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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2021-16-1-76-87</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1688</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="en"><subject>ANALYTICAL METHODS IN CHEMISTRY AND CHEMICAL TECHNOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АНАЛИТИЧЕСКИЕ МЕТОДЫ В ХИМИИ И ХИМИЧЕСКОЙ ТЕХНОЛОГИИ</subject></subj-group></article-categories><title-group><article-title>Comparing the original and biosimilar biotherapeutics of the monoclonal antibody eculizumab by intact mass measurement and middle-up mass spectrometry analysis</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнение оригинального и биоаналогичного препаратов моноклонального антитела экулизумаб методами масс-спектрометрии интактного белка и «с середины вверх»</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5541-5575</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дегтерев</surname><given-names>М. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Degterev</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дегтерев Максим Борисович, научный сотрудник лаборатории физико-химических методов</p><p>601125, Владимирская обл., Петушинский район, пос. Вольгинский, ул. Владимирская, д. 14</p></bio><bio xml:lang="en"><p>Maksim B. Degterev, Research Scientist, Physico-Chemical Methods Laboratory</p><p>14, Vladimirskaya ul., Volginskiy, Vladimir oblast, 601125</p></bio><email xlink:type="simple">degterev@ibcgenerium.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/0000-0002-6532-7835</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шукуров</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Shukurov</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шукуров Рахим Рахманкулыевич, начальник отдела аналитических методов</p><p>601125, Владимирская обл., Петушинский район, пос. Вольгинский, ул. Владимирская, д. 14</p></bio><bio xml:lang="en"><p>Rakhim R. Shukurov, Head of the Analytical Methods Department</p><p>14, Vladimirskaya ul., Volginskiy, Vladimir oblast, 601125</p></bio><email xlink:type="simple">shukurov@ibcgenerium.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Международный биотехнологический центр «Генериум»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>International Biotechnology Center Generium</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>18</day><month>03</month><year>2021</year></pub-date><volume>16</volume><issue>1</issue><fpage>76</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Degterev M.B., Shukurov R.R., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Дегтерев М.Б., Шукуров Р.Р.</copyright-holder><copyright-holder xml:lang="en">Degterev M.B., Shukurov R.R.</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.finechem-mirea.ru/jour/article/view/1688">https://www.finechem-mirea.ru/jour/article/view/1688</self-uri><abstract><sec><title>Objectives</title><p>Objectives. In this biosimilar research, we compare the monoclonal antibody eculizumab obtained from different drugs [original Soliris® (Alexion Pharmaceuticals) and candidate Elizaria® (Generium)] by intact mass measurement and middle-up mass spectrometry analysis to enhance the role of mass spectrometry methods in biopharmaceutical development processes.</p></sec><sec><title>Methods</title><p>Methods. The intact mass measurement is performed using a high-resolution ESI-MS. The middle-up analysis is performed by reversed-phase high-performance liquid chromatography with ESI-MS detection, subsequent IdeS treatment of antibodies, and disulfide bond reduction.</p></sec><sec><title>Results</title><p>Results. We have shown some small differences between the original and candidate drugs in the minor glycans level. Man5 glycan is only found in the original Soliris, and G0 is only found in the Elizaria. Glycation sites are also found in the light chain and Fd subunits of the original Soliris. The glycation level does not exceed 4.4%. The non-clipped C-end lysine level and G0F glycan levels are slightly lower in the original Soliris. All registered differences are not crucial for eculizumab’s quality and do not affect its effectiveness and preclinical safety. Generally, the results show a high level of similarity between the original and candidate drugs.</p></sec><sec><title>Conclusions</title><p>Conclusions. The comparative mass spectrometry analysis of eculizumab in the original Soliris and Elizaria allows us to estimate their high degree of similarity by molecular masses and major modification profiles.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цели</title><p>Цели. В целях исследования биоаналогичности, а также внедрения масс-спектрометрии в процессы биофармацевтической разработки было необходимо провести сравнительное масс-спектрометрическое исследование моноклонального антитела экулизумаб из оригинального лекарственного препарата «Солирис»® и кандидатного «Элизария»® производства АО «ГЕНЕРИУМ» методами измерения молекулярных масс интактных молекул (intact mass measurement) и их субъединиц (middle-up).</p></sec><sec><title>Методы</title><p>Методы. Измерение масс интактных белков и оценку долей их модификаций проводили при помощи инфузионной масс-спектрометрии высокого разрешения с электрораспылительной ионизацией. Измерение молекулярных масс субъединиц и оценку долей их модификаций проводили методом обращенно-фазовой ВЭЖХ, совмещенной с масс-спектрометрией высокого разрешения с электрораспылительной ионизацией после предварительного расщепления антител ферментом IdeS и разрыва дисульфидных связей.</p></sec><sec><title>Результаты</title><p>Результаты. Нами был зарегистрирован ряд небольших отличий в содержании некоторых минорных гликанов: олигосахарид Man5 был обнаружен только в белке оригинального препарата, а G0 – только в кандидатном белке; в субъединицах LC и Fd оригинального белка были зарегистрированы сайты гликирования с содержанием данной модификации не выше 4.4%. Также доли неотщепленного С-концевого лизина и гликана G0F в оригинальном белке были несколько ниже, чем в кандидатном. Однако зарегистрированные отличия не являлись критическими параметрами качества экулизумаба и не влияли на активность молекул и их безопасность в доклинических испытаниях, и, в целом, сравниваемые молекулы продемонстрировали высокое сходство.</p></sec><sec><title>Выводы</title><p>Выводы. Сравнительный хромато-масс-спектрометрический анализ экулизумаба из оригинального и кандидатного препаратов позволил установить высокую степень сопоставимости сравниваемых молекул по молекулярным массам и по профилям мажорных модификаций. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>экулизумаб</kwd><kwd>масс-спектрометрия</kwd><kwd>посттрансляционные модификации</kwd><kwd>биоаналогичность</kwd><kwd>гликозилирование</kwd><kwd>ВЭЖХ-МС</kwd><kwd>intact mass measurement</kwd><kwd>middle-up</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Eculizumab</kwd><kwd>mass spectrometry</kwd><kwd>posttranslational modifications</kwd><kwd>biosimilar drugs</kwd><kwd>glycosylation</kwd><kwd>high-performance liquid chromatography-mass spectrometry</kwd><kwd>intact mass measurement</kwd><kwd>middle-up analysis</kwd><kwd>monoclonal antibody</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы статьи благодарят С. Тарана, ведущего эксперта Отдела аналитических методов, и М. Смолова, начальника Лаборатории физико-химических методов «МБЦ «Генериум», за помощь в подготовке текста статьи.</funding-statement><funding-statement xml:lang="en">The authors thank S. Taran, Lead Expert of the Department of Analytical Methods, and M. Smolov, Head of the Laboratory of Physicochemical Methods of IBC Generium, for their help with preparing the manuscript.</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">Dillon T.M., Bondarenko P.V., Rehder D.S., Pipes G.D., Kleemann G.R., Ricci M.S. Optimization of a reversed-phase high-performance liquid chromatography/mass spectrometry method for characterizing recombinant antibody heterogeneity and stability. J. Chromatogr. 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