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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">Acta Naturae</journal-id><journal-title-group><journal-title xml:lang="en">Acta Naturae</journal-title><trans-title-group xml:lang="ru"><trans-title>Acta Naturae</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-8251</issn><publisher><publisher-name xml:lang="en">Acta Naturae Ltd</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10490</article-id><article-id pub-id-type="doi">10.32607/20758251-2015-7-2-42-47</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Reviews</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Обзоры</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">NeuN As a Neuronal Nuclear Antigen and Neuron Differentiation Marker</article-title><trans-title-group xml:lang="ru"><trans-title>NeuN - нейрональный ядерный антиген и маркер дифференцировки нервных клеток</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gusel’nikova</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Гусельникова</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>Valeriia@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korzhevskiy</surname><given-names>D. E.</given-names></name><name xml:lang="ru"><surname>Коржевский</surname><given-names>Д. Э.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>Guselnicova.Valeriia@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal State Budgetary Scientific Institution “Institute of Experimental Medicine</institution></aff><aff><institution xml:lang="ru">Институт экспериментальной медицины</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2015-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2015</year></pub-date><volume>7</volume><issue>2</issue><issue-title xml:lang="en">VOL 7, NO2 (2015)</issue-title><issue-title xml:lang="ru">ТОМ 7, №2 (2015)</issue-title><fpage>42</fpage><lpage>47</lpage><history><date date-type="received" iso-8601-date="2020-01-17"><day>17</day><month>01</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2015, Gusel’nikova V.V., Korzhevskiy D.E.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2015, Гусельникова В.В., Коржевский Д.Э.</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="en">Gusel’nikova V.V., Korzhevskiy D.E.</copyright-holder><copyright-holder xml:lang="ru">Гусельникова В.В., Коржевский Д.Э.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://actanaturae.ru/2075-8251/article/view/10490">https://actanaturae.ru/2075-8251/article/view/10490</self-uri><abstract xml:lang="en"><p>The NeuN protein is localized in nuclei and perinuclear cytoplasm of most of the neurons in the central nervous system of mammals. Monoclonal antibodies to the NeuN protein have been actively used in the immunohistochemical research of neuronal differentiation to assess the functional state of neurons in norm and pathology for more than 20 years. Recently, NeuN antibodies have begun to be applied in the differential morphological diagnosis of cancer. However, the structure of the protein, which can be revealed by antibodies to NeuN, remained unknown until recently, and the functions of the protein are still not fully clear. In the present mini-review, data on NeuN accumulated so far are summarized and analyzed. Data on the structure and properties of the protein, its isoforms, intracellular localization, and hypothesized functions are reported. The application field of immunocytochemical detection of NeuN in scientific and clinical studies, as well as the difficulties in the interpretation of the obtained experimental data and their possible causes, is described in details.</p></abstract><trans-abstract xml:lang="ru"><p>Белок NeuN локализуется в ядрах и перинуклеарной цитоплазме большинства нейронов центральной нервной системы млекопитающих. Моноклональные антитела к белку NeuN уже более 20 лет активно используются в иммуногистохимических исследованиях нейрональной дифференцировки для оценки состояния нервных клеток в норме и при патологии, а в последнее время и в дифференциальной морфологической диагностике онкологических заболеваний. При этом структура белка, выявляемого антителами к NeuN, до недавнего времени оставалась неизвестной, а функции этого белка не вполне понятны и на сегодняшний день. В представленном мини-обзоре обобщены и проанализированы сведения о белке NeuN: приведены данные о структуре и свойствах белка, его изоформах, внутриклеточной локализации и предполагаемых функциях, подробно описано применение метода иммуноцитохимической детекции белка NeuN в научных и клинических исследованиях, а также трудности, возникающие при интерпретации экспериментальных данных, и их возможные причины.</p></trans-abstract><kwd-group xml:lang="en"><kwd>NeuN nuclear protein</kwd><kwd>neuron specific marker</kwd><kwd>neurons</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>нейроны</kwd><kwd>нейрон-специфический маркер</kwd><kwd>ядерный белок NeuN</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the Russian Science Foundation (project No. 14-15-00014).</funding-statement><funding-statement xml:lang="ru">Работа поддержана РНФ (проект № 14-15-00014).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>[1] Ugrumov M.V. // J Chem Neuroanat. 2009, V.38, №4, P.241-256</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>[2] Ugrumov M., Taxi J., Pronina T., Kurina A., Sorokin A., Sapronova A., Calas A. // Neuroscience. 2014, V.277, P.45-54</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>[3] Korzhevskii D. 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