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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">persmed</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал персонализированной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal for Personalized Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3806</issn><issn pub-type="epub">2782-3814</issn><publisher><publisher-name>ФОНД АЛМАЗОВА</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18705/2782-3806-2022-2-4-23-34</article-id><article-id custom-type="elpub" pub-id-type="custom">persmed-66</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWERS</subject></subj-group></article-categories><title-group><article-title>Влияние клинических и молекулярно-генетических характеристик на первый безрецидивный период у пациентов с глиобластомой в эру современной химиолучевой терапии</article-title><trans-title-group xml:lang="en"><trans-title>Influence of clinical and molecular genetic characteristics on the first relapse-free period in patients with glioblastoma in the era of modern chemoradiotherapy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скляр</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sklyar</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Скляр Софья Сергеевна, младший научный сотрудник НИЛ нейроонкологии</p><p>ул. Маяковского, д. 12, Санкт-Петербург, 191014</p></bio><bio xml:lang="en"><p>Sklyar Sofia S., junior Researcher of the Laboratory of Neurooncology</p><p>Mayakovsky str., 12, Saint Petersburg, 1910141</p></bio><email xlink:type="simple">s.sklyar2017@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мацко</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Matsko</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мацко Марина Витальевна, доктор медицинских наук, ведущий научный сотрудник ГБУЗ «Санкт-Петербургский клинический научно-практический центр специализированных видов медицинской помощи (онкологический)»; ассистент кафедры онкологии Санкт-Петербургского государственного университета; доцент кафедры онкологии Санкт-Петербургского медико-социального института</p><p>пос. Песочный, Санкт-Петербург</p></bio><bio xml:lang="en"><p>Matsko Marina V., MD, PhD, Dr. Med. Sci., Senior Researcher, Clinical Scientific-Practical Center of Oncology; assistant of the department of oncology, Saint Petersburg State University; associate professor of department of oncology, Saint Petersburg Medico-Social Institute</p><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский научно-исследовательский нейрохирургический институт имени профессора А. Л. Поленова — филиал Федерального государственного бюджетного учреждения «Национальный медицинский исследовательский центр имени В. А. Алмазова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Polenov Neurosurgical Research Institute, branch of the Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Государственное бюджетное учреждение здравоохранения «Санкт-Петербургский клинический научно-практический центр специализированных видов медицинской помощи (онкологический)»;&#13;
Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный университет»;&#13;
Частное образовательное учреждение высшего образования «Санкт-Петербургский медико-социальный институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Clinical scientific-practical center of oncology;&#13;
Saint Petersburg State University;&#13;
Saint Petersburg Medico-Social Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>16</day><month>09</month><year>2022</year></pub-date><volume>2</volume><issue>4</issue><fpage>23</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Скляр С.С., Мацко М.В., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Скляр С.С., Мацко М.В.</copyright-holder><copyright-holder xml:lang="en">Sklyar S.S., Matsko M.V.</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://persmed.elpub.ru/jour/article/view/66">https://persmed.elpub.ru/jour/article/view/66</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Благодаря активному изучению молекулярно-генетических особенностей глиобластомы, представление о биологических процессах, происходящих в клетках опухоли, стало более отчетливым. В современной научной литературе растет число исследований, где подчеркивается приоритетное значение генетического статуса опухоли в прогнозе заболевания.</p><p>Цель исследования — изучение влияния клинических и молекулярно-генетических факторов на медиану первого безрецидивного периода.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проанализирован первый безрецидивный период (БРП) у 30 пациентов в возрасте от 28 до 81 года с глиобластомой. Диагноз устанавливался в соответствии с классификацией опухолей ЦНС ВОЗ 2021 года. После первой операции все пациенты прошли курс лучевой терапии (ЛТ) (60 Гр) и химиотерапию препаратом темозоломид (2–18 циклов). В каждом наблюдении изучались такие клинические параме тры, как возраст пациента, функциональный статус по шкале Карновского как до, так и после операции, особенности нейровизуализационной картины (распространенность опухолевого процесса, локализация, объем опухоли), проводимое лечение (степень резекции опухоли, лучевая терапия с темозоломидом или без и количество циклов химиотерапии) и молекулярно-генетические характеристики опухоли (определение уровня экспрессии мРНК генов: MGMT, VEGF, PDGFRA, β-tubulin III, ERCC-1, TOP2A).</p></sec><sec><title>Результаты</title><p>Результаты. Из всех исследуемых клинических параметров на медиану БРП оказал влияние только послеоперационный функциональный статус по шкале Карновского (р = 0,001). На медиану первого БРП не повлияли такие рентгенологические характеристики, как вовлечение в опухолевый процесс базальных структур головного мозга (р = 0,9), сторона поражения (р = 0,67), распространенность опухолевого процесса (р = 0,6) и объем опухоли (р = 0,52). Длительность первого БРП со статистической достоверностью была выше в группе пациентов после субтотальной резекции опухоли (14,9 мес.; р ³ 0,05). На медиану первого БРП оказали влияние наличие мутации в гене IDH1 (22,5 vs 11,5 мес.) и уровень экспресcии гена MGMT (p = 0,036). Тотальная резекция опухоли увеличивает первый БРП только при высоком уровне экспрессии гена MGMT, хотя и без статистически значимых различий (7,6 vs 2,7 мес.; р = 0,6). Добавление к лучевой терапии темозоломида (75 мг/м2 , внутрь, ежедневно) привело к увеличению первого безрецидивного периода более чем на 6,9 мес., но только у больных с низкой экспрессией гена MGMT в опухоли.</p></sec><sec><title>Заключение</title><p>Заключение. В условиях проведения стандартной терапии пациентов (хирургическое удаление опухоли, химиолучевая терапия с последующей адъювантной терапией темозоломидом) длительность первого БРП в первую очередь зависит от молекулярно-генетических характеристик опухоли, а именно — наличия мутации в гене IDH1 и уровня MGMT в опухоли. Для пациентов с ожидаемым отсутствием ответа на проводимую терапию (т.е. высоким уровнем активности гена MGMT) возрастает роль других факторов и, прежде всего, — объема циторедукции.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Due to the active research of the molecular and genetic features of glioblastoma, the performance of the biological processes occurring in tumor cells has become more distinct. In the modern scientific literature, the number of scientific studies is growing, which emphasizes the priority importance of the genetic status of the tumor in the prognosis of the disease.</p></sec><sec><title>Purpose statement</title><p>Purpose statement. To study the influence of clinical and molecular genetic factors on the median of the first relapse-free period.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The first progression-free survival (PFS) was analyzed in 30 patients aged 28 to 81 years with glioblastoma. The diagnosis was established in accordance with the WHO classification of CNS tumors in 2021. After the first operation, all patients underwent a course of radiation therapy (LT) (60Gr) and chemotherapy with temozolomide (2–18 cycles). In each case, clinical parameters such as the patient’s age, functional status on the Karnovsky scale both before and after surgery, features of the neuroimaging picture (prevalence of the tumor process, localization, tumor volume), treatment (degree of tumor resection, radiation therapy with or without temozolomide and the number of cycles of chemotherapy) and molecular genetic parameters of tumor (determination of the mRNA expression level of genes: MGMT, VEGF, PDGFRA, β-tubulin III, ERCC-1, TOP2A) were studied.</p></sec><sec><title>Results</title><p>Results. Of all the studied clinical parameters, only the postoperative functional status on the Karnovsky scale (p = 0.001) influenced the median of PFS. The median of the first PFS was not affected by such radiological characteristics as involvement of basal structures of the brain in the tumor process (p = 0.9), the side of the lesion (p = 0.67), the prevalence of the tumor process (p = 0.6) and the volume of the tumor (p = 0.52). The duration of the first PFS with statistical reliability was higher in the group of patients after subtotal resection of the tumor (14.9 months; p ³ 0.05). The median of the first PFS was influenced by the presence of a mutation in the IDH1 gene (22.5 vs 11.5 months) and the expression level of the MGMT gene (p = 0.036). Total tumor resection increases the first BRP only at a high level of MGMT gene expression, although without statistically significant differences (7.6 vs 2.7 months; p = 0.6). The addition of temozolomide to radiation therapy (75 mg/m2, orally, daily) led to an increase in the first relapse-free period by more than 6.9 months, but only in patients with low expression of the MGMT gene in the tumor.</p></sec><sec><title>Conclusion</title><p>Conclusion. In the conditions of standard patient therapy (surgical removal of the tumor, chemoradiotherapy followed by adjuvant therapy with temozolomide), the first PFS primarily depends on the molecular genetic characteristics of the tumor, namely, the presence of a mutation in the IDH1 gene and the level of MGMT in the tumor. For patients with an expected lack of response to therapy (i.e., a high level of MGMT gene activity), the role of other factors increases, and first of all, the volume of cytoreduction.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>глиобластома</kwd><kwd>первый безрецидивный период</kwd><kwd>MGMT</kwd></kwd-group><kwd-group xml:lang="en"><kwd>first progression-free survival</kwd><kwd>glioblastoma</kwd><kwd>MGMT</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">Ostrom QT. 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