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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">pmedpharm</journal-id><journal-title-group><journal-title xml:lang="ru">Фармация и фармакология</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacy &amp; Pharmacology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2307-9266</issn><issn pub-type="epub">2413-2241</issn><publisher><publisher-name>Pyatigorsk Medical and Pharmaceutical Institute - branch of Volgograd State Medical Univer</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.19163/2307-9266-2022-10-6-525-535</article-id><article-id custom-type="elpub" pub-id-type="custom">pmedpharm-1218</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>ФАРМАКОЛОГИЯ И КЛИНИЧЕСКАЯ ФАРМАКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHARMACOLOGY AND CLINICAL PHARMACOLOGY</subject></subj-group></article-categories><title-group><article-title>СОЗДАНИЕ КЛОНА ЭМБРИОНАЛЬНЫХ СТВОЛОВЫХ КЛЕТОК МЫШЕЙ С КОНДИЦИОННЫМ НОКАУТОМ ГУМАНИЗИРОВАННОГО ГЕНА SNCA</article-title><trans-title-group xml:lang="en"><trans-title>DEVELOPMENT OF MURINE STEM CELLS WITH CONDITIONAL KNOCKOUT OF HUMANIZED SNCA GENE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8415-4562</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Патраханов</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Patrakhanov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">pateval7@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/0000-0003-3138-2075</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Покровский</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Pokrovsky</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">vmpokrovsky08@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/0000-0001-9440-5866</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карагодина</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Karagodina</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">karagodina75@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/0000-0002-6830-3820</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краюшкина</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Krayushkina</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»). </p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">annkrayushkina98@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/0000-0002-1969-3615</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жунусов</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhunusov</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">nzhunu@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/0000-0002-8151-6337</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дейкин</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Deykin</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук, доцент кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Biology), Associate Professor of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">deykin@bsu.edu.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/0000-0001-5402-0697</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корокин</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korokin</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, доцент, профессор кафедры фармакологии и клинической фармакологии, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Associate Professor, Professor of the Department of Pharmacology and Clinical Pharmacology, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">mkorokin@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/0000-0002-2761-6249</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Покровский</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pokrovsky</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, профессор кафедры фармакологии и клинической фармакологии, руководитель НИИ Фармакологии живых систем, ФГАОУ ВО «Белгородский государственный национальный исследовательский университет» (НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>octor of Sciences (Medicine), Professor of the Department of Pharmacology and Clinical Pharmacology, Head of the Research Institute of Pharmacology of Living Systems, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">mpokrovsky@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/0000-0003-4674-8797</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алтухова</surname><given-names>О. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Altukhova</surname><given-names>O. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор медицинских наук, доцент, заведующий кафедрой акушерства и гинекологии медицинского института ФГАОУ ВО «Белгородский государственный национальный исследовательский университет»(НИУ «БелГУ»)</p><p>308015, Россия, г. Белгород, ул. Победы, д. 85</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Medicine), Associate Professor, Head of the Department of Obstetrics and Gynecology of the Medical Institute, Belgorod State National Research University</p><p>85, Pobedy Str., Belgorod, Russia, 308015</p></bio><email xlink:type="simple">altuhova_o@bsu.edu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Белгородский государственный национальный исследовательский университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belgorod State National Research University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>12</day><month>02</month><year>2023</year></pub-date><volume>10</volume><issue>6</issue><fpage>525</fpage><lpage>535</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Патраханов Е.А., Покровский В.М., Карагодина А.Ю., Краюшкина А.М., Жунусов Н.С., Дейкин А.В., Корокин М.В., Покровский М.В., Алтухова О.Б., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Патраханов Е.А., Покровский В.М., Карагодина А.Ю., Краюшкина А.М., Жунусов Н.С., Дейкин А.В., Корокин М.В., Покровский М.В., Алтухова О.Б.</copyright-holder><copyright-holder xml:lang="en">Patrakhanov E.A., Pokrovsky V.M., Karagodina A.Y., Krayushkina A.M., Zhunusov N.S., Deykin A.V., Korokin M.V., Pokrovsky M.V., Altukhova O.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.pharmpharm.ru/jour/article/view/1218">https://www.pharmpharm.ru/jour/article/view/1218</self-uri><abstract><p>Одним из ключевых молекулярных звеньев в патогенезе болезни Паркинсона является белок α-синуклеин. Накопленные данные свидетельствуют о том, что патогенные мутации в гене Snca ассоциированы с развитием нейродегенеративного повреждения головного мозга, тем самым указывая на актуальность изучения нейробиологической роли α-синуклеина.</p><sec><title>Цель</title><p>Цель. Создание генетически-модифицированного клона стволовых клеток мышей с кондиционным нокаутом гуманизированного α-синуклеина, который может быть использован для реинъекции в мышиные бластоцисты, а также для фундаментальных и прикладных in vitro исследований в области патофизиологии и нейрофармакологии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для создания мышиных стволовых клеток с кондиционным нокаутом гуманизированного гена Snca был использован прежде полученный клон с фланкированным LoxP-сайтами первым экзоном Snca. Для гуманизации IV и V экзона была использована система CRISPR/Cas9-опосредованной гомологичной рекомбинации с донорными ДНК олигонуклеотидами человеческих сайтов соответствующих генов. Нуклеаза Cas9, гидовые РНК и донорная ДНК были трансфецированы в клетки мыши.</p></sec><sec><title>Результаты</title><p>Результаты. Нами был предложен и реализован подход к получению клонов мышиных генетически-модифицированных стволовых клеток, экспрессирующих патологический гуманизированный α-синуклеин. Полученные клоны были высеяны на чашки Петри для размножения и дальнейшего генетического анализа. Был обнаружен клон 126-2F4, несущий необходимые генетические модификации. Результаты проведенного исследования принципиально важны не только для понимания развития патологического процесса при α-синуклеинопатиях, но и, что ещё важнее, для разработки новых терапевтических подходов, которые позволят остановить распространение агрегационной патологии человеческого α-синуклеина по нервной системе и валидации этих подходов в доклинических испытаниях.</p></sec><sec><title>Заключение</title><p>Заключение. В результате проведенного исследования разработана стратегия CRISPR/Cas9-ассистированной гомологической рекомбинации в геноме эмбриональных стволовых клеток мыши для создания полностью гуманизированного гена Snca, кодирующего α-синуклеин. Выполнено редактирование генома клона эмбриональных стволовых клеток мыши с использованием CRISPR технологии. Синтезированы РНК и ДНК олигонуклеотиды, необходимые для создания рибонуклеопротеиновых комплексов, осуществляющих направленную гомологическую рекомбинацию в Snca локусе генома мыши. Разработанный клон клеток может служить для создания линии генетически-модифицированных мышей, служащих тест-системой для патофизиологических и нейрофармакологических исследований, связанных с синуклеинопатиями. При этом до индукции Cre-зависимой рекомбинации данная линия является репрезентативной моделью для исследования биологической роли мутантного Snca. В то же время, после Cre-зависимая активация нокаута позволяет имитировать фармакологическое ингибирование α-синуклеина, что представляет особый интерес для прикладных исследований в нейрофармакологии.</p></sec></abstract><trans-abstract xml:lang="en"><p>α-synuclein is one of the key molecular links in the pathogenesis of Parkinson’s disease. The accumulated data indicate that pathogenic mutations in the Snca gene are associated with the development of neurodegenerative brain damage, indicating the relevance of studying the synuclein neurobiological role.</p><p>The aim of the study was to create a genetically modified clone of mouse stem cells with a conditional knockout of humanized α-synuclein, which can be used for the reinjection into mouse blastocysts, as well as for basic and applied in vitro research in the field of pathophysiology and neuropharmacology.</p><sec><title>Materials and methods</title><p>Materials and methods. To create mouse stem cells with a conditional knockout of the humanized Snca gene, a previously obtained clone with the first Snca exon flanked by LoxP sites, was used. The CRISPR/Cas9-mediated homologous recombination system with donor DNA oligonucleotides of the human sites of the corresponding gene sites was used to humanize the fourth and fifth exons. Cas9 nuclease, single guide RNA, and donor DNA were transfected into mouse cells.</p></sec><sec><title>Results</title><p>Results. An approach to obtaining clones of mouse genetically modified stem cells expressing pathological humanized α-synuclein, has been proposed and implemented. The resulting clones were plated on Petri dishes for propagation and a further genetic analysis. Clone 126-2F4 was found out carrying the necessary genetic modifications. The results obtained are fundamentally important not only for understanding the development of the pathological process in α-synucleinopathies, but which is more important, for the development of new therapeutic approaches that will stop the extension of the human α-synuclein aggregation pathology throughout the nervous system, and the validation of these approaches in preclinical trials.</p></sec><sec><title>Conclusion</title><p>Conclusion. As a result of the study, a strategy for CRISPR/Cas9-assisted homologous recombination in the genome of mouse embryonic stem cells has been developed to create a fully humanized Snca gene encoding α-synuclein, and the clone genome of mouse embryonic stem cells has been edited using a CRISPR technology. The RNA and DNA oligonucleotides necessary for the creation of RNP complexes that carry out a directed homologous recombination in the Snca locus of the mouse genome have been synthesized. The developed cell clone can serve to create a line of genetically modified mice that serve as a test system for pathophysiological and neuropharmacological studies associated with synucleinopathies. Herewith, before the induction of the Cre-dependent recombination, this line is a representative model for studying a biological role of mutant Snca. At the same time, after a Cre-dependent knockout activation, it is possible to imitate the pharmacological inhibition of α-synuclein, which is of particular interest for applied research in neuropharmacology.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>α-синуклеин</kwd><kwd>нейродегенерация</kwd><kwd>болезнь Паркинсона</kwd><kwd>кондиционный нокаут</kwd><kwd>CRISPR/Cas9</kwd></kwd-group><kwd-group xml:lang="en"><kwd>α-synuclein</kwd><kwd>neurodegeneration</kwd><kwd>Parkinson’s disease</kwd><kwd>conditional knockout</kwd><kwd>CRISPR/Cas9</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при финансовой поддержке Министерства науки и образования Российской Федерации (Приложение № 9 к Соглашению о субсидии № 075-15-2021-1346 от 04.10.2021).</funding-statement><funding-statement xml:lang="en">The study was conducted with the financial support of the Ministry of Science and Education of the Russian Federation (Appendix No. 9 to Subsidy Agreement No. 075-15-2021-1346 dated October 4, 2021).</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">Checkoway H., Lundin J.I., Kelada S.N. 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