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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2017-4-250-259</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-1042</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Явление потери гетерозиготности в опухолевой ткани молочной железы: связь с экспрессией генов монорезистентности</article-title><trans-title-group xml:lang="en"><trans-title>Phenomenon of loss of heterozygosity in tumour tissue of breast cancer: association with expression of monoresistance genes</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>Цыганов</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsyganov</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, мл. науч. сотрудник, лаборатория онковирусологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>PhD, Junior Researcher, Laboratory of Oncovirology</p><p>5, Kooperativny Str., Tomsk, 634050</p></bio><email xlink:type="simple">TsyganovMM@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>Дерюшева</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Deryusheva</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник, лаборатория онковирусологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Junior Researcher, Laboratory of Oncovirology</p><p>5, Kooperativny Str., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гарбуков</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Garbukov</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, врач, ст. науч. сотрудник, отделение общей онкологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>PhD, Doctor, Senior Researcher, Department of General Oncology</p><p>5, Kooperativny Str., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимова</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibragimova</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник, лаборатория онковирусологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p><p>634050, г. Томск, пр. Ленина, 36 </p></bio><bio xml:lang="en"><p>Junior Researcher, Laboratory of Oncovirology</p><p>5, Kooperativny Str., Tomsk, 634050</p><p>36, Lenina Av., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казанцева</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazantseva</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотрудник, отделение общей онкологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Junior Researcher, Department of General Oncology</p><p>5, Kooperativny Str., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бычков</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bychkov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, ст. науч. сотрудник, лаборатория онковирусологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>PhD, Senior Researcher, Laboratory of Oncovirology</p><p>5, Kooperativny Str., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слонимская</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Slonimskaya</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, врач, профессор, зав. отделением общей онкологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p><p>профессор кафедры онкологии</p><p>634050, г. Томск, Московский тракт, 2 </p></bio><bio xml:lang="en"><p>DM, Professor, Head of the Department of General Oncology</p><p>5, Kooperativny Str., Tomsk, 634050</p><p>2, Moskow Trakt, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Литвяков</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Litviakov</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р биол. наук, зав. лабораторией онковирусологии</p><p>634050, г. Томск, пер. Кооперативный, 5</p><p>634050, г. Томск, пр. Ленина, 36 </p></bio><bio xml:lang="en"><p>DBSc, Head of the Laboratory Oncovirology</p><p>5, Kooperativny Str., Tomsk, 634050</p><p>36, Lenina Av., Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) онкологии, Томский национальный исследовательский медицинский центр (ТНИМЦ) Российской академии наук (РАН)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center (TNRMC) of Russian Academy of Sciences (RAS)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) онкологии, Томский национальный исследовательский медицинский центр (ТНИМЦ) Российской академии наук (РАН); Национальный исследовательский Томский государственный университет (НИ ТГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center (TNRMC) of Russian Academy of Sciences (RAS); National Research Tomsk State University (NR TSU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) онкологии, Томский национальный исследовательский медицинский центр (ТНИМЦ) Российской академии наук (РАН); Сибирский государственный медицинский университет (СибГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center (TNRMC) of Russian Academy of Sciences (RAS); Siberian State Medical University (SSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>02</day><month>01</month><year>2018</year></pub-date><volume>16</volume><issue>4</issue><fpage>250</fpage><lpage>259</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Цыганов М.М., Дерюшева И.В., Гарбуков Е.Ю., Ибрагимова М.К., Казанцева П.В., Бычков В.А., Слонимская Е.М., Литвяков Н.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Цыганов М.М., Дерюшева И.В., Гарбуков Е.Ю., Ибрагимова М.К., Казанцева П.В., Бычков В.А., Слонимская Е.М., Литвяков Н.В.</copyright-holder><copyright-holder xml:lang="en">Tsyganov M.M., Deryusheva I.V., Garbukov E.Y., Ibragimova M.K., Kazantseva P.V., Bychkov V.A., Slonimskaya E.M., Litviakov N.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://bulletin.ssmu.ru/jour/article/view/1042">https://bulletin.ssmu.ru/jour/article/view/1042</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Широкогеномное исследование связи потери гетерозиготности (loss of heterozygote, LOH) в опухоли молочной железы с экспрессией генов монорезистентности при проведении неоадъювантной химиотерапии (НХТ).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 68 больных раком молочной железы РМЖ IIA–IIIB стадий. РНК выделяли из опухолевого материала до и после лечения с помощью набора RNeasy mini kit Plus. Уровень экспрессии исследуемых генов (RRM1, ERCC1, TOP1, TOP2a, TUBB3, TYMS, BRCA1) оценивали при помощи RT-qPCR. ДНК выделяли из 68 биопсийных образцов опухолевой ткани с помощью набора QIAamp DNA mini Kit (Qiagen, Германия). Для оценки статуса LOH проведен микроматричный анализ на ДНК-чипах высокой плотности фирмы Affymetrix CytoScanTM HD Array.</p></sec><sec><title>Результаты</title><p>Результаты. В исследовании потеря гетерозиготности оценена у 13 815 генов. Частота LOH составила 0–63%. Наибольшая частота встречаемости явления потери гетерозиготности характерна для генов хромосом 16, 17 и Х-хромосомы. Установлено, что наличие явления LOH в генах монорезистентности (BRCA1, ERCC1, RRM1, TOP1, TOP2A, TUBB3 и TYMS) не сопряжено с их уровнем экспрессии в опухоли. Отмечено 54 гена, LOH в которых статистически значимо ассоциирована с уровнем экспрессии исследуемых генов. Среди них следует отметить гены, кодирующие miRNA и «цинковые пальцы», участвующие в регуляции транскрипции многих генов, трансмембранные транспортеры лекарственных препаратов и ионные каналы, гены MAP-киназного сигнального пути и др.</p></sec><sec><title>Заключение</title><p>Заключение. Результаты, полученные в данном исследовании, могут более точно определить экспрессионный портрет в опухоли генов монорезистентности, указать на новые кандидатные гены, участвующие в регуляции экспрессии этих генов. Оценка потери гетерозиготности в опухолевой ткани может быть использована в качестве дополнительного критерия для персонализации назначения химиотерапии. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of work</title><p>Purpose of work. To perform a genome-wide association study of loss of heterozygosity (LOH) with monoresistance genes expression during neoadjuvant chemotherapy (NAC) in breast cancer.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study involved 68 patients with breast cancer. The tumour stages were IIAIIIB. RNA was extracted from tissue specimens (before and after NAC) using RNeasy Plus mini Kit (Qiagen, Germany). Expression profiling of the RRM1, ERCC1, TOP1, TOP2a, TUBB3, TYMS, BRCA1 genes was carried out using quantitative real-time PCR (qPCR). DNA was extracted from 68 biopsy specimens of tumour tissues using QIAamp DNA mini Kit (Qiagen, Germany). LOH status was detected using microarray analysis using high density DNA-chip manufactured by Affymetrix CytoScanTM HD Array company.</p></sec><sec><title>Results</title><p>Results. As a result of the study of loss of heterozygosity was evaluated in 13815 genes. The frequency of LOH varied from 0% to 63%. The highest incidence of heterozygosity loss events is characteristic for genes of 16, 17 and the X-chromosome. Our study established that the phenomenon of loss of heterozygosity in monoresistance genes (BRCA1, ERCC1, RRM1, TOP1, TOP2A, TUBB3 and TYMS), is not associated with their level of expression in the tumor. A statistical association has been found between LOH and level of expression of the studied genes in 54 genes. Among them it is necessary to note genes encoding miRNA and «zinc fingers» involved in the regulation of transcription of many genes, transmembrane drug transporters and ion channels, genes of the MAP kinase signaling pathway, and others.</p></sec><sec><title>Conclusion</title><p>Conclusion. The results of this study allow for the more exact determination of the expression picture of monoresistance genes in the tumor and the indication of new candidate genes which are involved in the regulation of the expression of these genes. Evaluation of the loss of heterozygosity in tumor tissue can be used as an additional criterion for personalizing chemotherapy. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>потеря гетерозиготности</kwd><kwd>рак молочной железы</kwd><kwd>гены монорезистентности</kwd><kwd>микроматричные исследования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>loss of heterozigosity</kwd><kwd>breast cancer</kwd><kwd>monoresistance genes</kwd><kwd>microarray analysis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом РНФ № 17-15- 01203 «Метастатические клоны опухоли молоч- ной железы».</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">Tamura G. 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