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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">rpmj</journal-id><journal-title-group><journal-title xml:lang="ru">Research'n Practical Medicine Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Research and Practical Medicine Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2410-1893</issn><publisher><publisher-name>"QUASAR", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17709/2409-2231-2020-7-4-1</article-id><article-id custom-type="elpub" pub-id-type="custom">rpmj-628</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>Оригинальные статьи. Онкология, лучевая терапия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Articles. Оncology</subject></subj-group></article-categories><title-group><article-title>Экспрессия E- и N-кадгеринов в опухоли при люминальном первично-операбельном раке молочной железы без гиперэкспрессии Her2/neu у женщин в постменопаузе как прогностический фактор</article-title><trans-title-group xml:lang="en"><trans-title>Expression of E- and N-cadherins in tumor in luminal, primary operable breast cancer without Her2/neu overexpression in postmenopausal women as a prognostic factor</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>Токмаков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tokmakov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Токмаков Василий Васильевич – врач-онколог</p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p></bio><bio xml:lang="en"><p>Vasilii V. Tokmakov – oncologist</p><p>63 14 line str., Rostov-on-Don, 344037</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/0000-0001-5226-0152</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ульянова</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Ulianova</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ульянова Елена Петровна – научный сотрудник лаборатории иммунофенотипирования опухолей </p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 1243-9475</p><p>AuthorID: 759154</p><p>Scopus Author ID: 57203357998</p></bio><bio xml:lang="en"><p>Elena P. Ulianova – researcher at the laboratory of tumor immunophenotyping</p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 1243-9475</p><p>AuthorID: 759154</p><p>Scopus Author ID: 57203357998</p></bio><email xlink:type="simple">uljanova_elena@lenta.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/0000-0002-1748-9186</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шатова</surname><given-names>Ю. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shatova</surname><given-names>Yu. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шатова Юлианна Сергеевна – д.м.н., врач-онколог </p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 8503-3573</p><p>AuthorID: 294376</p><p>Scopus Author ID: 57200279683</p></bio><bio xml:lang="en"><p>Yuliana S. Shatova – Dr. Sci. (Med.), oncologist </p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 8503-3573</p><p>AuthorID: 294376</p><p>Scopus Author ID: 57200279683</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/0000-0003-0874-5261</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сагакянц</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sagakyants</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сагакянц Александр Борисович – к.б.н., доцент, руководитель лаборатории иммунофенотипирования опухолей </p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 7272-1408</p><p>AuthorID: 426904</p><p>ResearcherID: M-8378-2019</p><p>Scopus Author ID: 24329773900</p></bio><bio xml:lang="en"><p>Alexander B. Sagakyants – Cand. Sci. (Biol.), associate professor, head of the laboratory of tumor immunophenotyping </p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 7272-1408</p><p>AuthorID: 426904</p><p>ResearcherID: M-8378-2019</p><p>Scopus Author ID: 24329773900</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/0000-0003-2976-1471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мащенко</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mashchenko</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мащенко Наталья Михайловна – ведущий специалист научно-аналитического отдела</p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 8650-5320</p><p>AuthorID: 564828</p><p>Scopus Author ID: 24329773900</p></bio><bio xml:lang="en"><p>Natalia M. Mashchenko – leading specialist of the scientific and analytical Department National Medical Research Centre for Oncology of the Ministry of Health of Russia</p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 8650-5320</p><p>AuthorID: 564828</p><p>Scopus Author ID: 24329773900</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/0000-0002-6496-9641</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новикова</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikova</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новикова Инна Арнольдовна – к.м.н., заместитель генерального директора по науке</p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 4810-2424</p><p>AuthorID: 726229</p><p>ResearcherID: E-7710-2018</p><p>Scopus Author ID: 7005153343</p></bio><bio xml:lang="en"><p>Inna A. Novikova – Cand. Sci. (Med.), deputy director general for science National Medical Research Centre for Oncology of the Ministry of Health of Russia</p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 4810-2424</p><p>AuthorID: 726229</p><p>ResearcherID: E-7710-2018</p><p>Scopus Author ID: 7005153343</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/0000-0003-0521-8837</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Непомнящая</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Nepomnyashchaya</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Непомнящая Евгения Марковна – д.м.н., профессор, врач-патологоанатом </p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 8930-9580</p><p>AuthorID: 519969</p></bio><bio xml:lang="en"><p>Evgeniya M. Nepomnyashchaya – Dr. Sci. (Med.), professor, pathologist </p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 8930-9580</p><p>AuthorID: 519969</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/0000-0001-6828-145X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шульгина</surname><given-names>О. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Shulgina</surname><given-names>O. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шульгина Оксана Геннадьевна – младший научный сотрудник лаборатории иммунофенотипирования опухолей </p><p>344037, г. Ростов-на-Дону, 14-линия, д. 63</p><p>SPIN: 9668-3042</p><p>AuthorID: 886334</p></bio><bio xml:lang="en"><p>Oksana G. Shulgina – junior researcher at the laboratory of tumor immunophenotyping </p><p>63 14 line str., Rostov-on-Don, 344037</p><p>SPIN: 9668-3042</p><p>AuthorID: 886334</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ онкологии» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Centre for Oncology of the Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>19</day><month>12</month><year>2020</year></pub-date><volume>7</volume><issue>4</issue><fpage>10</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Токмаков В.В., Ульянова Е.П., Шатова Ю.С., Сагакянц А.Б., Мащенко Н.М., Новикова И.А., Непомнящая Е.М., Шульгина О.Г., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Токмаков В.В., Ульянова Е.П., Шатова Ю.С., Сагакянц А.Б., Мащенко Н.М., Новикова И.А., Непомнящая Е.М., Шульгина О.Г.</copyright-holder><copyright-holder xml:lang="en">Tokmakov V.V., Ulianova E.P., Shatova Y.S., Sagakyants A.B., Mashchenko N.M., Novikova I.A., Nepomnyashchaya E.M., Shulgina O.G.</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.rpmj.ru/rpmj/article/view/628">https://www.rpmj.ru/rpmj/article/view/628</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Оценить прогностическую роль уровня экспрессии E- и N-кадгерина в опухолевой ткани у пациенток с первично- операбельным люминальным раком молочной железы без гиперэкспрессии Her2/neu в постменопаузе для включения в панель комплексной оценки биологических показателей в опухоли при определении прогноза данного заболевания.</p></sec><sec><title>Пациенты и методы</title><p>Пациенты и методы. Материалом послужила выборка из 120 пациенток, которые были поделены на две группы: с Люминальным А и Люминальным В подтипами. Для оценки прогностического значения E- и N- кадгерина у пациенток обеих групп были проанализированы уровень экспрессии и корреляционная связь с помощью U-критерия Манна- Уитни и критерия корреляции Спирмена; общая выживаемость до прогрессирования и опухоль- специфическая при различных значениях изучаемых биомаркеров — методом Каплана- Мейера.</p></sec><sec><title>Результаты</title><p>Результаты. Различия в среднем уровне экспрессии в ходе исследования оказались статистически не значимы (p&gt;0,05). При определении E-кадгерина разница наблюдалась в 2 раза выше в Люминальном А — 55,4±5,2 — по сравнению с Люминальным В — 28,1±4,9), N- кадгерина — в 1,3 раза ниже в Люминальном А — 12,8±5,3 — по сравнению с Люминальным В — 17,06±5,4. В группе с Люминальным В прослеживалась тенденция к потере E-кадгерина и усилению экспрессии N-кадгерина, которая часто связана с плохим прогнозом. Однако, корреляционная связь между данными маркерами также была статистически не значима (p&gt;0,05).</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of the study</title><p>Purpose of the study. Evaluation of the expression of E- and N-cadherins in tumor tissues in postmenopausal patients with primary operable luminal breast cancer (BC) without Her2/neu overexpression for inclusion in the panel of a comprehensive assessment of tumor biological parameters for the disease prognosis.</p></sec><sec><title>Patients and methods</title><p>Patients and methods. The study included 120 patients divided into two groups: patients with luminal A and luminal B subtypes. To evaluate the prognostic significance of E- and N- cadherins in both groups of patients, we analyzed expression levels and correlation using the Mann- Whitney U-test and Spearman correlation criterion; overall survival, progression-free and tumor- specific one, at various values of the studied biomarkers — by the Kaplan- Meier method.</p></sec><sec><title>Results</title><p>Results. The differences in the mean expression levels were not statistically significant (p&gt;0,05). E-cadherin was twice higher in luminal A BC (55.4±5.2) compared to luminal B BC (28.1±4.9), N-cadherin in luminal A BC (12.8±5.3) was 1.3 times lower than in luminal B BC (17.06±5.4). Patients with luminal B BC demonstrated a tendency to the loss of E-cadherin and increased expression of N-cadherin, which is often associated with poor prognosis. However, the correlation between these markers was not statistically significant (p&gt;0,05).</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>Люминальный В подтип</kwd><kwd>ИГХ-маркеры</kwd><kwd>средний уровень экспрессии</kwd><kwd>прогноз</kwd><kwd>выживаемость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>luminal B subtype</kwd><kwd>IHC markers</kwd><kwd>average expression level</kwd><kwd>prognosis</kwd><kwd>survival</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Палтуев Р.М. Биологическое обоснование персонализации лечения рака молочной железы. Клиническое значение определения новых маркеров рака молочной железы. Опухоли женской репродуктивной системы. 2019;15(2):10– 29. https://doi.org/10.17650/1994-4098-2019-15-2-10-29</mixed-citation><mixed-citation xml:lang="en">Paltuev RM. 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