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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">phkinetica</journal-id><journal-title-group><journal-title xml:lang="ru">Фармакокинетика и Фармакодинамика</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacokinetics and Pharmacodynamics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2587-7836</issn><issn pub-type="epub">2686-8830</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/2587-7836-2026-3-55-68</article-id><article-id custom-type="edn" pub-id-type="custom">NVUXBI</article-id><article-id custom-type="elpub" pub-id-type="custom">phkinetica-551</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>ИССЛЕДОВАНИЯ МЕХАНИЗМА ДЕЙСТВИЯ ЛЕКАРСТВЕННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>STUDIES OF THE MECHANISM OF ACTION OF DRUGS</subject></subj-group></article-categories><title-group><article-title>Периферические мишени 5-HT3A и DP2 как основа анальгетического действия нового производного изохинолина G-104</article-title><trans-title-group xml:lang="en"><trans-title>Peripheral 5-HT3A and DP2 targets as the basis for the analgesic action of the novel isoquinoline derivative G-104</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3401-7970</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пузанов-Тюрин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Puzanov-Tyurin</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пузанов-Тюрин Даниил Александрович — аспирант, м. н. с., химик-эксперт лаборатории по исследованию и контролю качества лекарственных средств</p><p>Саратов </p></bio><bio xml:lang="en"><p>Daniil A. Puzanov-Tyurin — Postgraduate Student, Junior Research Fellow, Expert Chemist at the Laboratory for Research and Quality Control of Medicines</p><p>Saratov </p></bio><email xlink:type="simple">daniilpuzanov27@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/0000-0001-7853-0333</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фомина</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fomina</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фомина Юлия Андреевна — к. х. н., начальник лаборатории по исследованию и контролю качества лекарственных средств</p><p>Саратов </p></bio><bio xml:lang="en"><p>Yulia A. Fomina — PhD, Cand. Sci. (Chem.), Head of the Laboratory for Research and Quality Control of Medicines</p><p>Saratov </p></bio><email xlink:type="simple">fominaya@mail.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/0000-0003-3172-0804</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калюта</surname><given-names>Т. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalyuta</surname><given-names>T. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калюта Татьяна Юрьевна — к. м. н., доцент, директор научно-образовательного центра клинических и биомедицинских исследований</p><p>Саратов </p></bio><bio xml:lang="en"><p>Tatyana Y. Kalyuta — PhD, Cand. Sci. (Med.), Associate Professor, Director of the Scientific and Educational Center for Clinical and Biomedical Research</p><p>Saratov </p></bio><email xlink:type="simple">tatianakaluta@yandex.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/0000-0001-8897-1730</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смоляк</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Smoliak</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Смоляк Андрей Алексеевич — к. х. н., с. н. с. лаборатории синтеза активных реагентов</p><p>Пермь </p></bio><bio xml:lang="en"><p>Andrey A. Smoliak — PhD, Cand. Sci. (Chem.), Senior Researcher at the Laboratory of active reagent synthesis</p><p>Perm </p></bio><email xlink:type="simple">smoliak.a@itcras.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/0000-0003-2018-2908</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Астафьева</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Astaf’eva</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Астафьева Светлана Асылхановна — к. т. н., заведующий лабораторией структурно-химической модификации полимеров</p><p>Пермь </p></bio><bio xml:lang="en"><p>Svetlana A. Astaf’eva — PhD, Cand. Sci. (Engin.), Head of the Laboratory of Structural and Chemical Polymer Modification</p><p>Perm </p></bio><email xlink:type="simple">astafeva.s@itcras.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/0000-0001-9102-9711</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Решетова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Reshetova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Решетова Елена Николаевна — к. х. н., с. н. с. лаборатории синтеза активных реагентов</p><p>Пермь </p></bio><bio xml:lang="en"><p>Elena N. Reshetova — PhD, Cand. Sci. (Chem.), Senior Researcher at the Laboratory of active reagent synthesis</p><p>Perm </p></bio><email xlink:type="simple">lenire@yandex.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/0000-0003-2538-535X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стрельников</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Strelnikov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стрельников Владимир Николаевич — д. т. н., член-корр. РАН, директор Института технической химии</p><p>Пермь </p></bio><bio xml:lang="en"><p>Vladimir N. Strelnikov — Dr. Sci. (Engin.), Corresponding Member of the Russian Academy of Sciences, Director</p><p>Perm </p></bio><email xlink:type="simple">svn@itcras.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/0000-0003-0344-4419</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федонников</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedonnikov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федонников Александр Сергеевич — д. м. н., доцент, директор института общественного здоровья, здравоохранения и гуманитарных проблем медицины, проректор по научной работе</p><p>Саратов</p></bio><bio xml:lang="en"><p>Alexander S. Fedonnikov — Dr. Sci. (Med.), Associate Professor; Director of the Institute of Public Health and Humanitarian Problems of Medicine, Vice-Rector for Research</p><p>Saratov </p></bio><email xlink:type="simple">fedonnikov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Саратовский государственный медицинский университет им. В. И. Разумовского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saratov State Medical University named after V. I. Razumovsky</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт технической химии Уральского отделения Российской академии наук — филиал ФГБУН «Пермский федеральный исследовательский центр Уральского отделения Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Technical Chemistry Ural Branch of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>16</day><month>10</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>55</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пузанов-Тюрин Д.А., Фомина Ю.А., Калюта Т.Ю., Смоляк А.А., Астафьева С.А., Решетова Е.Н., Стрельников В.Н., Федонников А.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Пузанов-Тюрин Д.А., Фомина Ю.А., Калюта Т.Ю., Смоляк А.А., Астафьева С.А., Решетова Е.Н., Стрельников В.Н., Федонников А.С.</copyright-holder><copyright-holder xml:lang="en">Puzanov-Tyurin D.A., Fomina Y.A., Kalyuta T.Y., Smoliak A.A., Astaf’eva S.A., Reshetova E.N., Strelnikov V.N., Fedonnikov A.S.</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.pharmacokinetica.ru/jour/article/view/551">https://www.pharmacokinetica.ru/jour/article/view/551</self-uri><abstract><p>Актуальность. Поиск мощного и одновременно безопасного обезболивающего средства, лишённого недостатков опиоидов и нестероидных противовоспалительных препаратов, остаётся одной из нерешённых задач фармакологии. Синтетическое производное изохинолина — 6-(3,3-диметил- 3,4-дигидроизохинолин-1-ил)аминогексановая кислота (G-104) продемонстрировало выраженную анальгетическую активность в доклинических моделях, однако его молекулярные мишени и механизм действия до настоящего времени оставались неизвестными.Цель. Идентификация возможных периферических мишеней 5-HTЗА и DP2 и механизма анальгетического действия нового производного изохинолина с использованием комплексного in silico анализа.Методы. Виртуальный скрининг биомишеней (SwissTargetPrediction, SEA, TargetNet, PPB2), молекулярный докинг (Glide) и молекулярная динамика (GROMACS). Результаты. В сочетании с ранее полученными экспериментальными данными предложена гипотеза о возможном механизме обезболивающего эффекта G-104. В качестве потенциальных мишеней отобраны серотониновый рецептор 5-HTЗА и простагландиновый рецептор DP₂. Молекулярный докинг показал, что G-104 формирует с обоими рецепторами характерные для антагонистов комплексы, а молекулярная динамика для DP₂ подтвердила стабильность позы в рамках расчётной траектории. Такой двойной периферический механизм — одновременное подавление серотониновой модуляции боли и провоспалительного сигналинга простагландина D₂ — может согласовываться с мощным и длительным обезболиванием, наблюдающимся in vivo, и предсказывает низкий риск центральных и вегетативных побочных эффектов.Заключение. Полученные результаты представляют G-104 в качестве потенциально эффективного мультитаргетного анальгетика и открывают путь к дальнейшим доклиническим исследованиям.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. The search for a potent and safe analgesic devoid of the disadvantages of opioids and non steroidal anti inflammatory drugs remains an unresolved challenge in pharmacology. The synthetic isoquinoline derivative 6 (3,3 dimethyl 3,4 dihydroisoquinolin 1 yl)aminohexanoic acid (G-104) has demonstrated marked analgesic activity in preclinical models; however, its molecular targets and mechanism of action have remained unidentified.Objective. To predict the potential peripheral targets 5-HTЗА and DP2 and analgesic mechanism of this novel isoquinoline derivative using a comprehensive in silico analysis.Methods. Target prediction (SwissTargetPrediction, SEA, TargetNet, PPB2), molecular docking (Glide), and molecular dynamics simulations (GROMACS) were performed.Results. In combination with previously obtained experimental data, a hypothesis on the possible mechanism of G-104 analgesia is proposed. The serotonin 5-HT ЗА receptor and the prostaglandin DP₂ receptor were selected as potential targets. Docking revealed that G-104 forms complexes with both receptors characteristic of antagonists, and molecular dynamics for DP₂ confirmed the stability of the binding pose throughout the simulation trajectory. This dual peripheral mechanism—simultaneous inhibition of serotonergic pain modulation and pro inflammatory prostaglandin D₂ signaling—may be consistent with potent and prolonged analgesia observed in vivo and predicts a low risk of central and autonomic adverse effects.Conclusion. The obtained results position G-104 as a potentially effective multitarget analgesic and pave the way for further preclinical investigations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>6-(3</kwd><kwd>3-диметил-3</kwd><kwd>4-дигидроизохинолин-1-ил)аминогексановая кислота</kwd><kwd>анальгетическая активность</kwd><kwd>фармакодинамика</kwd><kwd>молекулярное моделирование</kwd><kwd>простагландиновый рецептор</kwd><kwd>серотониновый рецептор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>6-(3</kwd><kwd>3-dimethyl-3</kwd><kwd>4-dihydroisoquinoline-1-yl)aminohexanoic acid</kwd><kwd>analgesic activity</kwd><kwd>pharmacodynamics</kwd><kwd>molecular modeling</kwd><kwd>prostaglandin receptor</kwd><kwd>serotonin receptor</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Данная работа выполнена в рамках реализации тематики государственного задания Минздрава России «Разработка нового неопиоидного лекарственного средства для лечения хронических болевых синдромов у пожилых»; ЕГИСУ НИОКТР № 125061607031-8 от 12.01.2026.</funding-statement><funding-statement xml:lang="en">This work was performed as part of the implementation of the state assignment of the Ministry of Health of the Russian Federation "Development of a new non-opioid drug for the treatment of chronic pain syndromes in the elderly"; EGISU R&amp;D No. 125061607031-8 dated 12.01.2026.</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">Harirforoosh S, Asghar W, Jamali F. 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