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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">biopreparat</journal-id><journal-title-group><journal-title xml:lang="ru">БИОпрепараты. Профилактика, диагностика, лечение</journal-title><trans-title-group xml:lang="en"><trans-title>Biological Products. Prevention, Diagnosis, Treatment</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-996X</issn><issn pub-type="epub">2619-1156</issn><publisher><publisher-name>Scientific Centre for Expert Evaluation of Medicinal Products</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/2221-996X-2026-26-3-276-286</article-id><article-id custom-type="elpub" pub-id-type="custom">biopreparat-802</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>ТЕМА НОМЕРА: мРНК-ТЕХНОЛОГИИ В БИОМЕДИЦИНЕ: СОВРЕМЕННЫЕ ДОСТИЖЕНИЯ И РЕГУЛЯТОРНАЯ ПРАКТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ISSUE TOPIC: mRNA TECHNOLOGIES IN BIOMEDICINE: CURRENT ADVANCES AND REGULATORY PRACTICE</subject></subj-group></article-categories><title-group><article-title>Введение хорькам мРНК-вакцины mRNA-H5 методом струйной инжекции формирует защитный иммунитет в отношении вируса гриппа подтипа H5N1</article-title><trans-title-group xml:lang="en"><trans-title>Administration of the mRNA-H5 vaccine to ferrets via jet injection provides protective immunity against the H5N1 influenza virus</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-6524-3222</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Литвинова</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Litvinova</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Литвинова Виктория Руслановна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Victoria R. Litvinova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">viktoriya_litvinova_1999@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/0000-0001-6952-6412</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гудымо</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gudymo</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гудымо Андрей Сергеевич</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Andrei S. Gudymo</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">gudymo_as@vector.nsc.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/0009-0009-4563-2099</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковлев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovlev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковлев Владимир Андреевич</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Vladimir A. Yakovlev</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">yakovlev_va@vector.nsc.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/0000-0002-0768-1561</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боргоякова</surname><given-names>М. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Borgoyakova</surname><given-names>M. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Боргоякова Мария Борисовна, канд. биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Mariya B. Borgoyakova, Cand. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">borgoyakova_mb@vector.nsc.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/0000-0002-1733-9524</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Старостина</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Starostina</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Старостина Екатерина Владимировна, канд. биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Ekaterina V. Starostina, Cand. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">starostina_ev@vector.nsc.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/0009-0001-5203-2130</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковлева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovleva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яковлева Елена Витальевна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Elena V. Yakovleva</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">tigeeva_ev@vector.nsc.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/0009-0002-3191-1360</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>К. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>K. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Ксения Ивановна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Ksenia I. Ivanova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">ivanova_ki@vector.nsc.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/0009-0008-4170-0552</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Перфильева</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Perfilyeva</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Перфильева Ольга Николаевна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Olga N. Perfilyeva</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">perfileva_on@vector.nsc.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/0009-0009-2309-0137</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Макарова</surname><given-names>К. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Makarova</surname><given-names>K. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Макарова Кристина Петровна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Kristina P. Makarova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">makarova_kp@vector.nsc.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/0009-0008-0706-8119</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вахитов</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Vahitov</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вахитов Данил Игоревич</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Danil I. Vahitov</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">vahitov_di@vector.nsc.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/0000-0003-2655-4629</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данильченко</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilchenko</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данильченко Наталья Викторовна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Natalia V. Danilchenko</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">danilchenko_nv@vector.nsc.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>Егорова</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Egorova</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Егорова Марина Леонидовна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Marina L. Egorova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">egorova_ml@vector.nsc.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/0009-0001-1548-5608</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильцова</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiltsova</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васильцова Наталья Николаевна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Natalya N. Vasiltsova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">vasiltsova_nn@vector.nsc.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/0000-0003-0664-3587</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шарабрин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharabrin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шарабрин Сергей Валерьевич, канд. биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Sergei V. Sharabrin, Cand. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">sharabrin_sv@vector.nsc.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/0000-0002-1684-9071</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рудомётова</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Rudometova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рудомётова Надежда Борисовна, канд. биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Nadezhda B. Rudometova, Cand. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">andreeva_nb@vector.nsc.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/0000-0003-4889-6865</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кисаков</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kisakov</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кисаков Денис Николаевич</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Denis N. Kisakov</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">kisakov_dn@vector.nsc.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/0000-0001-7214-1855</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кисакова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kisakova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кисакова Любовь Александровна</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Lyubov A. Kisakova</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">orlova_la@vector.nsc.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/0000-0002-2354-7688</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильичёва</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyicheva</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильичёва Татьяна Николаевна, д-р биол. наук, доц.</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Tatiana N. Ilyicheva, Dr. Sci. (Biol.), Assoc. Prof.</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">ilicheva_tn@vector.nsc.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/0000-0002-1339-6732</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марченко</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Marchenko</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марченко Василий Юрьевич, д-р биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Vasiliy Yu. Marchenko, Dr. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">marchenko_vyu@vector.nsc.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/0000-0003-4365-8809</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпенко</surname><given-names>Л. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpenko</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карпенко Лариса Ивановна, д-р биол. наук, доц.</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Larisa I. Karpenko, Dr. Sci. (Biol.), Assoc. Prof.</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">karpenko@vector.nsc.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/0000-0001-5356-0843</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильичёв</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyichev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильичёв Александр Алексеевич, д-р биол. наук, проф.</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Alexander A. Ilyichev, Dr. Sci. (Biol.), Prof.</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">ilyichev@vector.nsc.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/0000-0003-2808-4309</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рудомётов</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Rudometov</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рудомётов Андрей Павлович, канд. биол. наук</p><p>р.п. Кольцово, Новосибирская область, 630559</p></bio><bio xml:lang="en"><p>Andrey P. Rudometov, Cand. Sci. (Biol.)</p><p>Koltsovo, Novosibirsk Region, 630559</p></bio><email xlink:type="simple">rudometov_ap@vector.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное бюджетное учреждение науки «Государственный научный центр вирусологии и биотехнологии «Вектор» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center of Virology and Biotechnology “Vector”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2026</year></pub-date><volume>26</volume><issue>3</issue><fpage>276</fpage><lpage>286</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Литвинова В.Р., Гудымо А.С., Яковлев В.А., Боргоякова М.Б., Старостина Е.В., Яковлева Е.В., Иванова К.И., Перфильева О.Н., Макарова К.П., Вахитов Д.И., Данильченко Н.В., Егорова М.Л., Васильцова Н.Н., Шарабрин С.В., Рудомётова Н.Б., Кисаков Д.Н., Кисакова Л.А., Ильичёва Т.Н., Марченко В.Ю., Карпенко Л.И., Ильичёв А.А., Рудомётов А.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Литвинова В.Р., Гудымо А.С., Яковлев В.А., Боргоякова М.Б., Старостина Е.В., Яковлева Е.В., Иванова К.И., Перфильева О.Н., Макарова К.П., Вахитов Д.И., Данильченко Н.В., Егорова М.Л., Васильцова Н.Н., Шарабрин С.В., Рудомётова Н.Б., Кисаков Д.Н., Кисакова Л.А., Ильичёва Т.Н., Марченко В.Ю., Карпенко Л.И., Ильичёв А.А., Рудомётов А.П.</copyright-holder><copyright-holder xml:lang="en">Litvinova V.R., Gudymo A.S., Yakovlev V.A., Borgoyakova M.B., Starostina E.V., Yakovleva E.V., Ivanova K.I., Perfilyeva O.N., Makarova K.P., Vahitov D.I., Danilchenko N.V., Egorova M.L., Vasiltsova N.N., Sharabrin S.V., Rudometova N.V., Kisakov D.N., Kisakova L.A., Ilyicheva T.N., Marchenko V.Y., Karpenko L.I., Ilyichev A.A., Rudometov A.P.</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.biopreparations.ru/jour/article/view/802">https://www.biopreparations.ru/jour/article/view/802</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Высокопатогенный вирус гриппа птиц подтипа H5Nx быстро эволюционирует и заражает различные виды диких и домашних млекопитающих, включая крупный рогатый скот, что подчеркивает его пандемический потенциал для человека. Для борьбы с угрозой пандемии необходимо разрабатывать подходящие вакцинные платформы, к которым относятся мРНК-вакцины, их эффективность во многом зависит от системы доставки. Данное исследование посвящено оценке иммуногенности и протективности мРНК-вакцины mRNA-H5, доставленной с помощью липидных наночастиц (LNP) и струйной инжекции (СИ).</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Изучение иммуногенных и протективных свойств экспериментальной мРНК-вакцины mRNA-H5 на модели хорьков.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Проведена двухкратная иммунизация хорьков мРНК-вакциной mRNA-H5 в дозе 30 мкг в комплексе с LNP и в дозе 100 мкг при введении СИ. Сыворотки иммунизированных хорьков исследованы методами иммуноферментного анализа (ИФА) на рекомбинантном белке HA/H5, ELISpot с использованием пула специфических пептидов и вируснейтрализации в культуре клеток MDCK-SIAT1 с использованием штамма вируса гриппа A/turkey/Stavropol/320-01/2020 (H5N8). Произведено интраназальное заражение иммунизированных хорьков 5 LD50 штамма вируса гриппа A/dalmatian pelican/ Kalmykia/330-10V/2023 (H5N1) и регистрация состояния хорьков в течение 14 сут после заражения.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. С помощью метода ИФА установлены титры специфических антител в группах животных, иммунизированных мРНК-вакциной mRNA-H5 с помощью СИ и в составе LNP; средние титры в группах составили 1:180 000 и 1:4 000 000 соответственно. С помощью метода вируснейтрализации показано, что сыворотки животных, иммунизированных мРНК-вакциной mRNA-H5 с помощью СИ и в составе LNP, обладают вируснейтрализующей активностью; средние 50% нейтрализующие титры составили 1:250 и 1:1500 соответственно. Методом ELISpot показано, что в группах хорьков, иммунизированных мРНК-вакциной mRNA-H5, активируется специфический клеточный иммунитет. Иммунизация обеспечивала 100% защиту хорьков от гибели при заражении 5 LD50 штамма вируса гриппа A/dalmatian pelican/Kalmykia/330-10V/2023 (H5N1).</p></sec><sec><title>ВЫВОДЫ</title><p>ВЫВОДЫ. Результаты исследования свидетельствуют о высокой эффективности активации вирус-специфического гуморального и клеточного иммунного ответа у хорьков, иммунизированных мРНК-вакциной mRNA-H5 в случае доставки СИ и в комплексе с LNP.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. The highly pathogenic avian influenza virus subtype H5Nx is rapidly evolving and infecting various species of wild and domestic mammals, including cattle, highlighting its pandemic potential for humans. To combat the pandemic threat, it is essential to develop suitable vaccine platforms, including mRNA vaccines, the efficacy of which largely depends on the delivery system. This study evaluates the immunogenicity and protective efficacy of the mRNA-H5 vaccine, delivered via lipid nanoparticles (LNPs) and jet injection (JI).</p></sec><sec><title>AIM</title><p>AIM. The aim of the study was to evaluate the immunogenic and protective properties of the experimental mRNA-H5 vaccine in a ferret model.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS. Ferrets were immunized twice with the mRNA-H5 vaccine at a dose of 30 μg formulated with LNPs and at a dose of 100 μg administered by JI. Sera from immunized ferrets were analyzed using an enzyme-linked immunosorbent assay (ELISA) against the recombinant HA/H5 protein, an enzyme-linked immunospot (ELISpot) assay using a pool of specific peptides, and a virus neutralization assay in MDCK-SIAT1 cell culture using the influenza virus strain A/turkey/Stavropol/320-01/2020 (H5N8). Immunized ferrets were intranasally challenged with 5 LD50 of the influenza virus strain A/dalmatian pelican/Kalmykia/ 330-10V/2023 (H5N1), and their status was recorded for 14 days after challenge.</p></sec><sec><title>RESULTS</title><p>RESULTS. Using ELISA, it was established that specific antibody titers were determined in groups of animals immunized with the mRNA-H5 vaccine administered by JI or formulated with LNPs; the average titers in the groups were 1:180,000 and 1:4,000,000, respectively. Using the virus neutralization assay, sera from animals immunized with the mRNA-H5 vaccine administered by JI or formulated with LNPs had virus-neutralizing activity; the average 50% neutralizing titers were 1:250 and 1:1500, respectively. The ELISpot assay showed that in groups of ferrets immunized with the mRNA-H5 vaccine, specific cellular immunity was induced. Immunization with the mRNA-H5 vaccine provided 100% protection against mortality in ferrets challenged with 5 LD50 of the influenza virus strain A/dalmatian pelican/Kalmykia/330-10V/2023 (H5N1).</p></sec><sec><title>CONCLUSIONS</title><p>CONCLUSIONS. This study demonstrated the effective induction of virus-specific humoral and cellular immune responses in ferrets immunized with the mRNA-H5 vaccine administered by JI or formulated with LNPs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>мРНК-вакцина</kwd><kwd>вирус гриппа H5Nx</kwd><kwd>струйная инжекция</kwd><kwd>хорьки</kwd><kwd>иммуногенность</kwd><kwd>ИФА</kwd><kwd>вируснейтрализация</kwd><kwd>протективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mRNA vaccine</kwd><kwd>H5Nx influenza virus</kwd><kwd>jet injection</kwd><kwd>ferrets</kwd><kwd>immunogenicity</kwd><kwd>ELISA</kwd><kwd>virus neutralization</kwd><kwd>protective efficacy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФБУН «Государственный научный центр вирусологии и биотехнологии «Вектор» Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека.</funding-statement><funding-statement xml:lang="en">The study was conducted under the state assignment of the State Research Center of Virology and Biotechnology “Vector”.</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">Lam JY, Yuen CK, Cheung SK, et al. 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