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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2025.08.140-141</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3152</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Всё ли мы знаем о гене KRAS?</article-title><trans-title-group xml:lang="en"><trans-title>Do we know everything about the KRAS gene?</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>Шубин</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Shubin</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виталий Павлович Шубин</p><p>123423; ул. Саляма Адиля, д. 2; Москва</p></bio><bio xml:lang="en"><p>Vitaly P. Shubin</p><p>123423; 2, Salyama Adilya st.; Moscow</p></bio><email xlink:type="simple">shubin_vp@gnck.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>Логинова</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Loginova</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123423; ул. Саляма Адиля, д. 2; Москва</p></bio><bio xml:lang="en"><p>123423; 2, Salyama Adilya st.; Moscow</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>Ачкасов</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Achkasov</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123423; ул. Саляма Адиля, д. 2; 125993; ул. Баррикадная, д. 2/1; Москва</p></bio><bio xml:lang="en"><p>123423; 2, Salyama Adilya st.; 125993; 2/1, Barrikadnaya st.; Moscow</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>Шелыгин</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shelygin</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123423; ул. Саляма Адиля, д. 2; 125993; ул. Баррикадная, д. 2/1; Москва</p></bio><bio xml:lang="en"><p>123423; 2, Salyama Adilya st.; 125993; 2/1, Barrikadnaya st.; Moscow</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>Цуканов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsukanov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>123423; ул. Саляма Адиля, д. 2; Москва</p></bio><bio xml:lang="en"><p>123423; 2, Salyama Adilya st.; Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ Национальный медицинский исследовательский центр колопроктологии имени А.Н. Рыжих Министерства здравоохранения</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ryzhikh National Medical Research Center of Coloproctology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ Национальный медицинский исследовательский центр колопроктологии имени А.Н. Рыжих Министерства здравоохранения; ФГБОУ ДПО Российская медицинская академия непрерывного профессионального образования Министерства здравоохранения&#13;
Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ryzhikh National Medical Research Center of Coloproctology; Russian Medical Academy of Continuous Professional Education</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>19</day><month>10</month><year>2025</year></pub-date><volume>24</volume><issue>8</issue><fpage>140</fpage><lpage>141</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шубин В.П., Логинова А.Н., Ачкасов С.И., Шелыгин Ю.А., Цуканов А.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шубин В.П., Логинова А.Н., Ачкасов С.И., Шелыгин Ю.А., Цуканов А.С.</copyright-holder><copyright-holder xml:lang="en">Shubin V.P., Loginova A.N., Achkasov S.I., Shelygin Y.A., Tsukanov A.S.</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.medgen-journal.ru/jour/article/view/3152">https://www.medgen-journal.ru/jour/article/view/3152</self-uri><abstract><p>   Мутационный статус генов MAPK-киназного сигнального пути играет важную роль при назначении анти-EGFR терапии, при этом, даже несмотря на качественно проведенную диагностику генов RAS/BRAF, не все опухоли отвечают на лечение. Для поиска предиктивных маркеров эффективности анти-EGFR терапии был исследован 341 пациент с колоректальным раком. Частые мутации в генах KRAS, NRAS и BRAF выявлены у 200 (58,6 %) человек. Помимо них было обнаружено 4 редких варианта. Также было установлено, что число копий гена KRAS ≥ 9 является предиктивным маркером резистентности к анти-EGFR терапии.</p></abstract><trans-abstract xml:lang="en"><p>   The mutation status of MAPK-kinase signaling pathway genes plays an important role in anti-EGFR therapy. However not all tumors after diagnostics of RAS/BRAF genes have answered to anti-EGFR therapy. To search predictive markers for anti-EGFR therapy, 341 patients with colorectal cancer were examined. Frequent mutations in the KRAS, NRAS, and BRAF genes were detected in 200 (58.6 %) people. In addition, 4 rare mutations were detected. Also, it was found that the number of copies of the KRAS gene ≥ 9 is a predictive marker of resistance to anti-EGFR therapy.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>колоректальный рак</kwd><kwd>анти-EGFR терапия</kwd><kwd>CNV</kwd><kwd>KRAS</kwd></kwd-group><kwd-group xml:lang="en"><kwd>colorectal cancer</kwd><kwd>anti-EGFR therapy</kwd><kwd>CNV</kwd><kwd>KRAS</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование не имело спонсорской поддержки</funding-statement><funding-statement xml:lang="en">The study was not supported by sponsorship</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">Каприн А.Д., Старинский В.В., Шахзадова А.О. Состояние онкологической помощи населению России в 2023 году. Москва: МНИОИ им. П.А. 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