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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">pulmo</journal-id><journal-title-group><journal-title xml:lang="ru">Пульмонология</journal-title><trans-title-group xml:lang="en"><trans-title>PULMONOLOGIYA</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-0189</issn><issn pub-type="epub">2541-9617</issn><publisher><publisher-name>Scientific and Practical Journal “PULMONOLOGIYA” LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18093/0869-0189-2024-34-6-857-868</article-id><article-id custom-type="elpub" pub-id-type="custom">pulmo-4591</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Оценка действия CFTR-модуляторов при наличии в генотипе пациентов с муковисцидозом варианта сплайсинга 2789+5G&gt;A</article-title><trans-title-group xml:lang="en"><trans-title>Therapeutic effect of CFTR modulators in cystic fibrosis patients with the 2789+5G&gt;A splice variant in the genotype</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2195-3025</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краснова</surname><given-names>М. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasnova</surname><given-names>M. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Краснова Мария Геннадьевна – аспирант, младший научный сотрудник лаборатории генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Maria G. Krasnova - Postgraduate Student, Junior Researcher, Laboratory of Stem Cell Genetics.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">krasnova.m.g.0605@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5035-6396</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ефремова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Efremova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ефремова Анна Сергеевна – к. б. н., ведущий научный сотрудник лаборатории генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Anna S. Efremova - Candidate of Biology, Leading research scientist of Stem cell genetics laboratory.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">anna.efremova.83@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8814-5532</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельяновская</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Melyanovskaya</surname><given-names>Yu. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мельяновская Юлия Леонидовна – к. м. н., старший научный сотрудник научно-клинического отдела муковисцидоза.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Yuliya L. Melyanovskaya - Candidate of Medicine, Senior Researcher, Scientific and Clinical Department of Cystic Fibrosis.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">melcat@mail.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/0000-0001-9642-0947</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Красовский</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasovskiy</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Красовский Станислав Александрович – к. м. н., старший научный сотрудник лаборатории муковисцидоза НИИП Федерального медико-биологического агентства; ведущий научный сотрудник научно-клинического отдела муковисцидоза Медико-генетический научный центр имени академика Н.П. Бочкова; врач-пульмонолог отделения респираторной медицины ГКБ имени С.С. Юдина Департамента здравоохранения города Москвы.</p><p>115522, Москва, ул. Москворечье, 1; 115682, Москва, Ореховый бульвар, 28; 115446, Москва, Коломенский проезд, 4; тел: (926) 273-76-34</p></bio><bio xml:lang="en"><p>Stanislav A. Krasovskiy - Candidate of Medicine, Senior Researcher, Laboratory of Cystic Fibrosis, FSBI “Pulmonology Scientific Research Institute” under Federal Medical and Biological Agency RF; Leading Researcher, Scientific and Clinical Department of Cystic Fibrosis, Research Centre for Medical Genetics”; Pulmonologist, Department of Respiratory Medicine, MSBHI “Moscow City Hospital named after S.S. Yudin”, Moscow Healthcare Department.</p><p>Ul. Moskvorechye 1, Moscow, 115522; Orekhovyy bul’var 28, Moscow, 115682; Kolomenskiy pr. 4, Moscow, 115446; tel.: (926) 273-76-34</p></bio><email xlink:type="simple">sa_krasovsky@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2066-0009</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мокроусова</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Mokrousova</surname><given-names>D. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мокроусова Диана Олеговна - младший научный сотрудник лаборатории генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Diana O. Mokrousova - Junior Researcher, Laboratory of Stem Cell Genetics.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">diana-mok2000@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/0000-0003-0481-256X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бухарова</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bukharova</surname><given-names>T. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бухарова Татьяна Борисовна – к. б. н., ведущий научный сотрудник лаборатории генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Tatiana B. Bukharova - Candidate of Biology, Leading Researcher, Stem Cell Genetics Laboratory.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">bukharova-rmt@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Булатенко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bulatenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Булатенко Наталья Вадимовна – младший научный сотрудник лаборатории генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Natalya V. Bulatenko - Junior Researcher, Laboratory of Stem Cell Genetics.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">bnv695@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6395-0407</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондратьева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kondratyeva</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кондратьева Елена Ивановна – д. м. н., профессор, заведующая научноклиническим отделом муковисцидоза, заведующая кафедрой генетики болезней дыхательной системы Института высшего и дополнительного профессионального образования.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (499) 324-15-01</p></bio><bio xml:lang="en"><p>Elena I. Kondratyeva - Doctor of Medicine, Professor, Head of the Scientific and Clinical Department of Cystic Fibrosis, Head of the Department of Genetics of Respiratory System Diseases, Institute of Higher and Additional Professional Education.</p><p>Ul. Moskvorechye 1, Moscow, 115522; (499) 324-15-01</p></bio><email xlink:type="simple">elenafpk@mail.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/0000-0003-2438-1605</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гольдштейн</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Goldshtein</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гольдштейн Дмитрий Вадимович – д. б. н., профессор, заведующий лабораторией генетики стволовых клеток.</p><p>115522, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Dmitry V. Goldshtein - Doctor of Biology Professor, Head of the Stem Cell Genetics Laboratory.</p><p>Ul. Moskvorechye 1, Moscow, 115522; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">dvgoldrm7@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Медико-генетический научный центр имени академика Н.П. Бочкова» Министерства науки и высшего образования Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “Research Centre for Medical Genetics”, Ministry of Science and Higher Education of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Медико-генетический научный центр имени академика Н.П. Бочкова» Министерства науки и высшего образования Российской Федерации; Федеральное государственное бюджетное учреждение «Научно-исследовательский институт пульмонологии» Федерального медико-биологического агентства России; Государственное бюджетное учреждение здравоохранения города Москвы «Городская клиническая больница имени С.С. Юдина Департамента здравоохранения города Москвы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “Research Centre for Medical Genetics”, Ministry of Science and Higher Education of the Russian Federation; Federal State Budgetary Institution “Pulmonology Scientific Research Institute” under Federal Medical and Biological Agency of Russian Federation; Moscow State Budgetary Healthcare Institution “Moscow City Hospital named after S.S. Yudin”, Moscow Healthcare Department</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>12</month><year>2024</year></pub-date><volume>34</volume><issue>6</issue><fpage>857</fpage><lpage>868</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Краснова М.Г., Ефремова А.С., Мельяновская Ю.Л., Красовский С.А., Мокроусова Д.О., Бухарова Т.Б., Булатенко Н.В., Кондратьева Е.И., Гольдштейн Д.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Краснова М.Г., Ефремова А.С., Мельяновская Ю.Л., Красовский С.А., Мокроусова Д.О., Бухарова Т.Б., Булатенко Н.В., Кондратьева Е.И., Гольдштейн Д.В.</copyright-holder><copyright-holder xml:lang="en">Krasnova M.G., Efremova A.S., Melyanovskaya Y.L., Krasovskiy S.A., Mokrousova D.O., Bukharova T.B., Bulatenko N.V., Kondratyeva E.I., Goldshtein D.V.</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://journal.pulmonology.ru/pulm/article/view/4591">https://journal.pulmonology.ru/pulm/article/view/4591</self-uri><abstract><p>Около 13 % всех вариантов, вызывающих проявление муковисцидоза (МВ), являются вариантами сплайсинга в гене CFTR, однако на данный момент такие варианты изучены недостаточно.</p><p>Целью исследования явилось изучение варианта сплайсинга 2789+5G&gt;A на фенотипические проявления МВ и эффективность таргетной терапии на модели кишечных органоидов (КО) у пациентов с генотипами 2789+5G&gt;A/L732X и 2789+5G&gt;A/CFTRdele2,3.</p><sec><title>Материалы и методы</title><p>Материалы и методы. Представлены клинические особенности течения МВ у 2 пациентов-носителей варианта 2789+5G&gt;A в гетерозиготном состоянии с генетическими вариантами гена CFTR I и VII классов. Использованы данные истории болезни, метод определения разницы кишечных потенциалов (ОРКП), метод КО, форсколиновый тест.</p></sec><sec><title>Результаты</title><p>Результаты. Определена клиническая картина: течение заболевания средней тяжести, сохранность поджелудочной железы. Также методом ОРКП показана сохранность функции хлорного канала. По данным исследования культуры КО, полученной из ткани кишечника, показана умеренная остаточная функциональная активность хлорного канала. Кроме того, установлена чувствительность варианта 2789+5G&gt;A к действию всех протестированных CFTR-модуляторов.</p></sec><sec><title>Заключение</title><p>Заключение. Установлено, что вариант сплайсинга 2789+5G&gt;A характеризуется умеренной остаточной функциональной активностью CFTR-канала, чувствителен ко всем таргетным препаратам, однако самым эффективным CFTR-модулятором при данном варианте является тезакафтор.</p></sec></abstract><trans-abstract xml:lang="en"><p>About 13% of all variants causing cystic fibrosis are splice variants of the CFTR gene; at the moment, such variants are not well studied.</p><p>The aim was to investigate the effect of the splicing variant 2789+5G&gt;A on the phenotypic manifestations of cystic fibrosis and the effectiveness of targeted therapy in an intestinal organoids model in the patients with genotypes 2789+5G&gt;A/L732X and 2789+5G&gt;A/CFTRdele2,3.</p><sec><title>Methods</title><p>Methods. The medical history data, intestinal current measurement (ICM), and forskolin-induced swelling assay in the intestinal organoids were used.</p></sec><sec><title>Results</title><p>Results. The clinical features of the course of CF in 2 patients, carriers of the 2789+5G&gt;A variant in a heterozygous state with genetic variants of the CFTR gene of classes I and VII, are presented. Clinical picture: the disease is of moderate severity; the pancreas is sufficient. The ICM method demonstrated the preservation of the chloride channel function. Assays on the cultured organoids obtained from the intestinal tissue showed moderate residual functional activity of the chloride channels. In addition, the 2789+5G&gt;A variant is sensitive to all tested CFTR modulators.</p></sec><sec><title>Conclusions</title><p>Conclusions. The splicing variant 2789+5G&gt;A is characterized by moderate residual functional activity of the CFTR channel and is sensitive to all targeted treatments. However, the most effective CFTR modulator for this genetic variant is tezacaftor.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>CFTR</kwd><kwd>муковисцидоз</kwd><kwd>определение разности кишечных потенциалов</kwd><kwd>кишечные органоиды</kwd><kwd>форсколиновый тест</kwd><kwd>таргетная терапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>CFTR</kwd><kwd>cystic fibrosis</kwd><kwd>intestinal current measurement</kwd><kwd>intestinal organoids</kwd><kwd>forskolin-induced swelling</kwd><kwd>targeted therapy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Федерального государственного бюджетного научного учреждения «Медико-генетический научный центр имени академика Н.П. Бочкова» Министерства науки и высшего образования Российской Федерации</funding-statement><funding-statement xml:lang="en">This research was funded by the state assignment of Federal State Budgetary Scientific Institution “Research Centre for Medical Genetics” of the Ministry of Science and Higher Education of the Russian Federation</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Clinical and functional translation of CFTR. Available at: https://cftr2.org/ [Accessed: September 25, 2024].</mixed-citation><mixed-citation xml:lang="en">Clinical and functional translation of CFTR. Available at: https://cftr2.org/ [Accessed: September 25, 2024].</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Persico I., Feresin A., Faleschini M. et al. 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