line defense against the pathogens. In addition, the both lymphocyte subpopulations evolve during initial ontogenesis, earlier than “classic” В2 and αβT cells. Therefore, it was suggested that γδT lymphocytes may be involved into the processes of induction and/or regulation of IgM and IgA production by B1 cells in response to TH2 antigens.</p><p>In the present study, we have shown the effect of γδT cells upon generation of IgM- and IgA-forming B1 cells in response to α-1,3-dextran in vitro. We also studied the dynamics of the mRNA expression for IgM- and IgA-heavy chains by the B1 cells at different terms of in vitro culture.</p><p>It was found that, during co-cultivation of B1 cells with 20% γδT lymphocytes, there is no increase in the number of dextran-specific IgM-producing cells. The B1 cells exhibited an increase of IgM heavy chain mRNA expression in response to dextran but not in co-cultures. Expression of mRNA for IgM heavy chains in co-cultures was decreased compared to non-treated B-cell cultures. Contrary to the earlier assumption, a presence of γδT lymphocytes in culture did not enhance the formation of IgA producents. The obtained data suggest regulatory properties of the γδТ lymphocytes during the B1 cells response to T-independent antigens. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>IgM</kwd><kwd>IgA</kwd><kwd>B-1 клетки</kwd><kwd>γδT клетки</kwd><kwd>Т-независимый антиген второго типа</kwd><kwd>кишечник</kwd><kwd>декстран</kwd></kwd-group><kwd-group xml:lang="en"><kwd>IgM</kwd><kwd>IgA</kwd><kwd>B-1 cells</kwd><kwd>γδT cells</kwd><kwd>TI-2 antigen</kwd><kwd>intestine</kwd><kwd>dextran</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">Гаврилова М.В., Снегирева Н.А., Сидорова Е.В. Влияние Breg и IL-10 на гуморальный иммунный ответ // Медицинская иммунология, 2016. Т. 18, № 4. C. 331-338. doi: 10.15789/1563-0625-2016-4-331-338.</mixed-citation><mixed-citation xml:lang="en">Gavrilova M.V., Snegireva N.A., Sidorova E.V. Influence of Breg and IL-10 upon humoral immune response. 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