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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">Russian Journal of Skin and Venereal Diseases</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Skin and Venereal Diseases</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский журнал кожных и венерических болезней</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1560-9588</issn><issn publication-format="electronic">2412-9097</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">532726</article-id><article-id pub-id-type="doi">10.17816/dv532726</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DERMATOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДЕРМАТОЛОГИЯ</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">Polymorphic photodermatosis as a disease of failed apoptotic clearance in immune-mediated inflammation and the description of a clinical case</article-title><trans-title-group xml:lang="ru"><trans-title>Полиморфный фотодерматоз как пример нарушения выраженности апоптоза при иммуноопосредованном воспалении с описанием клинического случая</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3960-1279</contrib-id><contrib-id contrib-id-type="spin">1993-5439</contrib-id><name-alternatives><name xml:lang="en"><surname>Selitskaya</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Селицкая</surname><given-names>Ольга Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент</p></bio><email>Selickaya@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Professor V.F. Voino-Yasenetsky Krasnoyarsk State Medical University</institution></aff><aff><institution xml:lang="ru">Красноярский государственный медицинский университет имени профессора В.Ф. Войно-Ясенецкого</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-11-17" publication-format="electronic"><day>17</day><month>11</month><year>2023</year></pub-date><volume>26</volume><issue>5</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>507</fpage><lpage>514</lpage><history><date date-type="received" iso-8601-date="2023-07-08"><day>08</day><month>07</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-09-11"><day>11</day><month>09</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Эко-Вектор</copyright-statement><copyright-year>2023</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/" start_date="2026-11-17"/></permissions><self-uri xlink:href="https://rjsvd.com/1560-9588/article/view/532726">https://rjsvd.com/1560-9588/article/view/532726</self-uri><abstract xml:lang="en"><p>Polymorphic photodermatosis is the most common, acquired skin disease characterized by an abnormal, recurrent, and delayed response to sunlight.</p> <p>In this article, modern views on the etiology of pathogenesis are described clinical picture, differential diagnosis, principles of treatment and prevention of polymorphic photodermatosis. The pathogenesis of this disease is a form of delayed-type hypersensitivity reaction to photoantigens. The abnormal immune response has been attributed to the immunosuppressive effects of sunlight due to a breakdown in allergen tolerance and a disruption in the mechanisms of apoptosis.</p> <p>The main symptoms of the disease are erythema and highly itchy elements of skin lesions, which are very diverse, most often represented by macules, papules and vesicles, or vesiculo-bullous, urticarial, hemorrhagic rashes, hence the name of the disease polymorphic photodermatosis. Usually one morphology prevails in one patient. The article presents a clinical case and the results of their own observations.</p> <p>Studies of the pathogenesis of polymorphic photodermatosis have confirmed the presence of an abnormal immune response. The exact mechanism of immunosuppression caused by ultraviolet radiation and the relative contribution of UV-B and UV-A in healthy people are still unclear, but the expression of TNF-alpha, IL-4 and IL-10 and the depletion of Langerhans cells appear to be key phenomena.</p> <p>Diagnosis of the disease based on the clinical picture. The need for differential diagnosis of various forms of polymorphic photodermatosis is due to their clinical and sometimes histological similarity with other skin formations. For more accurate verification of the diagnosis, a biopsy of the examined skin area is possible, followed by histology. The histology of polymorphic photodermatosis is nonspecific, in accordance with the polymorphic clinical picture, as well as depending on the timing of the biopsy.</p> <p>Further studies of the pathological mechanisms underlying polymorphic photodermatosis may allow us to develop a more targeted approach to conservative treatment and prevention.</p></abstract><trans-abstract xml:lang="ru"><p>Полиморфный фотодерматоз является приобретённым заболеванием и представляет собой наиболее распространённую патологию кожи из группы фотодерматозов с аномальной рецидивирующей замедленной реакцией на солнечный свет.</p> <p>В основе патогенеза данного заболевания лежит форма реакции гиперчувствительности замедленного типа на фотоантигены. Аномальный иммунный ответ объясняется иммуносупрессивным эффектом солнечного света, детерминированным сбоем толерантности к аллергену с последующим нарушением в механизмах апоптоза.</p> <p>Основными симптомами заболевания являются эритемы и зудящие элементы на коже, отличающиеся большим разнообразием и чаще всего представленные пятнами, папулами и везикулами или везикулёзно-буллёзными уртикарными геморрагическими высыпаниями, что и обусловливает название заболевания.</p> <p>Исследование патогенеза полиморфного фотодерматоза подтвердило наличие аномального иммунного ответа. Точный механизм иммуносупрессии, вызванной ультрафиолетовым излучением, и относительный вклад лучей типа В и А у здоровых людей пока не ясны, но экспрессия фактора некроза опухоли альфа, интерлейкинов 4 и 10 и истощение клеток Лангерганса являются, по-видимому, ключевыми параметрами.</p> <p>В статье приведены обновлённые аспекты этиологии и патогенеза полиморфного фотодерматоза; акцентировано внимание на дифференциальную диагностику, принципы лечения и профилактики полиморфного фотодерматоза; представлены клинический случай и результаты собственных наблюдений.</p> <p>Дальнейшие исследования патологических механизмов, лежащих в основе полиморфного фотодерматоза, позволят разработать более целенаправленный подход к консервативному лечению и профилактике заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>apoptosis</kwd><kwd>dendritic cells</kwd><kwd>polymorphic photodermatosis</kwd><kwd>IgE</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>апоптоз</kwd><kwd>дендритные клетки</kwd><kwd>полиморфный фотодерматоз</kwd><kwd>IgE</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">Lembo S, Raimondo A. 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