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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">1357</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2022-21-4-50-61</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">Expression of monomorphic HLA-determinants, transferrin receptor 1 (TfR1) in molecular subtypes of breast cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Экспрессия мономорфных HLA-детерминант, трансферринового рецептора 1 (TfR1) при молекулярных подтипах рака молочной железы</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="en"><p>24 Kashirskoe Shosse, 115522 Moscow</p><p>1a Ostrovityanova St., 117997 Moscow</p></bio><bio xml:lang="ru"><p>Светлана Васильевна Чулкова</p><p>115522 Москва, Каширское шоссе, 24</p><p>117997 Москва, ул. Островитянова, 1а</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/0000-0002-1456-1904</contrib-id><name-alternatives><name xml:lang="en"><surname>Sholokhova</surname><given-names>E. N.</given-names></name><name xml:lang="ru"><surname>Шолохова</surname><given-names>Е. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, 115522 Moscow</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0995-1801</contrib-id><name-alternatives><name xml:lang="en"><surname>Poddubnaya</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Поддубная</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Bld. 1, 2/1 Barrikadnaya St., 125993 Moscow</p></bio><bio xml:lang="ru"><p>125993 Москва, ул. Баррикадная, 2/1, стр. 1</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0493-1166</contrib-id><name-alternatives><name xml:lang="en"><surname>Stylidi</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Стилиди</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, 115522 Moscow</p><p>1a Ostrovityanova St., 117997 Moscow</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p><p>117997 Москва, ул. Островитянова, 1а</p></bio><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><bio xml:lang="en"><p>24 Kashirskoe Shosse, 115522 Moscow</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><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, 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">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.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian Medical Academy of Continuing Professional Education, 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="2022-12-10" publication-format="electronic"><day>10</day><month>12</month><year>2022</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>50</fpage><lpage>61</lpage><history><date date-type="received" iso-8601-date="2022-12-10"><day>10</day><month>12</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-12-10"><day>10</day><month>12</month><year>2022</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/1357">https://bioterapevt.abvpress.ru/jour/article/view/1357</self-uri><abstract xml:lang="en"><p><bold>Background. </bold>Immunotropic drugs are widely used in the modern strategy of cancer treatment. Importance is given to immunological markers of the tumor, which determine the prognosis of the disease, the effectiveness of treatment. Therefore, the study of their expression is one of the leading scientific directions. Of particular interest is the study of monomorphic HLA determinants, transferrin receptor 1 (TfR1), depending on its biological subtype of breast cancer.</p><p><bold>Aim. </bold>To evaluate the frequency of expression of HLA class I, II, TfR1 molecules by breast cancer cells and determine their relationship with the molecular biological subtype of the tumor.</p><p><bold>Materials</bold><bold> </bold><bold>and</bold><bold> </bold><bold>methods.</bold><bold> </bold>This study included 120 patients with breast cancer who received treatment at the N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia. Tumor stages II and III prevailed: 56.7 % and 33.4 %, respectively. A moderate degree of differentiation (G<sub>2</sub>) was more often noted. The luminal subtype was 58.3 % (<italic>n </italic>= 70), non-luminal – in 41.7 % (<italic>n </italic>= 50). Immunophenotyping of the primary tumor was performed by immunofluorescence on cryostat sections. The reaction was evaluated using a ZEISS Axioscope 5 luminescent microscope (Zeiss AG, Germany). The frequency of expression of HLA class I and II molecules were studied depending on the clinical and morphological characteristics of breast cancer. The frequency of expression of HLA class I, HLA-DR, TfR1, molecules, toumor infiltration of СD45+, CD38+, depending on the molecular subtype of breast cancer was studied.</p><p><bold>Results. </bold>It was found that the frequency of expression of monomorphic determinants of the HLA class I in luminal and non-luminal subtypes of breast cancer was comparable; HLA-DR was expressed significantly more often in the luminal subtype of breast cancer: 37.3 % and 18.0 %, respectively, <italic>p </italic>= 0.022. The frequency of TfR1 expression was significantly higher in the luminal subtype of cancer compared to non-luminal, <italic>p </italic>= 0.014. Predominantly monomorphic type of reaction was observed: in 76.5 % (<italic>n </italic>= 39) of cases. The mosaic type of the TfR1 reaction was noted in 7.8 % of the samples. TfR1 monomorphic expression was detected in 50.0 % (<italic>n </italic>= 30) of cases in non-luminal cancer, the mosaic expression – in 20.0 % (<italic>n </italic>= 12) of cases. A pronounced degree of lymphoid infiltration, in particular plasmacytic, was established in non-luminal subtype of breast cancer: 70.7 % (<italic>n </italic>= 29) and 35.0 % (<italic>n </italic>= 14), respectively, <italic>p </italic>= 0.001. An association was noted between the expression of HLA I class molecules and the severity of general leukocyte infiltration, <italic>p </italic>= 0.007.</p><p><bold>Conclusion. </bold>The frequency of expression of HLA class I monomorphic determinants did not differ in molecular subtypes of breast cancer. The expression of the HLA class II molecule was significantly more frequently observed in the luminal subtype of breast cancer. The expression of HLA class I monomorphic determinants is associated with the degree of lymphoid infiltration of the tumor. In the non-luminal subtype, plasmacytic infiltration is more pronounced. The expression of transferrin receptors is significantly more pronounced in the luminal subtype.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>В современной стратегии лечения рака широко используются иммунотропные препараты. Важное значение придается иммунологическим маркерам опухоли, которые определяют прогноз заболевания, эффективность лечения. Поэтому изучение их экспрессии является одним из ведущих научных направлений. Особый интерес представляет изучение мономорфных HLA-детерминант, трансферринового рецептора 1 (TfR1) в зависимости от биологического подтипа рака молочной железы.</p><p><bold>Цель исследования </bold>– оценить экспрессию молекул HLA I, II классов, TfR1 клетками рака молочной железы и определить их взаимосвязь с молекулярно-биологическим подтипом опухоли.</p><p><bold>Материалы и методы. </bold>В данную работу включены 120 больных раком молочной железы, которые получали лечение в ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России. Преобладали больные со II и III стадиями опухоли: 56,7 % и 33,4 % соответственно. Чаще отмечалась умеренная степень дифференцировки (G<sub>2</sub>). Люминальный подтип составил 47,5 % (<italic>n </italic>= 57), нелюминальный – 52,5 % (<italic>n </italic>= 50). Иммунофенотипирование первичной опухоли выполнено методом иммунофлуоресценции на криостатных срезах. Оценка реакции проводилась с помощью люминесцентного микроскопа ZEISS Axioscope 5 (Zeiss AG, Германия). Изучена частота экспрессии молекул HLA I класса, HLA-DR, TfR1, инфильтрация опухоли СD45+-, CD38+-клетками в зависимости от молекулярного подтипа рака молочной железы.</p><p><bold>Результаты.</bold><bold> </bold>Установлено, что частота экспрессии мономорфных детерминант HLA I класса при люминальном и нелюминальном подтипах рака молочной железы была сопоставима; HLA-DR-антиген экспрессировался достоверно чаще при люминальном подтипе рака молочной железы: 37,3 % и 18,0 % соответственно, <italic>р </italic>= 0,022. Частота экспрессии TfR1 была достоверно выше при люминальном подтипе рака по сравнению с нелюминальным, <italic>р </italic>= 0,014. Преимущественно отмечался мономорфный тип реакции – в 76,5 % случаев (<italic>n </italic>= 39). Мозаичный тип реакции TfR1 отмечен в 7,8 % образцов. При нелюминальном раке мономорфная экспрессия TfR1 выявлена в 50,0 % случаев (<italic>n</italic><italic> </italic>= 30), а мозаичная экспрессия – в 20,0 % (<italic>n</italic><italic> </italic>= 12). Установлена выраженная степень лимфоидной инфильтрации, в частности плазмоцитарной, при нелюминальном подтипе рака молочной железы: 70,7 % (<italic>n </italic>= 29) и 35,0 % (<italic>n </italic>= 14) при нелюминальном и люминальном подтипах соответственно, <italic>р </italic>= 0,001. Отмечена ассоциация экспрессии молекул HLA I класса с выраженностью общелейкоцитарной инфильтрации, <italic>р </italic>= 0,007.</p><p><bold>Заключение. </bold>Частота экспрессии мономорфных детерминант HLA I класса не различалась при молекулярных подтипах рака молочной железы. Экспрессия молекул HLA II класса достоверно чаще наблюдалась при люминальном подтипе рака молочной железы. Экспрессия мономорфных детерминант HLA I класса связана со степенью лимфоидной инфильтрации опухоли. При нелюминальном подтипе плазмоцитарная инфильтрация более выражена. Экспрессия трансферриновых рецепторов достоверно более выражена при люминальном подтипе.</p></trans-abstract><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>immunophenotyping</kwd><kwd>HLA class I</kwd><kwd>HLA-DR</kwd><kwd>TfR1</kwd><kwd>СD45</kwd><kwd>CD38 immunofluorescence</kwd><kwd>cryo-stat sections</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>иммунофенотипирование</kwd><kwd>иммунофлуоресценция</kwd><kwd>HLA I класса</kwd><kwd>HLA-DR</kwd><kwd>TfR1</kwd><kwd>СD45</kwd><kwd>CD38</kwd><kwd>криостатные срезы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sung H., Ferlay J., Siegel R.L. et al. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2021;71(3):209–49. 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