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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">bioph</journal-id><journal-title-group><journal-title xml:lang="ru">Biomedical Photonics</journal-title><trans-title-group xml:lang="en"><trans-title>Biomedical Photonics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-9432</issn><publisher><publisher-name>Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24931/2413-9432-2025-14-1-4-19</article-id><article-id custom-type="elpub" pub-id-type="custom">bioph-693</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Возможности интерстициальной фотодинамической  терапии в лечении глиобластом головного мозга</article-title><trans-title-group xml:lang="en"><trans-title>Possibilities of interstitial photodynamic therapy   in the treatment of brain glioblastoma</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>Рында</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Rynda</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><email xlink:type="simple">artemii.rynda@mail.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>Олюшин</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Olyushin</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ростовцев</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Rostovtsev</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Забродская</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zabrodskaya</surname><given-names>Yu. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Папаян</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Papayan</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Российский нейрохирургический институт имени проф. А.Л. Поленова – филиал ФГБУ «Национальный медицинский исследовательский центр имени В.А. Алмазова» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Russian Neurosurgical Institute named after prof. A.L. Polenov – a branch of the National Medical Research Center named after V.A. Almazov Ministry of Health of Russia<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>16</day><month>04</month><year>2025</year></pub-date><volume>14</volume><issue>1</issue><fpage>4</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рында А.Ю., Олюшин В.Е., Ростовцев Д.М., Забродская Ю.М., Папаян Г.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Рында А.Ю., Олюшин В.Е., Ростовцев Д.М., Забродская Ю.М., Папаян Г.В.</copyright-holder><copyright-holder xml:lang="en">Rynda A.Y., Olyushin V.E., Rostovtsev D.M., Zabrodskaya Y.M., Papayan G.V.</copyright-holder><license 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.pdt-journal.com/jour/article/view/693">https://www.pdt-journal.com/jour/article/view/693</self-uri><abstract><p>Интерстициальная фотодинамическая терапия (иФДТ) — это минимально инвазивный метод лечения, основанный на взаимодействии света, фотосенсибилизатора (ФС) и кислорода. При глиомах головного мозга иФДТ включает стереотаксическое введение одного или нескольких световодов в целевую область для облучения опухолевых клеток и тканей, накопивших ФС, что вызывает в дальнейшем некроз и/или апоптоз опухолевых клеток, разрушение сосудистой сети опухоли и воспалительную реакцию, запускающую противоопухолевый иммунный ответ.</p><p>Целью исследования являлся анализ возможности применения иФДТ при лечении одноочаговых, небольших по размерам (до 3,5 см) глиобластом.</p><p> В исследование были включены 7 пациентов с одноочаговым вариантом глиобластомы с максимальным размером опухоли до 3,5 см и оценкой по шкале Карновского не менее 70 баллов. У 5 (71,4%) пациентов был рецидив глиобластомы, в 2 (28,6%) случаях опухоль была впервые диагностированной. В качестве ФС использовали фотодитазин, вводимый внутривенно капельно в дозе 1 мг/кг веса тела. Внутритканевое облучение выполняли с использованием лазера (Латус 2,5 (Аткус, Россия)) с длиной волны 662 нм и максимальной мощностью 2,5 Вт и цилиндрических рассеивающих волокон. Целевой объем опухоли определяли после объединения мультимодальных изображений КТ (сканирование с контрастным усилением, аксиальные срезы 0,6 мм) с предоперационной МРТ, ПЭТ. Пространственное точное внутритканевое облучение объема опухоли планировали с использованием специального программного обеспечения. Длительность облучения не превышала 15 мин. Световая доза составила от 150 до 200 Дж/см2. Транзиторное клиническое ухудшение было зафиксировано у 2 (28,6%) пациентов. У них наблюдали нарастание неврологического дефицита в раннем послеоперационном периоде (нарастание гемипареза с 4 баллов до 2 баллов у одного пациента и появление дизартрии и дисфазии у второго пациента). Медиана общей выживаемости от первого диагноза злокачественной глиомы до смерти составила 28,3 мес. Медиана безрецидивной выживаемости составила 13,1 мес. Статус MGMT сыграл значительную роль в результатах лечения пациентов с иФДТ. Пациенты с метилированным промотором MGMT жили дольше, чем пациенты с неметилированным промотором MGMT, в среднем на 22,1 мес, и у них не наблюдали прогрессирования заболевания в течение дополнительных 9,3 мес. иФДТ может быть многообещающим вариантом лечения в популяции пациентов с высоким риском послеоперационного неврологического дефицита. Это не мешает, а скорее может дополнять другие варианты лечения данного заболевания, такие как повторная лучевая терапия и химиотерапия. иФДТ остается потенциальным вариантом при глубоко расположенных глиомах у пациентов с высоким хирургическим риском и при рецидиве опухоли.</p></abstract><trans-abstract xml:lang="en"><p>Interstitial photodynamic therapy (iPDT) is a minimally invasive treatment method based on the interaction of light, a photosensitizer (PS) and oxygen. In brain gliomas, iPDT involves the stereotactic introduction of one or more light guides into the target area to irradiate tumor cells and tissues that have accumulated PS, which subsequently causes necrosis and/or apoptosis of tumor cells, destruction of the tumor vascular network and causes an inflammatory reaction that triggers stimulation of the antitumor immune response.</p><p> The aim of the study was to analyze the possibility of using iPDT in the treatment of unifocal, small-sized (up to 3.5 cm) glioblastomas.</p><p> The study with iPDT included 7 patients with a unifocal variant of glioblastoma with a maximum tumor size of up to 3.5 cm and a Karnofsky score of at least 70 points. In 5 patients (71.4%) there was a relapse of glioblastoma, in 2 cases (28.6%) the tumor was diagnosed for the first time. As a PS, PS photoditazine was used, administered intravenously by drip at a dose of 1 mg/kg. Interstitial irradiation was performed using a laser (Latus 2.5 (Atkus, Russia)) with a wavelength of 662 nm and a maximum power of 2.5 W and cylindrical scattering fibers. The target tumor volume was determined after combining multimodal CT images (contrast-enhanced scanning, axial slices of 0.6 mm) with preoperative MRI, PET. Spatial precise interstitial irradiation of the tumor volume was planned using special software. The duration of irradiation did not exceed 15 min. The light dose was from 150 to 200 J/cm2. Transient clinical deterioration was recorded in about 2 patients (28.6%). These 2 patients had worsening neurological deficits in the early postoperative period (increase in hemiparesis from 4 points to 2 points in one patient and development of dysarthria and dysphasia in the second patient). The median overall survival from the first diagnosis of malignant glioma to death was 28.3 months. The median relapse-free survival was 13.1 months. MGMT status played a significant role in the outcome of patients treated with iPDT. Patients with a methylated MGMT promoter survived longer than patients with an unmethylated MGMT promoter by a median of 22.1 months, and they did not experience disease progression for an additional 9.3 months.</p><p> iPDT may be a promising treatment option in a population of patients at high risk of postoperative neurological deficit. It does not interfere with, but rather may complement, other treatment options for this disease, such as repeat radiation therapy and chemotherapy. iPDT remains a potential option for deep-seated gliomas in patients with high surgical risk and in case of tumor recurrence.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>глиобластома</kwd><kwd>интерстициальная фотодинамической терапии (иФДТ)</kwd><kwd>новые технологии</kwd><kwd>результаты</kwd><kwd>глиома</kwd></kwd-group><kwd-group xml:lang="en"><kwd>glioblastoma</kwd><kwd>interstitial photodynamic therapy</kwd><kwd>new technologies</kwd><kwd>results</kwd><kwd>glioma</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">Louis D.N., Perry A., Wesseling P. 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