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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">Vestnik dermatologii i venerologii</journal-id><journal-title-group><journal-title xml:lang="en">Vestnik dermatologii i venerologii</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник дерматологии и венерологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0042-4609</issn><issn publication-format="electronic">2313-6294</issn><publisher><publisher-name xml:lang="en">Rossijskoe Obschestvo Dermatovenerologov i Kosmetologov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1314</article-id><article-id pub-id-type="doi">10.25208/vdv1314</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НАУЧНЫЕ 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">The peripheral blood regulatory T-cells analysis as a criterion for assessing the therapy efficacy and a prognostic marker for the duration of remission of psoriasis</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ уровня регуляторных Т-клеток периферической крови как критерий оценки эффективности терапии и прогностический маркер продолжительности ремиссии псориаза</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2482-1754</contrib-id><contrib-id contrib-id-type="scopus">55829948600</contrib-id><contrib-id contrib-id-type="spin">2500-7989</contrib-id><name-alternatives><name xml:lang="en"><surname>Olisova</surname><given-names>Olga Yu.</given-names></name><name xml:lang="ru"><surname>Олисова</surname><given-names>Ольга Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>olisovaolga@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8175-7886</contrib-id><contrib-id contrib-id-type="spin">1443-1090</contrib-id><name-alternatives><name xml:lang="en"><surname>Gudova</surname><given-names>Vladislava V.</given-names></name><name xml:lang="ru"><surname>Гудова</surname><given-names>Владислава Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student</p></bio><bio xml:lang="ru"><p>аспирант кафедры</p></bio><email>lakmus1991@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University (Sechenov University)</institution></aff><aff><institution xml:lang="ru">Первый МГМУ им. И.М. Сеченова Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-07-21" publication-format="electronic"><day>21</day><month>07</month><year>2022</year></pub-date><volume>98</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>34</fpage><lpage>42</lpage><history><date date-type="received" iso-8601-date="2022-03-14"><day>14</day><month>03</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-05-11"><day>11</day><month>05</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Olisova O.Y., Gudova V.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Олисова О.Ю., Гудова В.В.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Olisova O.Y., Gudova V.V.</copyright-holder><copyright-holder xml:lang="ru">Олисова О.Ю., Гудова В.В.</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://vestnikdv.ru/jour/article/view/1314">https://vestnikdv.ru/jour/article/view/1314</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> The recently discovered regulatory T-cells CD4+CD25+FOXP3+CD127low (T<sub>reg</sub>-cells) plays an important role in sustaining immune tolerance. These cells demonstrated a significant tremendous potential in suppressing the pathological immune response associated with various autoimmune diseases, including psoriasis vulgaris (VP).</p> <p><bold>Aims.</bold> To find the role of T<sub>reg</sub>-cells in VP pathogenesis and to show the possible use of the T<sub>reg</sub>-cells analysis for diagnosis, remission duration prediction and measurement of therapeutic effectiveness.</p> <p><bold>Materials and methods.</bold> We studied 60 VP patients (35 females and 25 males) aged 18–55. The patients were diagnosed with VP at advanced, remedial and retrogressive phases (28, 19 and 13 participants, respectively). The disease severity was assessed with the PASI (Psoriasis Area and Severity Index). The patients were stratified into two groups based on disease duration (less than 20 years, <italic>n</italic> = 42; over 20 years, <italic>n</italic> = 28). The study involved 12 VP patients in the advanced stage, whose T<sub>reg</sub> level was tested prior and after 311 nm UVB course. We followed up the VP patients for two years following the UVB-311 nm phototherapy course to assess the remission duration and the relapse frequency.</p> <p><bold>Results.</bold> We found lower levels of Тreg in patients in the study group. T<sub>reg</sub> peripheral blood levels in VP patients and in HD were 2.84 ± 1.00% and 4.02 ± 0.73%, respectively. The T<sub>reg</sub> levels were 2.59 ± 0.68%, 2.82 ± 1.55% and 3.68 ± 1.62% at advanced, remedial and retrogressive stages, respectively. The patients with the VP history less than 20 years demonstrated T<sub>reg</sub> level of 3.42 ± 1.11% and 2.31 ± 0.62% for patients with VP history over 20 years. We found an inverse correlation between the T<sub>reg</sub> subpopulation CD4+CD25+FOXP3+CD127low and the VP severity level evaluated with PASI (<italic>r</italic> = –</p> <p>0.39). The UVB-311 nm phototherapy resulted in the significant T<sub>reg</sub> level increase in 12 patients (2.11 ± 0.61% and 3.43 ± 1.02% prior and after therapy, respectively). Subsequently, we revealed the direct correlation (<italic>r</italic> = 0.88) between the T<sub>reg</sub> cell level increase in patients prior and after the phototherapy and the duration of remission in this group of the VP patients.</p> <p><bold>Conclusions.</bold> We found decreased in T<sub>reg</sub> levels in VP patients compared to HD and revealed correlation between T<sub>reg</sub>-cells level in VP patients and VP phases, duration and the severity of the clinical picture. We demonstrated T<sub>reg</sub> feasibility as a laboratory indicator of VP therapy treatment with the example of 311 nm UVB and as a predict factor of remission duration.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Регуляторные Т-клетки играют ключевую роль в патогенезе псориаза. Их более подробное изучение открывает перспективы в создании эффективных методов лечения и диагностики псориаза.</p> <p><bold>Цель исследования.</bold> Обосновать возможность применения анализа уровня Т<sub>рег</sub>-клеток для оценки эффективности терапии вульгарного псориаза (ВП) и в качестве маркера продолжительности ремиссии.</p> <p><bold>Методы.</bold> В исследовании участвовали 60 пациентов с ВП (25 мужчин, 35 женщин) в возрасте 18–55 лет. У 28 больных отмечалась прогрессирующая, у 19 — стационарная, у 13 — регрессирующая стадия. Для определения степени тяжести для каждого пациента высчитывался индекс PASI. Пациенты были разделены на две группы в зависимости от длительности заболевания (42 пациента — менее 20 лет, 18 пациентов — 20 лет и более). Для каждого участника исследования определялся уровень субпопуляции Т<sub>рег</sub> CD4+CD25+FOXР3+CD127low при помощи метода проточной цитометрии. Мы также провели наблюдение за пациентами с ВП на протяжении двух лет после завершения курса фототерапии УФБ-311 нм для оценки продолжительности ремиссии. В качестве контрольной группы нами были обследованы 42 здоровых донора, соответствующих больным основной группы по возрасту. Для статистической обработки использовалась программа Statsoft Statistica 8.0. Достоверными считали различия при <italic>р</italic> &lt; 0,05.</p> <p><bold>Результаты.</bold> В ходе исследования установлено, что показатель относительного количества Т<sub>рег</sub>-клеток в периферической крови (2,84 ± 1,00%) значимо ниже по сравнению с группой контроля здоровых доноров (4,02 ± 0,73%). Продемонстрировано, что уровни Т<sub>рег</sub>-клеток при обострении ВП последовательно повышаются от прогрессирующей (2,59 ± 0,68%), стационарной (2,82 ± 1,55%) и до регрессирующей стадии (3,68 ± 1,62%); при давности заболевания менее 20 лет уровень Т<sub>рег</sub> был выше (3,42 ± 1,11%), чем у болеющих более 20 лет (2,31 ± 0,62%). Также была выявлена обратная корреляция (<italic>r</italic> = –0,39) между PASI и уровнем T<sub>рег</sub>. После фототерапии улучшение клинической картины сопровождалось статистически значимым приростом уровня Т<sub>рег</sub> (2,11 ± 0,61% до начала и 3,43 ± 1,02% после курса терапии, <italic>р</italic> &lt; 0,05). При наблюдении больных после курса УФБ-311 нм в течение 24 месяцев выявлена прямая зависимость между приростом уровня Т<sub>рег</sub>-клеток и продолжительностью ремиссии (<italic>r</italic> = 0,88), что позволяет рассматривать уровни Т<sub>рег</sub>-клеток как терапевтические и прогностические маркеры.</p> <p><bold>Заключение.</bold> Полученные данные наглядно демонстрируют возможность применения анализа уровня Т<sub>рег</sub>-клеток у больных ВП в качестве маркера эффективности терапии и прогностического фактора продолжительности терапии. Подобный подход позволит сделать терапию ВП максимально персонифицированной.</p></trans-abstract><kwd-group xml:lang="en"><kwd>psoriasis</kwd><kwd>autoimmune disease</kwd><kwd>T-lymphocytes</kwd><kwd>phototherapy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>псориаз</kwd><kwd>аутоиммунное заболевание</kwd><kwd>регуляторные Т-клетки</kwd><kwd>фототерапия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Олисова О. Ю., Гаранян Л. Г. Эпидемиология, этиопатогенез и коморбидность при псориазе — новые факты. Российский журнал кожных и венерических болезней. 2017;20(4):214–219 [Olisova OY, Garanyan LG. Epidemiology, etiopathogenesis, comorbidity in psoriasis — new facts. Russian Journal of Skin and Venereal Diseases. 2017;20(4):214–219 (In Russ.)] doi: 10.18821/1560-9588-2017-20-4-214-219</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Augustin M, Reich K, Glaeske G, Schaefer I, Radtke M. 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