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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">Journal of Volgograd State Medical University</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Volgograd State Medical University</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Волгоградского государственного медицинского университета</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-9480</issn><issn publication-format="electronic">1994-9499</issn><publisher><publisher-name xml:lang="en">Volgograd State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">630314</article-id><article-id pub-id-type="doi">10.19163/1994-9480-2024-21-1-119-125</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Researches</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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">Features of cytokeratin-7 and cytokeratin-14 expression in the cervix in women with cervical intraepithelial neoplasia</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности экспрессии цитокератина-7 и цитокератина-14 в шейке матки у женщин с цервикальной интраэпителиальной неоплазией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-8713-1161</contrib-id><name-alternatives><name xml:lang="en"><surname>Balabekov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Балабеков</surname><given-names>Андрей Вагифович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Associate Professor of the Department of Pathological Anatomy, Candidate of Medical Sciences</p></bio><bio xml:lang="ru"><p>доцент кафедры патологической анатомии, кандидат медицинских наук</p></bio><email>balabekov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6074-4229</contrib-id><name-alternatives><name xml:lang="en"><surname>Chukov</surname><given-names>S. Z.</given-names></name><name xml:lang="ru"><surname>Чуков</surname><given-names>Сергей Залимович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Head of the Department of Pathological Anatomy, Professor, Doctor of Medical Sciences</p></bio><bio xml:lang="ru"><p>заведующий кафедрой патологической анатомии, профессор, доктор медицинских наук</p></bio><email>chukov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-2587-9215</contrib-id><name-alternatives><name xml:lang="en"><surname>Tuzhilina</surname><given-names>O. S.</given-names></name><name xml:lang="ru"><surname>Тужилина</surname><given-names>Ольга Святославовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Postgraduate student of the Department of Pathological Anatomy</p></bio><bio xml:lang="ru"><p>аспирант кафедры патологической анатомии</p></bio><email>Olgatuzilina0313@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Stavropol State Medical University</institution></aff><aff><institution xml:lang="ru">Ставропольский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2024</year></pub-date><volume>21</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>119</fpage><lpage>125</lpage><history><date date-type="received" iso-8601-date="2024-04-13"><day>13</day><month>04</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-04-13"><day>13</day><month>04</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Balabekov A.V., Chukov S.Z., Tuzhilina O.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Балабеков А.В., Чуков С.З., Тужилина О.С.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Balabekov A.V., Chukov S.Z., Tuzhilina O.S.</copyright-holder><copyright-holder xml:lang="ru">Балабеков А.В., Чуков С.З., Тужилина О.С.</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://journals.eco-vector.com/1994-9480/article/view/630314">https://journals.eco-vector.com/1994-9480/article/view/630314</self-uri><abstract xml:lang="en"><p>Determination of the activity of expression of cytokeratins 7 and 14 in the ectocervix and foci of endocervicosis in women with cervical intraepithelial neoplasia detected by routine histological examination using hematoxylin-eosin staining. <bold>Material and methods</bold>: Cervix with identified cervical intraepithelial neoplasia caused by infection with human papillomavirus (HPV) of varying degrees of pathogenicity (low-risk human papillomavirus (LR–HPV) – types 6 and 11 (<italic>n</italic> = 9), intermediate – types 26, 53, 66 (<italic>n</italic> = 25), as well as high-risk viruses oncogenic risk (HPV) – 16, 18, 31, 33 types (<italic>n</italic> = 19). The comparison group consisted of fragments of the cervix without cervical intraepithelial neoplasia confirmed by routine histological examination (<italic>n</italic> = 20). The expression of cytokeratin-7 and 14 in the ectocervix and foci of cervical endocervicosis was evaluated using a standard immunohistochemical method. <bold>Results</bold>: LSIL/CIN-1, associated with infection with LR-HPV types 6 and 11, is characterized by the absence of expression of SC-7 and weak, in some cases moderate expression of SC-14. HSIL/CIN-2, associated with infection with HPV types 26, 53, 66, is characterized by weak expression of SC-7 and moderate expression of SC-14. HSIL/CIN-3, associated with infection with HPV types 16, 18, 31, 33, is characterized by moderate expression of SC-7 and high expression of SC-14. In the control group of comparison, in the vast majority of cases, negative or weak expression of CC-7 and SC-14 is noted. <bold>Conclusion</bold>: Features of the expression of SC-7 and SC-14 in the ectocervix, the transformation zone and foci of cervical endocervicosis with HPV infection detected should be taken into account as morphological criteria for diagnosis. These criteria should be considered as the principle of standardization of morphological examination of the cervix, since using this method shows a sufficiently high reliability of early detection of precancerous diseases.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования.</bold> Определение активности экспрессии цитокератинов 7 и 14 в эктоцервиксе и очагах эндоцервикоза у женщин с цервикальной интраэпителиальной неоплазией, обнаруженной при рутинном методе гистологического исследования при окраске гематоксилином-эозином. <bold>Материал и методы. </bold>Шейки матки с выявленной цервикальной интраэпителиальной неоплазией, обусловленной инфицированием вирусом папилломы человека (ВПЧ) различной степени патогенности (вирусы папилломы человека низкого онкогенного риска (LR-HPV) – типы 6 и 11 (<italic>n</italic> = 9), промежуточного – типы 26, 53, 66 (<italic>n</italic> = 25), а также вирусы высокого онкогенного риска (НR-HPV) – типы 16, 18, 31, 33 (<italic>n</italic> =19). Группа сравнения – фрагменты шейки матки без подтвержденной при рутинном гистологическом исследовании цервикальной интраэпителиальной неоплазии (<italic>n</italic> = 20). С помощью стандартного иммуногистохимического метода оценили экспрессию цитокератина-7 и 14 в эктоцервиксе и очагах эндоцервикоза шейки матки. <bold>Результаты. </bold>LSIL/CIN-1, сопряженная с инфицированием LR-HPV типов 6 и 11, характеризуется отсутствием экспрессии СК-7 и слабой, в некоторых случаях умеренной экспрессией СК-14. HSIL/CIN-2, сопряженная с инфицированием НR-HPV типов 26, 53, 66 характеризуется слабой экспрессией СК-7 и умеренной экспрессией СК-14. HSIL/CIN-3, сопряженная с инфицированием НR-HPV типов 16, 18, 31, 33 характеризуется умеренной экспрессией СК-7 и высокой экспрессией СК-14. В контрольной группе сравнения в подавляющем большинстве случаев отмечается отрицательная или слабая экспрессия ЦК-7 и СК-14. <bold>Заключение. </bold>Особенности экспрессии СК-7 и СК-14 в эктоцервиксе, зоне трансформации и очагах эндоцервикоза шейки матки при выявленном инфицировании ВПЧ необходимо учитывать в качестве морфологических критериев для постановки диагноза. Данные критерии следует рассматривать как принцип стандартизации морфологического исследования шейки матки, поскольку при использовании данного метода показана достаточно высокая достоверность раннего выявления предраковых заболеваний.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cervical intraepithelial neoplasia</kwd><kwd>human papillomavirus</kwd><kwd>immunohistochemical study</kwd><kwd>cervical cancer</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>цервикальная интраэпителиальная неоплазия</kwd><kwd>вирус папилломы человека</kwd><kwd>иммуногистохимическое исследование</kwd><kwd>рак шейки матки</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Danilova N.V., Andreeva Yu.Yu., Zavalishina L.E. et al. Markers of apoptosis and cell cycle regulatory proteins in background and precancerous changes in the glandular epithelium of the cervix. Onkologiya. Zhurnal im. P.A. 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