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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Advances in Molecular Oncology</journal-id><journal-title-group><journal-title xml:lang="en">Advances in Molecular Oncology</journal-title><trans-title-group xml:lang="ru"><trans-title>Успехи молекулярной онкологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-805X</issn><issn publication-format="electronic">2413-3787</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">329</article-id><article-id pub-id-type="doi">10.17650/2313-805X-2021-8-1-26-31</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Studying of the effect of the genetic variant c.470T&gt;C in the CHEK2 gene on increasing the risk of breast cancer in the population of the Russian Federation</article-title><trans-title-group xml:lang="ru"><trans-title>Исследование влияния генетического варианта c.470T&gt;C в гене CHEK2 на повышение риска развития рака молочной железы у населения Российской Федерации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4437-3661</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikova</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Новикова</surname><given-names>Е. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Profsoyuznaya St., Moscow 117997</p></bio><bio xml:lang="ru"><p><bold>Екатерина Ивановна Новикова</bold> </p><p>117997 Москва, ул. Профсоюзная, 86</p></bio><email>e.novikova.rncrr@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8351-8152</contrib-id><name-alternatives><name xml:lang="en"><surname>Bozhenko</surname><given-names>V. K.</given-names></name><name xml:lang="ru"><surname>Боженко</surname><given-names>В. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Profsoyuznaya St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997 Москва, ул. Профсоюзная, 86</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5530-0591</contrib-id><name-alternatives><name xml:lang="en"><surname>Kudinova</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Кудинова</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Profsoyuznaya St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997 Москва, ул. Профсоюзная, 86</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1641-6452</contrib-id><name-alternatives><name xml:lang="en"><surname>Solodkiy</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Солодкий</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Profsoyuznaya St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997 Москва, ул. Профсоюзная, 86</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian Scientific Center of Roentgenoradiology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Российский научный центр рентгенорадиологии» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2021</year></pub-date><volume>8</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>26</fpage><lpage>31</lpage><history><date date-type="received" iso-8601-date="2021-05-08"><day>08</day><month>05</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-05-08"><day>08</day><month>05</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Novikova E.I., Bozhenko V.K., Kudinova E.A., Solodkiy V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Новикова Е.И., Боженко В.К., Кудинова Е.А., Солодкий В.А.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Novikova E.I., Bozhenko V.K., Kudinova E.A., Solodkiy V.A.</copyright-holder><copyright-holder xml:lang="ru">Новикова Е.И., Боженко В.К., Кудинова Е.А., Солодкий В.А.</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://umo.abvpress.ru/jour/article/view/329">https://umo.abvpress.ru/jour/article/view/329</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Currently, there are conflicting data regarding the effect of the c.470T&gt; C germline mutation in the CHEK2 gene on increasing the risk of breast cancer (BC), so it is necessary to conduct research on large samples of patients, including in the Russian population, in order to analyze the contribution of this mutation to the risk of cancer developing.</p><p><bold>The aim</bold> <bold>of the study</bold> was to determine the frequency of occurrence of the genetic variant c.470Т&gt;С in the CHEK2 gene in the Russian population in patients with BC and patients with benign breast diseases (BBD) to assess the possible effect of this deoxyribonucleic acid damage on the likelihood of cancer occurrence.</p><p><bold>Materials and methods.</bold> The study included 2,787 patients with BC and 1,004 patients with BBD who underwent examination and treatment at the Russian Scientific Center of Roentgenoradiology of the Ministry of the Russian Federation from 2010 to 2018. Molecular genetic study was carried out by real-time polymerase chain reaction to determine the characteristic of the Russian population hereditary genetic variant c.470Т&gt;С in the CHEK2 gene using a diagnostic panel that allows to determine three germline mutations: c.1100delC, c.444+1G&gt;A and c.470Т&gt;С in the CHEK2 gene.</p><p><bold>Results.</bold> In patients with BC the frequency of the mutation c.470T&gt;C in the CHEK2 gene was 3.8 %, in patients with BBD this mutation was detected in 4.7 % of cases. The frequency of the genetic variant c.470T&gt;C in high-risk groups was: 5.1 % – for BC patients with clinical signs of hereditary disease and 4.9 % – for patients with BBD with a family history of cancer. There were no statistically significant differences between the frequency of the mutation c.470T&gt;C in the general groups of BC patients and patients with BBD and the corresponding frequency in the high-risk groups, as well as in the groups of BC patients and patients with BBD (p &gt;0.05).</p><p><bold>Conclusion</bold>. The results of this study indicate the probable absence of a relationship between the presence of the mutation c.470Т&gt;С in the CHEK2 gene and an increased risk of BC.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> В настоящее время имеются противоречивые данные относительно влияния герминальной мутации с.470Т&gt;С в гене CHEK2 на повышение риска возникновения рака молочной железы (РМЖ), поэтому необходимы исследования на больших выборках больных, в том числе в российской популяции, в целях анализа вклада данной мутации в риск развития онкологического заболевания.</p><p><bold>Цель исследования</bold> – определение частоты встречаемости генетического варианта с.470Т&gt;С в гене CHEK2 в российской популяции у больных РМЖ и пациенток с доброкачественными заболеваниями молочной железы (ДЗМЖ) для  оценки возможного влияния данного повреждения дезоксирибонуклеиновой кислоты на вероятность возникновения онкологического заболевания.</p><p><bold> Материалы и методы</bold>. В исследование были включены 2787 больных РМЖ и 1004 пациентки с ДЗМЖ, проходившие обследование и лечение в ФГБУ «Российский научный центр рентгенорадиологии» Минздрава России с 2010 по 2018 г. Молекулярно-генетическое исследование для определения характерного для российской популяции наследственного генетического варианта с.470Т&gt;С в гене CHEK2 было проведено методом полимеразной цепной реакции в режиме реального времени с использованием диагностической панели, позволяющей определять три герминальные мутации: с.1100delC, c.444+1G&gt;A и с.470Т&gt;С в гене CHEK2.</p><p><bold>Результаты</bold>. У больных с диагнозом РМЖ частота мутации c.470T&gt;C в гене CHEK2 составила 3,8 %, у пациенток с ДЗМЖ данная мутация выявлена в 4,7 % случаев. Частота генетического варианта c.470T&gt;C в группах повышенного риска составила 5,1 % для больных РМЖ с клиническими признаками наследственного заболевания и 4,9 % для  пациенток с  ДЗМЖ, имеющих онкологически отягощенный семейный анамнез. Статистически значимых различий между частотой мутации c.470T&gt;C в общих группах больных РМЖ и пациенток с ДЗМЖ и  соответствующей частотой в  группах повышенного риска, а  также в  группах больных РМЖ и  пациенток с ДЗМЖ не установлено (p &gt;0,05).</p><p><bold>Заключение</bold>. Результаты проведенного исследования свидетельствуют о вероятном отсутствии связи между наличием мутации с.470Т&gt;С в гене CHEK2 и повышением риска развития РМЖ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hereditary breast cancer</kwd><kwd>mutations in the CHEK2 gene</kwd><kwd>genetic variant c.470Т&gt;С</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>наследственный рак молочной железы</kwd><kwd>мутации в гене CHEK2</kwd><kwd>генетический вариант с.470Т&gt;С</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Stracker T.H., Usui T., Petrini J.H. 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