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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">10.25557/2073-7998.2023.11.35-39</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2372</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>Редактирование генома методом CRISPR/Cas для создания сублинии клеток рака легкого человека А549, нокаутной по гену р21</article-title><trans-title-group xml:lang="en"><trans-title>Genome editing by CRISPR/Cas to generate A549 human lung cancer subline knockout for the р21 gene</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>Персиянцева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Persiyantseva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, Каширское шоссе, д. 23</p></bio><bio xml:lang="en"><p>23, Kashirskoe shosse, Moscow, 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казанский</surname><given-names>Д. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazansky</surname><given-names>D. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, Каширское шоссе, д. 23</p></bio><bio xml:lang="en"><p>23, Kashirskoe shosse, Moscow, 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Татарский</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tatarskiy</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119334, г. Москва, ул. Вавилова, д. 34/5</p></bio><bio xml:lang="en"><p>34/5 Vavilova st., Moscow, 119334</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Замкова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zamkova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, Каширское шоссе, д. 23</p><p>119334, г. Москва, ул. Вавилова, д. 34/5</p></bio><bio xml:lang="en"><p>23, Kashirskoe shosse, Moscow, 115522</p><p>34/5 Vavilova st., Moscow, 119334</p></bio><email xlink:type="simple">zamkovam@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Oncology named after N.N. Blokhin</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт биологии гена Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Gene Biology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России; Институт биологии гена Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Oncology named after N.N. Blokhin; Institute of Gene Biology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>08</day><month>12</month><year>2023</year></pub-date><volume>22</volume><issue>11</issue><fpage>35</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Персиянцева Н.А., Казанский Д.Б., Татарский В.В., Замкова М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Персиянцева Н.А., Казанский Д.Б., Татарский В.В., Замкова М.А.</copyright-holder><copyright-holder xml:lang="en">Persiyantseva N.A., Kazansky D.B., Tatarskiy V.V., Zamkova M.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.medgen-journal.ru/jour/article/view/2372">https://www.medgen-journal.ru/jour/article/view/2372</self-uri><abstract><p>Технология CRISPR/Cas, являющаяся наиболее эффективной среди существующих методов редактирования генома, позволяет модифицировать таргетные участки молекулы ДНК и находит применение в различных отраслях биологии, генетики, сельского хозяйства, биотехнологии и медицины. С ее помощью создаются модели клеточных линий, необходимые для исследования роли определенных генов в развитии и терапии злокачественных и других заболеваний. Одним из таких генов является р21 (CDKN1A), регулируемый опухолевым супрессором р53 и негативно контролирующий прогрессию клеточного цикла. Неоднозначное влияние белка р21 на процессы канцерогенеза и ключевое участие в ответе клеток на терапию определяют его как перспективную мишень для исследований в этих областях. В нашей работе мы получили сублинию клеток рака легкого А549, нокаутную по гену р21, с помощью метода CRISPR/Cas, Ее использование планируется в экспериментах по изучению роли белка р21, а также опосредуемых им механизмов влияния других генов, в ответе клеток на терапию онкологических заболеваний, в частности, становлении фенотипа старения при применении низких доз терапии и выхода отдельных клеток из этой стадии (формирование рецидива опухоли), а также определении механизмов возникновения устойчивости опухолевых клеток.</p></abstract><trans-abstract xml:lang="en"><p>The CRISPR/Cas technology, which is the most efficient among the existing genome editing methods, allows modifying target regions of the DNA molecule and is used in various fields of biology, genetics, agriculture, biotechnology, and medicine. Models of cell lines required for studying the role of certain genes in the development and therapy of malignant and other diseases can be created using CRISPR/Cas method. One of such genes is p21 (CDKN1A), which is regulated by the p53 tumor suppressor and negatively controls cell cycle progression. The ambiguous influence of the p21 protein on the processes of carcinogenesis and its key role in the response of cells to therapy make it a promising target for research in these areas. In our work, we obtained a subline of lung cancer cells A549, knockout for the p21 gene, using the CRISPR/Cas method. It is planned to use it in experiments to study the role of the p21 protein, as well as the mechanisms mediated by it, the influence of other genes, in the cell response to cancer therapy. in particular, the formation of the senescence phenotype after treatment with low-dose therapy and the escape of individual cells from this stage (formation of tumor recurrence), as well as determining the mechanisms for the emergence of tumor cell resistance.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>CRISPR/Cas</kwd><kwd>sgRNA</kwd><kwd>p21</kwd><kwd>нокаут</kwd><kwd>рак</kwd><kwd>терапия онкологических заболеваний</kwd><kwd>клеточное старение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>CRISPR/Cas</kwd><kwd>sgRNA</kwd><kwd>p21</kwd><kwd>knockout</kwd><kwd>cancer</kwd><kwd>cancer therapy</kwd><kwd>cellular aging</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом Российского научного фонда № 22-24-00212, https://rscf.ru/project/22-24-00212/.</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Science Foundation grant No. 22-24-00212, https://rscf.ru/project/22-24-00212/.</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">Asmamaw M., Zawdie B. 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