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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">10.18093/0869-0189-2021-31-2-167-177</article-id><article-id custom-type="elpub" pub-id-type="custom">pulmo-2325</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>Использование функциональных тестов для оценки остаточной активности канала CFTR и индивидуального подбора эффективных CFTR-модуляторов для лечения пациентов с муковисцидозом с «мягким» и «тяжелым» генетическими вариантами</article-title><trans-title-group xml:lang="en"><trans-title>Functional tests for assessment of residual CFTR channel activity and personalized selection of efficacious CFTR-modulators for cystic fibrosis patients with ‘mild’ and ‘severe’ genetic variants</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5356-9415</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Амелина</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Amelina</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Амелина Елена Львовна – к. м. н., заведующая лабораторией муковисцидоза; доцент кафедры генетики болезней дыхательной системы.</p><p>115478, Москва, ул. Москворечье, 1; 115682, Москва, Ореховый бульвар, 28; тел.: (926) 205-03-91</p></bio><bio xml:lang="en"><p>Elena L. Amelina, Candidate of Medicine, Head of the Laboratory of Cystic Fibrosis; Associate Professor, Department of Genetics of Respiratory System Diseases.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; Orekhovyy bul’var 28, Moscow, 115682, Russia; tel.: (926) 205-03-91</p></bio><email xlink:type="simple">eamelina@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/0000-0001-5035-6396</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., старший научный сотрудник лаборатории генетики стволовых клеток.</p><p>115478, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Anna S. Efremova, Candidate of Biology, Senior Researcher, Laboratory of Stem Cell Genetics.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">anna.efremova.83@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8814-5532</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 – научный сотрудник научно-клинического отдела муковисцидоза.</p><p>115478, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Yuliya L. Melyanovskaya, Researcher, Scientific and Clinical Department of Cystic Fibrosis.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">melcat@mail.ru</email><xref ref-type="aff" rid="aff-2"/></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>115478, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Natal’ya V. Bulatenko, Junior Researcher, Laboratory of Stem Cell Genetics.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">bnv695@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0481-256X</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>115478, Москва, ул. Москворечье, 1; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Tat’yana B. Bukharova, Candidate of Biology, Leading Researcher, Laboratory of Stem Cell Genetics.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">bukharova-rmt@yandex.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/0000-0003-0503-6371</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каширская</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kashirskaya</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каширская Наталия Юрьевна – д. м. н., профессор, главный научный сотрудник лаборатории генетической эпидемиологии.</p><p>115478, Москва, ул. Москворечье, 1;  тел.: (499) 320-60-90</p></bio><bio xml:lang="en"><p>Nataliya Yu. Kashirskaya, Doctor of Medicine, Professor, Chief Researcher, Laboratory of Genetic Epidemiology.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (499) 320-60-90</p></bio><email xlink:type="simple">kashirskayanj@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/0000-0001-9642-0947</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; старший научный сотрудник научно-клинического отдела муковисцидоза; врач-пульмонолог отделения муковисцидоза.</p><p>115478, Москва, ул. Москворечье, 1; 115682, Москва, Ореховый бульвар, 28; 105077, Москва, ул. 11-я Парковая, 32; тел.: (926) 273-76-34</p></bio><bio xml:lang="en"><p>Stanislav A. Krasovskiy, Candidate of Medicine, Senior Researcher, Cystic Fibrosis Laboratory; Senior Researcher, Scientific and Clinical Department of Cystic Fibrosis; pulmonologist.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; Orekhovyy bul’var 28, Moscow, 115682, Russia; ul. Odinnadtsataya Parkovaya 32, Moscow, 105077, Russia;tel.: (926) 273-76-34</p></bio><email xlink:type="simple">sa_krasovsky@mail.ru</email><xref ref-type="aff" rid="aff-3"/></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>115478, Москва, ул. Москворечье, 1»; тел.: (495) 324-20-24</p></bio><bio xml:lang="en"><p>Dmitriy V. Goldshtein, Doctor of Biology, Professor, Head of the Laboratory of Stem Cell Genetics.</p><p>ul. Moskvorech’e 1, Moscow, 1115478, Russia; tel.: (495) 324-20-24</p></bio><email xlink:type="simple">dvgoldrm7@gmail.com</email><xref ref-type="aff" rid="aff-2"/></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»; Федеральное государственное бюджетное учреждение «Научно-исследовательский институт пульмонологии» Федерального медико-биологического&#13;
агентства</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “Research Center for Medical Genetics”; Federal Pulmonology Research Institute, Federal Medical and Biological Agency of Russia</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»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “Research Center for Medical Genetics”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Медико-генетический научный центр имени академика Н.П.Бочкова»; Федеральное государственное бюджетное учреждение «Научно-исследовательский институт пульмонологии» Федерального медико-биологического агентства; Государственное бюджетное учреждение здравоохранения города Москвы «Городская клиническая больница имени Д.Д.Плетнева Департамента здравоохранения города Москвы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Budgetary Scientific Institution “Research Center for Medical Genetics”; Federal Pulmonology Research Institute, Federal Medical and Biological Agency of Russia; D.D.Pletnev City Teaching Hospital, Moscow Healthcare Department</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>04</month><year>2021</year></pub-date><volume>31</volume><issue>2</issue><fpage>167</fpage><lpage>177</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Амелина Е.Л., Ефремова А.С., Мельяновская Ю.Л., Булатенко Н.В., Бухарова Т.Б., Каширская Н.Ю., Красовский С.А., Гольдштейн Д.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Амелина Е.Л., Ефремова А.С., Мельяновская Ю.Л., Булатенко Н.В., Бухарова Т.Б., Каширская Н.Ю., Красовский С.А., Гольдштейн Д.В.</copyright-holder><copyright-holder xml:lang="en">Amelina E.L., Efremova A.S., Melyanovskaya Y.L., Bulatenko N.V., Bukharova T.B., Kashirskaya N.Y., Krasovskiy S.A., 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/2325">https://journal.pulmonology.ru/pulm/article/view/2325</self-uri><abstract><p>Новые функциональные методы исследования активности канала CFTR – определение разности кишечных потенциалов (ОРКП) и форсколиновый тест на кишечных органоидах, получаемых из ректальных биоптатов больных муковисцидозом (МВ), приняты в ведущих лабораториях мира для научной и клинической работы.</p><p>Целью исследования явилась оценка возможности применения новейших функциональных методик у взрослых больных МВ – носителей генетических вариантов гена CFTR – N1303K и R334W.</p><sec><title>Материалы и методы</title><p>Материалы и методы. Получены ректальные биоптаты у пациенток с МВ (n = 2) в возрасте 36 и 27 лет с генотипом CFTR R334W/F508del и N1303K/3821delT соответственно. Проведены ОРКП и форсколиновый тест на кишечных органоидах; полученные результаты сопоставлены с клиническими данными.</p></sec><sec><title>Результаты</title><p>Результаты. По результатам ОРКП подтверждено, что генетический вариант R334W является «мягким», с сохранением высокой остаточной функциональной активности канала CFTR, тогда как генетический вариант N1303K является «тяжелым» и приводит к утрате рабочего белка CFTR, что соответствует представленной клинической картине. Результаты форсколинового теста свидетельствуют о том, что вариант R334W хорошо поддается коррекции CFTR-модуляторами. Потенциатор VX-770 и корректор VX-809 оказывают слабое действие на стимуляцию форсколином органоидов при генетическом варианте N1303K.</p></sec><sec><title>Заключение</title><p>Заключение. Использование метода ОРКП и форсколинового теста на кишечных органоидах позволяет количественно оценить работу белка CFTR и in vitro определить эффективность таргетной терапии у пациентов с МВ.</p></sec></abstract><trans-abstract xml:lang="en"><p>Intestinal current measurement (ICM) and forskolin-induced swelling (FIS) assay in human intestinal organoids from rectal biopsies of cystic fibrosis (CF) patients are the new functional tests for assessment of CFTR channel activity that are widely used in the leading laboratories worldwide for scientific and clinical studies.</p><p>The aim of the study was to assess the use of the new functional tests in adult CF patients with identified N1303K and R334W CFTR gene variants.</p><sec><title>Methods</title><p>Methods. Rectal suction biopsies were obtained from the two CF patients aged 36 and 27 years with N1303K/3821delT and R334W/F508del CFTR mutations, respectively. Results of the ICM and FIS assay in intestinal organoids were compared to the clinical data.</p></sec><sec><title>Results</title><p>Results. ICM has demonstrated that R334W is a ‘mild’ genetic variant with high residual CFTR channel activity. At the same time, N1303K is a ‘severe’ genetic variant and leads to a severe loss of CFTR channel function. These findings correlate with the clinical data. CFTR modulators compensate for the reduced activity of the R334W CFTR variant, as shown by the FIS assay. But there was a limited response of the forskolin-stimulated organoids to VX-770 potentiator and VX-809 corrector in the cells with N1303K genetic variant.</p></sec><sec><title>Conclusion</title><p>Conclusion. ICM and FIS assay in human intestinal organoids are reliable methods for quantification of CFTR channel activity. They can also predict the efficacy of the targeted therapy in CF patients in vivo.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>муковисцидоз</kwd><kwd>генетические варианты CFTR</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>сystic fibrosis</kwd><kwd>genetic variants CFTR</kwd><kwd>intestinal current measurements</kwd><kwd>intestinal organoids</kwd><kwd>forskolin-induced swelling assay</kwd><kwd>targeted therapy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена на средства государственного задания для Федерального государственного бюджетного научного учреждения «Медико-генетический научный центр имени академика Н.П.Бочкова» и при финансовой поддержке благотворительного фонда «Острова</funding-statement><funding-statement xml:lang="en">This study was supported by the state assignment of Federal State Budgetary Scientific Institution «Research Center for Medical Genetics», Russian Academy of Science and received financial support from the “Ostrova” foundation</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">Lopes-Pacheco M. 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