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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2022-66-2-217-222</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1057</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>МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MEDICINE</subject></subj-group></article-categories><title-group><article-title>Особенности экспрессии маркеров эластогенеза в ткани инвазивного протокового рака молочной железы до и после курсов химиотерапии</article-title><trans-title-group xml:lang="en"><trans-title>Expression features of the elastogenesis markers in the invasive ductal breast cancer tissue before and after chemotherapy</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>Корнеева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneeva</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корнеева Марина Александровна – кандидат биологических. наук, старший научный сотрудник</p><p>ул. Академическая, 28, 220072, Минск</p></bio><bio xml:lang="en"><p>Korneeva Marina A. – Ph. D. (Biology), Senior Researcher</p><p>28, Akademicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">mari.derewianko@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семёник</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Siamionik</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семёник Ирина Александровна – кандидат биологических наук, старший научный сотрудник</p><p>ул. Академическая, 28, 220072, Минск</p></bio><bio xml:lang="en"><p>Siamionik Irina A. – Ph. D. (Biology), Senior Researcher</p><p>28, Akademicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">irina.derewianko@yandex.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рябцева</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Rjabceva</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рябцева Светлана Николаевна – кандидат медицинских наук, заведующий лабораторией</p><p>ул. Академическая, 28, 220072, Минск</p></bio><bio xml:lang="en"><p>Rjabceva Svetlana N. – Ph. D. (Medicine), Head of the Laboratory</p><p>28, Akademicheskaya Str., 220072, Minsk</p></bio><email xlink:type="simple">sveta.rjabceva@tut.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физиологии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Physiology of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>06</day><month>05</month><year>2022</year></pub-date><volume>66</volume><issue>2</issue><fpage>217</fpage><lpage>222</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Корнеева М.А., Семёник И.А., Рябцева С.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Корнеева М.А., Семёник И.А., Рябцева С.Н.</copyright-holder><copyright-holder xml:lang="en">Korneeva M.A., Siamionik I.A., Rjabceva S.N.</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://doklady.belnauka.by/jour/article/view/1057">https://doklady.belnauka.by/jour/article/view/1057</self-uri><abstract><p>Целью исследования было изучить изменения компонентов эластического каркаса и особенности экспрессии эластин-связывающего белка-1, лизилоксидазы-1 и тетраспанина CD151 в ткани инвазивного протокового рака молочной железы до и после курсов химиотерапии. Исследование выполнено на архивном гистологическом материале от 34 пациентов с подтвержденным морфологическим диагнозом «инфильтрирующая протоковая карцинома молочной железы». Было сформировано две группы: первой группе пациентов выполнялась резекция опухоли до назначения химиотерапии, второй группе хирургическое удаление опухоли осуществлялось после проведения неоадъювантной химиотерапии. У пациентов без химиотерапии частота выраженных скоплений эластических волокон вокруг протоков была достоверно выше (61,1 %), чем у пациентов, получавших неоадъювантную химиотерапию (25 %). После проведения химиотерапии изменяется характер экспрессии эластин-связывающего белка-1: на долю пациентов с выраженной экспрессией данного белка приходится 62,5 % наблюдений, против 16,8 % случаев у пациентов без химиотерапии. При этом у первых преобладает сочетанная цитоплазматическая и/или мембранная экспрессия данного маркера опухолевыми клетками, а у вторых около 55 % приходится на диффузную равномерную цитоплазматическую экспрессию.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>The aim of the study is to analyze the changes in the elastic fibers and the expression features of elastinbinding protein-1, lysyl oxidase-1, and tetraspanin CD151 in the invasive ductal breast cancer tissues before and after chemotherapy courses. The study included 34 patients with invasive ductal breast cancer. The patients were divided into two groups: the first group had surgical resection of the tumor before chemotherapy, and the second group had surgical resection of the residual tumor after neoadjuvant chemotherapy. The frequency of elastic fibers accumulations around the ducts in patients without chemotherapy was significantly higher (61.1 %) than that in patients after neoadjuvant chemotherapy (25.0 %). After chemotherapy, the expression of elastin-binding protein-1 changed: the proportion of patients with a strong expression of this protein in tumor cells after chemotherapy increased (62.5 %) in comparison to patients without chemotherapy (16.8 %). The combined cytoplasmic and/or membrane expression of elastin-binding protein-1 in the tumor cells predominated in the second group compared with diffuse cytoplasmic expression (55.0 %) in tumor cells of patients of the first group.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>химиотерапия</kwd><kwd>эластические волокна</kwd><kwd>эластин-связывающий белок</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>chemotherapy</kwd><kwd>elastic fibers</kwd><kwd>elastin-binding protein</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках договора БРФФИ (проект М19М-034)</funding-statement><funding-statement xml:lang="en">The research is carried out within the framework of the BRFF agreement (Project М19М-034)</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">National institutes of health consensus development conference statement: adjuvant therapy for breast cancer // Journal of the National Cancer Institute. – 2001. – Vol. 93, N 13. – Р. 979–989. https://doi.org/10.1093/jnci/93.13.979</mixed-citation><mixed-citation xml:lang="en">National institutes of health consensus development conference statement: adjuvant therapy for breast cancer. 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