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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">medsovet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский Совет</journal-title><trans-title-group xml:lang="en"><trans-title>Meditsinskiy sovet = Medical Council</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-701X</issn><issn pub-type="epub">2658-5790</issn><publisher><publisher-name>REMEDIUM GROUP Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21518/ms2025-142</article-id><article-id custom-type="elpub" pub-id-type="custom">medsovet-9061</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>ДЕРМАТОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DERMATOLOGY</subject></subj-group></article-categories><title-group><article-title>Лихеноидный парапсориаз: современные представления о патогенезе и факторах риска</article-title><trans-title-group xml:lang="en"><trans-title>Pityriasis lichenoides: Modern ideas about pathogenesis and risk factors</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3708-1145</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Султанова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sultanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Султанова Эльвира Азатовна, врач-дерматовенеролог, ассистент кафедры дерматовенерологии</p><p>450008, Республика Башкортостан, Уфа, ул. Ленина, д. 3</p></bio><bio xml:lang="en"><p>Elvira A. Sultanova, Dermatovenerologist, Assistant of the Department of Dermatovenereology</p><p>3, Lenin St., Ufa, Republic of Bashkortostan, 450008</p></bio><email xlink:type="simple">elv.sultanowa2017@yandex.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/0000-0002-2458-419X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дворянкова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dvoriankova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дворянкова Евгения Викторовна, д.м.н., главный научный сотрудник</p><p>109029, Москва, ул. Средняя Калитниковская, д. 30</p></bio><bio xml:lang="en"><p>Evgeniya V. Dvoriankova, Dr. Sci. (Med.), Chief Researcher</p><p>30, Srednyaya Kalitnikovskaya St., Moscow, 109029</p></bio><email xlink:type="simple">edvoriankova@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8674-2803</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хисматуллина</surname><given-names>З. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khismatullina</surname><given-names>Z. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хисматуллина Зарема Римовна, д.м.н., профессор, заведующая кафедрой дерматовенерологии</p><p>450008, Республика Башкортостан, Уфа, ул. Ленина, д. 3</p></bio><bio xml:lang="en"><p>Zarema R. Khismatullina, Dr. Sci. (Med.), Professor, Head of the Department of Dermatovenereology</p><p>3, Lenin St., Ufa, Republic of Bashkortostan, 450008</p></bio><email xlink:type="simple">hzr07@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Башкирский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bashkir State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр теоретических проблем физико-химической фармакологии РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center for Theoretical Problems of Physical and Chemical Pharmacology of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>05</month><year>2025</year></pub-date><volume>0</volume><issue>5</issue><fpage>166</fpage><lpage>170</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Султанова Э.А., Дворянкова Е.В., Хисматуллина З.Р., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Султанова Э.А., Дворянкова Е.В., Хисматуллина З.Р.</copyright-holder><copyright-holder xml:lang="en">Sultanova E.A., Dvoriankova E.V., Khismatullina Z.R.</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.med-sovet.pro/jour/article/view/9061">https://www.med-sovet.pro/jour/article/view/9061</self-uri><abstract><p>Лихеноидный парапсориаз (ЛП) представляет собой группу относительно редких хронических кожных заболеваний, объединенных некоторыми общими патогенетическими звеньями, клиническими симптомами и патогистологическими проявлениями. Современное состояние проблемы ЛП сопряжено со значительными трудностями не только в плане диагностики и лечения, но и определения всех звеньев патогенеза, а также связано с риском трансформации ЛП в лимфому кожи, снижением качества жизни и повышенной смертностью в данной группе больных. В статье рассматриваются литературные данные, посвященные механизму развития и провоцирующим факторам ЛП.</p><sec><title>Цель</title><p>Цель. Провести анализ литературы, посвященной особенностям патогенеза и клиники ЛП.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведен ретроспективный анализ российских и зарубежных источников литературы за период 2010–2023 гг., описывающих клинические случаи ЛП, особенности патогистологической картины, современные представления о патогенезе данного заболевания. Литература, изданная ранее 2010 г., не использовалась в анализе.</p></sec><sec><title>Результаты</title><p>Результаты. Выявлено множество провоцирующих факторов развития ЛП, таких как лекарственные средства, белковые молекулы вакцин, микроорганизмы и т. д., однако их роль не изучена до конца. Авторами большинства исследований отмечается определенный временной промежуток между подействовавшим триггерным фактором и развитием ЛП, а также сходные патогистологические проявления, позволяющие верифицировать ЛП, и клиническая эффективность различных схем лечения. Предполагается, что ЛП развивается в результате повышенной экспрессии определенных клонов Т-лимфоцитов (CD8, CD30), превращающих белковые структуры эпидермиса в антигенную мишень при перекрестной антигенной стимуляции.</p></sec><sec><title>Заключение</title><p>Заключение. В настоящее время отсутствуют четкие патогномоничные симптомы ЛП, что позволяет отнести его к группе труднодиагностируемых дерматозов и открывает широкие перспективы для дальнейшего изучения иммунологических и гистологических изменений. Перекрестная реактивность между белками кератиноцитов и белковыми молекулами различных антигенов делает актуальным изучение не только групп провоцирующих факторов, но и (возможно, в большей степени) иммунологического статуса больных ЛП. Крайне важны настороженность и соответствующий диагностический поиск со стороны дерматовенерологов для своевременного прогнозирования и выявления ЛП в группе больных с определенной иммунологической предиспозицией.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Pityriasis lichenoides (PL) is a group of relatively rare chronic skin diseases, united by some common pathogenetic links, clinical symptoms and pathohistological manifestations. The current state of the problem of PL is associated with significant difficulties not only for diagnosis and treatment, but also for determining all links of pathogenesis, and is also associated with the risk of transformation of PL into skin lymphoma, decreased quality of life and increased mortality in this group of patients. The article discusses literature data on the mechanism of development and provoking factors of PL.</p></sec><sec><title>Aim</title><p>Aim. To analyze the literature on the features of the pathogenesis and clinical picture of PL. </p></sec><sec><title>Materials and methods</title><p>Materials and methods. A retrospective analysis of Russian and foreign literature sources for the period 2010–2023 was carried out, describing clinical cases of PL, features of the pathohistological picture, and modern ideas about the pathogenesis of this disease. Literature published before 2010 was not used in the analysis.</p></sec><sec><title>Results</title><p>Results. Many provoking factors for the development of PL have been identified, such as drugs, protein molecules of vaccines, microorganisms, etc., but their role has not been fully studied. The authors of most studies note a certain time interval between the acting trigger factor and the development of PL, as well as similar histopathological manifestations that allow to verify PL, and the clinical effectiveness of various treatment regimens. It is assumed that PL develops as a result of increased expression of certain clones of T-lymphocytes (CD8, CD30), which convert the protein structures of the epidermis into an antigenic target during antigenic cross-stimulation.</p></sec><sec><title>Conclusion</title><p>Conclusion. Currently, there are no clear pathognomonic symptoms of PL, which makes it possible to classify it as a difficult-to-diagnose dermatoses and opens up broad prospects for further study of immunological and histological changes. Crossreactivity between keratinocyte proteins and protein molecules of various antigens makes it relevant to study not only groups of provoking factors, but also (perhaps to a greater extent) the immunological status of patients with PL. Alertness and appropriate diagnostic search on the part of dermatovenerologists are extremely important for timely prediction and detection of PL in a group of patients with a certain immunological predisposition.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>парапсориаз лихеноидный</kwd><kwd>лихеноидный питириаз</kwd><kwd>иммунитет</kwd><kwd>инфекция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>parapsoriasis lichenoides</kwd><kwd>lichenoid pityriasis</kwd><kwd>immunity</kwd><kwd>infection</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">Gunatheesan S, Ferguson J, Moosa Y. 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