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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">bloodjour</journal-id><journal-title-group><journal-title xml:lang="ru">Гематология и трансфузиология</journal-title><trans-title-group xml:lang="en"><trans-title>Russian journal of hematology and transfusiology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0234-5730</issn><issn pub-type="epub">2411-3042</issn><publisher><publisher-name>ООО Издательский дом «Практика»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25837/HAT.2018.80..1..002</article-id><article-id custom-type="elpub" pub-id-type="custom">bloodjour-83</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>РОЛЬ МУТАЦИЙ ГЕНА IKZF1 ПРИ B-КЛЕТОЧНОМ ОСТРОМ ЛИМФОБЛАСТНОМ ЛЕЙКОЗЕ У ВЗРОСЛЫХ БОЛЬНЫХ, ПОЛУЧАЮЩИХ ЛЕЧЕНИЕ ПО ПРОТОКОЛАМ РОССИЙСКОГО МНОГОЦЕНТРОВОГО ИССЛЕДОВАНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>THE ROLE OF IKZF1 DELETIONS IN ADULT PH-NEGATIVE AND PH-POSITIVE B-CELL ACUTE LYMPHOBLASTIC LEUKEMIA PATIENTS TREATED IN RUSSIAN ACUTE LYMPHOBLASTIC LEUKEMIA STUDY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2763-5391</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Басхаева</surname><given-names>Г. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Baskhaeva</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">rara4v1s@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6177-3566</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Паровичникова</surname><given-names>E. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Parovichnikova</surname><given-names>E. N.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6253-3334</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бидерман</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Biderman</surname><given-names>B. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9969-8482</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гаврилина</surname><given-names>О. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilina</surname><given-names>O. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5932-0285</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Давыдова</surname><given-names>Ю. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Davidova</surname><given-names>Yu. O.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9431-8316</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дроков</surname><given-names>M. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Drokov</surname><given-names>M. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2947-6398</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зарубина</surname><given-names>К. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zarubina</surname><given-names>K. I.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8337-2242</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лукьянова</surname><given-names>И. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukyanova</surname><given-names>I. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4827-8947</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Троицкая</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Troitskaya</surname><given-names>V. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1494-7978</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соколов</surname><given-names>A. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>A. N.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1571-3161</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пискунова</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Piskunova</surname><given-names>I. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8187-5639</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанова</surname><given-names>Е. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanova</surname><given-names>E. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6220-8868</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>S. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9463-9187</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Судариков</surname><given-names>A. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sudarikov</surname><given-names>A. B.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8490-6061</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гальцева</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Galtseva</surname><given-names>I. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3273-6640</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Обухова</surname><given-names>T. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Obukhova</surname><given-names>T. N.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8188-5557</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савченко</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Savchenko</surname><given-names>V. G.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр гематологии» Министерства здравоохранения России, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Center for Hematology, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>17</day><month>04</month><year>2019</year></pub-date><volume>63</volume><issue>1</issue><fpage>16</fpage><lpage>30</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Басхаева Г.A., Паровичникова E.Н., Бидерман Б.В., Гаврилина О.A., Давыдова Ю.О., Дроков M.Ю., Зарубина К.И., Лукьянова И.A., Троицкая В.В., Соколов A.Н., Пискунова И.С., Степанова Е.A., Смирнова С.Ю., Судариков A.Б., Гальцева И.В., Обухова T.Н., Савченко В.Г., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Басхаева Г.A., Паровичникова E.Н., Бидерман Б.В., Гаврилина О.A., Давыдова Ю.О., Дроков M.Ю., Зарубина К.И., Лукьянова И.A., Троицкая В.В., Соколов A.Н., Пискунова И.С., Степанова Е.A., Смирнова С.Ю., Судариков A.Б., Гальцева И.В., Обухова T.Н., Савченко В.Г.</copyright-holder><copyright-holder xml:lang="en">Baskhaeva G.A., Parovichnikova E.N., Biderman B.V., Gavrilina O.A., Davidova Y.O., Drokov M.Y., Zarubina K.I., Lukyanova I.A., Troitskaya V.V., Sokolov A.N., Piskunova I.S., Stepanova E.A., Smirnova S.A., Sudarikov A.B., Galtseva I.V., Obukhova T.N., Savchenko V.G.</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://www.htjournal.ru/jour/article/view/83">https://www.htjournal.ru/jour/article/view/83</self-uri><abstract><p>Цель исследования — изучить роль мутаций гена IKZF1 при B-клеточном остром лимфобластном лейкозе (ВОЛЛ) у взрослых больных, получающих лечение по протоколам российского многоцентрового исследования. В исследование были включены 67 взрослых больных, из них 49 больных Ph-негативным и 18 — Phпозитивным В-ОЛЛ. В первой группе лечение проводили по протоколам ОЛЛ-2009, ОЛЛ-2016, во второй — по протоколам ОЛЛ-2009 и ОЛЛ-2012 в сочетании с ингибиторами тирозинкиназ (ИТК). Молекулярный анализ внутригенных делеций гена IKZF1 проводили методом мультиплексной флюоресцентной полимеразной цепной реакции. Внутригенные делеции IKZF1 были обнаружены у 10 (56%) больных Ph-позитивным В-ОЛЛ, что было статистически значимо чаще, чем при Ph-негативном В-ОЛЛ, где мутации этого гена были диагностированы у 9 (18%) больных (p = 0,0074). При анализе демографических и клинико-лабораторных показателей (возраст, пол, начальный лейкоцитоз более 30 × 109/л, уровень ЛДГ более 750 ед/л, спленомегалия, нейролейкемия) в представленных группах корреляции с наличием делеции гена IKZF1 не выявлено. У 44% больных Ph-негативным В-ОЛЛ с делецией IKZF1 в дебюте заболевания наблюдалась коэкспрессия двух миелоидных антигенов: CD13 и СD33 на бластных клетках, в то время как у больных без делеции оба маркера одновременно были выявлены только у 2,5% больных (p = 0,0027). В анализируемых группах больных различий в долгосрочных результатах терапии в зависимости от наличия мутаций IKZF1 не обнаружено. Однако у больных Ph-негативным В-ОЛЛ с мутациями гена IKZF1 наблюдалась персистенция минимальной остаточной болезни (МОБ) на 2-й и 4-й месяц лечения, а также ее более высокие значения, чем у больных без мутаций. Таким образом, внутригенные делеции IKZF1 не влияют на долгосрочные результаты терапии у больных Phнегативным и Ph-позитивным В-ОЛЛ при применении протоколов российского многоцентрового исследования. Показано, что при наличии мутаций у больных Phнегативным В-ОЛЛ наблюдается замедленный клиренс опухоли.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to investigate the role of IKZF1 deletions in adult patients with Ph-negative (Ph–) and Ph-positive (Ph+) B-cell acute lymphoblastic leukemia (ALL) who participated in the Russian Acute Lymphoblastic Leukemia (RALL) multicenter study. Our study included 67 patients with newly diagnosed B-cell ALL (49 Ph– and 18 Ph+ cases). Patients with Ph– B-cell ALL were treated according to RALL-2009 and RALL-2016 protocols and were followed up for a median of 18.1 months (range 1.5–93.4 months). Patients with Ph+ B-cell ALL were treated according to RALL- 2009 and RALL-2012 protocols with addition of tyrosine kinase inhibitors and were followed up for a median of 21.2 months (range 3.53–91.77 months). Intragenic deletions of IKZF1 were detected using breakpoint-specific fluorescent multiplex polymerase chain reaction. They were more frequently found in patients with Ph+ ALL (n = 10, 56%) than in patients with Ph– ALL (n = 9, 18%; p = 0.0074). No statistically significant association between IKZF1 deletions and age, sex, initial WCC of over 30 × 109/L, LDH above 750 U/mL, splenomegaly or neuroleukemia was observed. Notably, an expression of both myeloid antigens (MyAg) CD13 and СD33 was detected in almost half (n = 4,44%) of the Ph– ALL patients with IKZF1 deletions compared to only 1 patient (2.5%) without IKZF1 deletions (p = 0.0027). The presence of IKZF1 mutations was associated with persistence of minimal residual disease at 2 and 4 months of treatment, with higher leukemic cell counts; however, there seemed to be no observable differences in the long-term results of therapy regardless of whether or not IKZF1 mutations were present. Thus IKZF1 mutations in our study did not seem to be prognostically valuable for either Ph+ B-cell ALL or Ph– B-cell ALL, although they were shown to be associated with a delayed tumor clearance in patients with Ph– B-cell ALL.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>B-клеточный острый лимфобластный лейкоз</kwd><kwd>Ph-позитивный В-ОЛЛ</kwd><kwd>Ph-негативный В-ОЛЛ</kwd><kwd>взрослые</kwd><kwd>делеции гена IKZF1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>B-cell precursor acute lymphoblastic leukemia</kwd><kwd>Ph-positive В-ALL</kwd><kwd>Ph-negative В-ALL</kwd><kwd>adults</kwd><kwd>IKZF1gene deletion</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Moorman AV. New and emerging prognostic and predictive genetic biomarkers in B-cell precursor acute lymphoblastic leukemia. 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