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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">920</article-id><article-id pub-id-type="doi">10.17650/1818-8346-2024-19-2-14-25</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NEW DIRECTIONS, DIAGNOSTIC OPPORTUNITIES, AND TREATMENT ADVANCES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НОВЫЕ НАПРАВЛЕНИЯ, ВОЗМОЖНОСТИ ДИАГНОСТИКИ И УСПЕХИ ЛЕЧЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Significance of immunophenotypic, cytogenetic, and molecular markers in adult patients with T-cell lymphoblastic leukemia</article-title><trans-title-group xml:lang="ru"><trans-title>Определение значения иммунофенотипических, цитогенетических и молекулярных маркеров у взрослых больных Т-клеточными лимфобластными лейкозами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4316-4833</contrib-id><name-alternatives><name xml:lang="en"><surname>Vasileva</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Васильева</surname><given-names>А. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Anastasia N. Vasileva.</p><p>4 Novyy Zykovskiy Proezd, Moscow 125167</p></bio><bio xml:lang="ru"><p>Васильева Анастасия Николаевна.</p><p>125167 Москва, Новый Зыковский пр-д, 4</p></bio><email>vasilnastia@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9969-8482</contrib-id><name-alternatives><name xml:lang="en"><surname>Aleshina</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Алешина</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/0000-0002-7968-1923</contrib-id><name-alternatives><name xml:lang="en"><surname>Kotova</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Котова</surname><given-names>Е. 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/0000-0002-6253-3334</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/0000-0003-1613-652X</contrib-id><name-alternatives><name xml:lang="en"><surname>Obukhova</surname><given-names>T. N.</given-names></name><name xml:lang="ru"><surname>Обухова</surname><given-names>Т. 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/0000-0002-8490-6066</contrib-id><name-alternatives><name xml:lang="en"><surname>Galtseva</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Гальцева</surname><given-names>И. 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/0000-0002-9877-0796</contrib-id><name-alternatives><name xml:lang="en"><surname>Dvirnyk</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Двирнык</surname><given-names>В. 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/0000-0002-1884-352X</contrib-id><name-alternatives><name xml:lang="en"><surname>Zakharko</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Захарько</surname><given-names>Е. И.</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 contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6177-3566</contrib-id><name-alternatives><name xml:lang="en"><surname>Parovichnikova</surname><given-names>E. N.</given-names></name><name xml:lang="ru"><surname>Паровичникова</surname><given-names>Е. 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-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><pub-date date-type="pub" iso-8601-date="2024-04-03" publication-format="electronic"><day>03</day><month>04</month><year>2024</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>14</fpage><lpage>25</lpage><history><date date-type="received" iso-8601-date="2024-01-23"><day>23</day><month>01</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-04-02"><day>02</day><month>04</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/920">https://oncohematology.abvpress.ru/ongm/article/view/920</self-uri><abstract xml:lang="en"><p><bold>Background. </bold>Current chemotherapy protocols for T-cell acute lymphoblastic leukemia (T-ALL) allow achieving a 5-year overall survival of 60–90 %, but relapsed and refractory forms remain incurable situations.</p><p><bold>Aim. </bold>To determine the significance of immunophenotypic, cytogenetic and molecular markers in adult T-ALL patients receiving therapy according to the ALL-2016 protocol.</p><p><bold>Materials and methods. </bold>From December 2016 to June 2022, 113 patients with primary T-ALL were included in the study. Cytogenetic study was performed in 104 (92 %) patients; anomalies in the <italic>IKZF1 </italic>and <italic>NOTCH1 </italic>genes were investigated in 43 (38 %) patients.</p><p><bold>Results. </bold>The worst prognosis was in patients with ETP and near-ETP variants of T-ALL (3-year disease-free survival was 54 % in ETP group, 33 % in near-ETP group <italic>vs </italic>TI/II – 79 %, TIII – 89 %, TIV – 75 %). In early T-ALL variants, abnormal karyotype was most common (ETP – 80.7 %, near-ETP – 60 %). Aberrations in <italic>NOTCH1 </italic>gene were found in 53 % of cases (in 23 out of 43 patients), and no mutations were found in <italic>IKZF1 </italic>gene in our study. In the group with no <italic>NOTCH1 </italic>abnormalities, the overall survival was significantly worse than in the group with abnormalities (<italic>NOTCH1</italic>– – 52 % <italic>vs NOTCH1+ </italic>–81 %; <italic>p </italic>= 0.05).</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>Современные протоколы программной комбинированной химиотерапии Т-клеточных острых лимфобластных лейкозов (Т-ОЛЛ) позволяют достичь 5-летней общей выживаемости 60–90 %, однако рецидивы и рефрактерные формы Т-ОЛЛ остаются некурабельными ситуациями.</p><p><bold>Цель исследования </bold>– определить прогностическое значение иммунофенотипических и молекулярных маркеров у взрослых больных Т-ОЛЛ, получающих терапию по протоколу ОЛЛ-2016.</p><p><bold>Материалы и методы. </bold>С декабря 2016 г. по июнь 2022 г. в исследование были включены 113 пациентов с впервые установленным диагнозом Т-ОЛЛ. У 104 (92 %) больных выполнено цитогенетическое исследование, у 43 (38 %) больных исследованы аномалии в генах <italic>IKZF1 </italic>и <italic>NOTCH1 </italic>методом фрагментного анализа.</p><p><bold>Результаты. </bold>Самый неблагоприятный прогноз Т-ОЛЛ был у больных с вариантами ETP (Т-ОЛЛ из ранних Т-клеточных предшественников) и near-ETP: 3-летняя безрецидивная выживаемость в группе ETP составила 54 %, near-ETP – 33 % против 79 % у больных с вариантом TI/II, 89 % – с TIII, 75 % – с TIV. при ранних вариантах Т-ОЛЛ наиболее часто встречается аномальный кариотип: ETP – 80,7 %, near-ETP – 60 %. в гене <italic>NOTCH1 </italic>встречались изменения в 53 % случаев (у 23 из 43 больных), в гене <italic>IKZF1 </italic>в нашем исследовании при Т-ОЛЛ мутации не обнаружены. В группе с отсутствием аномалий <italic>NOTCH1 </italic>общая выживаемость была статистически значимо ниже, чем в группе с аномалиями: 52 % против 81 % (<italic>p </italic>= 0,05).</p><p><bold>Заключение. </bold>Варианты Т-ОЛЛ ETP и near-ETP, отсутствие мутаций в гене <italic>NOTCH1 </italic>являются неблагоприятными факторами прогноза для больных Т-ОЛЛ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>acute lymphoblastic leukemia</kwd><kwd>minimal residual disease</kwd><kwd>cytogenetic anomalies</kwd><kwd>molecular profile</kwd><kwd><italic>NOTCH1</italic></kwd></kwd-group><kwd-group xml:lang="ru"><kwd>острый лимфобластный лейкоз</kwd><kwd>минимальная остаточная болезнь</kwd><kwd>цитогенетические аномалии</kwd><kwd>молекулярно-генетический профиль</kwd><kwd><italic>NOTCH1</italic></kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Coustan-Smith E., Mullighan C.G., Onciu M. et al. 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