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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Problems of Virology</journal-id><journal-title-group><journal-title xml:lang="en">Problems of Virology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы вирусологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0507-4088</issn><issn publication-format="electronic">2411-2097</issn><publisher><publisher-name xml:lang="en">Central Research Institute for Epidemiology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">12230</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Development of Diagnostic Test System Based on Fluorescent Polarization Immunoassay Method for Detection of Antibodies to HCV Nucleocapsid Protein</article-title><trans-title-group xml:lang="ru"><trans-title>Разработка диагностической тест-системы, основанной на методе поляризационного флюоресцентного иммуноанализа , для выявления антител к нуклеокапсидному белку вируса гепатита С</trans-title></trans-title-group></title-group><pub-date date-type="pub" iso-8601-date="2013-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2013</year></pub-date><volume>58</volume><issue>2</issue><issue-title xml:lang="en">VOL 58, NO2 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 58, №2 (2013)</issue-title><fpage>43</fpage><lpage>46</lpage><history><date date-type="received" iso-8601-date="2023-06-09"><day>09</day><month>06</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Sharyshev A.A., Bazhenov A.I., Shibnev V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Шарышев А.А., Баженов А.И., Шибнев В.А.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Sharyshev A.A., Bazhenov A.I., Shibnev V.A.</copyright-holder><copyright-holder xml:lang="ru">Шарышев А.А., Баженов А.И., Шибнев В.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://virusjour.crie.ru/jour/article/view/12230">https://virusjour.crie.ru/jour/article/view/12230</self-uri><abstract xml:lang="en"><p>The antigen activity of the synthetic fluorescently labeled peptides, overlapping immunoresponsive epitops a.a. 7-19, 20-34 from N-end part and a.a. 73-85 from the central area of the nucleocapsid protein of C hepatitis virus, was tested using the method of fluorescent polarization immunoassay (FPIA) with 40 samples of the blood serum of patients with viral C hepatitis. A comparative study of analytic characteristics of FPIA method was performed, based on the application of synthesized peptides, as well as of the commercial ELISA test system (BEST anti-HCV-test 4, Vector Best Ltd.). The performed research revealed that the developed method has a high specificity and sensitivity level. The comparability of summary FPIA results with the commercial ELISA test system was 85%, which evidences the prospects of further research in this direction. The principal possibility of the application of the polarization fluorescent immunoassay for the determination of antibodies to the nucleocapsid protein of the C hepatitis virus in clinical serum samples was demonstrated.</p></abstract><trans-abstract xml:lang="ru"><p>При помощи поляризационного флюоресцентного иммуноанализа (ПФИА) изучена антигенная активность синтетических флюоресцентно-меченных пептидов, перекрывающих иммунореактивные участки из аминокислотных остатков (а. о.) 7-19, 20-34 из N-концевой части и а. о. 73-85 из центральной области нуклео-капсидного белка вируса гепатита С (ВГС). На основе данных пептидов разработана ПФИА-тест-система для выявления антител к нуклеокапсидному белку ВГС. Проведено сравнительное изучение аналитических характеристик ПФИА-тест-системы и коммерческой иммуноферментной тест-системы для выявления анти-ВГС. Исследования показали, что разработанный метод обладает 85% чувствительностью и высокой специфичностью относительно тест-системы сравнения. Полученные результаты свидетельствуют O принципиальной возможности применения метода ПФИА для определения антител к нуклеокапсидному белку ВГС в клинических образцах сывороток крови.</p></trans-abstract><kwd-group xml:lang="en"><kwd>HCV virus</kwd><kwd>HCV nucleocapsid protein</kwd><kwd>epitops</kwd><kwd>synthetics peptides</kwd><kwd>fluorescent polarization immunoassay</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирус гепатита С</kwd><kwd>нуклеокапсидный белок</kwd><kwd>эпитопы</kwd><kwd>синтетические пептиды</kwd><kwd>метод поляризационного флюоресцентного иммуноанализа</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chiba J., Ohba H., Matsuura Y. et al. Serodiagnosis of hepatitis С virus (HCV) infection with an HCV core protein molecularly expressed by a recombinant baculovoirus. Proc. Natl. Acad. Sci. 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