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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2024.10.55-62</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-2562</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Разработка методики количественной оценки молекул TREC и KREC  в цельной крови и сухих пятнах крови методом цифровой ПЦР</article-title><trans-title-group xml:lang="en"><trans-title>Development of a method for quantitative assessment of TREC and KREC molecules  in whole blood and dried blood spots using digital PCR</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слепцов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sleptсov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск,  ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</p></bio><email xlink:type="simple">alexei.sleptcov@medgenetics.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>Орлов</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlov</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск,  ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Огородников</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ogorodnikov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск,  ул. Набережная реки Ушайки, д. 10</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назаренко</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nazarenko</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>634050, г. Томск,  ул. Набережная реки Ушайки, д. 10</p><p>634050, г. Томск,  Московский тракт, д. 2</p></bio><bio xml:lang="en"><p>10, Naberejnaya Ushaiki, Tomsk, 634050</p><p>2, Moskovsky trakt, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Томский национальный исследовательский медицинский центр Российской академии наук, &#13;
Научно-исследовательский институт медицинской генетики</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk National Research Medical Center of the Russian Academy of Sciences, Research Institute of Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБНУ Томский национальный исследовательский медицинский центр Российской академии наук, &#13;
Научно-исследовательский институт медицинской генетики; ФГБОУ ВО Сибирский государственный медицинский университет Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk National Research Medical Center of the Russian Academy of Sciences, Research Institute of Medical Genetics; Siberian State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>07</day><month>12</month><year>2024</year></pub-date><volume>23</volume><issue>10</issue><fpage>55</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Слепцов А.А., Орлов Д.С., Огородников С.А., Назаренко М.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Слепцов А.А., Орлов Д.С., Огородников С.А., Назаренко М.С.</copyright-holder><copyright-holder xml:lang="en">Sleptсov A.A., Orlov D.S., Ogorodnikov S.A., Nazarenko M.S.</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://www.medgen-journal.ru/jour/article/view/2562">https://www.medgen-journal.ru/jour/article/view/2562</self-uri><abstract><p>Существует целый ряд патологических состояний, сопровождаемых сниженными показателями Т- и В-лимфоцитов. Оценка этих показателей является жизненно важной для новорожденных, так как без своевременной диагностики и терапии нарушение иммунитета может привести к инфекционным заболеваниям с тяжелым течением, инвалидизации и высокой летальности. Цель исследования заключалась в разработке высокочувствительного и прецизионного метода для подсчета количества наивных Т- и В-лимфоцитов на основе определения эксцизионных кольцевых молекул ДНК TREC и KREC методом цифровой ПЦР. В результате был разработан специфический набор праймеров и проб, позволяющий с высокой точностью определять количество молекул TREC и KREC, а также проводить подсчет количества ядросодержащих клеток. Предложенная методика демонстрирует высокую диагностическую специфичность и чувствительность. Методика может быть применена как скрининговая диагностика иммунодефицитных состояний новорожденных, так и для оценки иммунного статуса у взрослого населения при различных иммунопатологических состояниях.</p></abstract><trans-abstract xml:lang="en"><p>A reduction in the indices of T- and B-lymphocytes is a common feature of a number of pathological conditions. The assessment of these indices is of paramount importance in the context of newborns, as the absence of timely diagnosis and treatment can result in the development of severe infectious diseases, disability, and high mortality. The objective of this study was to develop a highly sensitive and precise method for enumerating naïve T- and B-lymphocytes based on the quantification of excision circular DNA molecules TREC and KREC through digital polymerase chain reaction. Consequently, a specific set of primers and probes was developed, enabling highly accurate determination of the number of TREC and KREC molecules and counting of the number of nucleated cells. The proposed method exhibits high diagnostic specificity and sensitivity, rendering it suitable for use in both screening diagnostics of immunodeficiency states in newborns and for assessing the immune status in adults with various immunopathological conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>неонатальный скрининг</kwd><kwd>цифровая ПЦР</kwd><kwd>иммунодефицитные заболевания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neonatal screenings</kwd><kwd>digital PCR</kwd><kwd>immunodeficiency diseases</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках поисковых научных исследований 123041700028-8 от 17.04.2023 г.</funding-statement><funding-statement xml:lang="en">The study was carried out according to scientific research 123041700028-8 dated 04/17/2023.</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">van Zelm M.C., Szczepanski T., van der Burg M. et al. 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