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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-CBS-2752</article-id><article-id custom-type="elpub" pub-id-type="custom">mimmun-2752</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>Супрамолекулярные комплексы на основе кукурбит[7]урила и соединений платины влияют на экспрессию молекулы CTLA-4 на Т-регуляторных клетках</article-title><trans-title-group xml:lang="en"><trans-title>Cucurbituril-based Supramolecular complexes with platinum compounds influence on expression of CTLA-4 on Regulatory T cells</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Актанова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aktanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Актанова Алина Александровна – младший научный сотрудник лаборатории клинической иммунопатологии</p><p>630099, г. Новосибирск, ул. Ядринцевская, 14</p></bio><bio xml:lang="en"><p>Alina A. Aktanova, Junior Research Associate, Laboratory of Clinical Immunopathology</p><p>14 Yadrintsevskaya St Novosibirsk 630099</p></bio><email xlink:type="simple">aktanova_al@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>Быкова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Быкова Мария В. – лаборант-исследователь лаборатории клинической иммунопатологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Maria V. Bykova, Laboratory Assistant, Laboratory of Clinical Immunopathology</p><p>Novosibirsk</p></bio><email xlink:type="simple">maria18021997@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>Боева</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Boeva</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Боева Ольга С. – студент, лаборант-исследователь лаборатории клинической иммунопатологии ФГБНУ «Научно-исследовательский институт фундаментальной и клинической иммунологии»; студент ФГАОУ ВО «Новосибирский национальный исследовательский государственный университет»</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Olga S. Boeva O.S., Student, Laboratory Assistant, Laboratory of Clinical Immunopathology, Research Institute of Fundamental and Clinical Immunology; Student, Novosibirsk National Research State University</p><p>Novosibirsk</p></bio><email xlink:type="simple">starchenkova97@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>Пашкина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пашкина Екатерина А. – кандидат биологических наук, старший научный сотрудник лаборатории клинической иммунопатологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Ekaterina A. Pashkina, PhD (Biology), Senior Research Associate, Laboratory of Clinical Immunopathology</p><p>Novosibirsk</p></bio><email xlink:type="simple">pashkina.e.a@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>Гришина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grishina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гришина Любовь В. – кандидат биологических наук, научный сотрудник лаборатории клинической иммунопатологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Lyubov V. Grishina, PhD (Biology), Research Associate, Laboratory of Clinical Immunopathology</p><p>Novosibirsk</p></bio><email xlink:type="simple">l_grishina@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>Козлов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлов Владимир А. – доктор медицинских наук, профессор, академик РАН, заведующий лабораторией клинической иммунопатологии, научный руководитель</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Vladimir A. Kozlov, PhD, MD (Medicine), Professor, Full Member, Russian Academy of Sciences, Head, Laboratory of Clinical Immunopathology, scientific director</p><p>Novosibirsk</p></bio><email xlink:type="simple">vakoz40@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт фундаментальной и клинической иммунологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Fundamental and Clinical Immunology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт фундаментальной и клинической иммунологии»;&#13;
ФГАОУ ВО «Новосибирский национальный исследовательский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute of Fundamental and Clinical Immunology;&#13;
Novosibirsk National Research State 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>01</day><month>06</month><year>2023</year></pub-date><volume>25</volume><issue>3</issue><fpage>697</fpage><lpage>702</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Актанова А.А., Быкова М.В., Боева О.С., Пашкина Е.А., Гришина Л.В., Козлов В.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Актанова А.А., Быкова М.В., Боева О.С., Пашкина Е.А., Гришина Л.В., Козлов В.А.</copyright-holder><copyright-holder xml:lang="en">Aktanova A.A., Bykova M.V., Boeva O.S., Pashkina E.A., Grishina L.V., Kozlov V.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/2752">https://www.mimmun.ru/mimmun/article/view/2752</self-uri><abstract><p>Опухоли занимают лидирующее место по частоте встречаемости в популяции. Не все противоопухолевые лекарственные препараты первой линии позволяют адекватно и эффективно излечивать пациентов. Для некоторых препаратов, например, цитостатиков, характерны широкий спектр побочных эффектов и резистентность опухолей к проводимой ими терапии. На сегодняшний день описаны механизмы действия таких препаратов и предполагаются наиболее вероятные причины резистентности. Для минимизации побочных эффектов и преодоления резистентности используется система доставки лекарственных препаратов на основе кукурбит[<xref ref-type="bibr" rid="cit7">7</xref>]урила (CB[<xref ref-type="bibr" rid="cit7">7</xref>]), которая образовывает супрамолекулярные комплексы с оксалиплатином и карбоплатином.</p><p>Важно принимать во внимание, что большой вклад вносит иммунная система, соединения платины способны оказывать иммуномодулирующее действие на иммунокомпетентные клетки и все больше данных говорит о том, что цитотоксический ответ в отношении опухолевых клеток связывают и с этими свойствами. Опухоль создает специфическое микроокружение, в котором сосредотачивается огромное количество супрессорных клеток. FoxP3+Т-регуляторные клетки рекрутируются опухолью, увеличенное количество этих клеток и повышенные уровни экспрессии CTLA-4 и PD-1 способствуют прогрессированию опухолевого процесса. Данные показатели коррелируют с плохой выживаемостью пациентов. Поэтому необходимо, чтобы противоопухолевые агенты обладали влиянием на данную субпопуляцию клеток и их функциональную активность. В данном исследовании оценивалось влияние кукурбит[<xref ref-type="bibr" rid="cit7">7</xref>]урила, соединений платины и супрамолекулярных комплексов на регуляторные Т-клетки и экспрессию молекул иммунных контрольных точек.</p><p>В исследовании использовались клетки периферической крови условно здоровых доноров (n = 8, средний возраст 29,0±2,4). Полученные стандартным путем мононуклеары инкубировали 72 часа в концентрациях 0,3 мМ и 0,1 мМ для карбоплатина и оксалиплатина соответственно, а также комплексами и CB[<xref ref-type="bibr" rid="cit7">7</xref>] в эквивалентных дозировках, затем пробы окрашивали моноклональными антителами для определения фенотипа и экспрессии иммунных чекпоинт-молекул. </p><p>Мы получили следующие результаты: комплекс CB[<xref ref-type="bibr" rid="cit7">7</xref>]-карбоплатин в стимулированной и нестимулированной культурах достоверно снижал количество FoxP3+Т-регуляторных клеток по сравнению с контролем. При этом карбоплатин и комплекс CB[<xref ref-type="bibr" rid="cit7">7</xref>]-карбоплатин снижали экспрессию CTLA-4 в нестимулированной культуре по сравнению с CB[<xref ref-type="bibr" rid="cit7">7</xref>].</p><p>Комплексы кукурбит[<xref ref-type="bibr" rid="cit7">7</xref>]урилов с соединениями платины являются перспективным противоопухолевым средством с иммуномодулирующими свойствами.</p></abstract><trans-abstract xml:lang="en"><p>Tumors are a leading pathology in the population. Chemotherapy cannot provide adequately and effectively to cure patients. Some medicine, such as cytostatic, are characterized by a wide range of side effects and resistance of solid tumors to chemotherapy by these medicines. In recent research, the mechanisms of action of cytotoxic agents have been described, and the most appropriate causes of resistance have been suggested. Drug delivery system based on Cucurbit[<xref ref-type="bibr" rid="cit7">7</xref>]uril (CB[<xref ref-type="bibr" rid="cit7">7</xref>]) was used to minimize side effects and overcome resistance. CB[<xref ref-type="bibr" rid="cit7">7</xref>] has ability to form host-guest supramolecular complexes with oxaliplatin and carboplatin.</p><p>It is important to consider the immune system maintain to a great role, and platinum compounds are able to have an immunomodulatory effect on immunocompetent cells. There is convincing evidence about the cytotoxic response against tumor cells is also associated with immunomodulating properties. A specific immune microenvironment with high frequency of suppressor cells is made by tumors. FoxP3+ regulatory T cells are recruited by the tumor, an increased number of these cells and expression levels of CTLA-4 and PD-1 on them contribute to the progression of the tumor process. These markers correlate with recurrence and poor survival of the patients. Therefore, it is necessary that antitumor therapy agents have an effect on a subpopulation of regulatory T cells and their functional activity. This study evaluated the effects of cucurbit[<xref ref-type="bibr" rid="cit7">7</xref>] uril, platinum compounds, and supramolecular complexes on FoxP3+ regulatory T cells and the expression of immune checkpoint molecules.</p><p>In this study peripheral blood cells from volunteers (n = 8, average 29.0±2.4) were used. Mononuclear cells obtained in the standard protocol were incubated for 72 h at concentrations of 0.3 and 0.1 mM for carboplatin and oxaliplatin, respectively, as well as complexes and CB[<xref ref-type="bibr" rid="cit7">7</xref>] in equivalent dosages. Next, the samples were labeled with monoclonal antibodies to determine the phenotype and expression of immune checkpoint molecules by flow cytometry.</p><p>We obtained the following results: The CB[<xref ref-type="bibr" rid="cit7">7</xref>]-carboplatin complex in stimulated and non-stimulated cultures significantly reduced the number of FoxP3+ regulatory T cells compared to the control. At the same time, carboplatin and the CB[<xref ref-type="bibr" rid="cit7">7</xref>]-carboplatin complex reduced the expression of CTLA-4 in an non-stimulated culture compared to CB[<xref ref-type="bibr" rid="cit7">7</xref>].</p><p>Complexes of Cucurbit[<xref ref-type="bibr" rid="cit7">7</xref>]urils with platinum compounds are a perspective antitumor agent with immunomodulatory properties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кукурбитурилы</kwd><kwd>макроциклические комплексы</kwd><kwd>карбоплатин</kwd><kwd>оксалиплатин</kwd><kwd>T-регуляторные клетки</kwd><kwd>контрольные точки иммунного ответа</kwd><kwd>проточная цитометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cucurbiturils</kwd><kwd>macrocyclic complexes</kwd><kwd>carboplatin</kwd><kwd>oxaliplatin</kwd><kwd>Tregs</kwd><kwd>immune checkpoint molecules</kwd><kwd>flow cytometry</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This study was supported by Russian Science Foundation according to the research project No. 19-15-00192.</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">Aksoylar H.I., Boussiotis V.A. 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