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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">vedomostiregmed</journal-id><journal-title-group><journal-title xml:lang="ru">Регуляторные исследования и экспертиза лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Regulatory Research and Medicine Evaluation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-3062</issn><issn pub-type="epub">3034-3453</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/1991-2919-2022-387</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-466</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>МЕТОДИКИ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TESTING PROCEDURES</subject></subj-group></article-categories><title-group><article-title>Ингибиторы нейраминидазы: разработка и валидация методики определения ингибирующего действия in vitro</article-title><trans-title-group xml:lang="en"><trans-title>Neuraminidase Inhibitors: Development and Validation of a Procedure for In Vitro Determination of the Inhibitory Effect</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6866-5741</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фаустова</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Faustova</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фаустова Наталья Михайловна - кандидат химических наук.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Natalia M. Faustova - Cand. Sci. (Chem.).</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement, Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">faustova.nm@doclinika.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/0000-0002-4735-3079</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петлицкая</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petlitskaya</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петлицкая Серафима Сергеевна.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Seraphima S. Petlitskaya.</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement, Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">petlitskaya.ss@doclinika.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/0000-0003-0833-3371</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ампилогова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ampilogova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ампилогова Ирина Николаевна - кандидат химических наук.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Irina N. Ampilogova - Cand. Sci. (Chem.).</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement, Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">ampilogova.in@doclinika.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/0000-0002-6292-8934</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карлина</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Karlina</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карлина Марина Валерьевна - кандидат биологических наук.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Marina V. Karlina - Cand. Sci. (Biol.).</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement, Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">karlina.mv@doclinika.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/0000-0003-3176-6386</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макарова Марина Николаевна - доктор медицинских наук.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Marina N. Makarova - Dr. Sci (Med.).</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement,  Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">makarova.mn@doclinika.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2447-7888</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макаров</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макаров Валерий Геннадьевич - доктор медицинских наук.</p><p>Заводская ул., д. 3, к. 245, г.п. Кузьмоловский, Всеволожский р-н, Ленинградская обл., 188663</p></bio><bio xml:lang="en"><p>Valery G. Makarov - Dr. Sci (Med.).</p><p>3/245 Zavodskaya St., Kuzmolovsky urban-type settlement, Vsevolozhsky district, Leningrad region 188663</p></bio><email xlink:type="simple">makarov.vg@doclinika.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский институт фармации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.-Petersburg Institute of Pharmacy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Акционерное общество «Научно-производственное объединение «ДОМ ФАРМАЦИИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Joint Stock Company “Scientific and Production Association HOME OF PHARMACY”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>03</month><year>2023</year></pub-date><volume>13</volume><issue>1</issue><fpage>60</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фаустова Н.М., Петлицкая С.С., Ампилогова И.Н., Карлина М.В., Макарова М.Н., Макаров В.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Фаустова Н.М., Петлицкая С.С., Ампилогова И.Н., Карлина М.В., Макарова М.Н., Макаров В.Г.</copyright-holder><copyright-holder xml:lang="en">Faustova N.M., Petlitskaya S.S., Ampilogova I.N., Karlina M.V., Makarova M.N., Makarov V.G.</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.vedomostincesmp.ru/jour/article/view/466">https://www.vedomostincesmp.ru/jour/article/view/466</self-uri><abstract><p>Ингибиторы нейраминидазы — класс препаратов, применяемый для лечения инфекции, вызываемой вирусами гриппа. Для скрининга потенциальных ингибиторов  нейраминидазы  представляет  интерес  разработка  in  vitro  методик без использования вирусов в реакции. Цель работы: разработать  и  валидировать  методику  определения  ингибирующего   действия  веществ  по   отношению к ферменту нейраминидаза (КФ 3.2.1.18) с использованием флуоресцентного субстрата 2’-4(4-метилумбеллиферил)-α-D-N-ацетилнейраминовой кислоты (4MU-NANA) in vitro на примере хиноидных пигментов — потенциальных ингибиторов нейраминидазы. Материалы и методы: в основе метода лежит ферментативное  расщепление  субстрата   4MU-NANA   ферментом   нейраминидазой с образованием флуоресцентного маркера 4-метилумбеллиферона с детекцией при длинах волн возбуждения/испускания 360/450 нм. Результаты: методика валидирована по параметрам: специфичность, линейность, точность, прецизионность. Линейность методики составила 0,31–80  мкМ  4-метилумбеллиферона. Точность для четырех уровней концентраций, включая нижний предел количественного определения, находилась в пределах 87–114%, т.е. относительная погрешность при оценке точности не превышала 15%. Внутридневная прецизионность составила 1,5–10,4%, междневная прецизионность 2,3–9,6%. При оценке ингибирующего действия на примере занамивира гидрата (0,6–150 нМ) точность составила 89–120%, прецизионность 3,1–11,0%. Для контрольных образцов занамивира гидрата значение IC50 составило 27 ± 3 нМ,  для  осельтамивира IC50 = 16 ± 2 нМ. Для тестирования субстанций допустимо использовать растворители: диметилсульфоксид 50%,  полисорбата 80  раствор 5%,  этанол 50% и метанол 50 и 100%. Для соединений, нерастворимых в перечисленных растворителях, предложено получение комплексов включения с 2-гидроксипропил-β-циклодекстрином. Для исследуемого вещества биснафтазарина, хиноидного пигмента природного происхождения, IC50 составила 273 ± 28 нМ. Заключение: методика характеризуется удовлетворительной точностью и воспроизводимостью и может быть использована для скрининга потенциальных ингибиторов нейраминидазы. Для тестирования нерастворимых веществ предложено их применение в виде комплексов включения с циклодекстринами.</p></abstract><trans-abstract xml:lang="en"><p>Neuraminidase inhibitors are a class of antivirals used to  treat  influenza  infections. Screening assays for potential neuraminidase inhibitors would benefit from  the development of in vitro procedures that do not require handling viruses. The aim of the study was to  develop  and  validate  a  procedure  for  in  vitro  determination of inhibitory effects on neuraminidase (EC 3.2.1.18), using 2’-4(methylumbelliferyl)-α-D-N-acetylneuraminic acid (4MU-NANA) as a fluorogenic substrate and quinonoid pigments, potential neuraminidase inhibitors, as a case study. Materials and methods: the method is based on neuraminidase cleavage of 4MU-NANA   to release fluorescent 4-methylumbelliferone, which is detected at the excitation  and emission wavelengths of 360 and 450 nm, respectively. Results: the procedure was validated for specificity, range, accuracy, and precision. It remained linear over the range of 0.31–80 μM of 4-methylumbelliferone. The accuracy for four concentration levels (including the LLOQ) was 87–114%; i.e., the relative error of accuracy evaluation was less than 15%. The intra- and inter-day precision ranged from 1.5 to 10.4% and from 2.3 to 9.6%, respectively. Inhibitory effect evaluation using zanamivir hydrate (0.6–150 nM) demonstrated the accuracy of 89–120% and the precision  of 3.1–11.0%. The IC50 values for positive controls (zanamivir hydrate and oseltamivir) were 27 ± 3 and 16 ± 2 nM, respectively. The following solvents may be used: 50% dimethyl sulfoxide, 5% Polysorbate 80, 50% ethanol, 50 and 100% methanol. If  a compound is insoluble in the solvents, it is possible to form inclusion complexes with 2-hydroxypropyl-β-cyclodextrin. For bisnaphthazarin, the natural quinonoid pigment used in the study, the IC50 amounted to 273 ± 28 nМ. Conclusion: the procedure demonstrated adequate accuracy and reproducibility and is recommended  for screening for potential neuraminidase inhibitors. In order to use the procedure for insoluble substances, the authors suggest forming inclusion complexes with cyclodextrins.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нейраминидаза</kwd><kwd>осельтамивир</kwd><kwd>занамивира гидрат</kwd><kwd>ингибирующее действие</kwd><kwd>2-гидроксипропил-β-циклодекстрин</kwd><kwd>биснафтазарин</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neuraminidase</kwd><kwd>oseltamivir</kwd><kwd>zanamivir hydrate</kwd><kwd>inhibitory effect</kwd><kwd>2-hydroxypropyl-β-cyclodextrin</kwd><kwd>bisnaphthazarin</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают признательность и благодарность ст. научн. сотруднику Ю.В. Дадали (ЗАО «Санкт-Петербургский институт фармации») за получение и предоставление для тестирования 1% комплекса биснафтазарина с 2-гидроксипропил-β-циклодекстрином.</funding-statement><funding-statement xml:lang="en">The authors are grateful to Yu.V. 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