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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">10.21294/1814-4861-2023-22-1-74-81</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-2433</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>Особенности экспрессии белка LIMCH1, связанные с лимфогенным метастазированием при раке молочной железы</article-title><trans-title-group xml:lang="en"><trans-title>LIMCH1 protein expression associated with lymph node metastasis in breast cancer</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3025-4445</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алифанов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alifanov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алифанов Владимир Валерьевич, младший научный сотрудник отделения общей и молекулярной патологии</p><p>634009, г. Томск, пер. Кооперативный, 5</p><p>SPIN-код: 7943-5548,</p><p>Researcher ID (WOS): AAW-8959-2021,</p><p>Author ID (Scopus): 57225891731</p></bio><bio xml:lang="en"><p>Vladimir V. Alifanov, Junior Researcher, Department of General and Molecular Pathology</p><p>5, Kooperativny St., 634009, Tomsk</p><p>Researcher ID (WOS): AAW-8959-2021,</p><p>Author ID (Scopus): 57225891731</p></bio><email xlink:type="simple">alifanov.vl@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/0000-0003-2061-8417</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таширева</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tashireva</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Таширева Любовь Александровна, доктор медицинских наук, заведующая лабораторией молекулярной терапии рака</p><p>634009, г. Томск, пер. Кооперативный, 5</p><p>SPIN-код: 4371-5340,</p><p>Researcher ID (WOS): C-8222-2012,</p><p>Author ID (Scopus): 55234960400</p></bio><bio xml:lang="en"><p>Lyubov A. Tashireva, MD, DSc, Head of the Laboratory of Molecular Cancer Therapy</p><p>5, Kooperativny St., 634009, Tomsk</p><p>Researcher ID (WOS): C-8222-2012,</p><p>Author ID (Scopus): 55234960400</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>Завьялова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zavyalova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Завьялова Марина Викторовна, доктор медицинских наук, профессор, ведущий научный сотрудник отделения общей и молекулярной патологии</p><p>634009, г. Томск, пер. Кооперативный, 5</p><p>SPIN-код: 1229-0323,</p><p>Researcher ID (WOS): C-8580-2012,</p><p>Author ID (Scopus): 36711031100</p></bio><bio xml:lang="en"><p>Marina V. Zavyalova, MD, Professor, Leading Researcher of the Department of General and Molecular Pathology</p><p>5, Kooperativny St., 634009, Tomsk</p><p>Researcher ID (WOS): C-8580-2012,</p><p>Author ID (Scopus): 36711031100</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/0000-0002-7633-9620</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Перельмутер</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Perelmuter</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Перельмутер Владимир Михайлович, доктор медицинских наук, профессор, главный научный сотрудник отделения общей и молекулярной патологии</p><p>634009, г. Томск, пер. Кооперативный, 5</p><p>SPIN-код: 6252-5319,</p><p>Researcher ID (WOS): C-8227-2012,</p><p>Author ID (Scopus): 8091317300</p></bio><bio xml:lang="en"><p>Vladimir M. Perelmuter, MD, Professor, Chief Researcher of the Department of General and Molecular Pathology</p><p>5, Kooperativny St., 634009, Tomsk</p><p>Researcher ID (WOS): C-8227-2012,</p><p>Author ID (Scopus): 8091317300</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Научно-исследовательский институт онкологии, Томский национальный исследовательский медицинский центр Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>22</day><month>02</month><year>2023</year></pub-date><volume>22</volume><issue>1</issue><fpage>74</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алифанов В.В., Таширева Л.А., Завьялова М.В., Перельмутер В.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алифанов В.В., Таширева Л.А., Завьялова М.В., Перельмутер В.М.</copyright-holder><copyright-holder xml:lang="en">Alifanov V.V., Tashireva L.A., Zavyalova M.V., Perelmuter V.M.</copyright-holder><license 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/2433">https://www.siboncoj.ru/jour/article/view/2433</self-uri><abstract><p>Лимфогенное метастазирование не только является вариантом прогрессирования при раке молочной железы, но и связано с развитием гематогенных метастазов. Белок LIMCH1 (LIM And Calponin Homology Domains 1) участвует в мезенхимальном типе миграции вследствие активации немышечного миозина IIA.</p><p>Цель исследования – изучить ассоциацию различных вариантов экспрессии белка LIMCH1 с лимфогенным метастазированием.</p><sec><title>Материал и методы</title><p>Материал и методы. В ретроспективное исследование было включено 53 больных с диагнозом инвазивной карциномы молочной железы неспецифического типа. В группу исследования были включены больные со всеми молекулярно-биологическими подтипами (люминальный А, люминальный Б, HER2-позитивный и трижды негативный). Средний возраст больных составил 55,4 ± 14 лет. По классификации TNM больные имели стадии T1–3N0–3M0. Предоперационную химиотерапию не проводили. Экспрессия белка LIMCH1 в опухолевых клетках оценивалась иммуногистохимическими методами. Использовались антитела anti-LIMCH1-Prestige (HPA004184, Sigma Aldrich, Germany) и anti-LIMCH1-C-term (SAB2700402, Sigma Aldrich, Germany).</p></sec><sec><title>Результаты</title><p>Результаты. Лимфогенные метастазы чаще развивались в группе больных с наличием экспрессии белка LIMCH1 в опухолевых клетках. Это справедливо для цитоплазматической экспрессии белка LIMCH1, определяемого по CH домену, но не для субмембранной экспрессии или экспрессии белка LIMCH1, определяемого по LIM домену, вне зависимости от локализации в клетке. Данный феномен не был ассоциирован с морфологической гетерогенностью рака молочной железы. Наиболее неблагоприятным фактором безметастатической выживаемости является сочетание наличия лимфогенных метастазов и цитоплазматической экспрессии белка LIMCH1, определяемого по CH домену.</p></sec><sec><title>Заключение</title><p>Заключение. Развитие синхронных лимфогенных метастазов при раке молочной железы ассоциировано с наличием цитоплазматической экспрессии белка LIMCH1, определяемого по CH домену в ткани первичной опухоли.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Lymph node metastasis in breast cancer is not only a variant of cancer progression, but is also associated with the development of hematogenous metastases. The LIMCH1 protein is involved in the mesenchymal type of migration due to the activation of non-muscle myosin IIA.</p><p>The objective of the study was to investigate the association of different LIMCH1 protein expression variants with lymph node metastasis.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The retrospective study included 53 patients with invasive breast carcinoma of no special type. The study group included all molecular genetic types (luminal A, luminal B, HER2-positive and triple negative). The median age of the patients was 55.4 ± 14 years. According to the TNM classification, patients had stage T1–3N0–3M0 breast cancer. The patients did not receive preoperative chemotherapy. The expression of the LIMCH1 protein in tumor cells was assessed using immunohistochemistry. Anti-LIMCH1Prestige (HPA004184, Sigma Aldrich, Germany) and anti-LIMCH1-C-term (SAB2700402, Sigma Aldrich, Germany) antibodies were used.</p></sec><sec><title>Results</title><p>Results. Lymph node metastases were more frequent in patients with LIMCH1 protein expression in tumor cells. This is true for cytoplasmic expression of the LIMCH1 protein detected by the CH domain, but not for submembrane expression or expression of the LIMCH1 protein detected by the LIM domain, regardless of localization in the cell. This phenomenon was not associated with the morphological heterogeneity of breast cancer. The most unfavorable factor for worse metastasis-free survival is the combination of the presence of lymph node metastases and cytoplasmic expression of the LIMCH1 protein detected by the CH domain.</p></sec><sec><title>Conclusion</title><p>Conclusion. The development of synchronous lymph node metastases in breast cancer is associated with the presence of cytoplasmic expression of the LIMCH1 protein detected by the CH domain in the primary tumor tissue.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>LIMCH1</kwd><kwd>рак молочной железы</kwd><kwd>лимфогенное метастазирование</kwd><kwd>инвазия</kwd><kwd>морфологическая гетерогенность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>LIMCH1</kwd><kwd>breast cancer</kwd><kwd>lymph node metastasis</kwd><kwd>invasion</kwd><kwd>morphological heterogeneity</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена с использованием оборудования ЦКП «Медицинская геномика» Томского НИМЦ</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The study was carried out using the equipment of the Center for Collective Use “Medical Genomics” of the Tomsk National Research Medical Center</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">Шевченко Ю.А., Кузнецова М.С., Христин А.А., Сидоров С.В., Сенников С.В. 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