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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">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2025-24-6-48-58</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-3950</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>ЛАБОРАТОРНЫЕ И ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LABORATORY AND EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Экспрессия генов эксцизионной репарации в опухоли молочной железы при проведении неоадъювантной химиотерапии</article-title><trans-title-group xml:lang="en"><trans-title>Expression of excision repair genes in breast tumors during neoadjuvant chemotherapy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-3832-6440</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шагабудинова</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Shagabudinova</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шагабудинова Арина Константиновна - лаборант-исследователь лаборатории онковирусологии.</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Arina K. Shagabudinova - Research Assistant, Laboratory of Oncovirology, Cancer Research Institute.</p><p>5, Kooperativny St., Tomsk, 634009</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/0000-0001-8815-2786</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>Ибрагимова Марина Константиновна - кандидат биологических наук, старший научный сотрудник лаборатории онковирусологии.</p><p>SPIN-код: 2340-1628.</p><p>Researcher ID (WOS): C-8609-2012.</p><p>Author ID (Scopus): 57130579200.</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Marina K. Ibragimova - PhD, Senior Researcher, Laboratory of Oncovirology.</p><p>Researcher ID (WOS): C-8609-2012.</p><p>Author ID (Scopus): 57130579200.</p><p>5, Kooperativny St., Tomsk, 634009</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/0000-0001-7419-4512</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>Цыганов Матвей Михайлович - кандидат биологических наук, старший научный сотрудник лаборатории онковирусологии.</p><p>SPIN-код: 1253-0240.</p><p>Researcher ID (WOS): A-7212-2014.</p><p>Author ID (Scopus): 55366377400.</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Matvey M. Tsyganov - PhD, Senior Researcher, Laboratory of Oncovirology.</p><p>Researcher ID (WOS): A-7212-2014.</p><p>Author ID (Scopus): 55366377400.</p><p>5, Kooperativny St., Tomsk, 634009</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/0000-0002-6016-7078</contrib-id><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>Гарбуков Евгений Юрьевич - кандидат медицинских наук, старший научный сотрудник отделения общей онкологии.</p><p>SPIN-код: 3630-2324.</p><p>Researcher ID (WOS): C-8299-2012.</p><p>Author ID (Scopus): 6504255124.</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Evgenii Yu. Garbukov - MD, PhD, Senior Researcher, Department of General Oncology.</p><p>Researcher ID (WOS): C-8299-2012.</p><p>Author ID (Scopus): 6504255124.</p><p>5, Kooperativny St., Tomsk, 634009</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/0000-0002-0714-8927</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>Литвяков Николай Васильевич - доктор биологических наук, профессор РАН, заведующий лабораторией онковирусологии.</p><p>SPIN-код: 2546-0181.</p><p>Researcher ID (WOS): C-3263-2012.</p><p>Author ID (Scopus): 6506850698.</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Nikolay V. Litviakov - DSc, Professor of the Russian Academy of Sciences, Head of the Laboratory of Oncovirology.</p><p>Researcher ID (WOS): C-3263-2012.</p><p>Author ID (Scopus): 6506850698.</p><p>5, Kooperativny St., Tomsk, 634009</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 онкологии, Томский национальный исследовательский медицинский центр Российской академии наук Россия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>01</month><year>2026</year></pub-date><volume>24</volume><issue>6</issue><fpage>48</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шагабудинова А.К., Ибрагимова М.К., Цыганов М.М., Гарбуков Е.Ю., Литвяков Н.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Шагабудинова А.К., Ибрагимова М.К., Цыганов М.М., Гарбуков Е.Ю., Литвяков Н.В.</copyright-holder><copyright-holder xml:lang="en">Shagabudinova A.K., Ibragimova M.K., Tsyganov M.M., Garbukov E.Y., 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://www.siboncoj.ru/jour/article/view/3950">https://www.siboncoj.ru/jour/article/view/3950</self-uri><abstract><p>Основные противоопухолевые препараты (в частности, антрациклины и таксаны), применяемые при неоадъювантной терапии рака молочной железы (РМЖ), способны приводить к возникновению повреждений ДНК опухолевых клеток. В свою очередь, активация систем эксцизионной репарации в этих клетках может снижать эффективность лечения, способствуя восстановлению повреждений и развитию резистентности. В этой связи изучение уровня экспрессии генов эксцизионной репарации является перспективным направлением для выявления потенциальных предиктивных маркеров эффективности лечения и потенциальных прогностических маркеров гематогенного метастазирования.</p><p>Цель исследования – оценка уровня экспрессии генов эксцизионной репарации (ГЭР) в опухоли молочной железы люминального В HER2-негативного подтипа в процессе лечения при применении стандартных схем неоадъювантной химиотерапии.</p><sec><title>Материал и методы</title><p>Материал и методы. Использованы парные образцы биопсийного материала до лечения и опухолевой ткани после неоадъювантной химиотерапии (НХТ) для каждой пациентки. Экспрессионный ландшафт опухоли оценивался при помощи полнотранcкриптомного микроматричного анализа с использованием микрочипов Clariom™ S Assay, human (Affymetrix, USA).</p></sec><sec><title>Результаты</title><p>Результаты. При оценке изменения уровня экспрессии ГЭР в опухоли молочной железы до лечения антрациклин-содержащими схемами в зависимости от ответа на НХТ наблюдалось значимое изменение уровня экспрессии 3 генов (DDB1, FAN1, GTF2H3); до лечения таксан-содержащими схемами – 5 генов (CDK2AP2, MMS19, DDB1, CCNL2; TDG). При оценке изменения уровня экспрессии генов эксцизионной репарации в опухоли молочной железы после лечения антрациклин-содержащими схемами НХТ в зависимости от статуса гематогенного метастазирования наблюдалось значимое изменение уровня экспрессии 5 генов (RFC1, RAD23B, CCNH, POLB, RPA4); после лечения таксан-содержащими схемами – 7 генов (PARP1, NTHL1, ERCC8, XAB2, DUT, CCNL2, MNAT1). Анализ БМВ пациенток позволил выявить значимые изменения уровня экспрессии генов NTHL1, XAB2 и DUT в опухоли при применении таксан-содержащих схем НХТ.</p></sec><sec><title>Заключение</title><p>Заключение. Идентифицированы потенциальные экспрессионные маркеры прогнозирования гематогенного метастазирования опухоли молочной железы HER2-негативного подтипа при назначении таксан-содержащих схем НХТ.</p></sec></abstract><trans-abstract xml:lang="en"><p>The main anticancer drugs (particularly anthracyclines and taxanes) widely used in neoadjuvant breast cancer therapy can cause DNA damage in tumor cells. Activation of excision repair systems in these cells can reduce treatment effectiveness, promoting damage repair and the development of resistance. Therefore, studying the expression level of excision repair genes is a promising approach for identifying potential predictive markers of treatment efficacy and potential prognostic markers of hematogenous metastasis. This study assessed changes in the expression level of excision repair genes in luminal B HER2-subtype breast tumors during treatment with standard neoadjuvant chemotherapy regimens.</p><sec><title>Material and Methods</title><p>Material and Methods. Paired biopsy samples (pre-treatment and post-NAC tumor tissue) from each patient were used. The tumor expression landscape was assessed using full-transcriptome microarray analysis with Clariom™ S Assay, human microarrays (Affymetrix, USA).</p></sec><sec><title>Results</title><p>Results. A study assessing the excision repair gene expression in breast tumors before therapy with anthracycline-containing regimens found that the expression levels of 3 genes (DDB1, FAN1, GTF2H3) changed significantly depending on how the patients responded to neoadjuvant chemotherapy. Before treatment with taxane-containing regimens, 5 genes CDK2AP2, MMS19, DDB1, CCNL2, TDG showed significant changes. The assessment of the excision repair gene expression in breast tumors after therapy with anthracycline-containing regimens found that the expression levels of 5 genes (RFC1, RAD23B, CCNH, POLB, RPA4) changed significantly depending on hematogenous metastasis status. After therapy with taxane-containing regimens, 7 genes (PARP1, NTHL1, ERCC8, XAB2, DUT, CCNL2, MNAT1) showed significant changes. Analysis of metastasis-free survival of patients revealed statistically significant changes in the expression levels of NTHL1, XAB2 and DUT genes in the tumor after taxane-containing treatment.</p></sec><sec><title>Conclusion</title><p>Conclusion. Potential gene expression markers for predicting hematogenous metastasis of HER2-negative breast tumors treated with taxane-containing NAC regimens were identified.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>неоадъювантная химиотерапия</kwd><kwd>полнотранcкриптомный анализ</kwd><kwd>экспрессионный профиль опухоли</kwd><kwd>гематогенное метастазирование</kwd><kwd>прогноз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>neoadjuvant chemotherapy</kwd><kwd>full transcriptome analysis</kwd><kwd>tumor expression profile</kwd><kwd>hematogenous metastasis</kwd><kwd>prognosis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 25-25-20045 (https:// rscf.ru/project/25-25-20045/) и гранта в форме субсидии, выделяемого Департаментом по научнотехнологическому развитию и инновационной деятельности Томской области (Соглашение № 02/1/2025)</funding-statement><funding-statement xml:lang="en">This work was supported by the Russian Science Foundation grant No. 25-25-20045 (https://rscf.ru/ project/25-25-20045/) and by a grant (subsidy) from the Department for Research, Technological Development and Innovation of the Tomsk Region (Agreement No. 02/1/2025)</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">Тюляндин С.А., Артамонова Е.В., Жигулев А.Н., Жукова Л.Г., Королева И.А., Пароконная А.А., Семиглазова Т.Ю., Стенина М.Б., Фролова М.А. 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