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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">11252</article-id><article-id pub-id-type="doi">10.32607/actanaturae.11252</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Research Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экспериментальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Suppression of the Immune Response by Syngeneic Splenocytes Adoptively Transferred to Sublethally Irradiated Mice</article-title><trans-title-group xml:lang="ru"><trans-title>Адоптивный перенос сингенных спленоцитов подавляет иммунный ответ сублетально облученных мышей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kalinina</surname><given-names>Anastasia A.</given-names></name><name xml:lang="ru"><surname>Калинина</surname><given-names>Анастасия А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>aakalinina89@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Khromykh</surname><given-names>Ludmila M.</given-names></name><name xml:lang="ru"><surname>Хромых</surname><given-names>Людмила М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>lkhromykh@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kazansky</surname><given-names>Dmitry B.</given-names></name><name xml:lang="ru"><surname>Казанский</surname><given-names>Дмитрий Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>kazansky1@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Deikin</surname><given-names>Alexey V.</given-names></name><name xml:lang="ru"><surname>Дейкин</surname><given-names>Алексей В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>deikin@rambler.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Silaeva</surname><given-names>Yulia Yu.</given-names></name><name xml:lang="ru"><surname>Силаева</surname><given-names>Юлия Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>yulya.silaeva@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal State Budgetary Institution “N.N. Blokhin National Medical Research Center of Oncology” of the Ministry of Health of the Russian Federation</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Министерства здравоохранения Российской Федерации</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Core Facility Centre, Institute of Gene Biology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Центр коллективного пользования Института биологии гена РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Центр высокоточного редактирования и генетических технологий для биомедицины Института биологии гена РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2021</year></pub-date><volume>13</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>116</fpage><lpage>126</lpage><history><date date-type="received" iso-8601-date="2020-11-05"><day>05</day><month>11</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2021-01-20"><day>20</day><month>01</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Kalinina A.A., Khromykh L.M., Kazansky D.B., Deikin A.V., Silaeva Y.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Калинина А.А., Хромых Л.М., Казанский Д.Б., Дейкин А.В., Силаева Ю.Ю.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Kalinina A.A., Khromykh L.M., Kazansky D.B., Deikin A.V., Silaeva Y.Y.</copyright-holder><copyright-holder xml:lang="ru">Калинина А.А., Хромых Л.М., Казанский Д.Б., Дейкин А.В., Силаева Ю.Ю.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/11252">https://actanaturae.ru/2075-8251/article/view/11252</self-uri><abstract xml:lang="en"><p>The peripheral T-cell pool consists of several, functionally distinct populations of CD8+ T cells. CD44 and CD62L are among the major surface markers that allow us to define T-cell populations. The expression of these molecules depends on the functional status of a T lymphocyte. Under lymphopenic conditions, peripheral T cells undergo homeostatic proliferation and acquire the memory-like surface phenotype CD44hiCD62Lhi. However, the data on the functional activity of these cells remains controversial. In this paper, we analyzed the effects of the adoptive transfer of syngeneic splenocytes on the recovery of CD8+ T cells in sublethally irradiated mice. Our data demonstrate that under lymphopenia, donor lymphocytes form a population of memory-like CD8+ T cells with the phenotype CD122+CD5+CD49dhiCXCR3+ that shares the phenotypic characteristics of true memory cells and suppressive CD8+ T cells. Ex vivo experiments showed that after adoptive transfer in irradiated mice, T cells lacked the functions of true effector or memory cells; the allogeneic immune response and immune response to pathogens were greatly suppressed in these mice.</p></abstract><trans-abstract xml:lang="ru"><p>Пул периферических Т-лимфоцитов состоит из нескольких функционально различных популяций CD8<sup>+ </sup>клеток. CD44 и CD62L – основные поверхностные маркеры, по которым можно идентифицировать популяции Т-клеток и экспрессия которых зависит от функционального состояния Т-лимфоцита. В условиях лимфопении периферические Т-лимфоциты гомеостатически пролиферируют и приобретают фенотип суррогатных клеток памяти (memory-like, T<sub>ML</sub>) CD44<sup>hi</sup>CD62L<sup>hi</sup>. Однако информация о функциональной активности данных клеток остается противоречивой. Нами изучено влияние адоптивного переноса сингенных спленоцитов на процессы восстановления CD8<sup>+ </sup>Т-клеток сублетально облученных мышей. Показано, что в условиях лимфопении донорские лимфоциты формируют популяцию CD8<sup>+ </sup>Т-клеток с фенотипом CD122<sup>+</sup>СD5<sup>+</sup>CD49d<sup>hi</sup>CXCR3<sup>+</sup>, который сочетает в себе фенотипические характеристики истинных клеток памяти и супрессорных CD8<sup>+ </sup>Т-клеток. В экспериментах <italic>ex vivo </italic>установлено, что после адоптивного переноса Т-лимфоциты облученных мышей не проявляют функциональной активности истинных эффекторов клеток или клеток памяти, а иммунные ответы на аллоантигены и бактериальные патогены у этих животных оказываются значительно подавленными.</p></trans-abstract><kwd-group xml:lang="en"><kwd>memory-like T cell</kwd><kwd>lymphopenia</kwd><kwd>homeostatic proliferation</kwd><kwd>CD44</kwd><kwd>CD62L</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>суррогатная Т-клетка памяти</kwd><kwd>лимфопения</kwd><kwd>гомеостатическая пролиферация</kwd><kwd>CD44</kwd><kwd>CD62L</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Мегагрант</institution></institution-wrap><institution-wrap><institution xml:lang="en">Megagrant</institution></institution-wrap></funding-source><award-id>14.W03.31.0020</award-id></award-group><funding-statement xml:lang="en">This study was supported by the Megagrant (Agreement №14.W03.31.0020 between the Ministry of Science and Education of the Russian Federation and Institute of Gene Biology, Russian Academy of Sciences). This work was performed using the equipment of IGB RAS facilities supported by the Ministry of Science and Higher Education of the Russian Federation</funding-statement><funding-statement xml:lang="ru">Данное исследование проведено при финансовой поддержке Мегагранта (Договор №14.W03.31.0020 между Министерством науки и высшего образования Российской Федерации и Федеральным государственным бюджетным учреждением науки «Институт биологии гена» Российской академии наук). Работу проводили с использованием оборудования Центра коллективного пользования ФГБУН ИБГ РАН при финансовой поддержке Министерства науки и высшего образования Российской Федерации.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Zhang Q., Lakkis F.G. // Front. Immunol. 2015. V. 5. 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