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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">10.15829/1728-8800-2025-4557</article-id><article-id custom-type="edn" pub-id-type="custom">DVGAAK</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiovascular-4557</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 ARTICLE</subject></subj-group></article-categories><title-group><article-title>Оптимизация протокола приготовления библиотек для секвенирования циркулирующих микроРНК плазмы и сыворотки</article-title><trans-title-group xml:lang="en"><trans-title>Optimization of a library preparation protocol for sequencing circulating plasma and serum microRNAs</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4765-8021</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Киселева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiseleva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., руководитель лаборатории молекулярной генетики Института персонализированной терапии и профилактики, в.н.с.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">sanyutabe@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/0000-0002-8395-4146</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сотникова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sotnikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>с.н.с. лаборатории молекулярной генетики Института персонализированной терапии и профилактики.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">sotnikova.evgeniya@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/0000-0003-0723-0493</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жарикова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zharikova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.б.н., в.н.с. лаборатории молекулярной генетики Института персонализированной терапии и профилактики, старший преподаватель факультета биоинженерии и биоинформатики</p><p>. Петроверигский пер., д. 10, стр. 3, Москва, 101990; Ленинские горы, д. 1, Москва, 119991</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990; Leninskiye Gory, 1, Moscow, 119234</p></bio><email xlink:type="simple">azharikova89@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9844-3122</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куценко</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kutsenko</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.- м.н., с.н.с. лаборатории биостатистики отдела эпидемиологии хронических неинфекционных заболеваний.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">vlakutsenko@ya.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/0000-0003-4020-6647</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>Руководитель лаборатории "Банк биологического материала" Института персонализированной терапии и профилактики.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">aborisova@gnicpm.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/0000-0003-2087-6483</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шальнова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shalnova</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>.м.н., профессор, руководитель отдела эпидемиологии хронических неинфекционных заболеваний.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">SShalnova@gnicpm.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/0000-0001-7989-0760</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ершова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ershova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., зам. директора по фундаментальной науке, руководитель лаборатории клиномики.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">AErshova@gnicpm.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>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., руководитель Института персонализированной терапии и профилактики.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">ameshkov@gnicpm.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>д.м.н., профессор, академик РАН, директор.</p><p>Петроверигский пер., д. 10, стр. 3, Москва, 101990</p></bio><bio xml:lang="en"><p>Petroverigsky Lane, 10, bld. 3, Moscow, 101990</p></bio><email xlink:type="simple">ODrapkina@gnicpm.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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ "Национальный медицинский исследовательский центр терапии и профилактической медицины" Минздрава России; ФГБОУ ВО "Московский государственный университет им. М.В. Ломоносова"</institution></aff><aff xml:lang="en"><institution>National Medical Research Center for Therapy and Preventive Medicine; Lomonosov Moscow State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>23</day><month>01</month><year>2026</year></pub-date><volume>24</volume><issue>11</issue><fpage>4557</fpage><lpage>4557</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Киселева А.В., Сотникова Е.А., Жарикова А.А., Куценко В.А., Борисова А.Л., Шальнова С.А., Ершова А.И., Мешков А.Н., Драпкина О.М., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Киселева А.В., Сотникова Е.А., Жарикова А.А., Куценко В.А., Борисова А.Л., Шальнова С.А., Ершова А.И., Мешков А.Н., Драпкина О.М.</copyright-holder><copyright-holder xml:lang="en">Kiseleva A.V., Sotnikova E.A., Zharikova A.A., Kutsenko V.A., Borisova A.L., Shalnova S.A., Ershova A.I., Meshkov A.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/4557">https://cardiovascular.elpub.ru/jour/article/view/4557</self-uri><abstract><sec><title>Цель</title><p>Цель. Оптимизировать протокол приготовления библиотек для секвенирования микроРНК (малые некодирующие молекулы рибонуклеиновой кислоты) на основе коммерческого набора QIAseq miRNA UDI Library Kit для повышения качества получаемых данных.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Образцы плазмы и сыворотки крови четырех участников исследования были отобраны из коллекции биобанка ФГБУ "НМИЦ ТПМ" Минздрава России. Выделение рибонуклеиновой кислоты (РНК) проводилось для каждого образца параллельно из 200 и 300 мкл. Из каждого образца РНК с помощью набора QIAseq miRNA UDI Library Kit были приготовлены две библиотеки для секвенирования по двум вариантам протокола производителя: для 1 нг РНК с уменьшенным числом циклов амплификации и для 10 нг РНК. Секвенирование проводилось на NextSeq 550.</p></sec><sec><title>Результаты</title><p>Результаты. При сравнении групп образцов, приготовленных с использованием разных версий протокола, статистически значимо различались показатели тегов на млн прочтений (TPM, tags per million reads) на образец по генам человека (версия ENCODE v47) и по генам микроРНК (p&lt;0,001).</p></sec><sec><title>Заключение</title><p>Заключение. Показано, что при использовании биообразцов плазмы и сыворотки крови основным параметром, влияющим на более высокие показатели секвенирования микроРНК, является уменьшение количества циклов полимеразной цепной реакции при приготовлении библиотек.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To optimize a library preparation protocol for sequencing small non-coding ribonucleic acids (microRNAs) based on the commercial QIAseq miRNA UDI Library Kit to improve the quality of the obtained data.</p></sec><sec><title>Material and methods</title><p>Material and methods. Plasma and serum samples from four study participants were collected from the biobank collection of the National Medical Research Center for Therapeutic and Preventive Medicine. Ribonucleic acid (RNA) was isolated for each sample in parallel, using 200 and 300 µl aliquots. Two sequencing libraries were prepared from each RNA sample using the QIAseq miRNA UDI Library Kit by two manufacturer's protocol versions as follows: one for 1 ng of RNA with a reduced number of amplification cycles and one for 10 ng of RNA. Sequencing was performed on a NextSeq 550.</p></sec><sec><title>Results</title><p>Results. When comparing groups of samples prepared using different protocol versions, there was a significant difference in the tags per million reads (TPM) per sample for human (ENCODE v47) and microRNA genes (p&lt;0,001).</p></sec><sec><title>Conclusion</title><p>Conclusion. We showed that when using plasma and serum biosamp­les, the main parameter influencing higher microRNA sequencing rates is a reduction in the number of polymerase chain reaction cycles during library preparation.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>микроРНК</kwd><kwd>малые некодирующие РНК</kwd><kwd>плазма</kwd><kwd>сыворотка</kwd><kwd>секвенирование следующего поколения</kwd><kwd>оптимизация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microRNA</kwd><kwd>small non-coding RNA</kwd><kwd>plasma</kwd><kwd>serum</kwd><kwd>next-ge­ne­ration sequencing</kwd><kwd>optimization</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Государственное задание "Сво­бод­но циркулирующие микроРНК плазмы крови как диагностические и прогностические биомаркеры ИБС"</funding-statement><funding-statement xml:lang="en">State assignment "Circulating Micro­RNAs in Plasma as Diagnostic and Prognostic Biomarkers of CAD"</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">Matias-­Garcia PR, Wilson R, Mussack V, et al. 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