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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 Allergy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Allergy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский аллергологический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-682X</issn><issn publication-format="electronic">1810-8830</issn><publisher><publisher-name xml:lang="en">Farmarus Print Media</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">375451</article-id><article-id pub-id-type="doi">10.36691/RJA17059</article-id><article-id pub-id-type="edn">UPTOKD</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Case reports</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Клинические случаи</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">Genotype and phenotype features in pruriginous form of epidermolysis bullosa: clinical observations</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности генотипа и фенотипа при пруригинозной форме буллезного эпидермолиза: клинические наблюдения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2252-8570</contrib-id><contrib-id contrib-id-type="spin">5906-9724</contrib-id><name-alternatives><name xml:lang="en"><surname>Murashkin</surname><given-names>Nikolay N.</given-names></name><name xml:lang="ru"><surname>Мурашкин</surname><given-names>Николай Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>д-р мед. наук</p></bio><email>m_nn2001@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-6642-5776</contrib-id><contrib-id contrib-id-type="spin">3508-6982</contrib-id><name-alternatives><name xml:lang="en"><surname>Orlova</surname><given-names>Olga S.</given-names></name><name xml:lang="ru"><surname>Орлова</surname><given-names>Ольга Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>orlova@deti-bela.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4107-4642</contrib-id><contrib-id contrib-id-type="spin">5162-7846</contrib-id><name-alternatives><name xml:lang="en"><surname>Epishev</surname><given-names>Roman V.</given-names></name><name xml:lang="ru"><surname>Епишев</surname><given-names>Роман Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>drepishev@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6648-2063</contrib-id><contrib-id contrib-id-type="spin">2928-5764</contrib-id><name-alternatives><name xml:lang="en"><surname>Pushkov</surname><given-names>Aleksandr A.</given-names></name><name xml:lang="ru"><surname>Пушков</surname><given-names>Александр Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>pushkovgenetika@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6562-3140</contrib-id><contrib-id contrib-id-type="spin">4773-1033</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuratova</surname><given-names>Alena A.</given-names></name><name xml:lang="ru"><surname>Куратова</surname><given-names>Алена Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>akuratova@deti-bela.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5618-7490</contrib-id><contrib-id contrib-id-type="spin">1491-8800</contrib-id><name-alternatives><name xml:lang="en"><surname>Polenova</surname><given-names>Viktoria S.</given-names></name><name xml:lang="ru"><surname>Поленова</surname><given-names>Виктория Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vpolenova@deti-bela.ru</email><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center for Children’s Health</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр здоровья детей</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University (Sechenovskiy University)</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет имени И.М. Сеченова (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Central State Medical Academy</institution></aff><aff><institution xml:lang="ru">Центральная государственная медицинская академия</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Charitable Foundation “BELA. Children-Butterflies”</institution></aff><aff><institution xml:lang="ru">Благотворительный фонд «БЭЛА. Дети-бабочки»</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Russian Medical Academy of Continuing Professional Education</institution></aff><aff><institution xml:lang="ru">Российская медицинская академия непрерывного профессионального образования</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-25" publication-format="electronic"><day>25</day><month>12</month><year>2025</year></pub-date><volume>22</volume><issue>4</issue><fpage>438</fpage><lpage>445</lpage><history><date date-type="received" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, ABV-press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, ИД "АБВ-пресс"</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">ABV-press</copyright-holder><copyright-holder xml:lang="ru">ИД "АБВ-пресс"</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2027-12-25"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://rusalljournal.ru/raj/user</ali:license_ref></license></permissions><self-uri xlink:href="https://ogarev-online.ru/raj/article/view/375451">https://ogarev-online.ru/raj/article/view/375451</self-uri><abstract xml:lang="en"><p>Epidermolysis bullosa is a group of rare genetic skin diseases, the common feature of which is a tendency to form blisters and/or erosions on the skin and mucous membranes due to minimal trauma. Phenotypic manifestations and severity of epidermolysis bullosa depend on the genotype, while pathogenic variants in the same gene can lead to different forms of epidermolysis bullosa, inherited in both autosomal dominant and autosomal recessive patterns. Currently, more than twenty genes are known, pathogenic variants in which can lead to the development of various forms of epidermolysis bullosa. It is worth noting that causal variants in different genes can cause similar clinical phenotypes, which significantly complicates the understanding of the pathogenetic mechanisms of the disease. In addition to the association of individual genes with certain phenotypes, a correlation has also been established between specific variants within the same gene and the clinical severity of the disease. Phenotype variability in epidermolysis bullosa is observed both between different subtypes and within each of them — from cases with minimal and barely noticeable manifestations to severe forms with pronounced cutaneous and systemic lesions caused by significant disruption of the dermal-epidermal junction, including the basement membrane, adjacent basal keratinocytes and connective tissue structures.</p> <p>This article presents cases of clinically identical manifestations — pruriginous rashes in different genotypes occurring in epidermolysis bullosa children.</p></abstract><trans-abstract xml:lang="ru"><p>Врожденный буллезный эпидермолиз — группа редких генетических заболеваний кожи, общей чертой которых является склонность к образованию пузырей и/или эрозий на коже и слизистых оболочках вследствие минимальной травматизации. Фенотипические проявления и тяжесть течения врожденного буллезного эпидермолиза зависят от генотипа, при этом патогенные варианты в одном и том же гене могут приводить к различным формам заболевания, наследуемым как по аутосомно-доминантному, так и по аутосомно-рецессивному типу. Известно более 20 генов, патогенные варианты в которых могут приводить к развитию различных форм врожденного буллезного эпидермолиза. При этом каузальные варианты в разных генах способны обусловливать сходный клинический фенотип, что значительно осложняет понимание патогенетических механизмов заболевания. Помимо ассоциации отдельных генов с определенными фенотипами, также установлена корреляция вариантов в пределах одного и того же гена с клинической выраженностью заболевания. Вариабельность фенотипа при врожденном буллезном эпидермолизе наблюдается как между различными подтипами, так и внутри каждого из них — от случаев с минимальными и едва заметными проявлениями до тяжелых форм с выраженным кожным и системным поражением, обусловленных значительным нарушением дермо-эпидермального соединения, включающего базальную мембрану, прилежащие базальные кератиноциты и структуры соединительной ткани.</p> <p>В статье приведены случаи клинически одинаковых проявлений — пруригинозных высыпаний при различных генотипах, встречающихся у детей с врожденным буллезным эпидермолизом.</p></trans-abstract><kwd-group xml:lang="en"><kwd>epidermolysis bullousa</kwd><kwd>pruriginous phenotype</kwd><kwd>PLEC</kwd><kwd>COL7A1</kwd><kwd>dupilumab</kwd><kwd>children</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>врожденный буллезный эпидермолиз</kwd><kwd>пруригинозный фенотип</kwd><kwd>PLEC</kwd><kwd>COL7A1</kwd><kwd>дупилумаб</kwd><kwd>дети</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Has C, Bauer JW, Bodemer C, et al. 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