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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10307</article-id><article-id pub-id-type="doi">10.32607/20758251-2019-11-1-66-73</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Adaptation of the Newcastle Disease Virus to Cell Cultures for Enhancing Its Oncolytic Properties</article-title><trans-title-group xml:lang="ru"><trans-title>Адаптация вируса болезни Ньюкасла к клеточным линиям с целью повышения онколитических свойств</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yurchenko</surname><given-names>K. S.</given-names></name><name xml:lang="ru"><surname>Юрченко</surname><given-names>K. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>xenia7yurchenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Jing</surname><given-names>Yi.</given-names></name><name xml:lang="ru"><surname>Цзин</surname><given-names>И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>xenia7yurchenko@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shestopalov</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Шестопалов</surname><given-names>A. M.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>xenia7yurchenko@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal State Budget Scientific Institution «Federal Research Center of Fundamental and Translational Medicine»</institution></aff><aff><institution xml:lang="ru">Федеральный исследовательский центр фундаментальной и трансляционной медицины</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal State Budgetary Educational Institution of higher professional education “Novosibirsk national research state University»</institution></aff><aff><institution xml:lang="ru">Новосибирский национальный исследовательский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2019</year></pub-date><volume>11</volume><issue>1</issue><issue-title xml:lang="en">VOL 11, NO1 (2019)</issue-title><issue-title xml:lang="ru">ТОМ 11, №1 (2019)</issue-title><fpage>66</fpage><lpage>73</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Yurchenko K.S., Jing Y., Shestopalov A.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Юрченко K.С., Цзин И., Шестопалов A.M.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Yurchenko K.S., Jing Y., Shestopalov A.M.</copyright-holder><copyright-holder xml:lang="ru">Юрченко K.С., Цзин И., Шестопалов A.M.</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://actanaturae.ru/2075-8251/article/view/10307">https://actanaturae.ru/2075-8251/article/view/10307</self-uri><abstract xml:lang="en"><p>This study focuses on the adaptation of natural Newcastle disease virus (NDV) strains isolated from wild birds to human tumor cells. Many candidates for virotherapy are viruses pathogenic for human. During recombination of genetic material, there always exists a risk of getting a virus with an unstable genome. This problem can be solved by using natural apathogenic viruses as oncolytic agents. The Newcastle disease virus is the causative agent of contagious avian diseases. Its natural strains exhibit an antitumor effect and are considered safe for humans. As shown in earlier studies, the oncolytic properties of natural strains can be enhanced during adaptation to cell cultures, without interference in the virus genome. This study demonstrates that serial passaging increases the viral infectious titer in cancer cells. Moreover, the viability of tumor cells decreases post-infection when Newcastle disease virus strains are adapted to these cell cultures. The findings of this study complement the well-known data on the adaptation of the Newcastle disease virus to human cancer cells. Hence, it is possible to obtain a NDV strain with a more pronounced oncolytic potential during adaptation. This should be taken into account when choosing a strategy for designing anticancer drugs based on this virus.</p></abstract><trans-abstract xml:lang="ru"><p>Настоящая работа посвящена адаптации природных штаммов вируса болезни Ньюкасла, выде ленных от диких птиц, на опухолевых клетках человека. Большинство потенциальных онколитических вирусов относится к патогенным для человека видам. При манипуляции с генетическим материалом всегда есть риск получить вирус с нестабильным геномом. Решением может быть применение в качестве онколитических агентов природных апатогенных для человека вирусов. Вирус болезни Ньюкасла - возбудитель контагиозных заболеваний птиц, природные штаммы которого проявляют противоопухолевое действие и считаются безопасными для человека. Как показано в ряде работ, онколитические свойства природных штаммов можно повысить в процессе адаптации к культурам клеточных линий без вмешательства в геном вируса. В данной работе показано, что последовательные пассажи позволяют повысить инфекционный титр вируса на раковых клетках и привести к снижению жизнеспособности опухолевых клеток после ин фицирования штаммом, адаптированным на этих клеточных линиях. Полученные результаты дополняют известные данные о процессе адаптации вируса болезни Ньюкасла к опухолевым клеткам человека. Таким образом, при адаптации вируса болезни Ньюкасла можно получить штамм с более выраженным онколи тическим потенциалом, что необходимо учитывать при выборе стратегии разработки противоопухолевых препаратов на основе этого вируса.</p></trans-abstract><kwd-group xml:lang="en"><kwd>adaptation</kwd><kwd>Newcastle disease virus</kwd><kwd>oncolytic properties</kwd><kwd>tumor cells</kwd><kwd>cytotoxic effect</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>адаптация</kwd><kwd>вирус болезни Ньюкасла</kwd><kwd>онколитические свойства</kwd><kwd>опухолевые клетки</kwd><kwd>цитотоксическое действие</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was carried out with a financial support of the Russian Foundation for Basic Research under the project No. 18-34-00139.</funding-statement><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта № 18-34-00139.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Buijs P.R., Verhagen J.H., van Eijck C.H., van den Hoogen B.G. // Hum. 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