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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">rmt</journal-id><journal-title-group><journal-title xml:lang="ru">Общая реаниматология</journal-title><trans-title-group xml:lang="en"><trans-title>General Reanimatology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-9779</issn><issn pub-type="epub">2411-7110</issn><publisher><publisher-name>FSBI "SRIGR" RAMS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15360/1813-9779-2023-1-2292</article-id><article-id custom-type="elpub" pub-id-type="custom">rmt-2292</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>3D сфероиды - клеточная модель для изучения воздействия гипоксии на эпикардиальное микроокружение</article-title><trans-title-group xml:lang="en"><trans-title>3D Spheroids — a Cellular Model for Studying the Effects of Hypoxia on the Epicardial Microenvironment</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>Дергилев</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dergilev</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Владимирович Дергилев</p><p>Лаборатория ангиогенеза</p><p>121552, г. Москва, ул. 3-я Черепковская, д. 15а</p></bio><bio xml:lang="en"><p>Konstantin V. Dergilev</p><p>Laboratory of Angiogenesis</p><p>15a Cherepkovskaya 3rd Str., 121552 Moscow, Russia</p></bio><email xlink:type="simple">doctorkote@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>Цоколаева</surname><given-names>З. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsokolaeva</surname><given-names>Z. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зоя Ивановна Цоколаева</p><p>Лаборатория ангиогенеза </p><p>121552, г. Москва, ул. 3-я Черепковская, д. 15а</p></bio><bio xml:lang="en"><p>Zoya I. Tsokolaeva</p><p>Laboratory of Angiogenesis</p><p>15a Cherepkovskaya 3rd Str., 121552 Moscow, Russia; 25 Petrovka Str., Bldg. 2, 107031 Moscow, Russia</p><p> </p></bio><email xlink:type="simple">tsokolaevazoya@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>Белоглазова</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Beloglazova</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Борисовна Белоглазова</p><p>Лаборатория ангиогенеза Института экспериментальной медицины</p><p>121552, г. Москва, ул. 3-я Черепковская, д. 15а; 107031, г. Москва, ул. Петровка, д. 25, стр. 2</p></bio><bio xml:lang="en"><p>Irina B. Beloglazova</p><p>Laboratory of Angiogenesis</p><p>15a Cherepkovskaya 3rd Str., 121552 Moscow, Russia</p></bio><email xlink:type="simple">beloglazova@cardio.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>Трактуев</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Traktuev</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Трактуев</p><p>Флорида, 32610, Гейнсвилл, M421, 1600 SW Арчер рд.</p></bio><bio xml:lang="en"><p>Dmitry O. Traktuev</p><p>1600 SW Archer Rd, M421 Gainesville, FL 32610 USA</p></bio><email xlink:type="simple">tracktuev@cardio.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Расулова</surname><given-names>М. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Rasulova</surname><given-names>M. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мохидил Расулова </p><p>150100, Ферганская область город Фергана, улица Янги Турон №2-А</p></bio><bio xml:lang="en"><p>Mohidil T. Rasulova</p><p>2A Yangi Turon Str., 150100 Fergana, Fergana region, Uzbekistan</p></bio><email xlink:type="simple">rasulova@cardio.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Парфенова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Parfenova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Викторовна Парфенова</p><p>Лаборатория ангиогенеза </p><p>121552, г. Москва, ул. 3-я Черепковская, д. 15а</p></bio><bio xml:lang="en"><p>Elena V. Parfenova</p><p>Laboratory of Angiogenesis</p><p>15a Cherepkovskaya 3rd Str., 121552 Moscow, Russia</p></bio><email xlink:type="simple">yeparfyon@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр кардиологии им. акад. Е. И. Чазова Минздрава России, Институт экспериментальной кардиологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Acad. Chazov National Medical Research Center for Cardiology, Experimental Cardiology Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр кардиологии им. акад. Е. И. Чазова Минздрава России, Институт экспериментальной кардиологии; &#13;
НИИ общей реаниматологии им. В. А. Неговского Федерального научно-клинического центра реаниматологии и реабилитологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Acad. Chazov National Medical Research Center for Cardiology, Experimental Cardiology Institute; &#13;
V. A. Negovsky Research Institute of General Reanimatology,&#13;
Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Отделение регенеративной медицины центра кардиоваскулярной медицины медицинского института Флориды</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Regenerative Medicine Department, Center for Cardiovascular Medicine, Florida Medical Institute</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Ферганский медицинский институт общественного здоровья</institution><country>Узбекистан</country></aff><aff xml:lang="en"><institution>Fergana Medical Institute for Public Health</institution><country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>04</day><month>02</month><year>2023</year></pub-date><volume>19</volume><issue>1</issue><fpage>43</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дергилев К.В., Цоколаева З.И., Белоглазова И.Б., Трактуев Д.О., Расулова М.Т., Парфенова Е.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Дергилев К.В., Цоколаева З.И., Белоглазова И.Б., Трактуев Д.О., Расулова М.Т., Парфенова Е.В.</copyright-holder><copyright-holder xml:lang="en">Dergilev K.V., Tsokolaeva Z.I., Beloglazova I.B., Traktuev D.O., Rasulova M.T., Parfenova E.V.</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.reanimatology.com/rmt/article/view/2292">https://www.reanimatology.com/rmt/article/view/2292</self-uri><abstract><p>Фундаментальные исследования последних лет позволили переосмыслить молекулярные и клеточные механизмы онтогенеза сердца и его репарации после повреждения. Особую актуальность приобретает изучение эпикарда — наружного, плотно примыкающего к миокарду слоя сердечной стенки, образованного гетерогенной популяцией клеток эпикардиального мезотелия, коллагеновыми и эластическими волокнами, являющегося важным участником репаративных процессов. Изучение эпикарда затруднено в связи с анатомическими ограничениями и отсутствием релевантных клеточных моделей.</p><sec><title>Цель исследования</title><p>Цель исследования. Разработка 3D модели эпикардиального микроокружения и оценка влияния гипоксии на ее характеристики.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Сборку сфероидов проводили в V-образных культуральных чашках с низкоадгезионным покрытием. Характеристику сфероидов выполняли с использованием иммунофлуоресцентного окрашивания криосрезов, гистологических методов, ПЦР в реальном времени.</p></sec><sec><title>Результаты</title><p>Результаты. Культивирование клеток в низкоадгезионных условиях в V-образных культуральных чашках ведет к формированию сфероидов, имеющих размер 136±21 мкм и показатели жизнеспособности клеток более 98%. Клетки в составе сфероидов, культивированных в условиях нормоксии, образовывали плотные межклеточные контакты, характеризовались низким уровнем пролиферации и способностью синтезировать белки внеклеточного матрикса. В условиях гипоксии клетки сфероидов частично утрачивали межклеточные контакты, приобретали веретенообразную форму, экспрессировали HIF1a, SNAI1, ACTA2, FN1, COL1A1 и накапливали коллаген, что указывает на признаки активации мезотелиально-мезенхимального перехода и сходные черты с клеточным ответом эпикарда на острое ишемическое повреждение in vivo.</p></sec><sec><title>Заключение</title><p>Заключение. На основе клеточного сфероида разработали и охарактеризовали модель эпикарда, которая может реализовать клеточный ответ на воздействие гипоксического стимула и быть использована для изучения механизмов регуляции эпикардиального микроокружения, тестирования лекарственных препаратов направленного действия.</p></sec></abstract><trans-abstract xml:lang="en"><p>Fundamental research in recent years has allowed us to reassess the molecular and cellular mechanisms of cardiac ontogenesis and its repair after damage. The epicardium, the outer, tightly adjoining layer of the cardiac wall formed by epicardial mesothelial cells, collagen and elastic ﬁbers, has gained special relevance as an important participant of reparative processes. Better insight into poorly understood epicardial function is challenged due to anatomical issues and lack of relevant cellular models.</p><p>The aim of this study was to develop a spheroid 3D model of the epicardial microenvironment and determine responses of spheroids to hypoxia.</p><sec><title>Materials and methods</title><p>Materials and methods. Spheroids were harvested in V-shaped culture dishes with a low adhesion coating. Immunofluorescent staining of cryosections, histological methods and real-time PCR were used for characterization of cultured spheroids.</p></sec><sec><title>Results</title><p>Results. We demonstrated that cultivation of cells under low adhesion conditions in V-shaped culture dishes resulted in the formation of spheroids with an average size of 136+21 µm and cell viability rates of over 98%. The cells in the spheroids cultured under normoxic conditions formed tight junctions and were characterized by a low level of proliferation and the ability to synthesize extracellular matrix proteins. Under hypoxia cells in the spheroids showed partial loss of intercellular contacts, acquired a spindle shape, started to express HIF1a, SNAIL, COL1Al and accumulate collagen. All these features demonstrated the activation of mesothelial(endothelial)-mesenchymal transition strongly resembling epicardial cellular responses to ischemia in vivo.</p></sec><sec><title>Conclusion</title><p>Conclusion. An epicardial spheroid cell culture model suitable for study cellular responses to hypoxic environment was developed. This model can be used to clarify mechanisms regulating epicardial microenvironment and test new targeted candidate drugs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сфероид</kwd><kwd>гипоксия</kwd><kwd>репарация сердца</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spheroid</kwd><kwd>hypoxia</kwd><kwd>cardiac repair</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке гранта РФФИ 19-29-04164.</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">Mendis S., Graham I., Narula J. Addressing the global burden of cardiovascular diseases; need for scalable and sustainable frameworks. Glob Heart. 2022; 17 (1): 48. DOI: 10.5334/gh.1139. PMID: 36051329.</mixed-citation><mixed-citation xml:lang="en">Mendis S., Graham I., Narula J. 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