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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">Russian Journal of Biotherapy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Biotherapy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский биотерапевтический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9784</issn><issn publication-format="electronic">1726-9792</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">1215</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2020-19-3-29-37</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">DETECTION OF DISSEMINATED TUMOR CELLS IN THE BONE MARROW OF PATIENTS WITH NON-SMALL CELL LUNG CANCER</article-title><trans-title-group xml:lang="ru"><trans-title>ОБНАРУЖЕНИЕ ДИССЕМИНИРОВАННЫХ ОПУХОЛЕВЫХ КЛЕТОК В КОСТНОМ МОЗГЕ БОЛЬНЫХ НЕМЕЛКОКЛЕТОЧНЫМ РАКОМ ЛЕГКОГО</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4412-5019</contrib-id><name-alternatives><name xml:lang="en"><surname>Chulkova</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Чулкова</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>Светлана Васильевна Чулкова</p></bio><email>chulkova@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3966-128X</contrib-id><name-alternatives><name xml:lang="en"><surname>Tupitsyn</surname><given-names>N. N.</given-names></name><name xml:lang="ru"><surname>Тупицын</surname><given-names>Н. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5029-1406</contrib-id><name-alternatives><name xml:lang="en"><surname>Djumanazarov</surname><given-names>T. M.</given-names></name><name xml:lang="ru"><surname>Джуманазаров</surname><given-names>Т. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Palladina</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Палладина</surname><given-names>А. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kupryshina</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Купрышина</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chernysheva</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Чернышева</surname><given-names>О А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8378-2738</contrib-id><name-alternatives><name xml:lang="en"><surname>Allakhverdiev</surname><given-names>A. K.</given-names></name><name xml:lang="ru"><surname>Аллахвердиев</surname><given-names>А. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8493-9012</contrib-id><name-alternatives><name xml:lang="en"><surname>Kolbatskaya</surname><given-names>O. P.</given-names></name><name xml:lang="ru"><surname>Колбацкая</surname><given-names>О. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kononetz</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Кононец</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГAOУ ВО «Российский национальный исследовательский медицинский университет им. И.М. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Clinical Scientific and Practical Center of Moscow Department of Healthcare</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Московский клинический научно-практический центр им. А.С. Логинова Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Russian Medical Academy of Continuous Professional Education of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-10-13" publication-format="electronic"><day>13</day><month>10</month><year>2020</year></pub-date><volume>19</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>29</fpage><lpage>37</lpage><history><date date-type="received" iso-8601-date="2020-10-12"><day>12</day><month>10</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2020-10-12"><day>12</day><month>10</month><year>2020</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://bioterapevt.abvpress.ru/jour/article/view/1215">https://bioterapevt.abvpress.ru/jour/article/view/1215</self-uri><abstract xml:lang="en"><p/><p><bold>Introduction.</bold> There is evidence that disseminated tumor cells (DOCs) in the bone marrow (BM) are precursors of subsequent distant metastases. The detection of DOCs in non-small cell lung cancer (NSCLC) will provide important information about the features of metastasis, as well as the possibilities of identifying new targets for the treatment of NSCLC.</p><p><bold>Purpose of the study</bold> is to evaluate the possibility of detection DOCs in BM and to identify the frequency of BM involvement in patients with NSCLC.</p><p><bold>Materials and methods</bold>. Morphological and immunological methods studied 62 BM samples from patients with NSCLC. DOCs analysis was performed using flow cytometry (FACSCanto II, USA, Kaluza Analysis v 2.1 software), monoclonal antibodies to CD45, cytokeratins directly labeled with various fluorochromes were used.</p><p><bold>Results</bold>. DOCs (EPCAM+CD45–) in the BM were found in 43.5 % of patients (threshold level: 1 cell per 10 million myelocaricytes). The presence of DOCs did not correlate with tumor size, lymph node status, stage of the tumor process. The highest detection rates of DOCs were observed at stages IA and IIA: 60.7 % (3/5) and 58.3 % (7/12) respectively. BM involvement in adenocarcinoma was observed in 45 % (15/33) cases, in squamous cell carcinoma – in 37 % (10/27) samples (p = 0.501). It was found that DOCs are more often detected in more differentiated tumors (p = 0.023). Significant correlations between the presence of DOCs in the BM and myelogram parameters have not been established. A decrease in the number of granulocyte germ cells was observed in 4 % of BM involvement (p = 0.036).</p><p><bold>Conclusion.</bold> The possibility of detecting DOCs in the BM of NSCLC patients has been established. BM involvement was 43.5 %. DOCs are detected even in the early stages of NSCLC. Relationship between BM involvement and the degree of tumor differentiation was found. More frequent BM involvement was observed in adenocarcinoma compared with squamous cell carcinoma of the lung.</p><p>Compliance with patient rights and principles of bioethics</p><p>The study protocol was approved by the biomedical ethics committee of N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of Russia. All patients gave written informed consent to participate in the study.</p></abstract><trans-abstract xml:lang="ru"><p/><p/><p xml:lang="RU-RU"><bold>Введение</bold><bold>.</bold> Существуют многочисленные подтверждения того, что при ряде опухолей диссеминированные опухолевые клетки (ДОК) в костном мозге (КМ) – предшественники последующих отдаленных метастазов. Детекция ДОК при немелкоклеточном раке легкого (НМРЛ) позволит получить важную информацию об особенностях метастазирования и оценить возможности выявления новых мишеней для лекарственной терапии НМРЛ.  </p><p/><p xml:lang="RU-RU"><bold>Цель исследования</bold> – оценить возможность детекции ДОК в КМ у больных НМРЛ, а также проанализировать частоту поражения и взаимосвязь с клинико-морфологическими параметрами опухоли.  </p><p/><p xml:lang="RU-RU"><bold>Материалы и методы</bold>. Морфологическим и иммунологическим методами изучено 62 образца КМ пациентов с НМРЛ. Проведена оценка состояния гемопоэза в зависимости от наличия поражения КМ. С помощью проточной цитометрии выполнен анализ ДОК (FACSCanto II, США, программа Kaluza Analysis v 2.1). Применялись моноклональные антитела к СD45, цитокератинам, меченные напрямую различными флуорохромами.  </p><p/><p xml:lang="RU-RU"><bold>Результаты.</bold> В КМ ДОК (EPCAM+CD45–) были обнаружены у 43,5 % пациентов c НМРЛ (в качестве порогового значения приняли 1 клетку на 10 млн миелокариоцитов). Наличие ДОК не коррелировало с размером опухоли, статусом лимфатических узлов, стадией опухолевого процесса. Наибольшая частота обнаружения ДОК наблюдалась при IА- и IIА-стадии и составила 60,7 % (3/5) и 58,3 % (7/12) соответственно. Поражение КМ в 45 % (15/33) случаев наблюдалось при аденокарциноме, при плоскоклеточном раке опухолевые клетки выявлены в 37 % (10/27) образцов (р = 0,501). Установлено, что ДОК чаще выявляются при более дифференцированных опухолях (р = 0,023). Существенных корреляций между наличием ДОК в КМ и показателями миелограммы не установлено. В 4 % случаев поражения КМ наблюдалось снижение суммы клеток гранулоцитарного ростка (р = 0,036).  </p><p/><p xml:lang="RU-RU"><bold>Заключение</bold><bold>.</bold> Установлена возможность детекции ДОК в КМ больных НМРЛ. Частота поражения КМ составила 43,5 %. ДОК выявлены даже на ранних стадиях НМРЛ. Обнаружена взаимосвязь поражения КМ и степени дифференцировки опухоли. В сравнении с плоскоклеточным раком легкого более частое поражение наблюдалось при аденокарциноме. </p><p xml:lang="RU-RU">Соблюдение прав пациентов и правил биоэтики </p><p xml:lang="RU-RU">Протокол исследования одобрен комитетом по биомедицинской этике ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России. Все пациенты подписали информированное согласие на участие в исследовании.</p></trans-abstract><kwd-group xml:lang="en"><kwd>DISSEMINATED TUMOR CELLS</kwd><kwd>BONE MARROW</kwd><kwd>NON-SMALL CELL LUNG CANCER</kwd><kwd>MORPHOLOGY</kwd><kwd>FLOW CYTOMETRY</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ДИССЕМИНИРОВАННЫЕ ОПУХОЛЕВЫЕ КЛЕТКИ</kwd><kwd>КОСТНЫЙ МОЗГ</kwd><kwd>НЕМЕЛКОКЛЕТОЧНЫЙ РАК ЛЕГКОГО</kwd><kwd>МОРФОЛОГИЯ</kwd><kwd>ПРОТОЧНАЯ ЦИТОМЕТРИЯ</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>American Cancer Society. Cancer Fact and Figures. 2018.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Sai B., Xiang J. Disseminated tumor cells in bone marrow are the source of cancer relapse after therapy. J Cell Mol Med 2018;22:5776–86. DOI: 10.1111/jcmm.13867.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Pein M., Hongu T., Riedel A. et al. 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