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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-MDS-2696</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2696</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>Миелоидные супрессорные клетки в качестве биомаркеров эффективности терапии новыми биологическими препаратами у больных аксиальным спондилоартритом</article-title><trans-title-group xml:lang="en"><trans-title>Myeloid-derived suppressor cells as biomarkers of the effectiveness of therapy with new biological agents in axial spondyloarthritis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7987-2017</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тыринова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyrinova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тыринова Тамара Викторовна — доктор биологических наук, ведущий научный сотрудник.</p><p>630099, Новосибирск, ул. Ядринцевская, 14</p><p>Тел.: 8 (383) 228-21-01</p></bio><bio xml:lang="en"><p>Tamara V. Tyrinova - PhD, MD (Biology), Leading Research Associate , Research Institute of Fundamental and Clinical Immunology.</p><p>14 Yadrintsevskaya St Novosibirsk 630099</p><p>Phone: +7 (383) 228-21-01</p></bio><email xlink:type="simple">tyrinova@bk.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>Моренкова</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Morenkova</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Моренкова Анастасия Юрьевна — очный аспирант.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Postgraduate Student, Research Institute of Fundamental and Clinical Immunology.</p><p>Novosibirsk</p></bio><email xlink:type="simple">morenkovasp@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>Федорова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федорова Анастасия Валерьевна — младший научный сотрудник.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Junior Research Associate, Institute of Clinical and Experimental Lymphology, Branch of Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences.</p><p>Novosibirsk</p></bio><email xlink:type="simple">fedorovaav11@yandex.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>Тихонова</surname><given-names>М. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhonova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тихонова Марина Александровна — кпндидат биологических наук, старший научный сотрудник.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>PhD (Biology), Senior Research Associate, Research Institute of Fundamental and Clinical Immunology.</p><p>Novosibirsk</p></bio><email xlink:type="simple">martix-59@mail.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>Ильина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильина Надежда Александровна — кандидат медицинских наук, врач-ревматолог.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>PhD (Medicine), Rheumatologist, Research Institute of Fundamental and Clinical Immunology.</p><p>Novosibirsk</p></bio><email xlink:type="simple">nadya5481@mail.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>Чумасова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chumasova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чумасова Оксана Александровна — кандидат медицинских наук, врач-ревматолог.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>PhD (Medicine), Rheumatologist, Research Institute of Fundamental and Clinical Immunology.</p><p>Novosibirsk</p></bio><email xlink:type="simple">chumoks@mail.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>Сизиков</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizikov</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сизиков Алексей Эдуардович — кандидат медицинских наук, заведующий отделением.</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>PhD (Medicine), Head of Department, Research Institute of Fundamental and Clinical Immunology.</p><p>Novosibirsk</p></bio><email xlink:type="simple">sizikovae@niikim.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБНУ «Научно-исследовательский институт фундаментальной и клинической иммунологии»<country>Россия</country></aff><aff xml:lang="en">Research Institute of Fundamental and Clinical Immunology<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Научно-исследовательский институт клинической и экспериментальной лимфологии — филиал ФГБНУ «Федеральный исследовательский центр Институт цитологии и генетики Сибирского отделения Российской академии наук»<country>Россия</country></aff><aff xml:lang="en">Institute of Clinical and Experimental Lymphology, Branch of Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences<country>Russian Federation</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>1079</fpage><lpage>1084</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тыринова Т.В., Моренкова А.Ю., Федорова А.В., Тихонова М.A., Ильина Н.А., Чумасова О.А., Сизиков А.Э., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Тыринова Т.В., Моренкова А.Ю., Федорова А.В., Тихонова М.A., Ильина Н.А., Чумасова О.А., Сизиков А.Э.</copyright-holder><copyright-holder xml:lang="en">Tyrinova T.V., Morenkova A.Y., Fedorova A.V., Tikhonova M.A., Ilina N.A., Chumasova O.A., Sizikov A.E.</copyright-holder><license 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/2696">https://www.mimmun.ru/mimmun/article/view/2696</self-uri><abstract><p>Большое значение в патогенезе аксиального спондилоартрита (АксСп) отводится клеткам врожденного иммунитета, в том числе клеткам миелоидного ряда — супрессорным клеткам миелоидного происхождения (МС). МС представляют гетерогенную популяцию незрелых клеток, способных подавлять реакции врожденного и приобретенного иммунитета с наиболее выраженной супрессорной активностью в отношении Т-клеток. Терапия генно-инженерными биологическими препаратами позволяет снизить клинико-лабораторную активность заболевания у больных АксСп, однако их эффективность широко варьирует у разных пациентов. Настоящее исследование направлено на изучение различных субпопуляций МС и их супрессорного потенциала при АксСп, в зависимости от ответа на терапию генно-инженерными биологическими препаратами. В исследование были включены пациенты с АксСп с продолжительностью заболевания 16,5 лет (медиана); HLA-B27 (+) статус был выявлен в 79% случаев. Все пациенты в течение как минимум последних 12 недель получали биологическую терапию, в том числе ингибиторы TNF (этанерцепт, цертолизумаб пэгол, адалимумаб или голимумаб) или ингибиторы IL-17 (секукинумаб, иксекизумаб или нетакимаб). Относительное содержание гранулоцитарных МС (Г-МС, Lin-HLA-DR-CD33+CD66b+), моноцитарных МС (М-МС, HLA-DRlow/-CD14+), МС ранних стадий дифференцировки (Р-МС, Lin-HLA-DR-CD33+CD66b-), а также внутриклеточную экспрессию аргиназы-1 оценивали методом проточной цитометрии. Пациенты со стабильным ответом на биологическую терапию значимо не отличались от здоровых доноров по содержанию всех трех популяций МС в периферической крови. Пациенты с АксСп, не отвечающие на терапию, демонстрировали повышенное относительное и абсолютное количество Р-МС по сравнению со здоровыми донорами (рU = 0,01 и рU = 0,02 соответственно) и пациентами со стабильным ответом (рU = 0,03 и рU = 0,07 соответственно). При этом повышенное содержание Р-МС в случае отсутствия ответа на терапию ассоциировалось с показателями активности — СОЭ (Rs = 0,821; p = 0,023), СРБ (Rs = 0,714 p = 0,07) и ASDASСРБ (Rs = 0,829; p = 0,042). В группе пациентов со стабильным ответом корреляционной зависимости между активностью заболевания и содержанием МС не обнаружено. Для оценки супрессорного потенциала МС была проанализирована экспрессия внутриклеточной молекулы аргиназа-1, которая участвует в ингибировании Т-клеточного ответа. Пациенты со стабильным ответом характеризовались повышенной экспрессией аргиназы-1 в Р-МС (рU = 0,02). При отсутствии ответа на терапию значимых изменений в экспрессии Arg-1 не выявлено, однако доля Arg-1-экспрессирующих Г-МС находилась в прямой сопряженности с индексами воспаления ASDAScoэ (Rs = 0,857; p = 0,014) и BASDAI (Rs = 0,785; p = 0,036). Таким образом, Р-МС, а также экспрессия супрессорной молекулы Arg-1 в МС могут служить биомаркерами эффективности ответа на проводимую терапию генно-инженерными биологическими препаратами, а также выступать в роли потенциальных маркеров-кандидатов с точки зрения раннего предиктора ответа на проводимую терапию.</p></abstract><trans-abstract xml:lang="en"><p>Innate immune cells, including myeloid cells — myeloid derived suppressor cells (MDSCs) — are supposed to play an important role in the pathogenesis of axial spondyloarthritis (AxSp). Myeloid derived suppressor cells represent a heterogeneous population of immature cells capable of suppressing innate and adaptive immune responses with the most pronounced suppressor activity against T cells. Biological disease-modifying antirheumatic drugs (bDMARDs) can reduce the clinical and laboratory disease activity, but their effectiveness varies widely in different patients with AxSp. The present study is aimed at studying MDSCs subpopulations and their suppressive function depending on the response to bDMARD therapy in AxSp. The study included AxSp patients with a disease duration of 16.5 years (median); HLA-B27 (+) status was detected in 79% of cases. All patients received bDMARDs at least the past 12 weeks, including TNF inhibitors (etanercept, certolizumab pegol, adalimumab, or golimumab) or IL-17 inhibitors (secukinumab, ixekizumab, or netakimab). Percentage of granulocytic MDSCs (G-MDSCs, Lin-HLA-DR-CD33+CD66b+), monocytic MDSCs (M-MDSCs, HLA-DRlow/-CD14+), MDSCs of early stage differentiation (E-MDSCs, Lin-HLA-DR- CD33+CD66b-), as well as intracellular expression of arginase-1 was assessed by flow cytometry. Frequency of circulating MDSC subpopulations of patients with a stable response to bDMARDs (responders) did not differ significantly compared to healthy donors. Patients not responding to bDMARDs therapy showed increased relative and absolute number of E-MDSCs compared to healthy donors (pU = 0.01 and pU = 0.02, respectively) and the responders (pU = 0.03 and pU = 0.07, respectively). Increased percentage of E-MDSCs was positively correlated to disease activity — ESR (Rs = 0.821; p = 0.023), CRP (Rs = 0.714; p = 0.07) and ASDASCRP (Rs = 0.829; p = 0.042) in the non-responder group. Responder patients exhibited no correlation between disease activity and circulating MDSCs. The suppressor potential of MDSCs was analyzed by the intracellular expression of arginase-1 molecule which is involved in the inhibition of T cell response. Patients with the stable response were characterized by increased expression of arginase-1 in E-MDSCs compared to donors (pU = 0.02). Non-responders did not demonstrate significant changes in Arg-1 expression, however, the percentage of arginase-1-expressing G-MDSCs was positively correlated to indexes ASDASESR (Rs = 0.857; p = 0.014) and BASDAI (Rs = 0.785; p = 0.036). Thus, E-MDSCs as well as arginase-1 expression in MDSCs may serve as biomarkers of effectiveness bDMARD therapy, and act as potential candidate predictors of response to therapy in AxSp.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>миелоидные супрессоры</kwd><kwd>аксиальный спондилоартрит</kwd><kwd>биологическая терапия</kwd><kwd>аргиназа-1</kwd><kwd>ингибитор TNF</kwd><kwd>ингибитор IL-17</kwd></kwd-group><kwd-group xml:lang="en"><kwd>myeloid-derived suppressor cells</kwd><kwd>axial spondyloarthritis</kwd><kwd>biological therapy</kwd><kwd>arginase-1</kwd><kwd>TNF inhibitor</kwd><kwd>IL-17 inhibitor</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>The study was funded by budget of Research Institute of Fundamental and Clinical Immunology (theme No. 122011800108-0).</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">Biggioggero M., Favalli E.G. 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