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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">Almanac of Clinical Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Almanac of Clinical Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Альманах клинической медицины</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-0505</issn><issn publication-format="electronic">2587-9294</issn><publisher><publisher-name xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1612</article-id><article-id pub-id-type="doi">10.18786/2072-0505-2022-50-001</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>ОРИГИНАЛЬНЫЕ 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">Clinical features of the microRNA genes methylation in borderline ovarian tumors and depending on the histological structure in ovarian malignancies</article-title><trans-title-group xml:lang="ru"><trans-title>Клинические особенности метилирования генов микроРНК в пограничных опухолях яичников и в зависимости от гистологического строения злокачественных опухолей яичников</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6246-2444</contrib-id><name-alternatives><name xml:lang="en"><surname>Lukina</surname><given-names>Svetlana S.</given-names></name><name xml:lang="ru"><surname>Лукина</surname><given-names>Светлана Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Research Fellow, Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>науч. сотр. лаборатории патогеномики и транскриптомики</p></bio><email>sveta_sergeevna349@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9398-8075</contrib-id><name-alternatives><name xml:lang="en"><surname>Burdennyy</surname><given-names>Alexey M.</given-names></name><name xml:lang="ru"><surname>Бурденный</surname><given-names>Алексей Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (in Biol.), Leading Research Fellow, Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>канд. биол. наук, вед. науч. сотр. лаборатории патогеномики и транскриптомики</p></bio><email>burdennyy@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7172-0433</contrib-id><name-alternatives><name xml:lang="en"><surname>Filippova</surname><given-names>Elena A.</given-names></name><name xml:lang="ru"><surname>Филиппова</surname><given-names>Елена Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Research Fellow, Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>канд. мед. наук, науч. сотр. лаборатории патогеномики и транскриптомики</p></bio><email>p.lenyxa@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0423-7801</contrib-id><name-alternatives><name xml:lang="en"><surname>Pronina</surname><given-names>Irina V.</given-names></name><name xml:lang="ru"><surname>Пронина</surname><given-names>Ирина Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (in Biol.), Senior Research Fellow, Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>канд. биол. наук, ст. науч. сотр. лаборатории патогеномики и транскриптомики</p></bio><email>zolly_sten@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5856-0017</contrib-id><name-alternatives><name xml:lang="en"><surname>Kazubskaya</surname><given-names>Tatiana P.</given-names></name><name xml:lang="ru"><surname>Казубская</surname><given-names>Татьяна Павловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Oncogeneticist, Senior Research Fellow, Laboratory of Clinical Oncogenetics</p></bio><bio xml:lang="ru"><p>д-р мед. наук, врач-онкогенетик высшей категории, ст. науч. сотр. лаборатории клинической онкогенетики</p></bio><email>oncogen5@ronc.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kushlinsky</surname><given-names>Dmitry N.</given-names></name><name xml:lang="ru"><surname>Кушлинский</surname><given-names>Дмитрий Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Oncologist, Laboratory of Clinical Biochemistry and Laboratorial Diagnostics</p></bio><bio xml:lang="ru"><p>врач-онколог, лаборатория клинической биохимии и лабораторной диагностики</p></bio><email>biochimia@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Utkin</surname><given-names>Dmitriy O.</given-names></name><name xml:lang="ru"><surname>Уткин</surname><given-names>Дмитрий Олегович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Surgeon, Department of Gynaecological Oncology</p></bio><bio xml:lang="ru"><p>врач-хирург первой квалификационной категории, отделение онкогинекологии</p></bio><email>burdennyy@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5188-4094</contrib-id><name-alternatives><name xml:lang="en"><surname>Braga</surname><given-names>Eleonora A.</given-names></name><name xml:lang="ru"><surname>Брага</surname><given-names>Элеонора Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Doctor of Biol. Sci., Professor, Chief Research Fellow, Head of Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>д-р биол. наук, профессор, гл. науч. сотр., заведующая лабораторией патогеномики и транскриптомики</p></bio><email>eleonora10_45@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2668-8096</contrib-id><name-alternatives><name xml:lang="en"><surname>Loginov</surname><given-names>Vitaly I.</given-names></name><name xml:lang="ru"><surname>Логинов</surname><given-names>Виталий Игоревич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (in Biol.), Leading Research Fellow, Laboratory of Pathogenomics and Transcriptomics</p></bio><bio xml:lang="ru"><p>канд. биол. наук, вед. науч. сотр. лаборатории патогеномики и транскриптомики</p></bio><email>loginov7w@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3898-4127</contrib-id><name-alternatives><name xml:lang="en"><surname>Kushlinskii</surname><given-names>Nikolay E.</given-names></name><name xml:lang="ru"><surname>Кушлинский</surname><given-names>Николай Евгеньевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Professor, Member of Russ. Acad. Sci., Head of Laboratory of Clinical Biochemistry and Laboratorial Diagnostics</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор, академик РАН, заведующий лабораторией клинической биохимии и лабораторной диагностики</p></bio><email>biochimia@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of General Pathology and Pathophysiology</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Научно-исследовательский институт общей патологии и патофизиологии»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии имени Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Municipal Oncological Hospital No. 62</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Московская городская онкологическая больница № 62 ДЗМ»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2022-02-23" publication-format="electronic"><day>23</day><month>02</month><year>2022</year></pub-date><pub-date date-type="pub" iso-8601-date="2022-04-28" publication-format="electronic"><day>28</day><month>04</month><year>2022</year></pub-date><volume>50</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>21</fpage><lpage>30</lpage><history><date date-type="received" iso-8601-date="2021-12-13"><day>13</day><month>12</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2022-02-23"><day>23</day><month>02</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Lukina S.S., Burdennyy A.M., Filippova E.A., Pronina I.V., Kazubskaya T.P., Kushlinsky D.N., Utkin D.O., Braga E.A., Loginov V.I., Kushlinskii N.E.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Лукина С.С., Бурденный А.М., Филиппова Е.А., Пронина И.В., Казубская Т.П., Кушлинский Д.Н., Уткин Д.О., Брага Э.А., Логинов В.И., Кушлинский Н.Е.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Lukina S.S., Burdennyy A.M., Filippova E.A., Pronina I.V., Kazubskaya T.P., Kushlinsky D.N., Utkin D.O., Braga E.A., Loginov V.I., Kushlinskii N.E.</copyright-holder><copyright-holder xml:lang="ru">Лукина С.С., Бурденный А.М., Филиппова Е.А., Пронина И.В., Казубская Т.П., Кушлинский Д.Н., Уткин Д.О., Брага Э.А., Логинов В.И., Кушлинский Н.Е.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://almclinmed.ru/jour/article/view/1612">https://almclinmed.ru/jour/article/view/1612</self-uri><abstract xml:lang="en"><p><bold>Background:</bold> Borderline ovarian tumors (BOT) belong to the intermediate type between benign and malignant ovarian neoplasms. Serous borderline tumors share common molecular and genetic characteristics with serous carcinomas. An increase in the methylation level of microRNA (miRNA) genes group has been previously shown during the development and progression of ovarian cancer. However, the study results are contradictory, and their number is not sufficient for a consensus. Current study is the first to search for aberrant methylated genes of the BOT-specific microRNA and for some histological subtypes of ovarian cancer.</p> <p><bold>Materials and methods:</bold> The study was based on a set of 99 paired (tumor/healthy) ovarian tumor samples. Methylation analysis was carried out with quantitative methyl-specific polymerase chain reaction (PCR). Screening for BOT biomarkers was performed in 21 genes of miRNA.</p> <p><bold>Results:</bold> We have found that some miRNA genes (<italic>MIR124-1</italic>, <italic>MIR125B-1</italic>, <italic>MIR129-2</italic>, <italic>MIR132</italic>, <italic>MIR148A</italic>, <italic>MIR193A</italic>, <italic>MIR203A</italic>, <italic>MIR107</italic>, <italic>MIR1258</italic>, <italic>MIR339</italic>) were characterized by a high methylation level in the patients with BOT, compared to that in the tissues of healthy women. At the same time, the methylation level in the patients with malignant ovarian tumors (MOT) either differed slightly or was even lower. For the <italic>MIR129-2</italic>, <italic>MIR132</italic>, <italic>MIR148A</italic>, <italic>MIR203</italic>, <italic>MIR107</italic> and <italic>MIR1258</italic> genes, a higher level of methylation was detected in the BOT patients, compared to the MOT patients. The methylation level of the <italic>MIR148A</italic> gene in the BOT patients was 4-fold higher than that in the MOT (31.3% vs 7.9%, p = 0.047, multiple two-sided Kruskal-Wallis test). The methylation levels of the miRNA genes <italic>MIR148A</italic> and <italic>MIR191</italic> were significantly reduced in serous cystadenocarcinoma and increased in serous and endometrioid adenocarcinomas.</p> <p><bold>Conclusion:</bold> Methylation of the miRNA <italic>MIR148A </italic>and <italic>MIR191</italic> genes is significantly associated with various histological variants of ovarian cancer. We have shown an increased methylation level of a number of miRNA genes in BOT, compared to MOT. In general, epigenetic factors play a role in the clinical differences between histological forms of ovarian cancer and borderline tumors.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Пограничные опухоли яичников (ПОЯ) представляют собой промежуточный тип между доброкачественными и злокачественными новообразованиями яичников. Серозные пограничные опухоли имеют общие молекулярные и генетические особенности с серозными карциномами. Ранее было показано повышение уровня метилирования группы генов микроРНК (миРНК) при развитии и прогрессии рака яичников. Однако результаты исследований противоречивы, а их количество недостаточно для формирования единого мнения. В данной работе впервые проведен поиск аберрантно метилированных генов миРНК, специфичных для ПОЯ и некоторых гистологических подтипов рака яичников.</p> <p><bold>Материал и методы.</bold> В исследовании использовали выборку из 99 парных (опухоль/норма) образцов опухолей яичников. Анализ метилирования проводился с применением метода количественной метилспецифичной полимеразной цепной реакции. Скрининг биомаркеров ПОЯ выполнен среди 21 гена миРНК.</p> <p><bold>Результаты.</bold> Мы обнаружили, что некоторые гены миРНК (<italic>MIR124-1, MIR125B-1, MIR129-2, MIR132, MIR148A, MIR193A, MIR203A, MIR107, MIR1258, MIR339</italic>) характеризовались высоким уровнем метилирования в группе больных ПОЯ в сравнении с тканями здоровых женщин. При этом в группе больных злокачественными опухолями яичников (ЗОЯ) уровень их метилирования либо отличался незначительно, либо даже снижался. Для генов <italic>MIR129-2, MIR132, MIR148A, MIR203, MIR107</italic> и <italic>MIR1258 </italic>выявлен более высокий уровень метилирования в образцах больных ПОЯ в сравнении с образцами больных ЗОЯ. Уровень метилирования гена <italic>MIR148A</italic> в ПОЯ был в 4 раза выше, чем в ЗОЯ (31,3% против 7,9%, р = 0,047, множественный двусторонний тест Краскела – Уоллиса). Уровни метилирования генов миРНК <italic>MIR148A</italic> и <italic>MIR191</italic> статистически значимо снижены в серозной цистаденокарциноме и повышены в серозной и эндометриоидной аденокарциномах.</p> <p><bold>Заключение.</bold> Метилирование генов миРНК <italic>MIR148A</italic> и <italic>MIR191</italic> связано с различными гистологическими вариантами рака яичников. Показан повышенный уровень метилирования ряда генов миРНК в ПОЯ в сравнении с ЗОЯ. В целом отмечено влияние эпигенетических факторов на клинические различия гистологических форм рака яичников и пограничной формы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>borderline ovarian tumors</kwd><kwd>malignant ovarian tumors</kwd><kwd>histological type of ovarian cancer</kwd><kwd>microRNA gene methylation</kwd><kwd>MIR148A gene</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пограничные опухоли яичников</kwd><kwd>злокачественные опухоли яичников</kwd><kwd>гистологический тип рака яичников</kwd><kwd>метилирование генов микроРНК</kwd><kwd>ген MIR148A</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд, грант</institution></institution-wrap></funding-source><award-id>20-15-00368</award-id></award-group><funding-statement xml:lang="ru">Российский научный фонд (№ 20-15-00368)</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shih IM, Kurman RJ. Ovarian tumorigenesis: a proposed model based on morphological and molecular genetic analysis. Am J Pathol. 2004;164(5):1511–1518. doi: 10.1016/s0002-9440(10)63708-x.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Hauptmann S, Friedrich K, Redline R, Avril S. Ovarian borderline tumors in the 2014 WHO classification: evolving concepts and diagnostic criteria. Virchows Arch. 2017;470(2):125–142. doi: 10.1007/s00428-016-2040-8.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Acs G. Serous and mucinous borderline (low malignant potential) tumors of the ovary. Pathol Patterns Rev. 2005;123(Suppl 1):S13–S57. doi: 10.1309/J6PXXK1HQJAEBVPM.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Sun Y, Xu J, Jia X. The Diagnosis, Treatment, Prognosis and Molecular Pathology of Borderline Ovarian Tumors: Current Status and Perspectives. Cancer Manag Res. 2020;12:3651–3659. doi: 10.2147/CMAR.S250394.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Lee H, Park CS, Deftereos G, Morihara J, Stern JE, Hawes SE, Swisher E, Kiviat NB, Feng Q. MicroRNA expression in ovarian carcinoma and its correlation with clinicopathological features. World J Surg Oncol. 2012;10:174. doi: 10.1186/1477-7819-10-174.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Ferreira P, Roela RA, Lopez RVM, Del Pilar Estevez-Diz M. The prognostic role of microRNA in epithelial ovarian cancer: a systematic review of literature with an overall survival meta-analysis. Oncotarget. 2020;11(12):1085–1095. doi: 10.18632/oncotarget.27246.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Prahm KP, Høgdall CK, Karlsen MA, Christensen IJ, Novotny GW, Høgdall E. MicroRNA characteristics in epithelial ovarian cancer. PLoS One. 2021;16(6):e0252401. doi: 10.1371/journal.pone.0252401.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Chen S, Chen X, Xiu YL, Sun KX, Zhao Y. Inhibition of Ovarian Epithelial Carcinoma Tumorigenesis and Progression by microRNA 106b Mediated through the RhoC Pathway. PLoS One. 2015;10(5):e0125714. doi: 10.1371/journal.pone.0125714.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Kim S, Choi MC, Jeong JY, Hwang S, Jung SG, Joo WD, Park H, Song SH, Lee C, Kim TH, An HJ. Serum exosomal miRNA-145 and miRNA-200c as promising biomarkers for preoperative diagnosis of ovarian carcinomas. J Cancer. 2019;10(9):1958–1967. doi: 10.7150/jca.30231.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Piletič K, Kunej T. MicroRNA epigenetic signatures in human disease. Arch Toxicol. 2016;90(10):2405–2419. doi: 10.1007/s00204-016-1815-7.</mixed-citation></ref><ref id="B11"><label>11.</label><citation-alternatives><mixed-citation xml:lang="en">Braga EA, Loginov VI, Filippova EA, Burdennyi AM, Pronina IV, Kazubskaya TP, Khodyrev DS, Utkin DO, Kushlinskii DN, Adamyan LV, Kushlinskii NE. Diagnostic Value of a Group of MicroRNA Genes Hypermethylated in Ovarian Carcinoma. Bull Exp Biol Med. 2018;166(2):253–256. doi: 10.1007/s10517-018-4326-0.</mixed-citation><mixed-citation xml:lang="ru">Брага ЭА, Логинов ВИ, Филиппова ЕА, Бурдённый АМ, Пронина ИВ, Казубская ТП, Ходырев ДС, Уткин ДО, Кушлинский ДН, Адамян ЛВ, Кушлинский НЕ. Диагностическое значение группы генов микроРНК, гиперметилированных в карциноме яичников. Бюллетень экспериментальной биологии и медицины. 2018;166(8):213–217.</mixed-citation></citation-alternatives></ref><ref id="B12"><label>12.</label><mixed-citation>Loginov VI, Pronina IV, Burdennyy AM, Filippova EA, Kazubskaya TP, Kushlinsky DN, Utkin DO, Khodyrev DS, Kushlinskii NE, Dmitriev AA, Braga EA. Novel miRNA genes deregulated by aberrant methylation in ovarian carcinoma are involved in metastasis. Gene. 2018;662:28–36. doi: 10.1016/j.gene.2018.04.005.</mixed-citation></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Filippova EA, Loginov VI, Burdennyi AM, Braga EA, Pronina IV, Kazubskaya TP, Kushlinskii DN, Utkin DO, Fridman MV, Khodyrev DS, Kushlinskii NE. Hypermethylated Genes of MicroRNA in Ovarian Carcinoma: Metastasis Prediction Marker Systems. Bull Exp Biol Med. 2019;167(1):79–83. doi: 10.1007/s10517-019-04465-5.</mixed-citation><mixed-citation xml:lang="ru">Филиппова ЕА, Логинов ВИ, Бурденный АМ, Пронина ИВ, Казубская ТП, Кушлинский ДН, Уткин ДО, Фридман МВ, Ходырев ДС, Кушлинский НЕ, Брага ЭА. Гиперметилированные гены микроРНК в карциноме яичников: системы маркеров прогноза метастазирования. Бюллетень экспериментальной биологии и медицины. 2019;167(1):86–90.</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><mixed-citation>Brierley JD, Gospodarowicz MK, Wittekind C, editors. TNM Classification of Malignant Tumours. 8th ed. John Wiley &amp; Sons; 2017. 241 p.</mixed-citation></ref><ref id="B15"><label>15.</label><citation-alternatives><mixed-citation xml:lang="en">Filippova EA, Burdennyy AM, Lukina SS, Ivanova NA, Pronina IV, Kazubskaya TP, Braga EA, Loginov VI. Changes in the methylation level of microRNA genes as a factor of breast cancer development and progression. Pathological Physiology and Experimental Therapy. 2021;65(3):4–11. Russian. doi: 10.25557/0031-2991.2021.03.4-11.</mixed-citation><mixed-citation xml:lang="ru">Филиппова ЕА, Бурденный АМ, Лукина СС, Иванова НА, Пронина ИВ, Казубская ТП, Брага ЭА, Логинов ВИ. Изменение уровня метилирования группы генов микроРНК как фактора развития и прогрессии рака молочной железы. Патологическая физиология и экспериментальная терапия. 2021;65(3):4–11. doi: 10.25557/0031-2991.2021.03.4-11.</mixed-citation></citation-alternatives></ref><ref id="B16"><label>16.</label><mixed-citation>Hattermann K, Mehdorn HM, Mentlein R, Schultka S, Held-Feindt J. A methylation-specific and SYBR-green-based quantitative polymerase chain reaction technique for O6-methylguanine DNA methyltransferase promoter methylation analysis. Anal Biochem. 2008;377(1):62–71. doi: 10.1016/j.ab.2008.03.014.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Loginov VI, Dmitriev AA, Senchenko VN, Pronina IV, Khodyrev DS, Kudryavtseva AV, Krasnov GS, Gerashchenko GV, Chashchina LI, Kazubskaya TP, Kondratieva TT, Lerman MI, Angeloni D, Braga EA, Kashuba VI. Tumor Suppressor Function of the SEMA3B Gene in Human Lung and Renal Cancers. PLoS One. 2015;10(5):e0123369. doi: 10.1371/journal.pone.0123369.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Panagopoulou M, Karaglani M, Balgkouranidou I, Biziota E, Koukaki T, Karamitrousis E, Nena E, Tsamardinos I, Kolios G, Lianidou E, Kakolyris S, Chatzaki E. Circulating cell-free DNA in breast cancer: size profiling, levels, and methylation patterns lead to prognostic and predictive classifiers. Oncogene. 2019;38(18):3387–3401. doi: 10.1038/s41388-018-0660-y.</mixed-citation></ref><ref id="B19"><label>19.</label><citation-alternatives><mixed-citation xml:lang="en">Loginov VI, Burdennyy AM, Pronina IV, Khokonova VV, Kurevljov SV, Kazubskaya TP, Kushlinskii NE, Braga EA. Novel miRNA genes hypermethylated in breast cancer. Molecular Biology. 2016;50(5):705–709.</mixed-citation><mixed-citation xml:lang="ru">Логинов ВИ, Бурденный АМ, Пронина ИВ, Хоконова ВВ, Куревлев СВ, Казубская ТП, Кушлинский НЕ, Брага ЭА. Новые гены микроРНК, гиперметилированные при раке молочной железы. Молекулярная биология. 2016;50(5):797–802. doi: 10.7868/S0026898416050104.</mixed-citation></citation-alternatives></ref><ref id="B20"><label>20.</label><mixed-citation>Tam KF, Liu VWS, Liu SS, Tsang PCK, Cheung ANY, Yip AMW, Ngan HYS. Methylation profile in benign, borderline and malignant ovarian tumors. J Cancer Res Clin Oncol. 2007;133(5):331–341. doi: 10.1007/s00432-006-0178-5.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Singh A, Gupta S, Sachan M. Epigenetic Biomarkers in the Management of Ovarian Cancer: Current Prospectives. Front Cell Dev Biol. 2019;7:182. doi: 10.3389/fcell.2019.00182.</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Koukoura O, Spandidos DA, Daponte A, Sifakis S. DNA methylation profiles in ovarian cancer: implication in diagnosis and therapy (Review). Mol Med Rep. 2014;10(1):3–9. doi: 10.3892/mmr.2014.2221.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Loginov VI, Pronina IV, Filippova EA, Burdennyy AM, Lukina SS, Kazubskaya TP, Uroshlev LA, Fridman MV, Brovkina OI, Apanovich NV, Karpukhin AV, Stilidi IS, Kushlinskii NE, Dmitriev AA, Braga EA. Aberrant Methylation of 20 miRNA Genes Specifically Involved in Various Steps of Ovarian Carcinoma Spread: From Primary Tumors to Peritoneal Macroscopic Metastases. Int J Mol Sci. 2022;23(3):1300. doi: 10.3390/ijms23031300.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Davidson B, Tropé CG, Reich R. Epithelial-mesenchymal transition in ovarian carcinoma. Front Oncol. 2012;2:33. doi: 10.3389/fonc.2012.00033.</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Klymenko Y, Kim O, Stack MS. Complex Determinants of Epithelial: Mesenchymal Phenotypic Plasticity in Ovarian Cancer. Cancers. 2017;9(8):104. doi: 10.3390/cancers9080104.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Tam WL, Weinberg RA. The epigenetics of epithelial-mesenchymal plasticity in cancer. Nat Med. 2013;19(11):1438–1449. doi: 10.1038/nm.3336.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Skrypek N, Goossens S, De Smedt E, Vandamme N, Berx G. Epithelial-to-Mesenchymal Transition: Epigenetic Reprogramming Driving Cellular Plasticity. Trends Genet. 2017;33(12):943–959. doi: 10.1016/j.tig.2017.08.004.</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Nguyen VHL, Yue C, Du KY, Salem M, O'Brien J, Peng C. The Role of microRNAs in Epithelial Ovarian Cancer Metastasis. Int J Mol Sci. 2020;21(19):7093. doi: 10.3390/ijms21197093.</mixed-citation></ref><ref id="B29"><label>29.</label><citation-alternatives><mixed-citation xml:lang="en">Burdennyy AM, Filippova EA, Ivanova NA, Lukina SS, Pronina IV, Loginov VI, Fridman MV, Kazubskaya TP, Utkin DO, Braga EA, Kushlinskii NE. Hypermethylation of Genes in New Long Noncoding RNA in Ovarian Tumors and Metastases: A Dual Effect. Bull Exp Biol Med. 2021;171(3):370–374. doi: 10.1007/s10517-021-05230-3.</mixed-citation><mixed-citation xml:lang="ru">Бурдённый АМ, Филиппова ЕА, Иванова НА, Лукина СС, Пронина ИВ, Логинов ВИ, Фридман МВ, Казубская ТП, Уткин ДО, Брага ЭА, Кушлинский НЕ. Гиперметилирование генов новых длинных некодирующих РНК в опухолях яичников и метастазах: двойственный эффект. Бюллетень экспериментальной биологии и медицины. 2021;171(3):353–358. doi: 10.47056/0365-9615-2021-171-3-353-358.</mixed-citation></citation-alternatives></ref></ref-list></back></article>
