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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="research-article" 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">1587</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2025-24-4-39-46</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Prognostic value of interleukins 6 and 8 in assessing the effectiveness of therapy in patients with triple-negative breast cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Прогностическое значение интерлейкинов 6 и 8 в оценке эффективности терапии больных трижды негативным раком молочной железы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9146-5986</contrib-id><name-alternatives><name xml:lang="en"><surname>Chertkova</surname><given-names>Antonina I.</given-names></name><name xml:lang="ru"><surname>Черткова</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9488-4710</contrib-id><name-alternatives><name xml:lang="en"><surname>Shoua</surname><given-names>Ilona B.</given-names></name><name xml:lang="ru"><surname>Шоуа</surname><given-names>И. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1854-3455</contrib-id><name-alternatives><name xml:lang="en"><surname>Borunova</surname><given-names>Anna A.</given-names></name><name xml:lang="ru"><surname>Борунова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0058-0987</contrib-id><name-alternatives><name xml:lang="en"><surname>Kadagidze</surname><given-names>Zaira G.</given-names></name><name xml:lang="ru"><surname>Кадагидзе</surname><given-names>З. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5912-1155</contrib-id><name-alternatives><name xml:lang="en"><surname>Gutorov</surname><given-names>Sergey L.</given-names></name><name xml:lang="ru"><surname>Гуторов</surname><given-names>С. Л.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7631-5699</contrib-id><name-alternatives><name xml:lang="en"><surname>Zabotina</surname><given-names>Tatiana N.</given-names></name><name xml:lang="ru"><surname>Заботина</surname><given-names>Т. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>antivch@yandex.ru</email><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><pub-date date-type="pub" iso-8601-date="2025-12-17" publication-format="electronic"><day>17</day><month>12</month><year>2025</year></pub-date><volume>24</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>39</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2025-12-17"><day>17</day><month>12</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-12-17"><day>17</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Chertkova A.I., Shoua I.B., Borunova A.A., Kadagidze Z.G., Gutorov S.L., Zabotina T.N.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Черткова А.И., Шоуа И.Б., Борунова А.А., Кадагидзе З.Г., Гуторов С.Л., Заботина Т.Н.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Chertkova A.I., Shoua I.B., Borunova A.A., Kadagidze Z.G., Gutorov S.L., Zabotina T.N.</copyright-holder><copyright-holder xml:lang="ru">Черткова А.И., Шоуа И.Б., Борунова А.А., Кадагидзе З.Г., Гуторов С.Л., Заботина Т.Н.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://bioterapevt.abvpress.ru/jour/article/view/1587">https://bioterapevt.abvpress.ru/jour/article/view/1587</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Interleukin (IL) 6 is a potent proinflammatory pleiotropic cytokine and is a key factor in the immune escape of malignant cells. IL-8 (or CXCL8) is a proinflammatory chemokine, high levels of expression of which were observed in various types of cancer.</p> <p><bold>Aim.</bold> To determine the relationship between the level of IL-6 and IL-8 cytokines in the blood serum with the main populations of peripheral blood lymphocytes and its significance for the results of neoadjuvant chemotherapy for triple-negative breast cancer (TN BC).</p> <p><bold>Materials and methods.</bold> All 64 patients received chemotherapy and surgery. The concentrations of IL-6 and IL-8 (ng/ml) in the blood serum and the percentage of the main lymphocyte populations in the peripheral blood (PB) were determined.</p> <p><bold>Results.</bold> The relationship between progression, metastasis and death of patients with higher IL-6 concentrations in the blood serum of patients with TN BC was demonstrated. Before treatment, a positive correlation was found between the IL-6 level and the percentage of HLA-DR, CD3<sup>+</sup>HLA-DR<sup>+</sup>, CD3<sup>–</sup>HLA-DR<sup>+</sup> lymphocytes, which, as previously shown, are negative prognostic factors in TN BC. An increase in the IL-6 level was combined with a decrease in the percentage of CD4<sup>+</sup> T lymphocytes.</p> <p><bold>Conclusion.</bold> The obtained results are consistent with the position that IL-6 is a negative prognostic factor in patients with BC. The positive relationship between IL-6 and “negative” HLA-DR, CD3<sup>+</sup>HLA-DR<sup>+</sup>, CD3<sup>‒</sup>HLA-DR<sup>+</sup> lymphocyte populations found in the work indicates their interaction in stimulating tumor growth.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Интерлейкин (IL) 6 – мощный провоспалительный плейотропный цитокин, известный как ключевой фактор иммунного ускользания злокачественных клеток. IL-8 (CXCL8) – провоспалительный хемокин, высокие уровни экспрессии которого наблюдаются при различных видах рака.</p> <p><bold>Цель исследования</bold> – определить связь уровня цитокинов IL-6 и IL-8 в сыворотке крови с основными популяциями лимфоцитов периферической крови и значение этой связи для результатов неоадъювантной химиотерапии рака молочной железы с трижды негативным фенотипом (ТН РМЖ).</p> <p><bold>Материалы и методы. </bold>Пациентки с ТН РМЖ (<italic>n</italic><italic> </italic>= 64) получали химиотерапевтическое и оперативное лечение. Определяли концентрации IL-6 и IL-8 (нг/мл) в сыворотке крови и процентное содержание основных популяций лимфоцитов в периферической крови.</p> <p><bold>Результаты.</bold> Продемонстрирована взаимосвязь прогрессирования, метастазирования и гибели пациенток с более высокими концентрациями IL-6 в сыворотке крови больных ТН РМЖ. До лечения обнаружена положительная корреляция уровня IL-6 с процентным содержанием HLA-DR-, CD3<sup>+</sup>HLA-DR<sup>+</sup>-, CD3<sup>–</sup>HLA-DR<sup>+</sup>-лимфоцитов, которые, как ранее было показано, являются негативными прогностическими факторами при ТН РМЖ. Повышение уровня IL-6 сочеталось со снижением доли CD4<sup>+</sup> Т-лимфоцитов.</p> <p><bold>Заключение. </bold>Полученные результаты согласуются с утверждением, что IL-6 является отрицательным прогностическим фактором у больных РМЖ. Обнаруженная в работе положительная взаимосвязь IL-6 с популяциями лимфоцитов HLA-DR<sup>+</sup>, CD3<sup>+</sup>HLA-DR<sup>+</sup>, CD3<sup>–</sup>HLA-DR<sup>+</sup> указывает на взаимодействие данного цитокина и перечисленных популяций в стимуляции опухолевого роста.</p></trans-abstract><kwd-group xml:lang="en"><kwd>interleukin 6</kwd><kwd>interleukin 8</kwd><kwd>peripheral blood lymphocyte</kwd><kwd>triple-negative breast cancer</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>интерлейкин 6</kwd><kwd>интерлейкин 8</kwd><kwd>лимфоциты периферической крови</kwd><kwd>трижды негативный рак молочной железы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Kadagidze Z.G. Cytokines. Prakticheskaya onkologiya = Practical Oncology 2003;4(3):131–9. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Кадагидзе З.Г. Цитокины. 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