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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">10.20538/1682-0363-2020-3-22-28</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-2973</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>Аберрации числа копий в геноме опухоли молочной железы люминального подтипа B</article-title><trans-title-group xml:lang="en"><trans-title>Aberrations of the number of copies (CNA) in the genome of luminal B breast tumor</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8815-2786</contrib-id><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>Россия, 634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>5, Kooperativny Str., 634009, Tomsk, Russian Federation</p></bio><email xlink:type="simple">imk1805@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7419-4512</contrib-id><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, ст. науч. сотрудник, лаборатория онковирусологии </p><p>Россия, 634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>5, Kooperativny Str., 634009, Tomsk, Russian Federation</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4382-5697</contrib-id><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, профессор, кафедра онкологии</p><p>Россия, 199034, г. Санкт-Петербург, Университетская набережная, 7/9 </p></bio><bio xml:lang="en"><p>7/9, University Emb., 199034, Saint-Petersburg, Russian Federation</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0714-8927</contrib-id><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>Россия, 634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>5, Kooperativny Str., 634009, Tomsk, Russian Federation</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт (НИИ) онкологии, Томский национальный исследовательский медицинский центр (НИМЦ) Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Саnсеr Rеsеаrсh Institute, Tomsk National Research Medical Center of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет (СПбГУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2020</year></pub-date><volume>19</volume><issue>3</issue><fpage>22</fpage><lpage>28</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ибрагимова М.К., Цыганов М.М., Слонимская Е.М., Литвяков Н.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ибрагимова М.К., Цыганов М.М., Слонимская Е.М., Литвяков Н.В.</copyright-holder><copyright-holder xml:lang="en">Ibragimova M.K., Tsyganov M.M., 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/2973">https://bulletin.ssmu.ru/jour/article/view/2973</self-uri><abstract><sec><title>Цель</title><p>Цель. Описание ландшафта Copy Number Aberration (CNA) опухоли молочной железы люминального подтипа B до лечения.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование включены 100 больных раком молочной железы (РМЖ) люминального подтипа B, для которых проведен забор биопсийного материала опухоли до проведения неоадъювантной химиотерапии (НХТ). ДНК из опухоли исследована при помощи микроматрицы CytoScan HD Array (Affymetrix, США). Полученные микроматричные данные соотнесены с эффективностью НХТ. </p></sec><sec><title>Результаты</title><p>Результаты. Показано, что наибольшая частота амплификаций (более чем у 65% больных) наблюдается в следующих локусах: 1q32.1-32.3, 1q41-42.2, 8q24.21. Наибольшая частота делеций (более чем у 60% больных) была обнаружена в локусах 16q21, 16q22.1, 16q23.1-24.1, 17p13.1, 17p12. Трисомия чаще всего наблюдалась в 7-, 8-, 12- и 17-й хромосомах, моносомия – в 3-, 4-, 9-, 11-, 18-й и Х-хромосомах. Ландшафт CNA опухоли молочной железы люминального подтипа В отличается от трижды негативного РМЖ. Наибольшая разница частоты встречаемости амплификаций между больными с объективным ответом на НХТ и больными с отсутствием ответа на НХТ показана в 1q24.2-42.2 локусах (46%), а наибольшая разница частоты встречаемости делеций (более 30%) – между группами в регионах 6q16.3, 11p15.4, 11q23.1, 16q22.2-22.3. Данные локусы могут быть рассмотрены в качестве потенциальных предиктивных  маркеров.</p></sec><sec><title>Заключение</title><p>Заключение. Установлены локусы с наибольшей частотой амплификаций и делеций для рака молочной железы люминального подтипа В. Идентифицированы потенциальные предиктивные маркеры для данного молекулярного подтипа.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To describe the CNA (Copy Number Aberration) landscape of luminal B breast tumor before treatment.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study included 100 patients with breast cancer (BC) of luminal B subtype for which a biopsy of the tumor material was performed prior to neoadjuvant chemotherapy (NAC). The tumor DNA was examined using a CytoScan HD Array microarray (Affymetrix, USA). The obtained microarray data were correlated with NAC efficacy.</p></sec><sec><title>Results</title><p>Results. The study showed that loci 1q32.1-32.3, 1q41-42.2, and 8q24.21 had the highest frequency of  amplifications (in more than 65% of patients). The highest deletion frequency (in more than 60% of patients) was found in loci 16q21, 16q22.1, 16q23.1-24.1, 17p13.1, and 17p12. Trisomy was most often observed in chromosomes 7, 8, 12, and 17, and monosomy in chromosomes 3, 4, 9, 11, 18, and X-chromosomes. The CNA landscape of luminal B subtype breast tumors is different from triple-negative breast cancer. The largest difference in the frequency of amplifications between patients with an objective response to NAC and patients with no response to NAC was shown in 1q24.2-42.2 loci (46%), and the largest difference in the frequency of deletions (more than 30%) between groups was in regions 6q16. 3, 11p15.4, 11q23.1, and 16q22.2-22.3. These loci can be considered potential predictive markers.</p></sec><sec><title>Conclusion</title><p>Conclusion. The research determined loci with the highest amplification and deletion frequencies for luminal B breast cancer. Potential predictive markers for the given molecular subtype were identified. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>микроматричный анализ</kwd><kwd>делеции</kwd><kwd>амплификации</kwd><kwd>неоадъювантная химиотерапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>microarray analysis</kwd><kwd>deletions</kwd><kwd>amplifications</kwd><kwd>neoadjuvant chemotherapy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Российского научного фонда, проект № 17-15-01203</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">Garraway L.A., Lander E.S. Lessons from the cancer genome. Cell. 2013; 153 (1): 17–37. DOI: 10.1016/j.cell.2013.03.002.</mixed-citation><mixed-citation xml:lang="en">Garraway L.A., Lander E.S. 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