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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Genes &amp; Cells</journal-id><journal-title-group><journal-title xml:lang="en">Genes &amp; Cells</journal-title><trans-title-group xml:lang="ru"><trans-title>Гены и Клетки</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>Genes and Cells</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-1829</issn><issn publication-format="electronic">2500-2562</issn><publisher><publisher-name xml:lang="en">Human Stem Cells Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">121611</article-id><article-id pub-id-type="doi">10.23868/gc121611</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Histogenesis of solid-pseudopapillary tumor of a pancreas</article-title><trans-title-group xml:lang="ru"><trans-title>Гистогенез солидно псевдопапиллярной опухоли поджелудочной железы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Paklina</surname><given-names>O. V</given-names></name><name xml:lang="ru"><surname>Паклина</surname><given-names>О. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gordienko</surname><given-names>E. N</given-names></name><name xml:lang="ru"><surname>Гордиенко</surname><given-names>Е. Н</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chekmareva</surname><given-names>I. A</given-names></name><name xml:lang="ru"><surname>Чекмарева</surname><given-names>И. А</given-names></name></name-alternatives><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A.I. Burnazyan Federal Medical Biophysical Center of FMBA, Russia</institution></aff><aff><institution xml:lang="ru">Федеральный медицинский биофизический центр им. А.И. Бурназяна ФМБА РФ, Москва</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">A.V. Vishnevsky Research Institute of Surgery, Moscow</institution></aff><aff><institution xml:lang="ru">Институт хирургии им. А.В. Вишневского МЗ РФ, Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2013</year></pub-date><volume>8</volume><issue>2</issue><issue-title xml:lang="en">VOL 8, NO2 (2013)</issue-title><issue-title xml:lang="ru">ТОМ 8, №2 (2013)</issue-title><fpage>64</fpage><lpage>68</lpage><history><date date-type="received" iso-8601-date="2023-01-11"><day>11</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2013, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2013, Эко-Вектор</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://genescells.ru/2313-1829/article/view/121611">https://genescells.ru/2313-1829/article/view/121611</self-uri><abstract xml:lang="en"><p>Solid-pseudopapillary tumor (SPPO) is a rare tumor of a pancreas with unknown histogenesis. In this regards some theories about its development are discussed including genesis from so called cancer stem cells, which can be derivative of embryonic ovaries primordiums. We studied 11 SPPO and 5 ovarian granulosa cell tumors (GCT) adult type by electron microscopy. A comparative ultrastructural study identified similar features in GCT and SPPO: the presence of two cells types, one of which with characteristic nuclei with deep invaginations nukleolemmy as longitudinal furrows, intercellular contacts in the form of desmosomes, in the tissues quite large number of capillaries in the active state were detected. Among all ovarian tumors developing from cells of sex cord stroma SPPO is the most close to GCT. They are related not only due to morphological similarity, but the biological potential, the clinical course and disease prognosis. Our studies confirm the theory of embryonic migration of ovaries primordiums cells with their subsequent contribution to SPPO histogenesis.</p></abstract><trans-abstract xml:lang="ru"><p>Солидно-псевдопапиллярная опухоль (СППО) — редкая опухоль поджелудочной железы (ПЖ) с неизвестным гистогенезом, в связи с чем дискутируются несколько теорий её развития, включая генез из так называемых раковых стволовых клеток, которые могут являться дериватами эмбриональных зачатков яичников. Исследовали 11 СППО ПЖ и 5 гранулезоклеточных опухолей яичников (ГКО) взрослого типа методом электронной микроскопии. При сравнительном ультраструктурном исследовании определялись сходные признаки как в ГКО, так и в СППО: наличие двух типов клеток, один из которых с характерными ядрами с глубокими инвагинациями нукле-олеммы в виде продольных борозд, межклеточные контакты в виде десмосом, в тканях определялось достаточно большое количество капилляров, находящихся в активном состоянии. Из всех опухолей яичника, развивающихся из клеток стромы полового тяжа, СППО наиболее близка к ГКО. Их роднит не только морфологическое сходство, но и биологический потенциал, клиническое течение и прогноз заболевания. Проведенные исследования свидетельствуют в пользу теории эмбриональной миграции клеток зачатков яичников с их последующим вкладом в гистогенез солидно-псевдо-папиллярной опухоли поджелудочной железы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>solid-pseudopapillary tumor</kwd><kwd>a pancreas</kwd><kwd>histogenesis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>солидно-псевдопапиллярная опухоль</kwd><kwd>поджелудочная железа</kwd><kwd>гистогенез</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Frantz V.K. Papillary tumors of the pancreas: Benign or malignant? Tumors of the pancreas. 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