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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">10.35754/0234-5730-2020-65-3-263-280</article-id><article-id custom-type="elpub" pub-id-type="custom">bloodjour-230</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>Частота сочетания и кинетика уровня транскрипта BCR-ABL1 и аллельной нагрузки мутаций JAK2V617F+  и CALR тип-1, -2 у больных хроническим миелолейкозом</article-title><trans-title-group xml:lang="en"><trans-title>Frequency of coexistence and kinetics of the BCR-ABL1 transcript level and allele burden of JAK2V617F and CALR Type 1, 2 gene mutations in patients with chronic myeloid leukemia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2530-808X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллаев</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullaev</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдуллаев Адхамжон Одилович, кандидат медицинских наук, старший научный сотрудник лаборатории молекулярной гематологии</p></bio><bio xml:lang="en"><p>Adhamjon O. Abdullaev, Cand. Sci. (Med.), Senior Researcher, Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">adham_abdullaev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8187-5639</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Степанова Елена Александровна, научный сотрудник лаборатории молекулярной гематологии</p></bio><bio xml:lang="en"><p>Elena A. Stepanova, Researcher, Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">stepanova173@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/0000-0003-1454-3471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарик</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarik</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макарик Татьяна Викторовна, кандидат биологических наук, старший научный сотрудник лаборатории молекулярной гематологии</p></bio><bio xml:lang="en"><p>Tatyana V. Makarik, Cand. Sci. (Biol.), Senior Researcher, Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">makarik_71@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3914-8611</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никулина</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikulina</surname><given-names>E. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никулина Елена Евгеньевна, научный сотрудник лаборатории молекулярной гематологии</p></bio><bio xml:lang="en"><p>Elena Y. Nikulina, Researcher, Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">lenysh2007@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2698-7168</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Треглазова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Treglazova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Треглазова Светлана Анатольевна, научный сотрудник лаборатории молекулярной гематологии </p><p> </p><p> </p></bio><bio xml:lang="en"><p>Svetlana A. Treglazova, Researcher, Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">svetik997@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3906-9171</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горячева</surname><given-names>С. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryacheva</surname><given-names>S. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горячева Светлана Рудольфовна, кандидат медицинских наук, врач-гематолог  консультативного гематологического отделения с дневным стационаром по проведению интенсивной высокодозной химиотерапии</p><p> </p></bio><bio xml:lang="en"><p>Svetlana R. Goryacheva, Cand. Sci. (Med.), Hematologist, Advisory Hematology Outpatient Department for Intensive High-Dose Chemotherapy</p></bio><email xlink:type="simple">goryacheva.s@blood.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5393-0816</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шухов</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shukhov</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шухов Олег Александрович, кандидат медицинских наук, старший научный сотрудник научно-консультативного отделения химиотерапии миелопролиферативных заболеваний</p></bio><bio xml:lang="en"><p>Oleg A. Shukhov, Cand. Sci. (Med.), Senior Researcher, Scientifi c Advisory Department of Chemotherapy of Myeloproliferative Diseases</p></bio><email xlink:type="simple">shuhov@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3123-8316</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Быкова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bykova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Быкова Анастасия Витальевна, врач-гематолог  научно-консультативного отделения химиотерапии миелопролиферативных заболеваний</p></bio><bio xml:lang="en"><p>Anastasiya V. Bykova, Hematologist, Scientifi c Advisory Department of Chemotherapy of Myeloproliferative Diseases</p></bio><email xlink:type="simple">ivlutaya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2197-7358</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трацевская</surname><given-names>Ж. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tratsevskaya</surname><given-names>Z. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трацевская Жанна Викторовна, врач-патологоанатом  патолого-анатомического отделения</p></bio><bio xml:lang="en"><p>Zhanna V. Tratsevskaya, Pathologist, Pathology Department</p></bio><email xlink:type="simple">tratsevskaya.zh@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2119-3775</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меликян</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Melikyan</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меликян Анаит Левоновна, доктор медицинских наук, заведующая отделением стандартизации методов лечения</p></bio><bio xml:lang="en"><p>Anait L. Melikyan, Dr. Sci. (Med.), Head of the Department of Standardization of Methods of Therapy</p></bio><email xlink:type="simple">anoblood@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1082-8659</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковригина</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovrigina</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковригина Алла Михайловна, доктор биологических наук, заведующая патолого-анатомическим отделением</p></bio><bio xml:lang="en"><p>Alla M. Kovrigina, Dr. Sci. (Biol.), Head of the Pathology Department</p></bio><email xlink:type="simple">kovrigina.alla@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/0000-0001-9947-2371</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Туркина</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Turkina</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Туркина Анна Григорьевна, доктор медицинских наук, профессор, заведующая научно-консультативным отделением химиотерапии миелопроли- феративных заболеваний отделением</p></bio><bio xml:lang="en"><p>Anna G. Turkina, Dr. Sci. (Med.), Prof., Head of the Scientifi c Advisory Department of Chemotherapy of Myeloproliferative Diseases</p></bio><email xlink:type="simple">turkianna@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9463-9187</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Судариков</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Sudarikov</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Судариков Андрей Борисович, доктор биологических наук, заведующий лабораторией молекулярной гематологии</p></bio><bio xml:lang="en"><p>Andrey B. Sudarikov, Dr. Sci. (Biol.), Head of the Laboratory of Molecular Hematology</p></bio><email xlink:type="simple">dusha@blood.ru</email><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 Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Center for Hematology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>20</day><month>09</month><year>2020</year></pub-date><volume>65</volume><issue>3</issue><fpage>253</fpage><lpage>280</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абдуллаев А.О., Степанова Е.А., Макарик Т.В., Никулина Е.Е., Треглазова С.А., Горячева С.Р., Шухов О.А., Быкова А.В., Трацевская Ж.В., Меликян А.Л., Ковригина А.М., Туркина А.Г., Судариков А.Б., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Абдуллаев А.О., Степанова Е.А., Макарик Т.В., Никулина Е.Е., Треглазова С.А., Горячева С.Р., Шухов О.А., Быкова А.В., Трацевская Ж.В., Меликян А.Л., Ковригина А.М., Туркина А.Г., Судариков А.Б.</copyright-holder><copyright-holder xml:lang="en">Abdullaev A.O., Stepanova E.A., Makarik T.V., Nikulina E.Y., Treglazova S.A., Goryacheva S.R., Shukhov O.A., Bykova A.V., Tratsevskaya Z.V., Melikyan A.L., Kovrigina A.M., Turkina A.G., Sudarikov A.B.</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/230">https://www.htjournal.ru/jour/article/view/230</self-uri><abstract><sec><title>Введение</title><p>Введение. Патогенез миелопролиферативных новообразований ассоциирован с химерным геном BCR-ABL1 или одной из «драйверных мутаций» генов JAK2, MPL и CALR (Calreticulin). Однако в классификации Всемирной организации здравоохранения не указаны миелоидные новообразования с более чем одной «драйверной» генетической аномалией.</p><p> Цель — поиск мутаций в генах JAK2, MPL и CALR у больных BCR-ABL1-позитивным хроническим миелоидным лейкозом (ХМЛ), а также оценка кинетики уровня найденных мутаций при терапии ингибиторами тирозинкиназ (ИТК). Материалы и методы. В исследование включены препараты мРНК и ДНК клеток крови и костного мозга 567 больных ХМЛ, проходивших периодический мониторинг уровня транскрипта BCR-ABL1 с 2012 по 2019 гг. Уровень транскрипта BCR-ABL1 был определен посредством высокочувствительной количественной полимеразной цепной реакции в реальном времени. Мутации JAK2V617F и MPLW515L/K были выявлены с использованием количественной аллель-специфической полимеразной цепной реакции в реальном времени. Мутации гена CALR были исследованы фрагментным анализом с последующим секвенированием по Сэнгеру.</p></sec><sec><title>Результаты</title><p>Результаты. Сочетание мутаций генов BCR-ABL1, JAK2и CALR среди больных ХМЛ, получавших препараты ИТК, составила 1,23 % (7/567). Из них в 0,88 % (5/567) случаев было выявлено сочетание BCR-ABL1 с JAK2V617F и в 0,35 % (2/567) случаев — сочетание BCR-ABL1 с мутациями гена CALR. При терапии препаратами ИТК в 5 из 7 случаев уровень BCR-ABL1 достиг глубокого молекулярного ответа (МО). У 4 из этих больных была прекращена терапия, и у них по настоящее время сохраняется молекулярная ремиссия. В оставшихся 2 случаях не удалось достичь большого МО, несмотря на применение препаратов ИТК второго поколения.</p></sec><sec><title>Заключение</title><p> Заключение. Сочетание химерного гена BCR-ABL1 с мутациями генов Jak2 или CALR является редким событием и составило 0,88 и 0,35 % случаев, соответственно. Сочетание BCR-ABL1 с Jak2V617F и мутациями гена CALR не всегда препятствует достижению большого МО.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The pathogenesis of myeloproliferative neoplasms is associated with the chimeric gene BCR-ABL1 or with one of the driver mutations in the genes JAK2, MPL and CALR (Calreticulin). However, the classifi cation of the World Health Organization lists no myeloid neoplasms with more than one driver genetic abnormality.</p></sec><sec><title>Aim</title><p> Aim. To search for mutations in the genes JAK2, MPL and CALR in patients with BCR-ABL1-positive chronic myeloid leukemia (CML), as well as to evaluate the kinetics of the discovered mutations during tyrosine kinase inhibitor (TKI) therapy.</p></sec><sec><title>Materials and methods</title><p> Materials and methods. mRNA and DNA samples isolated from blood and bone marrow cells of 567 CML patients, who underwent periodic monitoring of the BCR-ABL1 transcript level over the 2012–2019 period were included in the study The BCR-ABL1 transcript level was determined using a highly sensitive quantitative real-time polymerase chain reaction. The mutations JAK2V617F and MPLW515L/K were detected using real-time quantitative allele-specifi c polymerase chain reaction. Mutations in the CALR gene were investigated using fragment analysis followed by Sanger sequencing.</p></sec><sec><title>Results</title><p> Results. The combination of the BCR-ABL1, JAK2 and CALR gene mutations among CML patients receiving TKIs was 1.23 % (7/567). Out of these, the combination of BCR-ABL1 with JAK2V617F and the combination of BCR-ABL1 with CALR gene mutations were detected in 0.88 % (5/567) and 0.35 % (2/567) of cases, respectively. During TKI therapy, in 5 out of 7 patients, the level of BCR-ABL1 reached major molecular response (MR). In 4 of these patients, the therapy was discontinued. These patients are currently in molecular remission. In the remaining 2 patients, major MR was not achieved, despite the use of second-generation TKI preparations.</p></sec><sec><title>Conclusions</title><p> Conclusions. The combination of the BCR-ABL1 chimeric gene with gene mutations Jak2 or CALR was a rare event and amounted to 0.88 and 0.35 % of cases, respectively. The combination of BCR-ABL1 with Jak2V617F and CALR mutations does not always impede the achievement of major MR.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>хронический миелоидный лейкоз</kwd><kwd>эссенциальная тромбоцитемия</kwd><kwd>первичный миелофиброз</kwd><kwd>BCR-ABL1</kwd><kwd>мутация JAK2V617F</kwd><kwd>CALR</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic myeloid leukemia</kwd><kwd>essential thrombocythemia</kwd><kwd>primary myelofi brosis</kwd><kwd>BCR-ABL1</kwd><kwd>JAK2V617F mutation</kwd><kwd>CALR</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">Swerdlow S.H., Campo E., Harris N.L., Jaffe E.S., Pileri S.A., Stein H. et al. (Eds): WHO Classifi cation of Tumours of Haematopoietic and Lymphoid Tissues (Revised 4th edition). 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