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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">biopreparat</journal-id><journal-title-group><journal-title xml:lang="ru">БИОпрепараты. Профилактика, диагностика, лечение</journal-title><trans-title-group xml:lang="en"><trans-title>Biological Products. Prevention, Diagnosis, Treatment</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-996X</issn><issn pub-type="epub">2619-1156</issn><publisher><publisher-name>Scientific Centre for Expert Evaluation of Medicinal Products</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">biopreparat-100</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Изучение возможности использования метода qPCR для контроля отсутствия микоплазменной контаминации в клеточных культурах</article-title><trans-title-group xml:lang="en"><trans-title>Possibilities of qPCR control of mycoplasma contamination of cell cultures</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>Ёлшин</surname><given-names>Н. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Yolshin</surname><given-names>N. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Младший научный сотрудник лаборатории иммунофармакологии</p></bio><bio xml:lang="en"><p>Junior research scientist of the Immunopharmacology Laboratory</p></bio><email xlink:type="simple">nikita.yolshin@gmail.com</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>Петров</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Начальник лаборатории иммунофармакологии</p></bio><bio xml:lang="en"><p>Head of the Immunopharmacology Laboratory</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственный научно-исследовательский институт особо чистых биопрепаратов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Institute of Highly Pure Biopreparations</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>20</day><month>02</month><year>2018</year></pub-date><volume>17</volume><issue>3</issue><fpage>173</fpage><lpage>179</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ёлшин Н.Д., Петров А.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Ёлшин Н.Д., Петров А.В.</copyright-holder><copyright-holder xml:lang="en">Yolshin N.D., Petrov A.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.biopreparations.ru/jour/article/view/100">https://www.biopreparations.ru/jour/article/view/100</self-uri><abstract><p>Микоплазмы - основные контаминанты клеточных культур. Персистируя в клеточных культурах, микоплазмы многообразно влияют на функционирование клеток-хозяев. Проведение экспериментов на таких контаминированных клетках нерационально, как и наработка в них белка. Цель работы - изучить возможность быстрого выявления контаминации микоплазмами культур клеток и биотехнологических продуктов с воспроизведением ранее разработанной методики, при внесении в нее упрощающих модификаций, повышающих доступностность такого анализа в России, а также оценить возможность валидации методики для контроля в процессе производства. Из уже существующих методик детекции микоплазмы методом qPCR (quantitative PCR) была выбрана наиболее пригодная для работы, произведена модификация анализа: дорогостоящие и недоступные к синтезу в России MGB-зонды были заменены на обычные флуоресцентные. Воспроизводимость и чувствительность модифицированной методики были изучены на примере работы с M. hominis. Чувствительность данного теста достигает 10 генных копий микоплазм на реакцию. На основании сопоставления полученных результатов и регламентируемых нормативными документами требований к методам детекции микоплазм сделан вывод, что предложенная методика на основе qPCR анализа хорошо подходит для своевременной и регулярной проверки культур клеток на предмет контаминации микоплазмами, теоретически нет никаких противоречий с современной регламентирующей документацией для использования этого метода в качестве основного.</p></abstract><trans-abstract xml:lang="en"><p>Mycoplasmas are the main contaminants of cells cultures. They persist in cell cultures and can extensively affect host cell functions. Conducting experiments or producing protein in contaminated cultures are impractical. The aim of the study was to explore the possibility of quick detection of mycoplasma contamination of cell cultures and biotechnological products by a previously developed method which was modified to make it simpler and more affordable in Russia; and to assess the possibility of method validation for quality control. The authors chose the most applicable qPCR method of all qPCR methods currently used for mycoplasma detection, and modified it in the following way: expensive MGB-probes which cannot be synthesized in Russia were substituted by ordinary fluorescence probes. The reproducibility and sensitivity of the modified method were tested with M. hominis. The sensitivity of the test was equal to 10 mycoplasma gene copies per reaction. Comparison of the obtained results with regulatory requirements for mycoplasma detection showed that the proposed method complies with current official requirements and could be used as the main method for routine prompt cell culture testing for mycoplasma contamination.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микоплазмы</kwd><kwd>контаминация клеточных культур</kwd><kwd>qPCR определение микоплазм</kwd><kwd>контроль качества биотехнологических продуктов</kwd><kwd>mycoplasma</kwd><kwd>cell culture contamination</kwd><kwd>qPCR mycoplasma detection</kwd><kwd>biotechnological products quality control</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">Langdon SP. Cell culture contamination: an overview. Methods Mol Med. 2004; 88: 309-17.</mixed-citation><mixed-citation xml:lang="en">Langdon SP. Cell culture contamination: an overview. 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