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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">Oncohematology</journal-id><journal-title-group><journal-title xml:lang="en">Oncohematology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкогематология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1818-8346</issn><issn publication-format="electronic">2413-4023</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">983</article-id><article-id pub-id-type="doi">10.17650/1818-8346-2024-19-4-150-163</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CURRENT BASIC RESEARCH IN HEMATOLOGY AND PRACTICAL MEDICINE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ФУНДАМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ В ОНКОГЕМАТОЛОГИИ И ПРАКТИЧЕСКОЙ МЕДИЦИНЕ НА СОВРЕМЕННОМ ЭТАПЕ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Results of various somatic mutations detection in patients with chronic myeloid leukemia</article-title><trans-title-group xml:lang="ru"><trans-title>Результаты определения соматических мутаций в различных генах у больных хроническим миелолейкозом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9181-6050</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuzmina</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Кузьмина</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Elena Andreevna Kuzmina,</bold></p><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p><bold>Елена Андреевна Кузьмина,</bold></p><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><email>1110ekuzmina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6423-1789</contrib-id><name-alternatives><name xml:lang="en"><surname>Chelysheva</surname><given-names>E. Yu.</given-names></name><name xml:lang="ru"><surname>Челышева</surname><given-names>Е. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6253-3334</contrib-id><name-alternatives><name xml:lang="en"><surname>Biderman</surname><given-names>B. V.</given-names></name><name xml:lang="ru"><surname>Бидерман</surname><given-names>Б. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5393-0816</contrib-id><name-alternatives><name xml:lang="en"><surname>Shukhov</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Шухов</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8187-5639</contrib-id><name-alternatives><name xml:lang="en"><surname>Stepanova</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Степанова</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6440-0500</contrib-id><name-alternatives><name xml:lang="en"><surname>Gadzhieva</surname><given-names>E. P.</given-names></name><name xml:lang="ru"><surname>Гаджиева</surname><given-names>Э. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Moskvorech’e St., Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, ул. Москворечье, 1</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5730-2593</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrova</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Петрова</surname><given-names>А. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9178-1428</contrib-id><name-alternatives><name xml:lang="en"><surname>Nemchenko</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Немченко</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3123-8316</contrib-id><name-alternatives><name xml:lang="en"><surname>Bykova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Быкова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9984-389X</contrib-id><name-alternatives><name xml:lang="en"><surname>Guryanova</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Гурьянова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0261-5941</contrib-id><name-alternatives><name xml:lang="en"><surname>Kokhno</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Кохно</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9947-2371</contrib-id><name-alternatives><name xml:lang="en"><surname>Turkina</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Туркина</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9463-9187</contrib-id><name-alternatives><name xml:lang="en"><surname>Sudarikov</surname><given-names>A. B.</given-names></name><name xml:lang="ru"><surname>Судариков</surname><given-names>А. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>125167 Москва, Новый Зыковский пр-д, 4 </p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center for Hematology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр гематологии» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Research Centre for Medical Genetics</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Медико-генетический научный центр им. акад. Н.П. Бочкова»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-10" publication-format="electronic"><day>10</day><month>12</month><year>2024</year></pub-date><volume>19</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>150</fpage><lpage>163</lpage><history><date date-type="received" iso-8601-date="2024-12-10"><day>10</day><month>12</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-12-10"><day>10</day><month>12</month><year>2024</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncohematology.abvpress.ru/ongm/article/view/983">https://oncohematology.abvpress.ru/ongm/article/view/983</self-uri><abstract xml:lang="en"><p><bold>Background</bold>. Somatic mutations in chronic myeloid leukemia (CML) patients are considered as possible factors for the failure of tyrosine kinase inhibitor (TKI) therapy, and the study of their characteristics is of interest.</p><p><bold>Aim</bold>. To evaluate the genetic profile of blood cells in CML patients using nextgeneration sequencing.</p><p><bold>Materials and methods</bold>. Retrospective study was conducted in two groups of patients: group 1 with TKI therapy failure (n = 29) and group 2 with optimal response to TKI therapy (n = 29). The target panel for nextgeneration sequencing included 19 genes: <italic>ASXL1, DNMT3A, FLT3, IDH1, IDH2, NPM1, RUNX1, SF3B1, SRSF2, TET2, TP53, U2AF2, KIT, WT1, CEBPA, ZRSR2, JAK2, GATA2, ABL1</italic>. In order to assess clonal evolution, additional samples were examined at a retrospective point in time closest to the primary CML diagnosis.</p><p><bold>Results</bold>. In group 1, mutations in 8 genes (including <italic>ABL1</italic>) were identified in 19/29 (66 %) patients. Excluding <italic>ABL1</italic>, mutations were identified in 15 (52 %) patients. In 9 (31 %) patients, &gt;1 mutation (2 to 4) was detected. Frequency of genes mutations in group 1: <italic>ABL1</italic> in 11 (38 %) patients, <italic>ASXL1</italic> in 9 (31 %) patients, <italic>DNMT3A</italic> in 3 (10 %) patients, <italic>RUNX1</italic>, <italic>CEBPA</italic> in 2 patients (7 %), <italic>WT1, NPM1, TET2</italic> in 1 patient (3.5 %). In 7 (24 %) patients there was a combination of mutations in <italic>ABL1</italic> gene and in another gene; the most frequent combination of mutations in genes: <italic>ABL1</italic> + <italic>ASXL1</italic> – in 4 patients (14 %). The dynamics of mutant clones in group 1 was evaluated in 21/29 (72 %) patients. In 10/21 (48 %) patients somatic mutations in genes appeared during CML treatment, in 14/21 (67 %) patients previously detected mutations persisted, in 1 (5 %) the mutation disappeared. In group 2, somatic mutations were detected in 2/29 (7 %) patients: in <italic>DNMT3A</italic> (ariant Allele Frequency (AF) 5 %) and TP53 (AF 9 %) genes – these mutations were not detected at the diagnosis of CML. In one patient <italic>ASXL1</italic> mutation (AF 5 %) was detected only at diagnosis, and was not detected subsequently with optimal response to therapy.</p><p><bold>Conclusion</bold>. The presence of somatic gene mutations is associated with a resistant CML course: somatic mutations in genes other than ABL1 were more common in CML patients with TKI therapy failure than in those with optimal response: 52 % vs. 7 % (p ≤0.05). Mutations in <italic>ASXL1</italic> (31 %) and <italic>DNMT3A</italic> (10 %) were the most frequently detected. The frequency of ABL1 and <italic>ASXL1</italic> mutations combination amounted to 14 %. uring followup, somatic mutations predominantly persisted or appeared over time in CML patients with TKI therapy resistance.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Соматические мутации в различных генах у больных хроническим миелолейкозом (МЛ) рассматриваются как возможные факторы неудачи терапии ингибиторами тирозинкиназ (ИТ), поэтому изучение их особенностей представляет интерес.</p><p><bold>Цель исследования</bold> – оценить молекулярно-генетический профиль клеток крови у больных МЛ, используя метод высокопроизводительного секвенирования.</p><p><bold>Материалы и методы</bold>. Ретроспективное исследование проводилось в 2 группах пациентов: группа 1 с неудачей терапии ИТ (n = 29) и группа 2 с оптимальным ответом на лечение ИТ (n = 29). Таргетная панель для высокопроизводительного секвенирования включала 19 генов: <italic>ASXL1</italic>, <italic>DNMT3A, FLT3, IDH1, IDH2, NPM1, RUNX1, SF3B1, SRSF2, TET2, TP53, U2AF2, KIT, WT1, CEBPA, ZRSR2, JAK2, GATA2, ABL1</italic>. Для оценки динамики клонов исследовали дополнительные биообразцы в ретроспективной точке, в наиболее приближенное к этапу первичной диагностики МЛ время.</p><p><bold>Результаты</bold>. В группе 1 у 19/29 (66 %) пациентов выявлены мутации в 8 генах (включая <italic>ABL1).</italic> Исключая ABL1, мутации обнаружены у 15 (52 %) пациентов. 9 (31 %) пациентов выявлялось &gt;1 мутации (от 2 до 4). Частота встречаемости мутаций в генах в группе 1: <italic>ABL1</italic> – у 11 (38 %) пациентов, <italic>ASXL1</italic> – у 9 (31 %), <italic>DNMT3A</italic> – у 3 (10 %), <italic>RUNX1,</italic> <italic>CEBPA</italic> – по 2 (7 %) пациента, <italic>WT1</italic>, <italic>NPM1, TET2</italic> – по 1 (3,5 %) пациенту. 7 (24 %) пациентов встречалось сочетание мутаций в гене <italic>ABL1</italic> и в другом гене; наиболее частое сочетание мутаций в генах: <italic>ABL1</italic> + <italic>ASXL1</italic> – у 4 (14 %) пациентов. Динамика мутантных клонов в группе 1 оценена у 21/29 (72 %) пациентов. 10/21 (48 %) больных соматические мутации в генах появлялись на фоне лечения МЛ, у 14/21 (67 %) ранее выявленные мутации сохранялись, у 1 (5 %) отмечено исчезновение мутации. В группе 2 соматические мутации выявлены у 2/29 (7 %) пациентов: в генах DNMT3A (аллельная нагрузка клона (ariant Allele Frequency, AF) 5 %) и <italic>TP53</italic> (AF 9 %) на этапе диагностики МЛ эти мутации не выявлялись. 1 пациента мутация в гене <italic>ASXL1</italic> (AF 5 %) выявлена только в ретроспективной точке, на этапе диагностики, и не определялась в последующем, при оптимальном ответе на терапию.</p><p><bold>Заключение</bold>. Наличие соматических мутаций ассоциировано с резистентным течением МЛ: соматические мутации в различных генах, помимо <italic>ABL1</italic>, чаще встречались у больных МЛ с неудачей терапии ИТ, чем у больных с оптимальным ответом: 52 % против 7 % (р ≤0,05). Наиболее часто выявлялись мутации в генах <italic>ASXL1</italic> (31 %) и <italic>DNMT3A</italic> (10 %). Частота сочетания мутаций <italic>ABL1</italic> и <italic>ASXL1</italic> составила 14 %. ри наблюдении в динамике соматические мутации преимущественно персистировали или появлялись со временем у больных МЛ с резистентностью к терапии ИТ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>chronic myeloid leukemia</kwd><kwd>somatic mutation</kwd><kwd>resistance</kwd><kwd>therapy failure</kwd><kwd>next-generation sequencing</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>хронический миелолейкоз</kwd><kwd>соматическая мутация</kwd><kwd>резистентность</kwd><kwd>неудача терапии</kwd><kwd>высокопроизводительное секвенирование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ren R. Mechanisms of BCRABL in the pathogenesis of chronic myelogenous leukaemia. Nat Rev Cancer 2005;5(3):172–83. DOI: 10.1038/nrc1567</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Quintá SCardama A., Cortes J. 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