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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">Advances in Molecular Oncology</journal-id><journal-title-group><journal-title xml:lang="en">Advances in Molecular Oncology</journal-title><trans-title-group xml:lang="ru"><trans-title>Успехи молекулярной онкологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-805X</issn><issn publication-format="electronic">2413-3787</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">285</article-id><article-id pub-id-type="doi">10.17650/2313-805X-2020-7-3-37-47</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Analysis of genetic aberrations in pediatric high-grade gliomas</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ генетических аберраций в глиомах высокой степени злокачественности у детей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2015-5790</contrib-id><name-alternatives><name xml:lang="en"><surname>Zaytseva</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Зайцева</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p></bio><bio xml:lang="ru"><p><bold>Маргарита Алексеевна Зайцева</bold></p><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p></bio><email>astice@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5461-7442</contrib-id><name-alternatives><name xml:lang="en"><surname>Shekhtman</surname><given-names>A. P.</given-names></name><name xml:lang="ru"><surname>Шехтман</surname><given-names>А. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p></bio><bio xml:lang="ru"><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7750-5216</contrib-id><name-alternatives><name xml:lang="en"><surname>Papusha</surname><given-names>L. I.</given-names></name><name xml:lang="ru"><surname>Папуша</surname><given-names>Л. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p></bio><bio xml:lang="ru"><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2977-665X</contrib-id><name-alternatives><name xml:lang="en"><surname>Valiakhmetova</surname><given-names>E. F.</given-names></name><name xml:lang="ru"><surname>Валиахметова</surname><given-names>Э. Ф.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p><p>16, 4 th Tverskaya-Yamskaya St., Moscow 125047, Russia</p></bio><bio xml:lang="ru"><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p><p>Россия, 125047 Москва, ул. 4‑я Тверская-Ямская, 16</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3007-3772</contrib-id><name-alternatives><name xml:lang="en"><surname>Yasko</surname><given-names>L. A.</given-names></name><name xml:lang="ru"><surname>Ясько</surname><given-names>Л. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p></bio><bio xml:lang="ru"><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1308-8622</contrib-id><name-alternatives><name xml:lang="en"><surname>Druy</surname><given-names>A. E.</given-names></name><name xml:lang="ru"><surname>Друй</surname><given-names>А. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samory Mashela St., GSP-7, Moscow 117997, Russia</p><p>22a Karla Marksa St., Yekaterinburg 620026, Russia</p></bio><bio xml:lang="ru"><p>Россия, 117997 Москва, ГСП-7, ул. Саморы Машела, 1</p><p>Россия, 620026 Екатеринбург, ул. Карла Маркса, 22а</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">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Burdenko National Medical Research Center for Neurosurgery, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАУ «Национальный медицинский исследовательский центр нейрохирургии им. акад. Н. Н. Бурденко» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Research Institute of Medical Cell Technologies</institution></aff><aff><institution xml:lang="ru">ГАУЗ СО «Институт медицинских клеточных технологий»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2020</year></pub-date><volume>7</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>37</fpage><lpage>47</lpage><history><date date-type="received" iso-8601-date="2020-11-23"><day>23</day><month>11</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2020-11-23"><day>23</day><month>11</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Zaytseva M.A., Shekhtman A.P., Papusha L.I., Valiakhmetova E.F., Yasko L.A., Druy A.E.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Зайцева М.А., Шехтман А.П., Папуша Л.И., Валиахметова Э.Ф., Ясько Л.А., Друй А.Е.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Zaytseva M.A., Shekhtman A.P., Papusha L.I., Valiakhmetova E.F., Yasko L.A., Druy A.E.</copyright-holder><copyright-holder xml:lang="ru">Зайцева М.А., Шехтман А.П., Папуша Л.И., Валиахметова Э.Ф., Ясько Л.А., Друй А.Е.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://umo.abvpress.ru/jour/article/view/285">https://umo.abvpress.ru/jour/article/view/285</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> High-grade gliomas are characterized by a wide range of genetic abnormalities. The heterogeneous genomic landscape of pediatric high-grade gliomas allows identifying distinct subgroups of the disease in children and young adults. Most importantly, these subgroups differ by clinical course and prognosis, as well as treatment response to standard therapy.</p><p><bold>Objective:</bold> to assess the profile of molecular genetic markers of high-grade gliomas in children.</p><p><bold>Materials and methods.</bold> In the current study, we examine the frequency of H3F3A, Hist1H3B, BRAF, IDH1 / 2 mutations, the copy number alterations of CDKN2A / 2B genes and the expression of ETV6‑NTRK3 fusion gene in a cohort of 53 pediatric high-grade gliomas.</p><p><bold>Results.</bold> Driver mutations and CDKN2A / 2B deletions were observed in 24 (45 %) and 15 (28 %) of 53 tumors, respectively. Overall, the studied high-grade gliomas harbored 41 genetic aberrations including 24 (58.5 %) somatic missense mutations, 1 (2.4 %) genetic variant of unknown clinical significance, 1 (2.4 %) oncogenic fusion gene and 15 (36.6 %) deletions of the tumor suppressor genes.</p><p><bold>Conclusion.</bold> These findings point to the importance of molecular profiling of tumors for the optimal clinical care and development of new approaches to treatment aimed at molecular targets for personalized anticancer therapies.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Высокозлокачественные глиомы характеризуются широким спектром генетических аномалий. Различия в молекулярно-генетическом профиле позволяют выделить несколько основных подгрупп глиом высокой степени злокачественности у детей и подростков, которые различаются как по клиническому течению заболевания, его прогнозу, так и по ответу на стандартные схемы терапии.</p><p><bold>Цель исследования</bold> – оценить профиль молекулярно-генетических маркеров глиом высокой степени злокачественности у детей.</p><p><bold>Материалы и методы.</bold> В исследование были включены 53 образца глиом высокой степени злокачественности у детей. Были проанализированы мутации в генах H3F3A, Hist1H3B, BRAF, IDH1/2, а также аномалии числа копий генов CDKN2A/2B и экспрессия химерного гена ETV6‑NTRK3.</p><p><bold>Результаты.</bold> В 24 (45 %) из 53 проанализированных случаев выявлена драйверная мутация в ткани опухоли, в 15 (28 %) – потеря копии CDKN2A / 2B, которая может выступать как второе мутационное событие. В общей сложности обнаружена 41 генетическая аберрация, из них 24 (58,5 %) составляют соматические миссенс-мутации, 1 (2,4 %) – вариант с неясным клиническим значением, 1 (2,4 %) – химерный онкоген и 15 (36,6 %) – делеции генов-онкосупрессоров.</p><p><bold>Заключение.</bold> Полученные данные свидетельствуют о важности углубленного изучения генетического профиля опухоли для определения тактики ведения пациентов, а также подбора персонализированной терапии для больных злокачественными глиомами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lioblastoma</kwd><kwd>anaplastic astrocytoma</kwd><kwd>anaplastic pleomorphic xanthoastrocytoma</kwd><kwd>diffuse midline glioma</kwd><kwd>H3 K28M</kwd><kwd>BRAF V600E</kwd><kwd>CDKN2A / 2B</kwd><kwd>ETV6‑NTRK3</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>глиобластома</kwd><kwd>анапластическая астроцитома</kwd><kwd>анапластическая плеоморфная ксантоастроцитома</kwd><kwd>диффузная срединная глиома</kwd><kwd>H3 K28M</kwd><kwd>BRAF V600E</kwd><kwd>CDKN2A / 2B</kwd><kwd>ETV6‑NTRK3</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Louis D.N., Perry A., Reifenberger G. et al. 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