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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">uzspbgmu</journal-id><journal-title-group><journal-title xml:lang="ru">Учёные записки Первого Санкт-Петербургского государственного медицинского университета имени академика И. П. Павлова</journal-title><trans-title-group xml:lang="en"><trans-title>The Scientific Notes of the Pavlov University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-4181</issn><issn pub-type="epub">2541-8807</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1607-4181-2022-29-2-68-76</article-id><article-id custom-type="elpub" pub-id-type="custom">uzspbgmu-874</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 РАБОТЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Циркадные ритмы и некоторые морфометрические показатели меланомы B16</article-title><trans-title-group xml:lang="en"><trans-title>Circadian rhythms and some micromorphometric indicators of B16 melanoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3555-0902</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллов</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillov</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кириллов Юрий Александрович, доктор медицинских наук, ведущий научный сотрудник </p><p>Москва</p></bio><bio xml:lang="en"><p>Kirillov Yury A., Dr. of Sci. (Med.), Leading Research Fellow </p><p>Moscow</p></bio><email xlink:type="simple">youri_kirillov@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/0000-0001-6251-2560</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Козлова Мария Александровна, научный сотрудник </p><p>Москва</p></bio><bio xml:lang="en"><p>Kozlova Maria A., Research Fellow</p><p>Moscow</p></bio><email xlink:type="simple">ma.kozlova2021@outlook.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/0000-0002-1882-8848</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарцева</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makartseva</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макарцева Людмила Андреевна, младший научный сотрудник </p><p>Москва</p></bio><bio xml:lang="en"><p>Makartseva Lyudmila A., Junior Research Fellow</p><p>Moscow</p></bio><email xlink:type="simple">la.makartseva@outlook.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/0000-0002-6161-7456</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Борисов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Borisov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борисов Алексей Викторович, соискатель </p><p>Москва</p></bio><bio xml:lang="en"><p>Borisov Aleksey V., Candidate</p><p>Moscow</p></bio><email xlink:type="simple">Nihilist78@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/0000-0003-1183-1398</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муратова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Muratova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Муратова Марина Владимировна, клинический ординатор </p><p>Москва</p></bio><bio xml:lang="en"><p>Muratova Marina V., Clinical Resident</p><p>Moscow</p></bio><email xlink:type="simple">muratovamv97@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/0000-0003-3006-6281</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арешидзе</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Areshidze</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Арешидзе Давид Александрович, кандидат биологических наук, зав. лабораторией патологии клетки</p><p>Москва</p></bio><bio xml:lang="en"><p>Areshidze David A., Cand. of Sci. (Biol.), Head of the Laboratory of Cell Pathology</p><p>Moscow</p></bio><email xlink:type="simple">labcelpat@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт морфологии человека им. акад. А. П. Авцына</institution></aff><aff xml:lang="en"><institution>A. P. Avtsyn Research Institute of Human Morphology</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>19</day><month>04</month><year>2022</year></pub-date><volume>29</volume><issue>2</issue><fpage>68</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кириллов Ю.А., Козлова М.А., Макарцева Л.А., Борисов А.В., Муратова М.В., Арешидзе Д.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Кириллов Ю.А., Козлова М.А., Макарцева Л.А., Борисов А.В., Муратова М.В., Арешидзе Д.А.</copyright-holder><copyright-holder xml:lang="en">Kirillov Y.A., Kozlova M.A., Makartseva L.A., Borisov A.V., Muratova M.V., Areshidze D.A.</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.sci-notes.ru/jour/article/view/874">https://www.sci-notes.ru/jour/article/view/874</self-uri><abstract><sec><title>Введение</title><p>Введение. Меланома является одной из наиболее злокачественных опухолей человека, происходящей из меланинобразующей ткани. В настоящее среди факторов риска развития злокачественных новообразований, в том числе и меланомы, рассматривается световое загрязнение – воздействие света в ночное время. В свою очередь, нарушение циркадной ритмичности в условиях светового загрязнения нередко приводит к возникновению десинхронозов, которые могут быть причиной развития целого ряда заболеваний, в том числе и злокачественных новообразований. Как правило, световое загрязнение сопровождается снижением выработки эпифизарного мелатонина, обладающего онкостатическим, противоопухолевым и антиоксидантным эффектами.</p><p>Цель – изучение морфологических особенностей перевиваемой меланомы B16, установление микроморфометрических параметров клеток опухоли и циркадных ритмов (ЦР) некоторых из них для дальнейшего использования в качестве контрольных показателей при исследовании влияния различных световых режимов и экспериментальной терапии на морфофункциональное состояние организма животных с перевитой меланомой.</p></sec><sec><title>Методы и материалы</title><p>Методы и материалы. Исследование проведено на cамцах мышей-гибридов линии BDF1. Животные были разделены на две равные группы по 25 особей. Первая служила интактным контролем, мышам второй группы осуществляли трансплантацию меланомы В16/F10. На 15-е сутки после перевивки опухоли животные были выведены из опыта в 9.00, 15.00, 21.00 и 3.00. Определяли массу и объем опухоли, проводили микроскопические, в том числе и микроморфометрические, исследования опухолей. В плазме крови определяли уровень глюкозы. Оценивали суточную динамику изучаемых показателей, для статистического расчета амплитуды и акрофазы циркадных ритмов выполняли косинор-анализ.</p></sec><sec><title>Результаты</title><p>Результаты. Исследование циркадного ритма глюкозы позволило выявить его отличие у животных с меланомой от такового в контроле. Изменения суточной ритмичности этого метаболита, комплексно отражающего синхронизацию множества ритмов между собой, позволяют утверждать о значительном изменении циркадного ритмостаза у животных с меланомой. В результате проведенного исследования нами были установлены микроморфометрические показатели, характерные для меланомы B16, на 14-е сутки после перевивки. Установлен циркадный ритм площади ядра и клетки, митотического индекса и отсутствие тактового для ядерно-цитоплазматического отношения. Обнаружено отличие фазово-амплитудных особенностей ЦР площади ядра клеток меланоцитов опухоли от нормальных.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные свидетельствуют об изменении ритмостаза у мышей с экспериментальной меланомой B16. Особенности организации ритмичности самой опухоли могут быть использованы при ее таргетной экспериментальной терапии с учетом хронобиологических особенностей. Результаты исследования могут быть использованы для дальнейших исследований влияния различных режимов освещения на морфофункциональное состояние организма животных при исследуемой патологии.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Melanoma is one of the most malignant human tumors, originating from melanin-forming tissue. Currently, among the risk factors for the development of malignant neoplasms, including melanoma, light pollution is considered – exposure to light at night. In turn, the violation of circadian rhythm under conditions of light pollution often leads to the occurrence of desynchronosis, which is the cause of the development of a number of diseases, including malignant neoplasms. As a rule, light pollution is accompanied by a decrease in the production of epiphyseal melatonin, which has oncostatic, antitumor and antioxidant effects.</p><p>The objective of study was to study the morphological features of transplanted B16 melanoma, to establish the micromorphometric indicators of tumor cells and circadian rhythms of some of them for further use as control indicators in the study of the effect of various light regimes and experimental therapy on the morphofunctional state of the body of animals with transplanted melanoma.</p></sec><sec><title>Methods and materials</title><p>Methods and materials. The study was conducted on male hybrid mice of the BDF1 line. The animals were divided into 2 equal groups of 25 individuals. The first group served as an intact control, the mice of the second group were transplanted with B16/F10 melanoma. On the 15th day after tumor inoculation, the animals were withdrawn from the experiment at 9.00, 15.00, 21.00 and 3. The mass and volume of the tumor were determined, microscopic, including micromorphometric studies of tumors were performed. Glucose levels were determined in blood plasma. The daily dynamics of the studied parameters was assessed, and for the statistical calculation of the amplitude and acrophase of circadian rhythms, a cosinor analysis was performed.</p></sec><sec><title>Results</title><p>Results. The study of the circadian rhythm of glucose made it possible to reveal its difference in animals with melanoma from that in the control. Changes in the daily rhythmicity of this metabolite, which comprehensively reflects the synchronization of many rhythms with each other, allows us to state a significant change in circadian rhythmostasis in animals with melanoma. As a result of the study, we have established micromorphometric indicators characteristic of B16 melanoma on the 14th day after transplantation. The circadian rhythm of the area of the nucleus and cells, the mitotic index and the absence of a clock for the NCR were established. The difference between the phase-amplitude features of the CR of the area of the nucleus of melanocyte cells from the normal ones was found.</p></sec><sec><title>Conclusion</title><p>Conclusion. The obtained data indicate a change in rhythmostasis in mice with experimental B16 melanoma. The features of the organization of the rhythmicity of the tumor itself can be used in its targeted experimental therapy, taking into account chronobiological features. The results of the study can be used for further studies of the effect of various lighting modes on the morphofunctional state of the animal organism in the pathology under study.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>меланома B16</kwd><kwd>микроморфометрия</kwd><kwd>циркадный ритм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>B16 melanoma</kwd><kwd>micromorphometry</kwd><kwd>circadian rhythm</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного бюджетного финансирования, Государственного задания (№ АААА-А19119071890015-6).</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of state budget financing, within the framework of the State task (№ AAAA-A19119071890015-6).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ostrowski SM, Fisher DE. 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