Главная
Авторизация
Фамилия
Пароль
 

Базы данных


Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Область поиска
в найденном
 Найдено в других БД:Каталог книг и брошюр библиотеки ИФ СО РАН (5)
Формат представления найденных документов:
полныйинформационныйкраткий
Отсортировать найденные документы по:
авторузаглавиюгоду изданиятипу документа
Поисковый запрос: (<.>A=Томилин, Феликс Николаевич$<.>)
Общее количество найденных документов : 153
Показаны документы с 1 по 10
 1-10    11-20   21-30   31-40   41-50   51-60      
1.


   
    11C-radiolabeled aptamer for imaging of tumors and metastases using positron emission tomography-computed tomography / A. V. Ozerskaya, T. N. Zamay, O. S. Kolovskaya [et al.] // Mol. Ther. Nucl. Acids. - 2021. - Vol. 26. - P. 1159-1172, DOI 10.1016/j.omtn.2021.10.020. - Cited References: 44 . - ISSN 2162-2531
Кл.слова (ненормированные):
11C radiolabeling -- radiopharmaceuticals -- PET/CT -- in vivo imaging -- DNA aptamers -- Ehrlich ascites carcinoma -- metastasis
Аннотация: Identification of primary tumors and metastasis sites is an essential step in cancer diagnostics and the following treatment. Positron emission tomography-computed tomography (PET/CT) is one of the most reliable methods for scanning the whole organism for malignancies. In this work, we synthesized an 11C-labeled oligonucleotide primer and hybridized it to an anti-cancer DNA aptamer. The 11C-aptamer was applied for in vivo imaging of Ehrlich ascites carcinoma and its metastases in mice using PET/CT. The imaging experiments with the 11C-aptamer determined very small primary and secondary tumors of 3 mm2 and less. We also compared 11C imaging with the standard radiotracer, 2-deoxy-2-[fluorine-18]fluoro-D-glucose (18F-FDG), and found better selectivity of the 11C-aptamer to metastatic lesions in the metabolically active organs than 18F-FDG. 11C radionuclide with an ultra-short (20.38 min) half-life is considered safest for PET/CT imaging and does not cause false-positive results in heart imaging. Its combination with aptamers gives us high-specificity and high-contrast imaging of cancer cells and can be applied for PET/CT-guided drug delivery in cancer therapies.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Federal Siberian Research Clinical Centre Under the Federal Medical Biological Agency, Krasnoyarsk, Russian Federation
Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russian Federation
Federal Research Center Krasnoyarsk Science- Center SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Canada
Krasnoyarsk Regional Pathology-Anatomic Bureau, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ozerskaya, A. V.; Zamay, T. N.; Kolovskaya, O. S.; Tokarev, N. A.; Belugin, K. V.; Chanchikova, N. G.; Badmaev, O. N.; Zamay, G. S.; Shchugoreva, I. A.; Moryachkov, R. V.; Морячков, Роман Владимирович; Zabluda, V. N.; Заблуда, Владимир Николаевич; Khorzhevskii, V. A.; Shepelevich, N.; Gappoev, S. V.; Karlova, E. A.; Saveleva, A. S.; Volzhentsev, A. A.; Blagodatova, A. N.; Lukyanenko, K. A.; Veprintsev, D. V.; Smolyarova, T. E.; Смолярова, Татьяна Евгеньевна; Tomilin, F. N.; Томилин, Феликс Николаевич; Zamay, S. S.; Silnikov, V. N.; Berezovski, M. V.; Kichkailo, A. S.
}
Найти похожие
2.


   
    A key role of tensile strain and surface termination in formation and properties of La0.7Sr0.3MnO3 composites with carbon nanotubes / E. A. Kovaleva [et al.] // Comput. Mater. Sci. - 2017. - Vol. 139. - P. 125-131, DOI 10.1016/j.commatsci.2017.07.021. - Cited References: 39. - This work was supported by National Research Foundation of Republic of Korea under Grant No. NRF-2017R1A2B4004440 and the government contract of the Ministry of Education and Science of the Russian Federation to Siberian Federal University (Grant No. 16.1455.2017/PCh). The authors would like to thank Joint Supercomputer Center of RAS, Moscow; Center of Equipment for Joint Use of Siberian Federal University, Krasnoyarsk; and Information Technology Centre, Novosibirsk State University for providing the access to their supercomputers. P.B.S gratefully acknowledges the financial supports of the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST «MISiS» (No. К2-2017-001) and RFBR, according to the research project No. 16-32-60138 mol_a_dk. E.A. Kovaleva would also like to acknowledge the program of the President of Russian Federation for Leading Scientific Schools Support (Grant No. 2016 NSh-7559.2016.2). . - ISSN 0927-0256
Кл.слова (ненормированные):
Carbon nanotubes -- LSMO -- Interface -- Spin polarization
Аннотация: Atomic and electronic structure of LSMO-based composites with carbon nanotubes were studied by means of density functional theory with respect to the termination of LSMO surface. The deformation of the tubes caused by the lattice mismatch with the substrate leads to a major change in their electronic structure. The surface terminated with Mn-O layer provides much stronger interaction with carbon nanotubes than Sr-O terminated one does. The interaction with transition metal atoms is essential for spin polarization of the nanotube while no spin injection was observed for Sr-O-supported tubes. © 2017 Elsevier B.V.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics, 50 Akademgorodok, Krasnoyarsk, Russian Federation
Kyungpook National University, 80 Daehakro, Bukgu, Daegu, South Korea
National University of Science and Technology MISiS, 4 Leninskiy prospekt, Moscow, Russian Federation

Доп.точки доступа:
Kovaleva, E. A.; Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Kholtobina, A. S.; Kuklin, A. V.; Куклин, Артем Валентинович; Tomilin, F. N.; Томилин, Феликс Николаевич; Sorokin, P. B.
}
Найти похожие
3.


   
    A quantum chemical study of the formation of 2-hydroperoxy-coelenterazine in the Ca2+-regulated photoprotein obelin / L. Y. Antipina [et al.] // Journal of Structural Chemistry. - 2011. - Т. 52, № 5. - P870-875 . - ISSN 0022-4766. - ISSN 1573-8779

РИНЦ
Держатели документа:
Institute of Biophysics,Siberian Division,Russian Academy of Sciences
L. V. Kirensky Institute of Physics,Siberian Division,Russian Academy of Sciences
M. F. Reshetnev Siberian State Aerospace University

Доп.точки доступа:
Antipina, L.Y.; Tomilin, F. N.; Томилин, Феликс Николаевич; Ovchinnikov, S.G.; Vysotskii, E.S.
}
Найти похожие
4.


   
    A quantum chemical study of the formation of 2-hydroperoxy-coelenterazine in the Сa2+-regulated photoprotein obelin / L. Y. Antipina [et al.] // J. Struct. Chem. - 2011. - Vol. 52, Is. 5. - P. 870-875. - Cited References: 19. - The work was supported by RFBR (07-04-00930-a), the "Molecular and Cell Biology" Program of the Presidium of the Russian Academy of Sciences, and the Program of the Siberian Division of the Russian Academy of Sciences (project No. 2) within the implementation of the Federal Targeted Program "Scientific and Scientific Pedagogical Personnel of Innovative Russia, 2010" (P333 and P213). . - ISSN 0022-4766
РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
CALCIUM-DISCHARGED OBELIN
   SEMIEMPIRICAL METHODS

   1.7 ANGSTROM

   OPTIMIZATION

   PARAMETERS

   MECHANISM

   FLUORESCENCE

   ELEMENTS

   PROTEIN

   EMITTER

Кл.слова (ненормированные):
coelenterazine -- 2-hydroperoxy-coelenterazine -- Obelia longissima -- Renilla muelleri
Аннотация: The Ca2+-regulated photoprotein obelin determines the luminescence of the marine hydroid Obelia longissima. Bioluminescence is initiated by calcium and appears as a result of the oxidative decarboxylation related to the coelenterazine substrate. The luciferase of the luminescent marine coral Renilla muelleri (RM) also uses coelenterazine as a substrate. However, three proteins are involved in the in vivo bioluminescence of these animals: luciferase, green fluorescent protein, and Ca2+-regulated coelenterazine-binding protein (CBP). In fact, CBP that contains one strongly bound coelenterazine molecule is the RM luciferase substrate in the in vivo bioluminescent reaction. Coelenterazine becomes available for oxygen and the reaction with luciferase only after binding CBP with calcium ions. Unlike Ca2+-regulated photoproteins, the coelenterazine molecule is not activated by oxygen in the CBP molecule. In this work, by means of quantum chemical methods the behavior of substrates in these proteins is analyzed. It is shown that coelenterazine can form different tautomers: CLZ(2H) and CLZ(7H). The formation of 2-hydroperoxy-coelenterazine is studied. According to the obtained data, these proteins use different forms of the substrates for the reaction. In obelin, the substrate is in the CLZ(2H) form that affords hydrogen peroxide. In RM, coelenterazine is in the CLZ(7H) form, and therefore, CBP is not activated by oxygen.

WoS,
Смотреть статью,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk, Russia
MF Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Antipina, L. Yu.; Tomilin, F. N.; Томилин, Феликс Николаевич; Vysotski, E. S.; Высоцкий, Евгений Степанович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
Найти похожие
5.


   
    Action of the atomic and electronic structure of pheromone molecules on the effectiveness of communication in xylophagous insects / P. V. Artyushenko [et al.] // J. Struct. Chem. - 2016. - Vol. 57, Is. 2. - P. 287-293, DOI 10.1134/S0022476616020074. - Cited References:27. - This work was supported by RFBR projects Nos. 13-04-00375 and16-04-00132. . - ISSN 0022-4766. - ISSN 1573-8779
РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
Monochamus-galloprovincialis coleoptera
   Density-functional theories

   Beetle Ips-typographus

   Pine sawyer beetle

   Aggregation pheromone

   Cerambycidae

   Attraction

   Components

   Attack

   Set

Кл.слова (ненормированные):
atomic and electronic structure -- functional density methods -- absorption -- spectra -- excited states -- xylophages -- pheromones
Аннотация: The B3LYD /6-31(p,d) density functional method is applied to pheromones of the forest xylophagous insects Ips typographus L., Monochamus urussovi Fisch., and Monochamus galloprovincialis Oliv. to calculate the absorption spectra and find excited states. The calculated results are used to assess the possible activity of the molecules when they are affected by solar radiation.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ

Публикация на русском языке Влияние атомной и электронной структуры молекул феромонов на эффективность коммуникации насекомых-ксилофагов [Текст] / П. В. Артюшенко [и др.] // Журн. структ. химии. - 2016. - Т. 57 № 2. - С. 304-310

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, KSC Presidium, Int Res Ctr Studies Extreme States Organism, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk, Russia.

Доп.точки доступа:
Artyushenko, P. V.; Артюшенко, Полина Владимировна; Tomilin, F. N.; Томилин, Феликс Николаевич; Kuzubov, A. A.; Кузубов, Александр Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Tsikalova, P. E.; Ovchinnikova, T. M.; Soukhovolsky, V. G.; RFBR [13-04-00375, 16-04-00132]
}
Найти похожие
6.


   
    Aptamer-conjugated superparamagnetic ferroarabinogalactan nanoparticles for targeted magnetodynamic therapy of cancer / O. S. Kolovskaya, T. N. Zamay, G. S. Zamay [et al.] // Cancers. - 2020. - Vol. 12, Is. 1. - Ст. 216, DOI 10.3390/cancers12010216. - Cited References: 46. - This research was funded by the Ministry of Science and Higher Education of the Russian Federation; project 0287-2019-0007 . - ISSN 2072-6694
Кл.слова (ненормированные):
aptamers -- arabinogalactan -- superparamagnetic ferroarabinogalactans -- drug delivery -- magnetodynamic therapy -- magnetically induced cell disruption -- magnetic resonance imaging
Аннотация: Nanotechnologies involving physical methods of tumor destruction using functional oligonucleotides are promising for targeted cancer therapy. Our study presents magnetodynamic therapy for selective elimination of tumor cells in vivo using DNA aptamer-functionalized magnetic nanoparticles exposed to a low frequency alternating magnetic field. We developed an enhanced targeting approach of cancer cells with aptamers and arabinogalactan. Aptamers to fibronectin (AS-14) and heat shock cognate 71 kDa protein (AS-42) facilitated the delivery of the nanoparticles to Ehrlich carcinoma cells, and arabinogalactan (AG) promoted internalization through asialoglycoprotein receptors. Specific delivery of the aptamer-modified FeAG nanoparticles to the tumor site was confirmed by magnetic resonance imaging (MRI). After the following treatment with a low frequency alternating magnetic field, AS-FeAG caused cancer cell death in vitro and tumor reduction in vivo. Histological analyses showed mechanical disruption of tumor tissues, total necrosis, cell lysis, and disruption of the extracellular matrix. The enhanced targeted magnetic theranostics with the aptamer conjugated superparamagnetic ferroarabinogalactans opens up a new venue for making biocompatible contrasting agents for MRI imaging and performing non-invasive anti-cancer therapies with a deep penetrated magnetic field.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Science”, 660036 Krasnoyarsk, Russia
Laboratory for Biomolecular and Medical Technologies, Faculty of Medicine, Krasnoyarsk State Medical University named after prof. V.F. Voino-Yasenecki, 660022 Krasnoyarsk, Russia
Irkutsk Institute of Chemistry named after A.E. Favorsky, the Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russia
L.V. Kirensky Institute of Physics SB RAS—The Branch of Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
Laboratory of Advanced Materials and Technology, Tomsk State University, 634050 Tomsk, Russia
Institute of Chemistry and Chemical Technology SB RAS—The Branch of Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, 660036 Krasnoyarsk, Russia
School of Engineering Physics and Radio Electronics, Siberian Federal University, 660041 Krasnoyarsk, Russia
Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
School of Non-Ferrous Metals and Materials Science, Siberian Federal University, 660041 Krasnoyarsk, Russia
Faculty of Physics, Department of Magnetism, Lomonosov Moscow State University, 119991 Moscow, Russia
School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada

Доп.точки доступа:
Kolovskaya, O. S.; Коловская, О. С.; Zamay, T. N.; Замай, Т. Н.; Zamay, G. S.; Замай, Галина Сергеевна; Babkin, V. A.; Medvedeva, E. N.; Neverova, N. A.; Kirichenko, A. K.; Zamay, S. S.; Замай, С. С.; Lapin, I. N.; Morozov, E. V.; Морозов, Евгений Владимирович; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Narodov, A. A.; Fedorov, D. G.; Tomilin, F. N.; Томилин, Феликс Николаевич; Zabluda, V. N.; Заблуда, Владимир Николаевич; Alekhina, Yu.; Lukyanenko, K. A.; Glazyrin, Yu. E.; Svetlichnyi, V. A.; Berezovski, M. V.; Kichkailo, A. S.
}
Найти похожие
7.


   
    Atomic and electronic structure of MAX-phase Cr2AlC studied by DFT calculations / D. Ivanova, N. Fedorova, V. Kozak [et al.] // International workshop on the properties of functional MAX-materials (2nd FunMax) : book of abstracts / org. com. M. Farle [et al.]. - 2021. - P. 37

Материалы конференции,
Читать в сети ИФ

Доп.точки доступа:
Farle, M. \org. com.\; Ovchinnikov, S. G. \org. com.\; Овчинников, Сергей Геннадьевич; Tarasov, A. S. \org. com.\; Тарасов, Антон Сергеевич; Smolyarova, T. E. \org. com.\; Смолярова, Татьяна Евгеньевна; Ivanova, D.; Fedorova, N.; Kozak, V.; Shubin, A.; Tomilin, F. N.; Томилин, Феликс Николаевич; International workshop on functional MAX-materials(2 ; 2021 ; Sept. 14-17 ; Krasnoyarsk (on-line)); Kirensky Institute of Physics; Siberian Federal Univercity
}
Найти похожие
8.


   
    Ca2+-triggered coelenterazine-binding protein Renilla: Expected and unexpected features / A. N. Kudryavtsev, V. V. Krasitskaya, M. K. Efremov [et al.] // Int. J. Mol. Sci. - 2023. - Vol. 24, Is. 3. - Ст. 2144, DOI 10.3390/ijms24032144. - Cited References: 24. - This research was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences, project No. 0287-2022-0002 and the Interagency Supercomputer Center of the Russian Academy of Sciences, MVS-100K and MVS-10P . - ISSN 1661-6596. - ISSN 1422-0067
Кл.слова (ненормированные):
Ca2+-triggered coelenterazine-binding protein -- coelenterazine -- furimazine -- luciferase NanoLuc -- B3LYP -- TDDFT -- fragmented molecular orbitals method -- DFTB3
Аннотация: Ca2+-triggered coelenterazine-binding protein (CBP) is a natural form of the luciferase substrate involved in the Renilla bioluminescence reaction. It is a stable complex of coelenterazine and apoprotein that, unlike coelenterazine, is soluble and stable in an aquatic environment and yields a significantly higher bioluminescent signal. This makes CBP a convenient substrate for luciferase-based in vitro assay. In search of a similar substrate form for the luciferase NanoLuc, a furimazine-apoCBP complex was prepared and verified against furimazine, coelenterazine, and CBP. Furimazine-apoCBP is relatively stable in solution and in a frozen or lyophilized state, but as distinct from CBP, its bioluminescence reaction with NanoLuc is independent of Ca2+. NanoLuc turned out to utilize all the four substrates under consideration. The pairs of CBP-NanoLuc and coelenterazine-NanoLuc generate bioluminescence with close efficiency. As for furimazine-apoCBP-NanoLuc pair, the efficiency with which it generates bioluminescence is almost twice lower than that of the furimazine-NanoLuc. The integral signal of the CBP-NanoLuc pair is only 22% lower than that of furimazine-NanoLuc. Thus, along with furimazine as the most effective NanoLuc substrate, CBP can also be recommended as a substrate for in vitro analytical application in view of its water solubility, stability, and Ca2+-triggering “character”.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia
School of Fundamental Biology and Biotechnology, School of Non-Ferrous Metals and Material Science, Siberian Federal University, pr. Svobodny 79, 660041 Krasnoyarsk, Russia
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB”, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Kudryavtsev, Alexander N.; Krasitskaya, Vasilisa V.; Efremov, Maxim K.; Zangeeva, Sayana V.; Rogova, A. V.; Рогова, Анастасия Владимировна; Tomilin, F. N.; Томилин, Феликс Николаевич; Frank, Ludmila A.
}
Найти похожие
9.


   
    Calculating the energy of vacancies and adatoms in a hexagonal SiC monolayer / A. A. Kuzubov [et al.] // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 7. - P. 1091-1095, DOI 10.1134/S0036024412070138. - Cited References: 21 . - ISSN 0036-0244
РУБ Chemistry, Physical
Рубрики:
INITIO MOLECULAR-DYNAMICS
   ELECTRONIC-PROPERTIES

   ABSORPTION-SPECTRA

Кл.слова (ненормированные):
silicon carbide -- defects -- adatoms -- density functional method
Аннотация: It is noted that the development of semiconductor SiC-electronics is prevented by a low quality of grown silicon carbide single crystals. It is found that structural defects of a substrate penetrating into an epitaxial layer upon subsequent homoepitaxial growth can considerably degrade a device's characteristics. We investigate the effect of the deformation of a hexagonal SiC monolayer on vacancy stability and material properties, and study the processes of silicon and carbon adatom migration over a surface of SiC.

Смотреть статью,
Scopus,
WoS,
Читать в сети ИФ

Публикация на русском языке Расчет энергии вакансий и адатомов в монослое гексагонального SiC [Текст] / А. А. Кузубов [и др.] // Журн. физ. химии. - 2012. - Т. 86 № 7. - С. 1207-1211

Держатели документа:
[Kuzubov, A. A.
Eliseeva, N. S.
Tomilin, F. N.
Tolstaya, A. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Kuzubov, A. A.
Krasnov, P. O.
Tomilin, F. N.
Fedorov, A. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Kuzubov, A. A.
Krasnov, P. O.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Eliseeva, N. S.; Krasnov, P. O.; Краснов, Павел Олегович; Tomilin, F. N.; Томилин, Феликс Николаевич; Fedorov, A. S.; Федоров, Александр Семенович; Tolstaya, A. V.
}
Найти похожие
10.


   
    Characterizing aptamer interaction with the oncolytic virus VV-GMCSF-Lact / M. A. Dymova, D. O. Malysheva, V. K. Popova [et al.] // Molecules. - 2024. - Vol. 29, Is. 4. - Ст. 848, DOI 10.3390/molecules29040848. - Cited References: 46. - This study was supported by the Russian Science Foundation grant No. 22-64-00041, available online: https://rscf.ru/en/project/22-64-00041/ (accessed on 6 February 2024). This work was supported by the Russian state-funded project for ICBFM SB RAS (grant number 121030200173-6) . - ISSN 1420-3049
Кл.слова (ненормированные):
aptamer -- oncolytic virus -- glioma -- dynamic light scattering -- microscale thermophoresis
Аннотация: Aptamers are currently being investigated for their potential to improve virotherapy. They offer several advantages, including the ability to prevent the aggregation of viral particles, enhance target specificity, and protect against the neutralizing effects of antibodies. The purpose of this study was to comprehensively investigate an aptamer capable of enhancing virotherapy. This involved characterizing the previously selected aptamer for vaccinia virus (VACV), evaluating the aggregation and molecular interaction of the optimized aptamers with the recombinant oncolytic virus VV-GMCSF-Lact, and estimating their immunoshielding properties in the presence of human blood serum. We chose one optimized aptamer, NV14t_56, with the highest affinity to the virus from the pool of several truncated aptamers and built its 3D model. The NV14t_56 remained stable in human blood serum for 1 h and bound to VV-GMCSF-Lact in the micromolar range (Kd ≈ 0.35 μM). Based on dynamic light scattering data, it has been demonstrated that aptamers surround viral particles and inhibit aggregate formation. In the presence of serum, the hydrodynamic diameter (by intensity) of the aptamer–virus complex did not change. Microscale thermophoresis (MST) experiments showed that NV14t_56 binds with virus (EC50 = 1.487 × 109 PFU/mL). The analysis of the amplitudes of MST curves reveals that the components of the serum bind to the aptamer–virus complex without disrupting it. In vitro experiments demonstrated the efficacy of VV-GMCSF-Lact in conjunction with the aptamer when exposed to human blood serum in the absence of neutralizing antibodies (Nabs). Thus, NV14t_56 has the ability to inhibit virus aggregation, allowing VV-GMCSF-Lact to maintain its effectiveness throughout the storage period and subsequent use. When employing aptamers as protective agents for oncolytic viruses, the presence of neutralizing antibodies should be taken into account.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Lavrentiev av. 8, 630090 Novosibirsk, Russia
Department of Natural Sciences, Novosibirsk State University, Pirogova str. 1, 630090 Novosibirsk, Russia
State Research Center of Virology and Biotechnology “Vector”, 630559 Koltsovo, Russia
Laboratory for Biomolecular and Medical Technologies, Krasnoyarsk State Medical University Named after Prof. V.F. Voyno-Yasenetsky, Partizana Zheleznyaka str. 1, 660022 Krasnoyarsk, Russia
Federal Research Center KSC SB RAS, 50 Akademgorodok, 660036 Krasnoyarsk, Russia
Kirensky Institute of Physics, 50/38 Akademgorodok, 660012 Krasnoyarsk, Russia

Доп.точки доступа:
Dymova, M. A.; Malysheva, D. O.; Popova, V. K.; Dmitrienko, E. V.; Endutkin, A. V.; Drokov, D. V.; Mukhanov, V. S.; Byvakina, A. A.; Kochneva, G. V.; Artyushenko, P. V.; Shchugoreva, I. A.; Rogova, A. V.; Tomilin, F. N.; Томилин, Феликс Николаевич; Kichkailo, A. S.; Richter, V. A.; Kuligina, E. V.
}
Найти похожие
 1-10    11-20   21-30   31-40   41-50   51-60      
 

Другие библиотеки

© Международная Ассоциация пользователей и разработчиков электронных библиотек и новых информационных технологий
(Ассоциация ЭБНИТ)