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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">1390</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2023-22-2-53-59</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">Relationship of <italic>SLCO1B1</italic> and <italic>ABCB1</italic> gene polymorphisms with clinical variants of methotrexate toxicity in pediatric acute lymphoblastic leukemia therapy</article-title><trans-title-group xml:lang="ru"><trans-title>Взаимосвязь полиморфизмов генов белков-переносчиков <italic>SLCO1B1</italic> и <italic>ABCB1</italic> с клиническими вариантами токсичности метотрексата при терапии острого лимфобластного лейкоза у детей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0050-0721</contrib-id><name-alternatives><name xml:lang="en"><surname>Gurieva</surname><given-names>О. D.</given-names></name><name xml:lang="ru"><surname>Гурьева</surname><given-names>О. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>Оксана Дмитриевна Гурьева</p><p>115522 Москва, Каширское шоссе, 24</p></bio><email>swimmer96ok@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2373-2250</contrib-id><name-alternatives><name xml:lang="en"><surname>Savelyeva</surname><given-names>М. I.</given-names></name><name xml:lang="ru"><surname>Савельева</surname><given-names>М. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>5 Revolyutsionnaya St., Yaroslavl 150000</p></bio><bio xml:lang="ru"><p>150000 Ярославль, ул. Революционная, 5</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5166-7903</contrib-id><name-alternatives><name xml:lang="en"><surname>Sozaeva</surname><given-names>Zh. A.</given-names></name><name xml:lang="ru"><surname>Созаева</surname><given-names>Ж. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Bld. 1, 2/1 Barrikadnaya St., Moscow 125993</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/0000-0002-1469-2365</contrib-id><name-alternatives><name xml:lang="en"><surname>Valiev</surname><given-names>Т. T.</given-names></name><name xml:lang="ru"><surname>Валиев</surname><given-names>Т. Т.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522;</p><p>Bld. 1, 2/1 Barrikadnaya St., Moscow 125993</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24;</p><p>125993 Москва, ул. Баррикадная, 2 / 1, стр. 1</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N. N. Blokhin National Medical Research Centre 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">Yaroslavl State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Ярославский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian Medical Academy of Continuous 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="2023-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2023</year></pub-date><volume>22</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>53</fpage><lpage>59</lpage><history><date date-type="received" iso-8601-date="2023-07-15"><day>15</day><month>07</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-07-15"><day>15</day><month>07</month><year>2023</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/1390">https://bioterapevt.abvpress.ru/jour/article/view/1390</self-uri><abstract xml:lang="en"><p><bold>Background. </bold>Despite the significant clinical efficacy of current treatment protocols for acute lymphoblastic leukemia (ALL) in children, high-dose methotrexate demonstrates significant interindividual variability in drug toxicity and disease outcomes due to polymorphisms of drug transporter genes and genes responsible for cytostatic metabolism, which makes pharmacogenetic studies increasingly relevant.</p><p><bold>Aim. </bold>To evaluate the association of <italic>ABCB1 </italic>(C3435T rs1045642, rs1128503, rs2032582, rs4148738), <italic>SLCO1B1 </italic>T521C rs4149056 gene polymorphisms with the main types of methotrexate toxicity and the onset of clinical events (death, recurrence, progression) during the treatment of childhood ALL.</p><p><bold>Materials and methods. </bold>The study enrolled 103 patients diagnosed with ALL who received therapy according to BFM group protocols (2002/2009), using high-dose (2000 and 5000 mg/m<sup>2</sup>) methotrexate. Laboratory methods using NCI toxicity scales (CTCAE v5.0 2018) were used to assess adverse reactions. Real-time polymerase chain reaction method was used to study <italic>ABCB1 </italic>and <italic>SLCO1B1 </italic>gene polymorphisms. The study material was peripheral blood. Material was sampled once, regardless of the duration of methotrexate therapy. SPSS Statistics 21.0 software was used for statistical processing of the results. Analysis of associations was performed using the χ2 criterion and Fisher’s exact test.</p><p><bold>Results. </bold>Development of infectious complications, oropharyngeal mucositis, delayed MTX elimination, events were significantly associated with polymorphisms of the studied genes: <italic>SLCO1B1 </italic>T521C rs4149056, <italic>ABCB1 </italic>rs4148738, <italic>ABCB1 </italic>rs1128503, which correlates with the data of world scientific literature.</p><p><bold>Conclusion. </bold>Determination of polymorphisms of genes responsible for the transport and metabolism of methotrexate is a promising and dynamically developing area of clinical oncology.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>Несмотря на доказанную клиническую эффективность современных протоколов лечения острого лимфобластного лейкоза (ОЛЛ) у детей, высокие дозы метотрексата демонстрируют значительную межиндивидуальную вариабельность лекарственной токсичности и исходов заболевания. Такая вариабельность, вероятно, обусловлена полиморфизмами генов-транспортеров лекарственных средств и генов, ответственных за метаболизм цитостатиков, что делает фармакогенетические исследования все более актуальными.</p><p><bold>Цель исследования </bold>– оценить ассоциативную связь генетических полиморфизмов <italic>ABCB1 </italic>(C3435T rs1045642, rs1128503, rs2032582, rs4148738), <italic>SLCO1B1 </italic>T521C rs4149056 с основными видами токсичности метотрексата и наступлением клинического события (смерть, рецидив, прогрессия) при лечении ОЛЛ у детей.</p><p><bold>Материалы и методы. </bold>В исследование включены 103 пациента с диагнозом ОЛЛ, получавшие терапию по протоколам немецкой группы BFM (2002/2009) c использованием высоких доз метотрексата (2000 и 5000 мг/м<sup>2</sup>). Для оценки нежелательных реакций применялись лабораторные методы с использованием шкалы токсичности NCI (CTCAE v5.0 2018 г.). Исследование полиморфизмов генов <italic>ABCB1 </italic>и <italic>SLCO1B1 </italic>выполнено с помощью метода  полимеразной цепной реакции в режиме реального времени. Забор материала проводили однократно, независимо от сроков терапии метотрексатом. Для статистической обработки результатов использовали программу SPSS Statistics 21.0. Анализ ассоциаций выполнен с использованием критерия χ<sup>2</sup> и точного критерия Фишера.</p><p><bold>Результаты. </bold>Развитие инфекционных осложнений, орофарингеального мукозита, задержки элиминации метотрексата значимо ассоциировано с полиморфизмами исследуемых генов – <italic>SLCO1B1 </italic>T521C rs4149056, <italic>ABCB1</italic> rs4148738 и <italic>ABCB1 </italic>rs1128503 соответственно, что коррелирует с данными мировой научной литературы.</p><p><bold>Заключение. </bold>Определение полиморфизмов генов, обеспечивающих транспорт и метаболизм метотрексата, является многообещающим и динамично развивающимся направлением клинической онкологии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pharmacogenetics</kwd><kwd>drug toxicity</kwd><kwd>chemotherapy</kwd><kwd>acute lymphoblastic leukemia</kwd><kwd>children</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фармакогенетика</kwd><kwd>лекарственная токсичность</kwd><kwd>химиотерапия</kwd><kwd>острый лимфобластный лейкоз</kwd><kwd>дети</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was financially supported by the Ministry of Health of Russia. The subject of the state task «New pharmacogenetic markers of safety of pharmacotherapy for some socially significant diseases» (Uniform State Health Information System (USHIS) № 1022050400012-9).</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Миздрава России. Тематика государственного задания «Новые фармакогенетические маркеры безопасности фармакотерапии некоторых социально значимых заболеваний» (ЕГИСУ НИОКТР № 1022050400012-9).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Howlader N., Noone A., Krapcho M. et al. SEER cancer statistics review, 1975–2014. National Cancer Institute, 2016. Available at: https://seer.cancer.gov/csr/1975_2014/. Accessed 24 Apr. 2018.</mixed-citation></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Shervashidze M.A., Valiev T.T., Tupitsyn N.N. 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