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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">epilepsia</journal-id><journal-title-group><journal-title xml:lang="en">Epilepsy and paroxysmal conditions</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпилепсия и пароксизмальные состояния</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2077-8333</issn><issn pub-type="epub">2311-4088</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2077-8333/epi.par.con.2022.118</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-795</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>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group></article-categories><title-group><article-title>The role of glutamine synthetase expression and cystine/glutamate transporter (SLC7A11, xCT) in epilepsy pathogenesis of patients with supratentorial brain gliomas</article-title><trans-title-group xml:lang="ru"><trans-title>Роль экспрессии глутамин-синтетазы и транспортера цистин/глутамата (SLC7A11, xCT) в патогенезе развития эпилепсии у пациентов с супратенториальными глиомами головного мозга</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1545-8877</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прокудин</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokudin</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Прокудин Михаил Юрьевич – к.м.н., преподаватель кафедры нервных болезней им. М.И. Аствацатурова</p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 4021-4432</p></bio><bio xml:lang="en"><p>Mikhail Yu. Prokudin – MD, PhD, Faculty Member, Chair of Nervous Diseases</p><p>Saint Petersburg, Russia</p><p>RSCI SPIN-code: 4021-4432</p></bio><email xlink:type="simple">prmihail@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/0000-0002-8459-2466</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартынов</surname><given-names>Б. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Martynov</surname><given-names>B. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мартынов Борис Владимирович – д.м.н., доцент, врач-нейрохирург </p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 9953-3997.</p></bio><bio xml:lang="en"><p>Boris V. Martynov – Dr. Med. Sc., Associate Professor, Neurosurgeon</p><p>Saint Petersburg</p><p>RSCI SPIN-code: 9953-3997</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3125-1713</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковенко</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovenko</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковенко Андрей Игоревич – к.м.н., начальник патоморфологического отдела Центральной патологоанатомической лаборатории</p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 5937-8120.</p></bio><bio xml:lang="en"><p>Andrey I. Yakovenko – MD, PhD, Head of Pathomorphological Department, Central Pathology Laboratory</p><p>Saint Petersburg</p><p>RSCI SPIN-code: 5937-8120.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8988-3011</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Литвиненко</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Litvinenko</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Литвиненко Игорь Вячеславович – д.м.н., профессор, начальник кафедры нервных болезней им. М.И. Аствацатурова </p><p>Санкт-Петербург</p><p>WoS ResearcherID: F-9120-2013; </p><p>Scopus Author ID: 35734354000; </p><p>РИНЦ SPIN-код: 6112- 2792.</p></bio><bio xml:lang="en"><p>Igor V. Litvinenko – Dr. Med. Sc., Professor, Head of Chair of Nervous Diseases</p><p>Saint Petersburg</p><p>WoS ResearcherID: F-9120-2013; </p><p>Scopus Author ID: 35734354000; </p><p>RSCI SPIN-code: 6112-2792.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3109-8795</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лобзин</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Lobzin</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лобзин Владимир Юрьевич – д.м.н., профессор кафедры нервных болезней им. М.И. Аствацатурова; профессор кафедры неврологии им. акад. С.Н. Давиденкова; старший научный сотрудник научно-исследовательского отдела нейроинфекций и органической патологии нервной системы </p><p>Санкт-Петербург</p><p>WoS ResearcherID: I-4819-2016; </p><p>Scopus Author ID: 57203881632; </p><p>РИНЦ SPIN-код: 7779-3569.</p></bio><bio xml:lang="en"><p>Vladimir Yu. Lobzin – Dr. Med. Sc., Professor, Chair of Nervous Diseases; Professor, Chair of Neurology; Senior Researcher, Research Department of Neuroinfections and Organic Pathology of the Nervous System</p><p>Saint Petersburg</p><p>WoS ResearcherID: I-4819-2016; </p><p>Scopus Author ID: 57203881632; </p><p>RSCI SPIN-code: 7779-3569.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3922-9887</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Свистов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Svistov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Свистов Дмитрий Владимирович – к.м.н., доцент, начальник кафедры нейрохирургии; главный нейрохирург Минобороны России </p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 3184-5590.</p></bio><bio xml:lang="en"><p>Dmitriy V. Svistov – MD, PhD, Associate Professor, Head of Chair of Neurosurgery; Chief Neurosurgeon of the Ministry of Defense of the Russian Federation</p><p>Saint Petersburg</p><p>RSCI SPIN-code: 3184-5590.</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8336-1981</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чирский</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chirskiy</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чирский Вадим Семенович – д.м.н., начальник кафедры патологической анатомии; начальник отдела Центральной патологоанатомической лаборатории Минобороны России</p><p>Санкт-Петербург</p><p>Москва</p><p>РИНЦ SPIN-код: 7295-3369.</p></bio><bio xml:lang="en"><p>Vadim S. Chirskiy – Dr. Med. Sc., Head of Chair of Pathological Anatomy; Head of Department, Central Pathology Laboratory of the Ministry of Defense of the Russian Federation</p><p>Saint Petersburg</p><p>Moscow, Russia</p><p>RSCI SPIN-code: 7295-3369.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0549-9069</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чемодакова</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chemodakova</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чемодакова Ксения Андреевна – врач-нейрохирург клиники нейрохирургии </p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 8425-1808.</p></bio><bio xml:lang="en"><p>Ksenia A. Chemodakova – Neurosurgeon, Neurosurgery Clinic</p><p>Saint Petersburg</p><p>RSCI SPIN-code: 8425-1808.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2686-8786</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клиценко</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Klitsenko</surname><given-names>O. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клиценко Ольга Анатольевна – к.б.н., доцент кафедры педагогики, философии и права </p><p>Санкт-Петербург</p><p>РИНЦ SPIN-код: 7354-3080</p></bio><bio xml:lang="en"><p>Olga A. Klitsenko – PhD (Biol.), Associate Professor, Chair of Pedagogy, Philosophy and Law</p><p>Saint Petersburg</p><p>RSCI SPIN-code: 7354-3080.</p><p> </p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное военное образовательное учреждение высшего образования «Военно-медицинская академия им. С.М. Кирова» Министерства обороны Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kirov Military Medical Academy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное военное образовательное учреждение высшего образования «Военно-медицинская академия им. С.М. Кирова» Министерства обороны Российской Федерации; Федеральное государственное бюджетное образовательное учреждение высшего образования «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Министерства здравоохранения Российской Федерации; Федеральное государственное бюджетное учреждение «Детский научно-клинический центр инфекционных болезней» Федерального медико-биологического агентства России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kirov Military Medical Academy; Mechnikov North-Western State Medical University; Children's Research and Clinical Center for Infectious Diseases, FMBA of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное военное образовательное учреждение высшего образования «Военно-медицинская академия им. С.М. Кирова» Министерства обороны Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kirov Military Medical Academy;</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechnikov North-Western State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>27</day><month>07</month><year>2022</year></pub-date><volume>14</volume><issue>2</issue><fpage>204</fpage><lpage>213</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Prokudin M.Y., Martynov B.V., Yakovenko A.I., Litvinenko I.V., Lobzin V.Y., Svistov D.V., Chirskiy V.S., Chemodakova K.A., Klitsenko O.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Прокудин М.Ю., Мартынов Б.В., Яковенко А.И., Литвиненко И.В., Лобзин В.Ю., Свистов Д.В., Чирский В.С., Чемодакова К.А., Клиценко О.А.</copyright-holder><copyright-holder xml:lang="en">Prokudin M.Y., Martynov B.V., Yakovenko A.I., Litvinenko I.V., Lobzin V.Y., Svistov D.V., Chirskiy V.S., Chemodakova K.A., Klitsenko O.А.</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.epilepsia.su/jour/article/view/795">https://www.epilepsia.su/jour/article/view/795</self-uri><abstract><sec><title>Background</title><p>Background. Epileptic seizures represent one of the leading clinical manifestations of glial brain tumors that develop on average in 51% of cases. In gliomas, epileptogenesis is quite complex and multifactorial.</p></sec><sec><title>Objective</title><p>Objective: to study a role of the expressed glutamine synthetase enzyme, as well as cystine/glutamate transporter (xCT system, SLC7A11) in the pathogenesis of epilepsy developing in patients with cerebral gliomas.</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 32 patients with supratentorial gliomas. The average age of the disease onset (diagnosis) was 50.69±18.01 years. All patients underwent inpatient examination and treatment at the Neurosurgery and Nervous Diseases Clinics of Kirov Military Medical Academy from 2018 to 2020. In all cases, a biopsy of tumor tissue was collected. Histological and immunohistochemical studies were performed (expression of glutamine synthetase and cystine/ glutamate transporter (SLC7A11, xCT)).</p></sec><sec><title>Results</title><p>Results. Significant (ANOVA p=0.027, Mann–Whitney U-test p=0.033) differences in the expression of cystine/glutamate transporter (xCT system, SLC7A11) were revealed, by showing the following median values (lower quartile; upper quartile): 50% (45; 75) in the group of patients with seizures, 40% (40; 50) in the seizure-free group. The expression level of glutamine synthetase did not significantly differ in the groups with and without seizures.</p></sec><sec><title>Conclusion</title><p>Conclusion. The data obtained confirmed that one of the pathogenetic mechanisms for epilepsy development in patients with gliomas was related to highly expressed cystine/glutamate transporter (xCT system, SLC7A11) and, as a consequence, an increase in the extracellular glutamate level.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Актуальность</title><p>Актуальность. Эпилептические приступы являются одним из ведущих клинических проявлений глиальных опухолей головного мозга и развиваются в среднем в 51% случаев. Эпилептогенез при глиомах достаточно сложный и многофакторный.</p></sec><sec><title>Цель</title><p>Цель: изучить роль экспрессии фермента глутамин-синтетазы, а также цистин-глутаматного переносчика (системы xCT, SLC7A11) в патогенезе развития эпилепсии у пациентов с глиомами головного мозга.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 32 пациента с глиомами головного мозга супратенториальной локализации. Средний возраст начала заболевания (постановки диагноза) составил 50,69±18,01 года. Все больные проходили стационарное обследование и лечение в клиниках нейрохирургии и нервных болезней Военно-медицинской академии им. С.М. Кирова в период с 2018 по 2020 гг. Во всех случаях выполнено взятие биопсийного материала ткани опухоли. Проводились гистологическое и иммуногистохимическое исследования (экспрессия глутамин-синтетазы и транспортера цистин/глутамата (SLC7A11, xCT)).</p></sec><sec><title>Результаты</title><p>Результаты. Получены статистически значимые (ANOVA p=0,027, U-критерий Манна–Уитни p=0,033) различия в экспрессии цистин-глутаматного переносчика (система xCT, SLC7A11). Значения медианы (нижнего квартиля; верхнего квартиля): 50% (45; 75) в группе пациентов с наличием приступов, 40% (40; 50) в группе с отсутствием приступов. Уровень экспрессии глутамин-синтетазы статистически значимо не отличался в группах больных с наличием и отсутствием приступов.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные подтвердили, что одним из патогенетических механизмов развития эпилепсии у пациентов с глиомами головного мозга является высокая экспрессия цистин-глутаматного переносчика (система xCT, SLC7A11) и, как следствие, повышение внеклеточного уровня глутамата.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Глиома</kwd><kwd>эпилепсия</kwd><kwd>глутамин-синтетаза</kwd><kwd>транспортер цистин/глутамата (SLC7A11</kwd><kwd>xCT)</kwd><kwd>патогенез эпилепсии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Glioma</kwd><kwd>epilepsy</kwd><kwd>glutamine synthetase</kwd><kwd>cystine/glutamate transporter (SLC7A11</kwd><kwd>xCT)</kwd><kwd>epilepsy pathogenesis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bray F., Ferlay J., Soerjomataram I., et al. 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