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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2021.08.11-20</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-1958</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Спектр нарушений гена RB1 при ретинобластоме у российских пациентов</article-title><trans-title-group xml:lang="en"><trans-title>The spectrum of genetic changes in the RB1 gene in a group of Russian retinoblastoma patients</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseeva</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлова</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>V. M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бабенко</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Babenko</surname><given-names>O. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ушакова</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Ushakova</surname><given-names>T. L.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казубская</surname><given-names>Т. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazubskaya</surname><given-names>T. P.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чеснокова</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Chesnokova</surname><given-names>G. G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Танас</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tanas</surname><given-names>A. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Залетаев</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaletaev</surname><given-names>D. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стрельников</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Strelnikov</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">vstrel@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Медико-генетический научный центр имени академика Н.П. Бочкова»; ФГАОУ ВО Первый Московский государственный медицинский университет имени И.М. Сеченова Министерства здравоохранения Российской Федерации (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Centre for Medical Genetics; I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии имени Н.Н. Блохина» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Blokhin National Medical Research Center of Oncology оf the Ministry of Health of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБНУ «Медико-генетический научный центр имени академика Н.П. Бочкова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Centre for Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>23</day><month>11</month><year>2021</year></pub-date><volume>20</volume><issue>8</issue><fpage>11</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеева Е.А., Козлова В.М., Бабенко О.В., Ушакова Т.Л., Казубская Т.П., Чеснокова Г.Г., Танас А.С., Залетаев Д.В., Стрельников В.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Алексеева Е.А., Козлова В.М., Бабенко О.В., Ушакова Т.Л., Казубская Т.П., Чеснокова Г.Г., Танас А.С., Залетаев Д.В., Стрельников В.В.</copyright-holder><copyright-holder xml:lang="en">Alekseeva E.A., Kozlova V.M., Babenko O.V., Ushakova T.L., Kazubskaya T.P., Chesnokova G.G., Tanas A.S., Zaletaev D.V., Strelnikov V.V.</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.medgen-journal.ru/jour/article/view/1958">https://www.medgen-journal.ru/jour/article/view/1958</self-uri><abstract><p>Введение. Ретинобластома - злокачественная опухоль детского возраста, причиной которой является биаллельная инактивация гена RB1. Ранняя молекулярно-генетическая диагностика ретинобластомы необходима как для адекватного выбора алгоритма лечения пациента с такой опухолью, так и для медико-генетического консультирования семьи. Цель: охарактеризовать частоту и спектр мутаций в гене RB1 у российских больных с ретинобластомой. Методы. Исследование проведено на материале ДНК лимфоцитов крови, полученном от 492 больных с ретинобластомой. Скрининг точковых мутаций, малых инсерций/делеций в гене RВ1 осуществляли методом полупроводникового высокопроизводительного параллельного секвенирования. Исключение протяженных делеций в гене RВ1 проводили методом MLPA. Результаты. Исследовано 492 неродственных пациента с ретинобластомой, среди которых 38,2% (188/492) с билатеральной формой заболевания и 61,8% (304/492) - с унилатеральной. В группе больных с билатеральной формой ретинобластомы герминальная мутация обнаружена у 96,8% (182/188) пациентов, в группе больных с унилатеральной формой - у 16,4% (50/304). Суммарно в гене RB1 в исследованной группе пациентов обнаружено 339 мутаций: 232 - герминальных и 107 - соматических. Выявлен практически полный спектр молекулярных изменений, включающий нонсенс-мутации - 37,5% (127/339), миссенс-мутации - 5,3% (18/339), мутации, приводящие к сдвигу рамки считывания - 18,9% (64/339), мутации сайтов сплайсинга - 13,9% (47/339) и протяженные делеции - 24,5% (83/339). Выводы. Применение глубокого высокопроизводительного параллельного секвенирования и метода MLPA позволяет эффективно выявлять молекулярно-генетические изменения в гене RB1. Типы мутаций, обнаруженные в исследованной группе, их частота и распределение совпадают с результатами исследователей из других стран.</p></abstract><trans-abstract xml:lang="en"><p>Background. Retinoblastoma is a childhood malignant tumor caused by biallelic inactivation of the RB1 gene. Early molecular genetic diagnosis of retinoblastoma is necessary both for an adequate choice of an algorithm for treating a patient, and for competent medical genetic counseling of the family Objective. To establish the frequency and spectrum of mutations in the RB1 gene in the group of patients with retinoblastoma. Methods. The study was carried out on the DNA of blood lymphocytes from 492 patients with retinoblastoma. Screening of point mutations, small insertions/deletions in the RB1 gene was performed by semiconductor high-throughput parallel sequencing. Exclusion of gross deletions in the RB1 gene was performed by MLPA. Results. 492 unrelated patients with retinoblastoma were studied, including 38.2% (188/492) with bilateral form and 61.8% (304/492) with unilateral form. In the group of patients with bilateral retinoblastoma, germline mutation was found in 96.8% (182/188) patients, and in the group of unilateral patients, in 16.4% (50/304). In total, the RB1 gene in the studied group of patients 339 mutations were found, 232 germline and 107 somatic. An almost complete spectrum of molecular changes was revealed, including nonsense mutations, 37.5% (127/339); missense mutations, 5.3% (18/339); frame shift mutations, 18.9% (64 / 339); splice site mutations, 13.9% (47/339); and large deletions, 24.5% (83/339). Conclusion. The use of deep high-throughput parallel sequencing and the MLPA method allows efficient detection of molecular genetic changes in the RB1 gene. The types of mutations found in the studied group, their frequency and distribution are the same as the results of researchers in other countries.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ретинобластома</kwd><kwd>RB1</kwd><kwd>высокопроизводительное параллельное секвенирование ДНК</kwd><kwd>MLPA</kwd></kwd-group><kwd-group xml:lang="en"><kwd>retinoblastoma</kwd><kwd>RB1</kwd><kwd>mutation</kwd><kwd>large deletion</kwd><kwd>NGS</kwd><kwd>MLPA</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">Dimaras H., Corson T.W., Cobrinik D., White A., Zhao J., Munier F. et al. Retinoblastoma. Nat Rev Dis Primers. 2015; 1: 15021. https://doi.org/10.1038/nrdp.2015.21.</mixed-citation><mixed-citation xml:lang="en">Dimaras H., Corson T.W., Cobrinik D., White A., Zhao J., Munier F. et al. Retinoblastoma. 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