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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1039</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2022-18-4-138-146</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GYNECOLOGY. REVIEWS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ГИНЕКОЛОГИЯ. ОБЗОРНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Microsatellite instability in endometrial cancer: the role of diagnostic methods and their clinical application. Expert consensus</article-title><trans-title-group xml:lang="ru"><trans-title>Микросателлитная нестабильность при раке эндометрия: место методов определения и их клиническое применение. Согласованное мнение экспертов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6104-7473</contrib-id><name-alternatives><name xml:lang="en"><surname>Tyulyandina</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Тюляндина</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Alexandra S. Tyulyandina.</p><p>23 Kashirskoe Shosse, Moscow 115478; 8/2 Trubetskaya St., Moscow 119991</p></bio><bio xml:lang="ru"><p>Тюляндина Александра Сергеевна.</p><p>115478 Москва, Каширское шоссе, 23; 119991 Москва, ул. Трубецкая, 8, стр. 2</p></bio><email>atjulandina@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2701-8812</contrib-id><name-alternatives><name xml:lang="en"><surname>Ulrikh</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Ульрих</surname><given-names>Е. 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С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>6 Staropetrovskiy Proezd, Moscow 125130</p></bio><bio xml:lang="ru"><p>125130 Москва, Старопетровский проезд, 6</p></bio><xref ref-type="aff" rid="aff13"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Martynova</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Мартынова</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>16 1-ya Smolenskaya St., Krasnoyarsk 660133</p></bio><bio xml:lang="ru"><p>660133 Красноярск, ул. 1-я Смоленская, 16</p></bio><xref ref-type="aff" rid="aff26"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">N.N. Petrov National Medical Research Institute of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Research Institute of Oncology, Tomsk National Research Medical Center, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">НИИ онкологии ФГБНУ «Томский национальный исследовательский медицинский центр Российской академии наук»</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Institute of Oncology and Neurosurgery, E.N. Meshalkin National Medical Research Center, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Институт онкологии и нейрохирургии ФГБУ «Национальный исследовательский медицинский центр им. акад. Е.Н. Мешалкина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff7"><aff><institution xml:lang="en">Department of Oncology, Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Federal Biomedical Agency of the Russian Federation</institution></aff><aff><institution xml:lang="ru">Отделение онкологии ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий Федерального медико-биологического агентства России»</institution></aff></aff-alternatives><aff-alternatives id="aff8"><aff><institution xml:lang="en">Department of Obstetrics and Gynecology, Academy of Postgraduate Education, Federal Research and Clinical Center for Specialized Medical Care and Medical Technologies, Federal Biomedical Agency of the Russian Federation</institution></aff><aff><institution xml:lang="ru">кафедра акушерства и гинекологии Академии последипломного образования ФГБУ «Федеральный научно-клинический центр специализированных видов медицинской помощи и медицинских технологий Федерального медико-биологического агентства России»</institution></aff></aff-alternatives><aff-alternatives id="aff9"><aff><institution xml:lang="en">Saint Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff10"><aff><institution xml:lang="en">Medical and Diagnostic Center of S. Berezin International Institute of Biological Systems</institution></aff><aff><institution xml:lang="ru">ООО «Лечебно-диагностический центр Международного института биологических систем им. Сергея Березина»</institution></aff></aff-alternatives><aff-alternatives id="aff11"><aff><institution xml:lang="en">Republican Clinical Oncology Dispensary, Ministry of Health of the Republic of Tatarstan</institution></aff><aff><institution xml:lang="ru">ГАУЗ «Республиканский клинический онкологический диспансер» Минздрава Республики Татарстан</institution></aff></aff-alternatives><aff-alternatives id="aff12"><aff><institution xml:lang="en">Kazan Federal University</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Казанский (Приволжский) федеральный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff13"><aff><institution xml:lang="en">Moscow City Oncology Hospital No. 62, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Московская городская онкологическая больница № 62 Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff14"><aff><institution xml:lang="en">Clinical Oncology Dispensary No. 1</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Клинический онкологический диспансер № 1» Минздрава Краснодарского края</institution></aff></aff-alternatives><aff-alternatives id="aff15"><aff><institution xml:lang="en">Kuban State Medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Кубанский государственный медицинский университет»</institution></aff></aff-alternatives><aff-alternatives id="aff16"><aff><institution xml:lang="en">Volgograd Regional Clinical Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Волгоградский областной клинический онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff17"><aff><institution xml:lang="en">Volgograd State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Волгоградский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff18"><aff><institution xml:lang="en">Belgorod National Research University</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Белгородский государственный национальный исследовательский университет»</institution></aff></aff-alternatives><aff-alternatives id="aff19"><aff><institution xml:lang="en">Belgorod Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">ОГБУЗ «Белгородский онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff20"><aff><institution xml:lang="en">Oncology Dispensary, Ministry of Health of Kabardino-Balkar Republic</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Онкологический диспансер» Минздрава Кабардино-Балкарской Республики</institution></aff></aff-alternatives><aff-alternatives id="aff21"><aff><institution xml:lang="en">V.M. Efetov Crimean Republican Oncology Clinical Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ РК «Крымский республиканский онкологический клинический диспансер им. В.М. Ефетова»</institution></aff></aff-alternatives><aff-alternatives id="aff22"><aff><institution xml:lang="en">Samara Regional Clinical Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Самарский областной клинический онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff23"><aff><institution xml:lang="en">Pyatigorsk Regional Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ СК «Пятигорский межрайонный онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff24"><aff><institution xml:lang="en">Oncology Dispensary in Shakhty</institution></aff><aff><institution xml:lang="ru">ГБУ РО «Онкодиспансер» в г. Шахты</institution></aff></aff-alternatives><aff-alternatives id="aff25"><aff><institution xml:lang="en">Korolev City Hospital</institution></aff><aff><institution xml:lang="ru">ГБУЗ МО «Королёвская городская больница»</institution></aff></aff-alternatives><aff-alternatives id="aff26"><aff><institution xml:lang="en">A.I. Kryzhanovsky Krasnoyarsk Regional Clinical Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">КГБУЗ «Красноярский краевой клинический онкологический диспансер им. А.И. Крыжановского»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-03" publication-format="electronic"><day>03</day><month>12</month><year>2022</year></pub-date><volume>18</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>138</fpage><lpage>146</lpage><history><date date-type="received" iso-8601-date="2022-01-08"><day>08</day><month>01</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2023-04-29"><day>29</day><month>04</month><year>2023</year></date></history><permissions><copyright-year>2022</copyright-year><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/1039">https://ojrs.abvpress.ru/ojrs/article/view/1039</self-uri><abstract xml:lang="en"><p>Deficient DNA mismatch repair (dMMR) is a rare molecular disorder found in 20-30 % of endometrial tumors. Laboratory identification of dMMR/microsatellite instability (MSI) has a high diagnostic value, since these impairments are considered as biomarkers of endometrial adenocarcinoma. They help to identify patients at high risk of Lynch syndrome, evaluate the disease prognosis, and estimate the efficacy of immune checkpoint inhibitors and their combinations. This review details current concepts of MSI diagnostics and discusses its predictive value in patients with endometrial cancer. It also describes a new diagnostic algorithm for the detection of dMMR and MSI.</p></abstract><trans-abstract xml:lang="ru"><p>Дефицит системы репарации неспаренных оснований представляет собой уникальное молекулярное нарушение, встречающееся в 20-30 % опухолей эндометрия. Исследование дефицита системы репарации неспаренных оснований/наличия микросателлитной нестабильности приносит диагностическую пользу, поскольку эти нарушения являются биомаркером эндометриальной аденокарциномы, повышает возможности идентификации пациенток группы высокого риска развития синдрома линча, определяет прогноз жизни пациентки и дает понимание эффективности ингибиторов контрольных точек и их комбинаций. В настоящей обзорной статье представлены современные данные по диагностике, прогностической и предиктивной значимости микросателлитной нестабильности при раке эндометрия, а также предполагаемый алгоритм тестирования дефицита системы репарации/микросателлитной нестабильности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>deficient DNA mismatch repair</kwd><kwd>microsatellite instability</kwd><kwd>immunotherapy</kwd><kwd>endometrial cancer</kwd><kwd>uterine cancer</kwd><kwd>pembrolizumab</kwd><kwd>lenvatinib</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дефицит системы репарации неспаренных оснований</kwd><kwd>микросателлитная нестабильность</kwd><kwd>иммунотерапия</kwd><kwd>рак эндометрия</kwd><kwd>рак тела матки</kwd><kwd>пембролизумаб</kwd><kwd>ленватиниб</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This publication was funded by Eisai Co., Ltd.</funding-statement><funding-statement xml:lang="ru">Данная публикация выпущена при финансовой поддержке компании «Эйсай».</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Situtation with cancer care in Russia in 2021. 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