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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">Perm Medical Journal</journal-id><journal-title-group><journal-title xml:lang="en">Perm Medical Journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Пермский медицинский журнал (сетевое издание "Perm medical journal")</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0136-1449</issn><issn publication-format="electronic">2687-1408</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">708404</article-id><article-id pub-id-type="doi">10.17816/pmj434109-118</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Methods of diagnostics and technologies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Методы диагностики и технологии</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">Predicting the effectiveness of systemic immunosuppressive therapy for psoriatic arthritis based on immunological data</article-title><trans-title-group xml:lang="ru"><trans-title>Прогнозирование эффективности системной иммуносупрессивной терапии псориатического артрита на основании иммунологических данных</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7933-3515</contrib-id><name-alternatives><name xml:lang="en"><surname>Arsenyeva</surname><given-names>Antonina A.</given-names></name><name xml:lang="ru"><surname>Арсеньева</surname><given-names>Антонина Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD in Medicine, Associate Professor, Head, Department of Dermatovenereology and Cosmetology, Institute of Professional Education</p></bio><bio xml:lang="ru"><p>кандидат медицинских наук, доцент, заведующий кафедрой дерматовенерологии и косметологии Института профессионального образования</p></bio><email>a.a.arseneva@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4221-4440</contrib-id><name-alternatives><name xml:lang="en"><surname>Ereshchenko</surname><given-names>Alyona A.</given-names></name><name xml:lang="ru"><surname>Ерещенко</surname><given-names>Алена Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD in Medicine, Head, Laboratory of Immunological Research Methods, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>кандидат медицинских наук, заведующий лабораторией иммунологических методов исследования НОПЦ генетических и лабораторных технологий</p></bio><email>a.a.ereschenko@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0941-9871</contrib-id><name-alternatives><name xml:lang="en"><surname>Migacheva</surname><given-names>Natalia B.</given-names></name><name xml:lang="ru"><surname>Мигачева</surname><given-names>Наталья Бегиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc in Medicine, Associate Professor, Head, Department of Pediatrics, Institute of Professional Education</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, доцент, заведующая кафедрой педиатрии Института профессионального образования</p></bio><email>n.b.migacheva@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5905-1895</contrib-id><contrib-id contrib-id-type="spin">6607-8990</contrib-id><name-alternatives><name xml:lang="en"><surname>Lyamin</surname><given-names>Artem V.</given-names></name><name xml:lang="ru"><surname>Лямин</surname><given-names>Артем Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc in Medicine, Professor, Department of Medical Microbiology and Immunology, Director, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, профессор, директор НОПЦ генетических и лабораторных технологий, профессор кафедры медицинской микробиологии и иммунологии</p></bio><email>a.v.lyamin@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2247-1754</contrib-id><contrib-id contrib-id-type="spin">6215-0400</contrib-id><name-alternatives><name xml:lang="en"><surname>Gribkova</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Грибкова</surname><given-names>Ольга Витальевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD in Biology, Researcher, Laboratory of Immunological Research Methods, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник лаборатории иммунологических методов исследования НОПЦ генетических и лабораторных технологий</p></bio><email>o.v.gribkova@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1532-0272</contrib-id><contrib-id contrib-id-type="spin">8018-3913</contrib-id><name-alternatives><name xml:lang="en"><surname>Ilyasov</surname><given-names>Pavel V.</given-names></name><name xml:lang="ru"><surname>Ильясов</surname><given-names>Павел Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD in Biology, Researcher, Laboratory for the Development and Evaluation of New <italic>in vitro</italic> Medical Devices, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>кандидат биологических наук, научный сотрудник лаборатории разработки и экспертизы новых медицинских изделий <italic>in vitro</italic> НОПЦ генетических и лабораторных технологий</p></bio><email>p.v.ilyasov@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2220-793X</contrib-id><name-alternatives><name xml:lang="en"><surname>Orlov</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Орлов</surname><given-names>Евгений Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc in Medicine, Professor, Department of Dermatovenereology and Cosmetology, Institute of Professional Education</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, профессор, профессор кафедры дерматовенерологии и косметологии Института профессионального образования</p></bio><email>e.v.orlov@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Samara State Medical University</institution></aff><aff><institution xml:lang="ru">Самарский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-09-20" publication-format="electronic"><day>20</day><month>09</month><year>2026</year></pub-date><volume>43</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>109</fpage><lpage>118</lpage><history><date date-type="received" iso-8601-date="2026-06-09"><day>09</day><month>06</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-07-07"><day>07</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-year>2026</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/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://permmedjournal.ru/PMJ/article/view/708404">https://permmedjournal.ru/PMJ/article/view/708404</self-uri><abstract xml:lang="en"><p><bold>Objective. </bold>To<bold> </bold>develop and evaluate a prognostic model based on clinical and laboratory data to predict the risk of failure of systemic immunosuppressive therapy in patients with psoriatic arthritis.</p> <p><bold>Materials and methods. </bold>A total of 51 patients with psoriatic arthritis who required systemic immunosuppressive therapy were followed up; they had not received it for the preceding 6 months. Prior to treatment, clinical and immunological parameters were assessed. The efficacy of therapy was determined by achievement of PASI 50 (a decrease in the PASI index by 50 % or more) and a decrease in clinical arthritis activity. A prognostic model was developed using binary logistic regression, and its discriminatory ability was tested using ROC analysis.</p> <p><bold>Results. </bold>Improvement was noted in 62.7 % of patients (32 out of 51 patients). Responders had significantly higher baseline PASI scores (median 29.0 vs. 18.0; <italic>p</italic> &lt; 0.001) and BSA scores (median 35.0 vs. 16.0; <italic>p</italic> &lt; 0.001). Baseline serum IL-12 differed significantly between the groups, with lower values observed in patients with improvement (8.98 pg/mL vs 9.59 pg/mL; <italic>p</italic> = 0.001). Baseline IL-17 and TNF-α levels showed no prognostic significance. The binary logistic regression prognostic model based on IL-12 was statistically significant (<italic>p</italic> &lt; 0.001). In ROC analysis, the area under the curve (AUC) was 0.771 (95 % CI: 0.629-0.912), indicating good discriminative ability of the model. At the selected threshold, the model sensitivity was 84.2 % and specificity 62.5 %.</p> <p><bold>Conclusions. </bold>Higher baseline PASI and BSA scores are associated with a better response to methotrexate, whereas IL-17 and TNF- α are not prognostic markers. Low baseline IL-12 levels represent a promising biomarker of treatment efficacy. The developed prognostic model can be used for personalized prediction of response to methotrexate in patients with psoriatic arthritis.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель. </bold>Разработка и оценка прогностической модели, основанной на клинико-лабораторных данных, для предсказания риска неэффективности системной иммуносупрессивной терапии у пациентов с псориатическим артритом.</p> <p><bold>Материалы и методы. </bold>Под наблюдением находился 51 пациент с псориатическим артритом, которым требовалась системная иммуносупрессивная терапия, при этом предшествующие 6 месяцев они ее не получали. До лечения были оценены клинические и иммунологические параметры. Эффективность терапии определяли по достижению PASI 50 (уменьшение индекса PASI на 50 % и более) и снижению клинической активности артрита. Прогностическая модель была разработана методом бинарной логистической регрессии, ее дискриминационная способность проверена с помощью ROC-анализа.</p> <p><bold>Результаты. </bold>Улучшение отмечено 62,7 % пациентов (32 из 51 пациентов). Пациенты, ответившие на терапию, имели достоверно более высокие исходные показатели PASI (медиана 29,0 против 18,0; <italic>p</italic> &lt; 0,001) и BSA (медиана 35,0 против 16,0; <italic>p</italic> &lt; 0,001). Исходный уровень сывороточного IL-12 значимо различался между группами: более низкие значения наблюдались у пациентов с улучшением (8,98 пг/мл против 9,59 пг/мл; <italic>p</italic> = 0,001). Исходные уровни IL-17 и ФНО-α не показали прогностической значимости. Построенная методом бинарной логистической регрессии прогностическая модель на основе IL-12 оказалась статистически значимой (<italic>p</italic> &lt; 0,001). При ROC-анализе площадь под кривой (AUC) составила 0,771 (95 % ДИ: 0,629–0,912), что указывает на хорошую дискриминационную способность модели. При выбранном пороговом значении чувствительность модели достигла 84,2 %, специфичность – 62,5 %.</p> <p><bold>Выводы. </bold>Более высокие исходные индексы PASI и BSA ассоциируются с лучшим ответом на метотрексат, тогда как IL-17 и ФНО-α не являются прогностическими маркерами. Исходно низкий уровень IL-12 представляет собой перспективный биомаркер эффективности терапии. Разработанная прогностическая модель может быть использована для персонализированного прогнозирования ответа на метотрексат у пациентов с псориатическим артритом.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Psoriatic arthritis</kwd><kwd>methotrexate</kwd><kwd>prognostic model</kwd><kwd>interleukin-12</kwd><kwd>biomarker</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Псориатический артрит</kwd><kwd>метотрексат</kwd><kwd>прогностическая модель</kwd><kwd>интерлейкин-12</kwd><kwd>биомаркер</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ogdie A., Weiss P. The epidemiology of psoriatic arthritis. Rheum Dis Clin North Am. 2015; 41 (4): 545–568. DOI: 10.1016/j.rdc.2015.07.001</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Villani A.P, Rouzaud M., Sevrain M., Barnetche T., Paul C., Richard M.A., Beylot-Barry M., Misery L., Joly P., Le Maitre M., Aractingi S., Aubin F., Cantagrel A., Ortonne J.P., Jullien D. Prevalence of undiagnosed psoriatic arthritis among psoriasis patients: Systematic review and meta-analysis. J Am Acad Dermatol. 2015; 73 (2): 242–8. DOI: 10.1016/j.jaad.2015.05.001</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Alinaghi F., Calov M., Kristensen L.E., Gladman D.D., Coates L.C., Jullien D., Gottlieb A.B., Gisondi P., Wu J.J., Thyssen J.P., Egeberg A. Prevalence of psoriatic arthritis in patients with psoriasis: A systematic review and meta-analysis of observational and clinical studies. J Am Acad Dermatol. 2019; 80 (1): 251–265.e19. DOI: 10.1016/j.jaad.2018.06.027</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Robinson W.H., Lindstrom T.M., Cheung R.K., Sokolove J. Mechanistic biomarkers for clinical decision making in rheumatic diseases. Nat. Rev. Rheumatol. 2013; 9: 267–276. DOI: 10.1038/nrrheum.2013.14</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Brown P.M., Pratt A.G., Isaacs J.D. Mechanism of action of methotrexate in rheumatoid arthritis, and the search for biomarkers. Nat Rev Rheumatol. 2016; 12 (12): 731–742. DOI: 10.1038/nrrheum.2016.175</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Chan E.S., Cronstein B.N. Methotrexate-how does it really work? Nat Rev Rheumatol. 2010; 6 (3): 175–8. DOI: 10.1038/nrrheum.2010.5</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Cronstein B.N., Sitkovsky M. Adenosine and adenosine receptors in the pathogenesis and treatment of rheumatic diseases. Nat Rev Rheumatol. 2017; 13 (1): 41–51. DOI: 10.1038/nrrheum.2016.178</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Bossennec M., Rodriguez C., Hubert M., Di-Roio A., Machon C., Guitton J., Battiston-Montagne P., Couturier M., Marotte H., Caux C., Coury F., Ménétrier-Caux C. Methotrexate restores CD73 expression on Th1.17 in rheumatoid arthritis and psoriatic arthritis patients and may contribute to its anti-inflammatory effect through ado production. J Clin Med. 2019; 8 (11): 1859. DOI: 10.3390/jcm8111859</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Thomas S., Fisher K.H., Snowden J.A., Danson S.J., Brown S., Zeidler M.P. Methotrexate is a JAK/STAT pathway inhibitor. PLoSONE. 2015; 10 (7): e0130078. DOI: 10.1371/journal.pone.0130078</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Wong P.C., Leung Y.Y., Li E.K., Tam L.S. Measuring disease activity in psoriatic arthritis. Int J Rheumatol. 2012; 2012: 839425. DOI: 10.1155/2012/839425</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Lupardus P.J., Garcia K.C. The structure of interleukin-23 reveals the molecular basis of p40 subunit sharing with interleukin-12. J Mol Biol. 2008; 382 (4): 931–941. DOI: 10.1016/j.jmb.2008.07.051</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Ritchlin C., Rahman P., Kavanaugh A., McInnes I.B., Puig L., Li S., Wang Y., Shen Y.K., Doyle M.K., Mendelsohn A.M., Gottlieb A.B. Efficacy and safety of the anti-IL-12/23 p40 monoclonal antibody, ustekinumab, in patients with active psoriatic arthritis despite conventional non-biological and biological anti-tumour necrosis factor therapy: 6-month and 1-year results of the phase 3, multicentre, double-blind, placebo-controlled, randomised PSUMMIT 2 trial. Ann Rheum Dis. 2014; 73 (6): 990–9. DOI: 10.1136/annrheumdis-2013-204655</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Silvagni E., Bortoluzzi A., Ciancio G., Govoni M. Biological and synthetic target DMARDs in psoriatic arthritis. Pharmacol Res. 2019; 149: 104473. DOI: 10.1016/j.phrs.2019.104473</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Leung Y.Y., Korotaeva T.V., Candia L., Pedersen S.J., Bautista Molano W., Ruderman E.M., Bisoendial R., Perez-Alamino R., Olsder W., Möller B., Grazio S., Gudu T., Mody G.M., Pineda C., Raffayova H., Rohekar S., Goldenstein-Schainberg C., Gutierrez Urena S.R., Casasola Vargas J.C., Meghnathi B., Prasad R., Richette P., Miranda J.R.S., Malliotis N., Lindqvist U., Simon D., Ezeonyeji A., Soriano E.R., FitzGerald O. Management of peripheral arthritis in patients with psoriatic arthritis: An updated literature review informing the 2021 GRAPPA treatment recommendations. J Rheumatol. 2023; 50 (1): 119–130. DOI: 10.3899/jrheum.220315</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Magee C., Jethwa H., FitzGerald O.M., Jadon D.R. Biomarkers predictive of treatment response in psoriasis and psoriatic arthritis: a systematic review. Ther Adv Musculoskelet Dis. 2021; 13: 1759720X211014010. DOI: 10.1177/1759720X211014010</mixed-citation></ref></ref-list></back></article>
