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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">cardiovascular</journal-id><journal-title-group><journal-title xml:lang="ru">Кардиоваскулярная терапия и профилактика</journal-title><trans-title-group xml:lang="en"><trans-title>Cardiovascular Therapy and Prevention</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1728-8800</issn><issn pub-type="epub">2619-0125</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15829/1728-8800-2021-3114</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiovascular-3114</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>БИОБАНКИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOBANKING</subject></subj-group></article-categories><title-group><article-title>Влияние преаналитических переменных на качество внеклеточной ДНК. Биобанкирование материала для выделения внеклеточной ДНК</article-title><trans-title-group xml:lang="en"><trans-title>Influence of preanalytical variables on the quality of cell-free DNA. Biobanking of cell-free DNA material</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3843-6980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондрацкая</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondratskaya</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктория Александровна Кондрацкая — младший научный сотрудник лаборатории “Банк биологического материала”, лаборант-исследователь.</p><p>Москва. Тел.: +7 (906) 044-25-02</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">vkozlova2905@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/0000-0001-6985-7131</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Покровская</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pokrovskaya</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Сергеевна Покровская — кандидат биологических наук, руководитель лаборатории “Банк биологического материала”.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">MPokrovskaia@list.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/0000-0002-0554-9911</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Долудин</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Doludin</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Валерьевич Долудин — руководитель лаборатории развития биомедицинских технологий.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">doludin@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/0000-0003-4020-6647</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисова</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisova</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анна Львовна Борисова — ведущий инженер лаборатории “Банк биологического материала”.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">a.borisova0108@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/0000-0003-1500-3696</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лимонова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Limonova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алена Сергеевна Лимонова — лаборант лаборатории клиномики.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">limonova-alena@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/0000-0001-5989-6233</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мешков</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Meshkov</surname><given-names>А. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Николаевич Мешков — кандидат медицинских наук, руководитель лаборатории молекулярной генетики.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">meshkov@lipidclinic.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/0000-0002-4453-8430</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Драпкина</surname><given-names>О. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Drapkina</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оксана Михайловна Драпкина — доктор медицинских наук, профессор, член-корр. РАН, директор.</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">Drapkina@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ Национальный медицинский исследовательский центр терапии и профилактической медицины Минздрава России</institution></aff><aff xml:lang="en"><institution>National Medical Research Center for Therapy and Preventive Medicine</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>10</day><month>01</month><year>2022</year></pub-date><volume>20</volume><issue>8</issue><fpage>3114</fpage><lpage>3114</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кондрацкая В.А., Покровская М.С., Долудин Ю.В., Борисова А.Л., Лимонова А.С., Мешков А.Н., Драпкина О.М., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Кондрацкая В.А., Покровская М.С., Долудин Ю.В., Борисова А.Л., Лимонова А.С., Мешков А.Н., Драпкина О.М.</copyright-holder><copyright-holder xml:lang="en">Kondratskaya V.A., Pokrovskaya M.S., Doludin Y.V., Borisova A.L., Limonova A.S., Meshkov А.N., Drapkina O.M.</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://cardiovascular.elpub.ru/jour/article/view/3114">https://cardiovascular.elpub.ru/jour/article/view/3114</self-uri><abstract><p>Поиск ранних маркеров заболеваний, разработка диагностических тест-систем в последнее время все больше расширяется в рамках геномики. В качестве объектов генетических исследований используют геномную дезоксирибонуклеиновую кислоту (ДНК), внеклеточную ДНК (вкДНК) и ДНК микробиоты, получаемые из разных типов образцов: тканей, крови и ее производных, кала и др. Показано, что вкДНК, которая попадает в кровоток, в частности, в результате апоптоза, некроза, активной секреции опухолей и при метастазировании, имеет большое значение для изучения молекулярных механизмов патологического процесса и применения в клинической практике. Анализ циркулирующих нуклеиновых кислот может использоваться в диагностике для мониторинга реакции на лечение, оценки возникновения лекарственной устойчивости и количественной оценки минимального остаточного заболевания. В обзорной статье отражены сведения о биоматериале — источнике вкДНК, способах выделения вкДНК, хранения и использования для диагностики определенных заболеваний. ВкДНК может присутствовать в биологических жидкостях, таких как кровь, моча, слюна, синовиальная и цереброспинальная жидкость. Выделяют вкДНК в большинстве случаев из производных крови — сыворотки и плазмы, причем наиболее правильно использовать именно плазму крови для выделения вкДНК. Оптимальным и экономически целесообразным является использование пробирок с этилендиаминтетрауксусной кислотой для взятия крови и получения плазмы с последующим выделением вкДНК. Есть данные, что оптимальным сроком хранения в пробирке с этилендиаминтетрауксусной кислотой от момента забора крови до последующего выделения является 2-часовой интервал. После центрифугирования вкДНК в плазме (или сыворотке) может храниться длительное время при температуре -80O C. Хранение при -20O С нежелательно, поскольку при такой температуре увеличивается ее фрагментация.</p></abstract><trans-abstract xml:lang="en"><p>The search for early disease markers and the development of diagnostic systems has recently been expanding within genomics. Genomic deoxyribonucleic acid (DNA), cell-free DNA (cfDNA) and microbiome DNA obtained from different types of samples (tissues, blood and its derivatives, feces, etc.) are used as objects of genetic research. It has been shown that cfDNA that enters the bloodstream, in particular, as a result of apoptosis, necrosis, active tumor secretion and metastasis, is of great importance for studying molecular mechanisms of the pathological process and application in clinical practice. Circulating nucleic acid analysis can be used to monitor response to treatment, assess drug resistance, and quantify minimal residual disease. The review article reflects the following information about the biomaterial: source of cfDNA, methods of cfDNA isolation, storage and use for the diagnosis of certain diseases. Cell-free DNA can be present in biological fluids such as blood, urine, saliva, synovial and cerebrospinal fluid. In most cases, cfDNA is isolated from blood derivatives (serum and plasma), while it is most correct to use blood plasma for cfDNA isolation. Optimal and economically justifiable is the use of ethylenediaminetetra-acetic acid tubes for taking blood and obtaining plasma with subsequent cfDNA isolation. There is evidence that the optimal shelf life in an ethylenediaminetetra-acetic acid tube from the moment of blood sampling to subsequent isolation is a 2-hour interval. After centrifugation, cfDNA in plasma (or serum) can be stored for a long time at a temperature of -80O C. Storage at -20O C is undesirable, since DNA fragmentation increases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>вкДНК</kwd><kwd>хранение</kwd><kwd>биобанкирование</kwd><kwd>биоматериал</kwd><kwd>пробоподготовка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cfDNA</kwd><kwd>storage</kwd><kwd>biobanking</kwd><kwd>biomaterial</kwd><kwd>sample preparation</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">Muhanna N, Eu D, Chan HL, et al. Cell-free DNA and circulating tumor cell kinetics in a pre-clinical head and neck Cancer model undergoing radiation therapy. BMC Cancer. 2021;21:1075. doi:10.1186/s12885-021-08791-8.</mixed-citation><mixed-citation xml:lang="en">Muhanna N, Eu D, Chan HL, et al. Cell-free DNA and circulating tumor cell kinetics in a pre-clinical head and neck Cancer model undergoing radiation therapy. 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