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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">pmedpharm</journal-id><journal-title-group><journal-title xml:lang="ru">Фармация и фармакология</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacy &amp; Pharmacology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2307-9266</issn><issn pub-type="epub">2413-2241</issn><publisher><publisher-name>Pyatigorsk Medical and Pharmaceutical Institute - branch of Volgograd State Medical Univer</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.19163/2307-9266-2025-13-3-157-170</article-id><article-id custom-type="elpub" pub-id-type="custom">pmedpharm-1687</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>ОРИГИНАЛЬНАЯ СТАТЬЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Поиск веществ с атипичной антипсихотической активностью среди производных бензимидазола</article-title><trans-title-group xml:lang="en"><trans-title>Screening benzimidazole derivatives for atypical antipsychotic activity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0079-853X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калитин</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalitin</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, доцент кафедры фармакологии и биоинформатики ФГБОУ ВО ВолгГМУ Минздрава России; старший научный сотрудник лаборатории метаботропных лекарственных средств НЦИЛС ФГБОУ ВО ВолгГМУ Минздрава России; старший научный сотрудник лаборатории «Синаптическая биология» (Приоритет-2030) ФГАОУ ВО «Южный федеральный университет». </p><p>1. Россия, 400066, г. Волгоград, пл. Павших Борцов, д. 1.</p><p>2. Россия, 400087, г. Волгоград, ул. Новороссийская, д. 39.</p><p>3. Россия, 344006, г. Ростов-на-Дону, ул. Большая Садовая, д. 105/42.</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Medicine), Assistant Professor, Assistant Professor of the Department of Pharmacology and Bioinformatics, senior researcher at the Laboratory of Metabotropic Drugs of the Scientific Center for Innovative Drugs, Volgograd State Medical University; Senior Researcher at the Laboratory of Synaptic Biology (Priority 2030) of the Southern Federal University. </p><p>1. 1 Pavshikh Bortsov Sq., Volgograd, Russia, 400066. </p><p>2. 39 Novorossiyskaya Str., Volgograd, Russia, 400087.</p><p>3. 105/42 Bolshaya Sadovaya Str., Rostov-on-Don, Russia, 344006. </p></bio><email xlink:type="simple">kkonst8@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/0000-0002-0429-905X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муха</surname><given-names>О. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukha</surname><given-names>O. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры фармакологии и биоинформатики ФГБОУ ВО ВолгГМУ Минздрава России; младший научный сотрудник лаборатории метаботропных лекарственных средств НЦИЛС ФГБОУ ВО ВолгГМУ Минздрава России. </p><p>1. Россия, 400066, г. Волгоград, пл. Павших Борцов, д. 1.</p><p>2. Россия, 400087, г. Волгоград, ул. Новороссийская, д. 39.</p></bio><bio xml:lang="en"><p>Assistant of the Department of Pharmacology and Bioinformatics, junior researcher at the Laboratory of Metabotropic Drugs of the Scientific Center for Innovative Drugs, Volgograd State Medical University. Researcher at the Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University. </p><p>1. 1 Pavshikh Bortsov Sq., Volgograd, Russia, 400066. </p><p>2. 39 Novorossiyskaya Str., Volgograd, Russia, 400087.</p></bio><email xlink:type="simple">olay.myha14@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/0000-0002-0242-6270</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Войнов</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Voynov</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, главный научный сотрудник лаборатории «Синаптическая биология» (Приоритет-2030) ФГАОУ ВО «Южный федеральный университет». </p><p>Россия, 344006, г. Ростов-на-Дону, ул. Большая Садовая, д. 105/42.</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Biology), Chief Researcher at the Laboratory of Synaptic Biology (Priority 2030) of the Southern Federal University. </p><p>105/42 Bolshaya Sadovaya Str., Rostov-on-Don, Russia, 344006. </p></bio><email xlink:type="simple">vvoynov@sfedu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное образовательное учреждение высшего образования «Волгоградский государственный медицинский университет» Министерства здравоохранения Российской Федерации.&#13;
2. Научный центр инновационных лекарственных средств федерального государственного бюджетного образовательного учреждения высшего образования «Волгоградский государственный медицинский университет» Министерства здравоохранения Российской Федерации.&#13;
3. Федеральное государственное автономное образовательное учреждение высшего образования «Южный федеральный университет».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Volgograd State Medical University.&#13;
2 Scientific Center for Innovative Drugs.&#13;
3 Southern Federal University.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>1. Федеральное государственное бюджетное образовательное учреждение высшего образования «Волгоградский государственный медицинский университет» Министерства здравоохранения Российской Федерации.&#13;
2. Научный центр инновационных лекарственных средств федерального государственного бюджетного образовательного учреждения высшего образования «Волгоградский государственный медицинский университет» Министерства здравоохранения Российской Федерации.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>1. Volgograd State Medical University.&#13;
2 Scientific Center for Innovative Drugs.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное автономное образовательное учреждение высшего образования «Южный федеральный университет».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Southern Federal University.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>02</day><month>08</month><year>2025</year></pub-date><volume>13</volume><issue>3</issue><fpage>157</fpage><lpage>170</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Калитин К.Ю., Муха О.Ю., Войнов В.Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Калитин К.Ю., Муха О.Ю., Войнов В.Б.</copyright-holder><copyright-holder xml:lang="en">Kalitin K.Y., Mukha O.Y., Voynov V.B.</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.pharmpharm.ru/jour/article/view/1687">https://www.pharmpharm.ru/jour/article/view/1687</self-uri><abstract><p>Разработка инновационных антипсихотических препаратов является одной из ключевых задач современной фармакологии. Производные бензимидазола, благодаря их уникальным химическим свойствам, демонстрируют широкий спектр нейропсихотропных эффектов и представляют высокий потенциал в качестве антипсихотических агентов. Применение методов биоинформатики позволяет оптимизировать процесс идентификации соединений с высокой аффинностью к целевым рецепторам.</p><sec><title>Цель</title><p>Цель. Провести поиск и оценку производных бензимидазола с атипичной антипсихотической активностью, используя методы QSAR-анализа и фармакофорного моделирования с последующей экспериментальной проверкой in vivo на доклинических моделях психотических расстройств.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Были построены QSAR-модели на основе данных о 2615 соединениях из базы данных CheMBL. Фармакофорное моделирование проводилось на основе структуры 5-HT2A рецептора (PDB ID: 6A94). Антипсихотическая активность наиболее перспективного соединения была оценена in vivo в тестах с апоморфином на крысах и мышах.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе исследования были разработаны и протестированы модели машинного обучения для предсказания антипсихотической активности производных бензимидазола. Наилучшие результаты показали нейронные сети (MAE=0,019) и метод случайного леса (MAE=0,020), которые показали высокую точность в прогнозировании активности. Фармакофорное моделирование взаимодействия с 5-HT2A рецептором позволило выделить перспективное соединение для дальнейшего тестирования. Соединение РУ-31 продемонстрировало значительное (p &lt;0,05) снижение вертикализации у мышей (ЭД80=10,16 мг/кг внутрибрюшинно), а также высокую эффективность при введении малых пресинаптических доз апоморфина (число зеваний снизилось на 49,3% по сравнению с контролем; p &lt;0,05).</p></sec><sec><title>Заключение</title><p>Заключение. Соединение РУ-31 проявило активность в тестах вертикализации и при использовании малых пресинаптических доз апоморфина, что может указывать на его атипичное антипсихотическое действие. Производное бензимидазола РУ-31 является перспективным кандидатом для дальнейшего изучения в рамках разработки новых атипичных антипсихотиков.</p></sec></abstract><trans-abstract xml:lang="en"><p>The development of innovative antipsychotic drugs is one of the key tasks of modern pharmacology. Due to their unique chemical properties, benzimidazole derivatives demonstrate diverse neuropsychotropic effects, highlighting their high potential as antipsychotic agents. Bioinformatics methods enable optimization of the process of identifying compounds with high affinity for target receptors.</p><sec><title>The aim</title><p>The aim. To identify and evaluate benzimidazole derivatives with atypical antipsychotic activity using QSAR analysis and pharmacophore modeling, followed by in vivo experimental testing in preclinical models of psychotic disorders.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. QSAR models were constructed based on data from 2615 compounds from the ChEMBL database. Pharmacophore modeling was performed based on the structure of the 5-HT2A receptor (PDB ID: 6A94). The antipsychotic activity of the most promising compound was assessed in vivo using tests with apomorphine in rats and mice.</p></sec><sec><title>Results</title><p>Results. Machine learning models were developed and tested to predict the antipsychotic activity of benzimidazole derivatives. The Neural Networks (MAE=0.019) and Random Forest (MAE=0.020) algorithms demonstrated the highest prediction performance. Pharmacophore modeling of interaction with the 5-HT2A receptor identified a promising compound for further testing. Compound RU-31 demonstrated significant reduction (p &lt;0.05) in climbing behavior in mice (ED80=10.16 mg/kg intraperitoneally) and high efficacy when administered with low presynaptic doses of apomorphine (yawning frequency decreased by 49,3% compared to control, p  &lt;0.05).</p></sec><sec><title>Conclusions</title><p>Conclusions. Compound RU-31 showed activity in the climbing test and in the test with low presynaptic doses of apomorphine, suggesting potential atypical antipsychotic effects. Benzimidazole derivative RU-31 is a promising candidate for further investigation in the development of novel atypical antipsychotics.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>QSAR</kwd><kwd>фармакофорное моделирование</kwd><kwd>производные бензимидазола</kwd><kwd>антипсихотическая активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>QSAR</kwd><kwd>pharmacophore modeling</kwd><kwd>benzimidazole derivatives</kwd><kwd>antipsychotic activity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Данное исследование не имело финансовой поддержки от сторонних организаций.</funding-statement><funding-statement xml:lang="en">This study did not have financial support from third-party organizations.</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">Shah A.A., Iqbal S.Z. 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