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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">Molekulyarnaya Meditsina (Molecular medicine)</journal-id><journal-title-group><journal-title xml:lang="en">Molekulyarnaya Meditsina (Molecular medicine)</journal-title><trans-title-group xml:lang="ru"><trans-title>Молекулярная медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1728-2918</issn><issn publication-format="electronic">2499-9490</issn><publisher><publisher-name xml:lang="en">Russkiy Vrach Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">113207</article-id><article-id pub-id-type="doi">10.29296/24999490-2020-01-06</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>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">The role of SWI/SNF chromatin remodeler composition in sensitivity to GSK126 and ABT263</article-title><trans-title-group xml:lang="ru"><trans-title>Роль композиции ремоделера хроматина SWI/SNF в чувствительности к ингибиторам GSK126 и ABT263</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fatkhutdinov</surname><given-names>N. R</given-names></name><name xml:lang="ru"><surname>Фатхутдинов</surname><given-names>Н. Р</given-names></name></name-alternatives><email>nrfatkhutdinov@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zhang</surname><given-names>R.</given-names></name><name xml:lang="ru"><surname>Чжан</surname><given-names>Р.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kiyamova</surname><given-names>R. G</given-names></name><name xml:lang="ru"><surname>Киямова</surname><given-names>Р. Г</given-names></name></name-alternatives><bio xml:lang="en"><p>Research Laboratory «Biomarker», Department of Biochemistry, Biotechnology and Pharmacology, Institute of Fundamental Medicine and Biology</p></bio><bio xml:lang="ru"><p>НИЛ «Биомаркер», кафедра биохимии, биотехнологии и фармакологии, Институт фундаментальной медицины и биологии</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan Federal University</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Казанский федеральный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">The Wistar Institute</institution></aff><aff><institution xml:lang="ru">Вистаровский институт</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2020</year></pub-date><volume>18</volume><issue>1</issue><issue-title xml:lang="en">VOL 18, NO1 (2020)</issue-title><issue-title xml:lang="ru">ТОМ 18, №1 (2020)</issue-title><fpage>31</fpage><lpage>35</lpage><history><date date-type="received" iso-8601-date="2022-11-18"><day>18</day><month>11</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Russkiy Vrach Publishing House</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, ИД "Русский врач"</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Russkiy Vrach Publishing House</copyright-holder><copyright-holder xml:lang="ru">ИД "Русский врач"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2025-01-15"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/1728-2918/article/view/113207">https://journals.eco-vector.com/1728-2918/article/view/113207</self-uri><abstract xml:lang="en"><p>Introduction. Ovarian clear cell carcinoma (OCCC) is a subtype of epithelial ovarian cancer characterized by frequent mutations in the ARID1A gene and low sensitivity to standard-of-care chemotherapeutic agents. The aim of the study. To determine the role of ARID1A in sensitivity of OCCCs to GSK126 and ABT263 Methods. ARID1A-mutant OCCC cell lines were used as study models. The effects of EZH2 andBCL2 inhibition on cellular proliferation were determined by 3D-colony formation assay using Matrigel. Lentiviral particles carryingpLX304-ARID1A vector were used for ARID1A restoration. Results. ARID1A-mutant OCCC cells are susceptible to EZH2 and BCL2 inhibition. Combination of ABT263 and GSK126 further decreases cellular proliferation. Sensitivity to aforementioned targeted therapies is dependent on ARID1A expression: restoration of wild type ARID1A in ARID1A-mutant OCCCs leads to the decrease in efficacy of EZH2 and BCL2 inhibitors. Conclusion. ARID1A is a key factor determining sensitivity of OCCCs to GSK126 and ABT263.</p></abstract><trans-abstract xml:lang="ru"><p>Введение. Светлоклеточная карцинома яичника (СКЯ) - подтип эпителиального рака яичника, характеризующийся высокой частотой мутаций в гене ARID1A и низкой чувствительностью к применяемым химиотерапевтическим препаратам. Цель исследования. Установить роль ARID1A в чувствительности клеток СКЯ к ингибитору GSK126 фермента EZH2 и ингибитору ABT263 апоптотического белка BCL2. Методы. В качестве модели использовались клеточные линии СКЯ с мутациями в гене ARID1A TOV21G и OVTOKO. Влияние ингибирования EZH2 и BCL2 на пролиферацию клеток исследовали методом формирования колоний в трехмерной среде с использованием Матригеля. Восстановление экспрессии ARID1A проводили с помощью лентивирусных частиц, несущих вектор pLX304-ARID1A. Результаты. Клетки СКЯ с мутацией в гене ARID1A чувствительны к ингибированию EZH2 и BCL2. Комбинирование ингибиторов GSK126 и ABT263 приводит к более выраженному подавлению роста клеток (на 37,21+3,48 и 30,2+3,4% соответственно). Чувствительность к указанной таргетной терапии зависит от экспрессии ARID1A: восстановление экспрессии ARID1A дикого типа в клетках СКЯ с мутацией в гене ARID1A приводит к понижению эффективности комбинации ингибиторов EZH2 и BCL2 на 51,5+5,97%. Заключение. ARID1A является ключевым фактором, влияющим на чувствительность клеток СКЯ к ингибиторам GSK126 и ABT263.</p></trans-abstract><kwd-group xml:lang="en"><kwd>ARID1A</kwd><kwd>SWI/SNF</kwd><kwd>EZH2</kwd><kwd>ovarian cancer</kwd><kwd>ARID1A</kwd><kwd>SWI/SNF</kwd><kwd>EZH2</kwd><kwd>epigenetics</kwd><kwd>apoptosis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак яичника</kwd><kwd>эпигенетика</kwd><kwd>апоптоз</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Reid B.M., Permuth J.B., Sellers T.A. 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