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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">10.21294/1814-4861-2024-23-4-86-95</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-3195</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>Интегриновый профиль циркулирующих опухолевых клеток у больных раком молочной железы</article-title><trans-title-group xml:lang="en"><trans-title>Integrin profile of circulating tumour cells in breast cancer patients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4737-8951</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoryeva</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорьева Евгения Сергеевна, кандидат медицинских наук, старший научный сотрудник лаборатории молекулярной терапии рака, старший научный сотрудник лаборатории молекулярной онкологии и иммунологии</p><p>Researcher ID (WOS): C-8571-2012</p><p>Author ID (Scopus): 21934560600</p><p>634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Evgeniya S. Grigoryeva, MD, PhD, Senior Researcher, Laboratory of Molecular Cancer Therapy, Senior Researcher, Laboratory of Molecular Oncology and Immunology</p><p>Researcher ID (WOS): C-8571-2012</p><p>Author ID (Scopus): 21934560600</p><p>5, Kooperativny St., Tomsk, 634009</p></bio><email xlink:type="simple">grigoryeva.es@gmail.com</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>Researcher ID (WOS): С-8222-2012</p><p>Author ID (Scopus): 55234960400</p><p>634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Lyubov A. Tashireva, MD, DSc, Head of the Laboratory of Molecular Cancer Therapy</p><p>Researcher ID (WOS): C-8222-2012</p><p>Author ID (Scopus): 55234960400</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/0000-0003-2061-8417</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, кандидат медицинских наук, младший научный сотрудник отделения общей и молекулярной патологии</p><p>Researcher ID (WOS): AAW-8959-2021</p><p>Author ID (Scopus): 57225891731</p><p>634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Vladimir V. Alifanov, MD, PhD, Junior Researcher, Department of General and Molecular Pathology</p><p>Researcher ID (WOS): AAW-8959-2021</p><p>Author ID (Scopus): 57225891731</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/0000-0001-9429-9813</contrib-id><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>Researcher ID (WOS): C-8580-2012</p><p>Author ID (Scopus): 36711031100</p><p>634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Marina V. Zavyalova, MD, Professor, Leading Researcher, Department of General and Molecular Pathology</p><p>Researcher ID (WOS): C-8580-2012</p><p>Author ID (Scopus): 36711031100</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/0000-0002-7633-9620</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, заслуженный деятель науки РФ, главный научный сотрудник отделения общей и молекулярной патологии</p><p>Researcher ID (WOS): C-8227-2012</p><p>Author ID (Scopus): 8091317300</p><p>634009, г. Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Vladimir M. Perelmuter, MD, Professor, Chief Researcher, Department of General and Molecular Pathology</p><p>Researcher ID (WOS): C-8227-2012</p><p>Author ID (Scopus): 8091317300</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</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>2024</year></pub-date><pub-date pub-type="epub"><day>08</day><month>09</month><year>2024</year></pub-date><volume>23</volume><issue>4</issue><fpage>86</fpage><lpage>95</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Григорьева Е.С., Таширева Л.А., Алифанов В.В., Завьялова М.В., Перельмутер В.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Григорьева Е.С., Таширева Л.А., Алифанов В.В., Завьялова М.В., Перельмутер В.М.</copyright-holder><copyright-holder xml:lang="en">Grigoryeva E.S., Tashireva L.A., Alifanov V.V., Zavyalova M.V., Perelmuter V.M.</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/3195">https://www.siboncoj.ru/jour/article/view/3195</self-uri><abstract><p>Интегрины как молекулы адгезии играют ключевую роль во взаимодействии клеток с базальной мембраной и межклеточным матриксом. Многочисленные исследования сообщают о повышенной экспрессии интегринов на опухолевых клетках при различных типах рака. Так, интегрины β3 и αV ассоциированы со стволовыми признаками опухолевых клеток, интегрин β4 в составе гетеродимера α6β4 обеспечивает якорь-независимое выживание злокачественных эпителиальных клеток молочной железы. Однако все описанные функции интегринов исследованы исключительно на клетках первичных опухолей, тогда как функциональное значение и характер экспрессии интегринов на циркулирующих опухолевых клетках (ЦОК) остаются неясными. Цель исследования – оценка экспрессии интегринов β3, β4 и αvβ5 на ЦОК при раке молочной железы (РМЖ) и ее связи с проявлениями опухолевой болезни. Материал и методы. В исследование вошло 22 пациентки с инвазивной протоковой карциномой молочной железы T1–4N0–3M0 стадии. Венозную кровь брали у больных без неоадъювантной химиотерапии (НАХТ) (группа 1) и получивших НАХТ (группа 2) утром натощак в объеме 12 мл в вакуумные пробирки с ЭДТА. Экспрессию интегринов ЦОК с учетом признаков стволовости CD44/CD24, CD133 и ALDH1 и эпителиально-мезенхимального перехода (ЭМП) (N-cadherin) оценивали методом проточной цитофлуориметрии. Результаты. Циркулирующие опухолевые клетки с фенотипами β3+β4-αvβ5- и β3-β4+αvβ5+ в сочетании с признаками стволовости были ассоциированы с большим размером опухоли (T4). При этом экспрессия интегрина β3 была связана с более неблагоприятными молекулярно-биологическим подтипами РМЖ. Проведение неоадъювантной химиотерапии не влияло на характер экспрессии интегринов β3, β4 и αvβ5 в ЦОК. Заключение. Большинство ЦОК при РМЖ экспрессируют β3, β4 и αvβ5, несмотря на отсутствие связи с базальной мембраной и межклеточным матриксом. Экспрессия изученных интегринов на ЦОК сопряжена с проявлениями опухолевой болезни, в связи с чем ее оценка может рассматриваться в качестве одной из задач исследования жидкостной биопсии.</p></abstract><trans-abstract xml:lang="en"><p>Background. Integrins, as adhesion molecules, play a key role in the interaction of cells with the basal membrane and intercellular matrix. Numerous studies demonstrate evidence of increased expression of integrins on tumor cells in different types of cancer. Thus, β3 and αV integrins are associated with stem-like features of tumor cells, and β4 integrin as α6β4 heterodimer provides anchorage-independent survival of malignant mammary epithelial cells. However, all the described functions of integrins have been investigated exclusively on primary tumor cells. The functional significance and expression pattern of integrins on circulating tumor cells (CTCs) remains unclear. The aim of the study was to evaluate the β3, β4 and αvβ5 integrin expression on CTCs and its association with molecular subtype, stage and lymph node metastasis in breast cancer patients Material and Methods. The study included 22 patients with T1–4N0–3M0 invasive ductal breast carcinoma. Venous blood was taken from patients without neoadjuvant chemotherapy (group 1) and after neoadjuvant chemotherapy (group 2) in the volume of 12 ml into vacuum tubes with EDTA. The expression of CTC integrins including stemness features CD44/CD24, CD133 and ALDH1, and epithelial-mesenchymal transition (EMT) (N-cadherin) was evaluated by flow cytometry. Results. CTCs with β3+β4-αvβ5- and β3-β4+αvβ5+ phenotypes and stemness properties were associated with larger tumor size (T4) in breast cancer patients. The β3 integrin expression was associated with more aggressive molecular subtypes of breast cancer. Administration of neoadjuvant chemotherapy did not affect the expression pattern of β3, β4 and αvβ5 integrins in CTCs. Conclusion. In breast cancer, most CTCs expressed β3, β4 and αvβ5 integrins despite the lack of attachment to the basal membrane and intercellular matrix. The expression of the above integrins on CTCs was associated with breast cancer molecular subtype, stage and lymph node metastasis, and therefore its evaluation can be considered as one of the objectives of liquid biopsy study.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>циркулирующие опухолевые клетки</kwd><kwd>интегрины</kwd><kwd>неоадъювантная химиотерапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>circulating tumor cells</kwd><kwd>integrins</kwd><kwd>neoadjuvant chemotherapy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование было поддержано Российским научным фондом (грант № 21-15-00140 «Прогнозирование локализации гематогенных метастазов при раке молочной железы»).</funding-statement><funding-statement xml:lang="en">The study was supported by the Russian Science Foundation (grant No. 21-15-00140).</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">Su C.Y., Li J.Q., Zhang L.L., Wang H., Wang F.H., Tao Y.W., Wang Y.Q., Guo Q.R., Li J.J., Liu Y., Yan Y.Y., Zhang J.Y. 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