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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.2024.193</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-1152</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>CLINICAL CASES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group></article-categories><title-group><article-title>DEPDC5 mutations in familial epilepsy syndrome: genetic insights and therapeutic approaches</article-title><trans-title-group xml:lang="ru"><trans-title>Мутации в гене DEPDC5 при семейной эпилепсии: генетические находки и терапевтические подходы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3569-5859</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Диалло</surname><given-names>М. K.Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Diallo</surname><given-names>M. K.C.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Диалло Мамаду Кинди Шериф.</p><p>611 W Парк-стрит, Урбана, Иллинойс 61801</p></bio><bio xml:lang="en"><p>Mamadou Kindy Cherif Diallo.</p><p>611 W Park Str., Urbana, IL 61801</p></bio><email xlink:type="simple">dr.diallodenka92@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/0009-0001-6765-9120</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мукеш</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukesh</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мукеш Синду.</p><p>C7P9+4W6, Джамшоро, Синд</p></bio><bio xml:lang="en"><p>Sindu Mukesh.</p><p>C7P9+4W6, Jamshoro, Sindh</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/0009-0001-8356-7437</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Капил</surname><given-names>Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kapil</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Капил Лесли.</p><p>25 Патер Эйвенсвег, Виллемстад, Кюрасао</p></bio><bio xml:lang="en"><p>Leslie Kapil.</p><p>25 Pater Euwensweg, Willemstad, Curacao</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/0000-0001-7937-3907</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сингла</surname><given-names>Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Singla</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сингла Рамит.</p><p>2435 Форест-драйв, Колумбия, Южная Каролина 29204</p><p>Scopus Author ID 57216049043</p></bio><bio xml:lang="en"><p>Ramit Singla.</p><p>2435 Forest Dr., Columbia, SC 29204</p><p>Scopus Author ID 57216049043</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-9480-4183</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тар</surname><given-names>Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Tar</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тар Дин.</p><p>1310 Клаб Д., Вальехо, Калифорния 94592</p></bio><bio xml:lang="en"><p>Deen Tar.</p><p>1310 Club D., Vallejo, CA 94592</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-4858-5797</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тамминиди</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tammineedi</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тамминиди Саи Нихарика.</p><p>56W7+RC5, Аккенепалли вари линготам, Наркетпалли, Телангана 508254</p></bio><bio xml:lang="en"><p>Sai Niharika Tammineedi.</p><p>56W7+RC5, Akkenepally vari lingotam, Narketpalle, Telangana 508254</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-3390-6556</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сингер</surname><given-names>Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Singer</surname><given-names>E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сингер Эмад.</p><p>1515 бульвар Холкомб, Хьюстон, Техас 77030</p></bio><bio xml:lang="en"><p>Emad Singer.</p><p>1515 Holcombe Blvd, Houston, TX 77030</p></bio><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3276-306X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чайани</surname><given-names>Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Chhayani</surname><given-names>H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чайани Хайрен.</p><p>Кампус старой противотуберкулезной больницы, Готри-роуд, Готри, Вадодара, Гуджарат 390021</p></bio><bio xml:lang="en"><p>Hiren Chhayani.</p><p>Old TB hospital Campus, Gotri Rd, Gotri, Vadodara, Gujarat 390021</p></bio><xref ref-type="aff" rid="aff-8"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3169-7050</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арумаитураи</surname><given-names>K.</given-names></name><name name-style="western" xml:lang="en"><surname>Arumaithurai</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арумаитураи Когул.</p><p>404 W Фаунтейн-стрит, Альберт Ли, Миннесота 56007</p></bio><bio xml:lang="en"><p>Kogul Arumaithurai.</p><p>404 W Fountain St, Albert Lea, MN 56007</p></bio><xref ref-type="aff" rid="aff-9"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6702-298X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пател</surname><given-names>У. K.</given-names></name><name name-style="western" xml:lang="en"><surname>Patel</surname><given-names>U. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пател Урвиш K.</p><p>1 Густав Л. Леви-плейс, Нью-Йорк, Нью-Йорк 10029</p><p>Scopus Author ID 57205649495</p></bio><bio xml:lang="en"><p>Urvish K. Patel.</p><p>1 Gustave L. Levy Pl, New York, NY 10029</p><p>Scopus Author ID 57205649495</p></bio><xref ref-type="aff" rid="aff-10"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7941-2424</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арора</surname><given-names>Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Arora</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арора Рохан.</p><p>500 бульвар Хофстра, Хемпстед, Нью-Йорк 11549</p></bio><bio xml:lang="en"><p>Rohan Arora.</p><p>500 Hofstra Blvd, Hempstead, NY 11549</p></bio><xref ref-type="aff" rid="aff-11"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Больница Карл Фаундейшен</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Carle Foundation Hospital</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Лиакватский университет медицины и оздоровительных наук</institution><country>Пакистан</country></aff><aff xml:lang="en"><institution>Liaquat University of Medical and Health Sciences</institution><country>Pakistan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Карибский медицинский университет</institution><country>Нидерландские Антильские острова</country></aff><aff xml:lang="en"><institution>Caribbean Medical University</institution><country>Netherlands Antilles</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Медицинский университет Южной Каролины</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Medical University of South Carolina Columbia Downtown Center</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Колледж остеопатической медицины при университете Туро</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Touro University College of Osteopathic Medicine</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Институт медицинских наук Каминени</institution><country>Индия</country></aff><aff xml:lang="en"><institution>Kamineni institute of Medical sciences</institution><country>India</country></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>Онкологический центр доктора медицины Андерсона при Техасском университете</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>The University of Texas MD Anderson Cancer Center</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-8"><aff xml:lang="ru"><institution>Медицинский колледж GMERS</institution><country>Индия</country></aff><aff xml:lang="en"><institution>G.M.E.R.S. Medical College</institution><country>India</country></aff></aff-alternatives><aff-alternatives id="aff-9"><aff xml:lang="ru"><institution>Система здравоохранения клиники Мейо</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Mayo Clinic Health System</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-10"><aff xml:lang="ru"><institution>Медицинская школа Икана на горе Синай</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Icahn School of Medicine at Mount Sinai</institution><country>United States</country></aff></aff-alternatives><aff-alternatives id="aff-11"><aff xml:lang="ru"><institution>Медицинская школа Цукера в Хофстре/Нортвелл</institution><country>Соединённые Штаты Америки</country></aff><aff xml:lang="en"><institution>Zucker School of Medicine at Hofstra/Northwell</institution><country>United States</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2025</year></pub-date><volume>16</volume><issue>4</issue><fpage>338</fpage><lpage>348</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Diallo M.K., Mukesh S., Kapil L., Singla R., Tar D., Tammineedi S.N., Singer E., Chhayani H., Arumaithurai K., Patel U.K., Arora R., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Диалло М.K., Мукеш С., Капил Л., Сингла Р., Тар Д., Тамминиди С.Н., Сингер Е., Чайани Х., Арумаитураи K., Пател У.K., Арора Р.</copyright-holder><copyright-holder xml:lang="en">Diallo M.K., Mukesh S., Kapil L., Singla R., Tar D., Tammineedi S.N., Singer E., Chhayani H., Arumaithurai K., Patel U.K., Arora 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.epilepsia.su/jour/article/view/1152">https://www.epilepsia.su/jour/article/view/1152</self-uri><abstract><sec><title>Background</title><p>Background. DEPDC5 (disheveled, Egl-10 and pleckstrin domain-containing protein 5) familial epilepsy syndrome is a group of epilepsy disorders caused by mutations in DEPDC5 gene, which is a part of the gap activity towards rag 1 (GATOR1) complex involved in regulating the mechanism target of rapamycin (mTOR) pathway. These mutations lead to hyperactivation of the mTOR pathway, disrupting the shaping of neurons and resulting in increased excitatory transmission and the development of epilepsy. The incidence and prevalence of DEPDC5 familial epilepsy syndrome are not well established, but studies suggest it may account for up to 10% of familial focal epilepsy cases. Genetic testing, electroencephalography (EEG), and brain magnetic resonance imaging (MRI) are important in diagnosing the disorder, although normal MRI results are common.</p></sec><sec><title>Objective</title><p>Objective: to explain the rare sporadic mutation in DEPDC5 gene with p.R389H, a variant of unknown significance.</p></sec><sec><title>Case report</title><p>Case report. A 6-year-old South-Asian girl was born at 34-weeks from non-consanguineous marriage without any prenatal events. She had hyperbilirubinemia by week-1, which was successfully treated with phototherapy. Her initial seizure occurred when she was three months old, just 2 days after the fever from the vaccination had subsided. It was considered a simple-febrile seizure and no treatment was given. At 3.5-months, she started having recurrent seizures. Workup including MRI/ infectious/metabolic panel was non-conclusive. EEG during the initial presentation showed epileptiform activity from the left temporal region. Despite being on multiple anti-epileptic drugs, the child was diagnosed with refractory epilepsy. Subsequently, EEG at 2.5-years showed inter-ictal bi-hemispheric epileptiform activity. EEG at 5-years showed inter-ictal spikes and wave discharges from bilateral fronto-temporal region with secondary generalization. By 3-years, MRI showed mildly deformed corpus callosum with inadequate thickening of splenium. DNA analysis confirmed heterozygous missense mutation in exon 16 of DEPDC5 gene, without chromosomal abnormalities. Mother was heterozygous for the same mutation but no mutations in the father was found. The child has grossly delayed milestones. Corrected age is approximately 1-year for fine motor and language, 1.5-years for gross motor, 2.5-years for cognition, social skills. She had developed autistic features as well with significant impaired auditory/visual processing. She had hypotonia (Right&gt;Left), wide-based gait, and extrapyramidal movements.</p></sec><sec><title>Conclusion</title><p>Conclusion. DEPDC5 gene mutation results in amino acid substitution of Histidine for Arginine at codon 389. This mutation has shown to be inherited in familial pattern. This R389H variant is not present in the 1000 genomes database and is predicted to be benign. However, It rather appears to be a sporadic mutation, which is a very rarely observed phenomena. Such patients may respond well to mTOR inhibitors such as rapamycin, making prompt diagnosis and treatment crucial.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Актуальность</title><p>Актуальность. Семейная эпилепсия DEPDC5 (белок 5, содержащий домены disheveled, Egl-10 и pleckstrin) представляет собой группу эпилептических расстройств, вызванных мутациями в гене DEPDC5, который является частью комплекса GATOR1 (GAP-активность в отношении Rag 1). Указанные мутации вызывают гиперактивацию пути mTOR, что нарушает морфогенез нейронов и приводит к увеличению проведения возбуждающих потенциалов и развитию эпилепсии. Частота и распространенность семейной эпилепсии DEPDC5 не установлены, но исследования показывают, что она может составлять до 10% случаев семейной фокальной эпилепсии. Генетическое тестирование, электроэнцефалография (ЭЭГ) и магнитно-резонансная томография (МРТ) мозга важны для диагностики данного расстройства, хотя часто регистрируется нормальная картина МРТ.</p></sec><sec><title>Цель</title><p>Цель: исследовать редкую спорадическую мутацию в гене DEPDC5 с полиморфизмом p.R389H неизвестного значения.</p></sec><sec><title>Клинический случай</title><p>Клинический случай. Девочка (возраст 6 лет) из Южной Азии родилась на 34-й неделе от некровного брака без каких-либо пренатальных осложнений: гипербилирубинемия отмечена на 1-й неделе от рождения, успешно купирована применением фототерапии. Первый приступ, расцененный как простой фебрильный, случился у ребенка в возрасте 3 мес, лишь через 2 дня после того, как спала лихорадка после вакцинации. Лечения не проводилось. В возрасте 3,5 мес у пациентки начались рецидивирующие приступы. Обследование с проведением МРТ, исследование на инфекционные возбудители и оценка метаболической панели не дали окончательных результатов. ЭЭГ во время первичного осмотра показала эпилептиформную активность в левой височной области. Принимая во внимание прием нескольких противоэпилептических препаратов, пациентке поставили диагноз «рефрактерная эпилепсия». Впоследствии при проведении ЭЭГ в возрасте 2,5 года обнаружена интериктальная биполушарная эпилептиформная активность. На ЭЭГ в возрасте 5 лет выявлены интериктальные спайки и волновые разряды в лобно-височной области с обеих сторон со вторичной генерализацией. К возрасту 3 лет МРТ-исследование пациентки продемонстрировало легкую деформацию мозолистого тела с недостаточной толщиной его валика. ДНК-анализ подтвердил наличие гетерозиготной миссенс-мутации в экзоне 16 гена DEPDC5 без хромосомных аномалий. Мать девочки также является гетерозиготной по обнаруженной мутации, отец мутаций не имеет. У пациентки диагностирована выраженная задержка развития. Скорректированный возраст составляет приблизительно 1 год для мелкой моторики и речи, 1,5 года – для крупной моторики, 2,5 года – для когнитивных и социальных навыков. У ребенка также развились аутистические черты со значительным нарушением слуховой/визуальной обработки, отмечены гипотония (D&gt;S), походка с широкой базой шага и экстрапирамидные движения.</p></sec><sec><title>Заключение</title><p>Заключение. Мутация в гене DEPDC5, наследуемая по семейному типу, приводит к замене аминокислоты гистидина на аргинин в кодоне 389. Указанный вариант R389H отсутствует в базе данных 1000 геномов (англ. 1000 genomes) и, как предполагается, является доброкачественным. Напротив, описанный вариант скорее представляет собой спорадическую крайне редкую мутацию. Пациенты с подобными мутациями могут хорошо отвечать на терапию ингибиторами mTOR, такие как рапамицин, что делает критически важным проведение быстрой диагностики и лечения.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>DEPDC5</kwd><kwd>mTOR</kwd><kwd>GATOR1</kwd><kwd>семейная фокальная эпилепсия с вариабельными очагами</kwd><kwd>FFEVF</kwd><kwd>магнитно-резонансная томография</kwd><kwd>МРТ</kwd><kwd>внезапная неожиданная смерть при эпилепсии</kwd><kwd>SUDEP</kwd><kwd>электроэнцефалограмма</kwd><kwd>ЭЭГ</kwd><kwd>фокальная корковая дисплазия</kwd><kwd>ФКД</kwd></kwd-group><kwd-group xml:lang="en"><kwd>DEPDC5</kwd><kwd>mTOR</kwd><kwd>GATOR1</kwd><kwd>familial focal epilepsy with variable foci</kwd><kwd>FFEVF</kwd><kwd>magnetic resonance imagery</kwd><kwd>MRI</kwd><kwd>sudden unexplained death in epilepsy</kwd><kwd>SUDEP</kwd><kwd>electroencephalogram</kwd><kwd>EEG</kwd><kwd>focal cortical dysplasia</kwd><kwd>FCD</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">Samanta D. 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