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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">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2023-22-2-76-84</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-2531</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>ЛАБОРАТОРНЫЕ И ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LABORATORY AND EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Нокаут гистоновой метилтрансферазы NSD1 приводит к снижению пролиферации и увеличению чувствительности к цисплатину клеток плоскоклеточного рака гортани</article-title><trans-title-group xml:lang="en"><trans-title>Knockout of the histone methyltransferase NSD1 leads to a decrease in cell proliferation and an increase in sensitivity to cisplatin in laryngeal squamous cell carcinoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9105-5207</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Топчу</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Topchu</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Топчу Юлия Алексеевна, магистр, </p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Iuliia A. Topchu, MS,</p><p>18, Kremlyovskaya St., 420008, Kazan</p></bio><email xlink:type="simple">topchu.1993@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/0000-0001-9357-3649</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихомирова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhomirova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тихомирова Мария Владимировна, магистр, </p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Mariya V. Tikhomirova, MS,</p><p>18, Kremlyovskaya St., 420008, Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2961-0032</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Булатов</surname><given-names>Э. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Bulatov</surname><given-names>E. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Булатов Эмиль Рафаэлевич, кандидат наук, ведущий научный сотрудник, </p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Emil R. Bulatov, PhD, Leading Researcher, </p><p>18, Kremlyovskaya St., 420008, Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3749-3411</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абрамова</surname><given-names>З. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramova</surname><given-names>Z. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абрамова Зинаида Ивановна, доктор наук, профессор, ведущий научный сотрудник, </p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Zinaida I. Abramova, Professor, Leading Researcher,</p><p>18, Kremlyovskaya St., 420008, Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5003-248X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бумбер</surname><given-names>Я. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Boumber</surname><given-names>Y. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бумбер Янис Алексеевич, кандидат наук, старший научный сотрудник, </p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Yanis A. Boumber, PhD, Senior Researcher,</p><p>18, Kremlyovskaya St., 420008, Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Казанский (Приволжский) федеральный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan (Volga region) Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>05</month><year>2023</year></pub-date><volume>22</volume><issue>2</issue><fpage>76</fpage><lpage>84</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Топчу Ю.А., Тихомирова М.В., Булатов Э.Р., Абрамова З.И., Бумбер Я.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Топчу Ю.А., Тихомирова М.В., Булатов Э.Р., Абрамова З.И., Бумбер Я.А.</copyright-holder><copyright-holder xml:lang="en">Topchu I.A., Tikhomirova M.V., Bulatov E.R., Abramova Z.I., Boumber Y.A.</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.siboncoj.ru/jour/article/view/2531">https://www.siboncoj.ru/jour/article/view/2531</self-uri><abstract><sec><title>Введение</title><p>Введение. Метилирование гистонов является одним из механизмов, участвующих в регуляции экспрессии генов и поддерживающих стабильность генома, участвуя в репарации ДНК. Диметилирование лизина 36 на гистоне 3 (H3K36me2) является одной из важнейших гистоновых модификаций, которая характеризуется как эпигенетическая метка, ответственная за активацию экспрессии генов. H3K36me2 – продукт ферментной активности белков NSD1, NSD2, NSD3 и ASH1L. Известно, что мутации гистоновой метилтрансферазы NSD1 часто встречаются при плоскоклеточном раке головы и шеи, и наличие мутаций NSD1 положительно коррелирует с повышенной выживаемостью пациентов. Особенно эта тенденция выражена у пациентов с раком гортани.</p><p>Целью исследования стали изучение роли NSD1 в росте клеток плоскоклеточного рака гортани и немелкоклеточного рака легкого и оценка влияния нарушения экспрессии NSD1 на чувствительность клеток к цисплатину.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. С использованием базы данных TCGA был проведен корреляционный анализ между наличием мутаций в гене NSD1 и выживаемостью пациентов. С помощью системы геномного редактирования CRISPR/Cas9 были созданы клеточные линии рака гортани и немелкоклеточного рака легкого с нокаутом гена NSD1. Методом иммуноблоттинга был оценен эффект нокаута NSD1 на уровень H3K36me2 в контрольных и нокаутных клетках. Также были проведены тест на пролиферацию клеток и тест на определение жизнеспособности клеток под действием цисплатина.</p></sec><sec><title>Результаты</title><p>Результаты. Нокаут NSD1 эффективно снижает уровень H3K36me2 в клеточных линиях рака гортани и рака легкого. Также на созданных клеточных моделях было продемонстрировано, что нокаут NSD1 значительно понижает пролиферативную активность клеток рака гортани и повышает эффективность лечения цисплатином, в то время как в клетках немелкоклеточного рака легкого такого эффекта обнаружено не было.</p></sec><sec><title>Заключение</title><p>Заключение. На основе полученных данных можно сделать вывод о том, что белок NSD1 является потенциальной мишенью для разработки ингибиторов с последующим тестированием in vitro и in vivo на моделях плоскоклеточного рака головы и шеи, особенно рака гортани. Для более детального понимания того, как NSD1 регулирует рост опухолевых клеток, нужны дополнительные исследования.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The histone methylation regulates gene expression and plays a role in genomic stability participating in DNA repair. Dimethylation of histone 3 lysine 36 (H3K36me2) is an important histone modification which is responsible for gene expression activation. H3K36me2 is a product of methyltransferase activity of NSD1, NSD2, NSD3, and ASH1L proteins. NSD1 mutations are known to often occur in head and neck squamous carcinoma. The presence of NSD1 mutations highly correlates with increased survival, especially for patients with laryngeal cancer. The aim of this study was an in vitro investigation of the role of NSD1 in the cell proliferation of laryngeal squamous cell cancer and non-small lung cancer cells, as well as a study of the effect of disruption of the NSD1 gene expression on cisplatin treatment response.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. Using TCGA, correlation analysis was performed to compare NSD1 wild type and mutant patient survival. NSD1 knockout cell lines models of laryngeal and non-small cell lung cancer were developed using the CRISPR/ Cas9 system. The effect of NSD1 knockout on H3K36me2 level was evaluated by western blot. Proliferation and IC50 of cisplatin in control and knockout cells were studied as well.</p></sec><sec><title>Results</title><p>Results. It was demonstrated that NSD1 knockout decreased the H3K36me2 level and cell proliferation in laryngeal squamous cell cancer cells and increased the sensitivity of head and neck cancer cells to cisplatin treatment, while there was no effect of NSD1 knockout in a non-small cell lung cancer cell line.</p></sec><sec><title>Conclusion</title><p>Conclusion. Based on the data obtained, it can be concluded that the NSD1 protein is a potential target for inhibitor development following in vitro and in vivo testing in head-neck squamous cell carcinoma models. More studies are needed for better understanding of the regulation of tumor cell growth by NSD1. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>метилирование гистонов</kwd><kwd>NSD1</kwd><kwd>плоскоклеточная карцинома головы и шеи</kwd><kwd>CRISPR/Cas9</kwd></kwd-group><kwd-group xml:lang="en"><kwd>histone methylation</kwd><kwd>NSD1</kwd><kwd>head and neck squamous cell carcinoma</kwd><kwd>CRISPR/Cas9</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Программы стратегического академического лидерства Казанского (Приволжского) федерального университета (ПРИОРИТЕТ-2030).</funding-statement><funding-statement xml:lang="en">The study was supported by the Strategic Academic Leadership Program of the Kazan (Volga Region) Federal University (PRIORITET-2030).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kanwal R., Gupta K., Gupta S. 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