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Ivanov PA, Lyashko AV, Ionov SA, Shcherbinin DN, Rudneva IA, Shilov AA, Bunkova NI, Shmarov MM, Timofeeva TA. [Latex Agglutination as an Alternative to the Hemagglutination Reaction of Influenza Viruses]. Mol Biol (Mosk) 2023; 57:898-906. [PMID: 37752655 DOI: 10.31857/s0026898423040092, edn: qlotlj] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/12/2023] [Indexed: 09/28/2023]
Abstract
As an alternative to the classical method of erythrocyte hemagglutination, a latex agglutination assay based on the interaction of influenza viruses with the sialoglycoprotein fetuin immobilized on the surface of polystyrene microspheres has been developed. Twelve influenza A virus strains of different subtypes and two influenza B viruses of different lines were tested. Simultaneous titration of viruses using the classical hemagglutination test and the proposed latex agglutination assay showed similar sensitivity and a high degree of correlation (R = 0.94). The obtained microspheres can be used for titration of viruses that recognize and bind sialylated glycans as receptors. In particular, latex aggregation was also induced by the Newcastle disease virus.
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Affiliation(s)
- P A Ivanov
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
- Winogradsky Institute of Microbiology RC Biotechnology, Russian Academy of Sciences, Moscow, 117312 Russia
| | - A V Lyashko
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
| | - S A Ionov
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
- Mendeleev University of Chemical Technology, Moscow, 117312 Russia
| | - D N Shcherbinin
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
| | - I A Rudneva
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
| | - A A Shilov
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
| | - N I Bunkova
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
| | - M M Shmarov
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
- Sechenov First Moscow State University, Moscow, 101000 Russia
| | - T A Timofeeva
- National Research Center for Epidemiology and Microbiology named after the Academician N.F Gamalei, Moscow, 123098 Russia
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Asatryan MN, Timofeev BI, Shmyr IS, Khachatryan KR, Shcherbinin DN, Timofeeva TA, Gerasimuk ER, Agasaryan VG, Ershov IF, Shashkova TI, Kardymon OL, Ivanisenko NV, Semenenko TA, Naroditsky BS, Logunov DY, Gintsburg AL. [Mathematical model for assessing the level of cross-immunity between strains of influenza virus subtype H 3N 2]. Vopr Virusol 2023; 68:252-264. [PMID: 37436416 DOI: 10.36233/0507-4088-179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Indexed: 07/13/2023]
Abstract
INTRODUCTION The WHO regularly updates influenza vaccine recommendations to maximize their match with circulating strains. Nevertheless, the effectiveness of the influenza A vaccine, specifically its H3N2 component, has been low for several seasons. The aim of the study is to develop a mathematical model of cross-immunity based on the array of published WHO hemagglutination inhibition assay (HAI) data. MATERIALS AND METHODS In this study, a mathematical model was proposed, based on finding, using regression analysis, the dependence of HAI titers on substitutions in antigenic sites of sequences. The computer program we developed can process data (GISAID, NCBI, etc.) and create real-time databases according to the set tasks. RESULTS Based on our research, an additional antigenic site F was identified. The difference in 1.6 times the adjusted R2, on subsets of viruses grown in cell culture and grown in chicken embryos, demonstrates the validity of our decision to divide the original data array by passage histories. We have introduced the concept of a degree of homology between two arbitrary strains, which takes the value of a function depending on the Hamming distance, and it has been shown that the regression results significantly depend on the choice of function. The provided analysis showed that the most significant antigenic sites are A, B, and E. The obtained results on predicted HAI titers showed a good enough result, comparable to similar work by our colleagues. CONCLUSION The proposed method could serve as a useful tool for future forecasts, with further study to confirm its sustainability.
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Affiliation(s)
- M N Asatryan
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - B I Timofeev
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - I S Shmyr
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | | | - D N Shcherbinin
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - T A Timofeeva
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | | | - V G Agasaryan
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - I F Ershov
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | | | | | | | - T A Semenenko
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - B S Naroditsky
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - D Y Logunov
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
| | - A L Gintsburg
- National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
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Smirnova TA, Karpov NBPDS, Solovyev AI, Shevlyagina NV, Andreevskaya SG, Shcherbinin DN, Plieva ZS, Kozlova VA, Pereborova AA, Bogdanov IA, Grumov DA, Zubasheva MV, Poddubko SV, Grechnikov AA, Sukhina MA, Zhukhovitsky VG. [Identification of Clinical Isolates of the Bacillus cereus Group and Their Characterization by Mass Spectrometry and Electron Microscopy]. Mol Biol (Mosk) 2023; 57:609-622. [PMID: 37528781 DOI: 10.31857/s0026898423040201, edn: qlylnq] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/30/2022] [Indexed: 08/03/2023]
Abstract
Bacillus cereus is a spore-forming bacterium found in the environment mainly in soil. Bacillus spores are known to be extremely resistant not only to environmental factors, but also to various sanitation regimes. This leads to spore contamination of toxin-producing strains in hospital and food equipment and, therefore, poses a great threat to human health. Two clinical isolates identified as B. cereus and B. cytotoxicus were used in the present work. It was shown that their calcium ion content was significantly lower than that of the reference strains. According to electron microscopy, one of the SRCC 19/16 isolates has an enlarged exosporium, and the SRCC 1208 isolate has large electron-dense inclusions of an unclear nature during sporulation. We can assume that these contain a biologically active component with a cytotoxic effect and possibly play a role in pathogenesis. Comparative chemical, biochemical, physiological, and ultrastructural analysis of spores of clinical isolates and reference strains of B. cereus was performed. The results we obtained deepen our understanding of the properties of spores that contribute to the increased pathogenicity of B. cereus group species.
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Affiliation(s)
- T A Smirnova
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - N B Polyakov D S Karpov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
| | - A I Solovyev
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - N V Shevlyagina
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - S G Andreevskaya
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - D N Shcherbinin
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - Z S Plieva
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - V A Kozlova
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - A A Pereborova
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - I A Bogdanov
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
- Nanopromimport LLC, Moscow State University Science Park, Moscow, 119234 Russia
| | - D A Grumov
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - M V Zubasheva
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
| | - S V Poddubko
- State Scientific Center of the Russian Federation, Institute of Bio-Medical Problems, Russian Academy of Sciences, Moscow, 123007 Russia
| | - A A Grechnikov
- Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, 119334 Russia
| | - M A Sukhina
- Ryzhikh State Research Center of Coloproctology, Ministry of Public Health, Moscow, 123423 Russia
| | - V G Zhukhovitsky
- Gamaleya National Research Center for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Moscow, 123098 Russia
- Russian Medical Academy of Continuing Professional Education (RMANPO), Ministry of Public Health of the Russian Federation, Moscow, 125993 Russia
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Voronina DV, Shcheblyakov DV, Esmagambetov IB, Derkaev AA, Popova O, Shcherbinin DN. Development of Neutralizing Nanobodies to the Hemagglutinin Stem Domain of Influenza A Viruses. Acta Naturae 2021; 13:33-41. [PMID: 35127144 PMCID: PMC8807538 DOI: 10.32607/actanaturae.11495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/05/2021] [Indexed: 11/20/2022] Open
Abstract
The influenza virus infection claims ~650,000 lives annually. Taking into account the evolving resistance of the pathogen to antiviral drugs and the waning effectiveness of vaccination among certain populations, new approaches to the treatment of influenza are needed. The current study is aimed at obtaining single-domain antibodies (Nanobodies®) to the highly conserved stem domain of influenza A virus hemagglutinin by phage display. Two high-affinity neutralizing clones of Nanobodies® with a particular specificity were selected; they ensured 100% neutralization of the H1N1 and H5N2 influenza viruses in vivo. The obtained data demonstrate that it is possible to develop highly effective VHH-based drugs for the treatment of influenza.
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Affiliation(s)
- D. V. Voronina
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
| | - D. V. Shcheblyakov
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
| | - I. B. Esmagambetov
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
| | - A. A. Derkaev
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
| | - O. Popova
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
| | - D. N. Shcherbinin
- FSBI “National Research Centre for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya” of the Ministry of Health of Russia, Moscow, 123098 Russia
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5
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Esmagambetov IB, Shcheblyakov DV, Egorova DA, Voronina OL, Derkaev AA, Voronina DV, Popova O, Ryabova EI, Shcherbinin DN, Aksenova EI, Semenov AN, Kunda MS, Ryzhova NN, Zubkova OV, Tukhvatulin AI, Logunov DY, Naroditsky BS, Borisevich SV, Gintsburg AL. Nanobodies Are Potential Therapeutic Agents for the Ebola Virus Infection. Acta Naturae 2021; 13:53-63. [PMID: 35127147 PMCID: PMC8807537 DOI: 10.32607/actanaturae.11487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/14/2021] [Indexed: 11/25/2022] Open
Abstract
Ebola fever is an acute, highly contagious viral disease with a mortality rate that can reach 90%. There are currently no licensed therapeutic agents specific to Ebola in the world. Monoclonal antibodies (MAbs) with viral-neutralizing activity and high specificity to the Ebola virus glycoprotein (EBOV GP) are considered as highly effective potential antiviral drugs. Over the past decade, nanobodies (single-domain antibodies, non-canonical camelid antibodies) have found wide use in the diagnosis and treatment of various infectious and non-infectious diseases. In this study, a panel of nanobodies specifically binding to EBOV GP was obtained using recombinant human adenovirus 5, expressing GP (Ad5-GP) for alpaca (Vicugna pacos) immunization, for the first time. Based on specific activity assay results, affinity constants, and the virus-neutralizing activity against the recombinant vesicular stomatitis virus pseudotyped with EBOV GP (rVSV-GP), the most promising clone (aEv6) was selected. The aEv6 clone was then modified with the human IgG1 Fc fragment to improve its pharmacokinetic and immunologic properties. To assess the protective activity of the chimeric molecule aEv6-Fc, a lethal model of murine rVSV-GP infection was developed by using immunosuppression. The results obtained in lethal model mice have demonstrated the protective effect of aEv6-Fc. Thus, the nanobody and its modified derivative obtained in this study have shown potential protective value against Ebola virus.
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Affiliation(s)
- I. B. Esmagambetov
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - D. V. Shcheblyakov
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - D. A. Egorova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - O. L. Voronina
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - A. A. Derkaev
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - D. V. Voronina
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - O. Popova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - E. I. Ryabova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - D. N. Shcherbinin
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - E. I. Aksenova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - A. N. Semenov
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - M. S. Kunda
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - N. N. Ryzhova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - O. V. Zubkova
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - A. I. Tukhvatulin
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - D. Yu. Logunov
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - B. S. Naroditsky
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
| | - S. V. Borisevich
- 48 Central Research Institute, Ministry of Defense, Sergiev Posad-6, 141306 Russia
| | - A. L. Gintsburg
- Federal State Budgetary Institution “National Research Centre for Epidemiology and Microbiology named after the Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, Moscow, 123098 Russia
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6
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Dolzhikova IV, Shcherbinin DN, Logunov DY, Gintsburg AL. [Ebola virus ( Filoviridae: Ebolavirus: Zaire ebolavirus): fatal adaptation mutations]. Vopr Virusol 2021; 66:7-16. [PMID: 33683061 DOI: 10.36233/0507-4088-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/07/2021] [Indexed: 01/13/2023]
Abstract
Ebola virus disease (EVD) (former Ebola hemorrhagic fever) is one of the most dangerous infectious diseases affecting humans and primates. Since the identification of the first outbreak in 1976, there have been more than 25 outbreaks worldwide, the largest of which escalated into an epidemic in 2014-2016 and caused the death of more than 11,000 people. There are currently 2 independent outbreaks of this disease in the eastern and western parts of the Democratic Republic of the Congo (DRC) at the same time. Bats (Microchiroptera) are supposed to be the natural reservoir of EVD, but the infectious agent has not yet been isolated from them. Most animal viruses are unable to replicate in humans. They have to develop adaptive mutations (AM) to become infectious for humans. In this review based on the results of a number of studies, we hypothesize that the formation of AM occurs directly in the human and primate population and subsequently leads to the development of EVD outbreaks.
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Affiliation(s)
- I V Dolzhikova
- FSBI National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya of the Ministry of Health of Russia
| | - D N Shcherbinin
- FSBI National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya of the Ministry of Health of Russia
| | - D Yu Logunov
- FSBI National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya of the Ministry of Health of Russia
| | - A L Gintsburg
- FSBI National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya of the Ministry of Health of Russia
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Timofeeva TA, Rudneva IA, Sadykova GK, Lomakina NF, Lyashko AV, Shilov AA, Voronina OL, Aksenova EI, Ryzhova NN, Kunda MS, Asatryan MN, Shcherbinin DN, Timofeeva EB, Kushch AA, Prilipov AG, Adams SE, Logunov DY, Narodisky BS, Gintsburg AL. Variability of nonpathogenic influenza virus H5N3 under immune pressure. Acta Virol 2020; 64:480-489. [PMID: 33151742 DOI: 10.4149/av_2020_415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Mutations arising in influenza viruses that have undergone immune pressure may promote a successful spread of mutants in nature. In order to evaluate the variability of nonpathogenic influenza virus A/duck/Moscow/4182-C/2010(H5N3) and to determine the common epitopes between it and highly pathogenic H5N1 avian influenza viruses (HPAIV), a set of escape mutants was selected due to action of MABs specific against A/chicken/Pennsylvania/8125/83(H5N2), A/Vietnam/1203/04(H5N1) and A/duck/Novosibirsk/56/05(H5N1) viruses. The complete genomes of escape mutants were sequenced and amino acid point mutations were determined in HA, NA, PA, PB1, PB2, M1, M2, and NP proteins. Comprehensive analysis of the acquired mutations was performed using the Influenza Research Database (https://www.fludb.org) and revealed that all mutations were located inside short linear epitopes, in positions characterized by polymorphisms. Most of the mutations found were characterized as substitutions by predominant or alternative amino acids existing in nature. Antigenic changes depended only on substitutions at positions 126, 129, 131, 145 and 156 of HA (H3 numbering). The positions 126, 145 and 156 were common for HA/H5 of different phylogenetic lineages of H5N1 HPAIV (arisen from A/goose/Guangdong/1/96) and low pathogenic American and Eurasian viruses. Additionally, mutation S145P increased the temperature of HA heat inactivation, compared to wild-type, as was proved by reverse genetics. Moreover, nonpathogenic A/duck/Moscow/4182-C/2010(H5N3) and H5N1 HPAI viruses have the same structure of short linear epitopes in HA (145-157) and internal proteins (PB2: 186-200, 406-411; PB1: 135-143, 538-546; PA: 515-523; NP: 61-68; M1: 76-84; M2: 45-53). These facts may indicate that H5 wild duck nonpathogenic virus could be used as vaccine against H5N1 HPAIV. Keywords: avian influenza virus; H5 hemagglutinin; escape mutants; genetic analysis; phenotypic properties; site-specific mutagenesis.
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8
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Sedova ES, Verkhovskaya LV, Artemova EA, Shcherbinin DN, Lysenko AA, Rudneva IA, Lyashko AV, Alekseeva SA, Esmagambetov IB, Timofeeva TA, Shmarov MM. Protecting Mice from H7 Avian Influenza Virus by Immunisation with a Recombinant Adenovirus Encoding Influenza A Virus Conserved Antigens. ACTA ACUST UNITED AC 2020. [DOI: 10.30895/2221-996x-2020-20-1-60-67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Influenza is a highly contagious disease that causes annual epidemics and occasional pandemics. Birds are believed to be the source of newly emerging pandemic strains, including highly pathogenic avian influenza viruses of the subtype H7. The aim of the study: to evaluate the ability of the recombinant human adenovirus, serotype 5, which expresses genes of influenza A highly conserved antigens (ion channel M2 and nucleoprotein NP), to provide protection to laboratory mice against infection with a lethal dose of avian influenza virus, subtype H7. To achieve this goal, it was necessary to adapt influenza A virus, subtype H7 for reproduction in the lungs of mice, to characterise it, and to use it for evaluation of the protective properties of the recombinant adenovirus. Materials and methods: avian influenza virus A/Chicken/NJ/294508-12/2004 (H7N2) was adapted for reproduction in the lungs of mice by repeated passages. The adapted strain was sequenced and assessed using hemagglutination test, EID50 and LD50 for laboratory mice. BALB/c mice were immunised once with Ad5-tet-M2NP adenovirus intranasally, and 21 days after the immunisation they were infected with a lethal dose (5 LD50) of influenza virus A/Chicken/NJ/294508-12/2004 (H7N2) in order to assess the protective properties of the recombinant adenovirus. The level of viral shedding from the lungs of the infected mice was evaluated by titration of the lung homogenates in MDCK cell culture on days 3 and 6 after infection. The level of specific antibodies to H7 avian influenza virus was determined by indirect enzyme immunoassay. Results: the use of Ad5-tet-M2NP adenovirus for immunisation of the mice ensured 100% survival of the animals that had disease symptoms (weight loss) after their infection with the lethal dose (5 LD50) of H7 avian influenza virus. The study demonstrated a high post-vaccination level of humoral immune response to H7 avian influenza virus. The virus titer decreased significantly by day 6 in the lungs of mice that had been immunised with Ad5-tet-M2NP compared to the control group. Conclusion: the Ad5-tetM2NP recombinant adenovirus can be used to create a candidate pandemic influenza vaccine that would protect against avian influenza viruses, subtype H7, in particular.
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Affiliation(s)
- E. S. Sedova
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - L. V. Verkhovskaya
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - E. A. Artemova
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - D. N. Shcherbinin
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - A. A. Lysenko
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - I. A. Rudneva
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - A. V. Lyashko
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - S. A. Alekseeva
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - I. B. Esmagambetov
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - T. A. Timofeeva
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
| | - M. M. Shmarov
- National Research Centre for Epidemiology and Microbiology named after the honorary academician N. F. Gamaleya
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Shcherbinin DN, Alekseeva SV, Shmarov MM, Smirnov YA, Naroditskiy BS, Gintsburg AL. The Analysis of B-Cell Epitopes of Influenza Virus Hemagglutinin. Acta Naturae 2016. [DOI: 10.32607/20758251-2016-8-1-13-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Vaccination has been successfully used to prevent influenza for a long time. Influenza virus hemagglutinin (HA), which induces a humoral immune response in humans and protection against the flu, is the main antigenic component of modern influenza vaccines. However, new seasonal and pandemic influenza virus variants with altered structures of HA occasionally occur. This allows the pathogen to avoid neutralization with antibodies produced in response to previous vaccination. Development of a vaccine with the new variants of HA acting as antigens takes a long time. Therefore, during an epidemic, it is important to have passive immunization agents to prevent and treat influenza, which can be monoclonal or single-domain antibodies with universal specificity (broad-spectrum agents). We considered antibodies to conserved epitopes of influenza virus antigens as universal ones. In this paper, we tried to characterize the main B-cell epitopes of hemagglutinin and analyze our own and literature data on broadly neutralizing antibodies. We conducted a computer analysis of the best known conformational epitopes of influenza virus HAs using materials of different databases. The analysis showed that the core of the HA molecule, whose antibodies demonstrate pronounced heterosubtypic activity, can be used as a target for the search for and development of broad-spectrum antibodies to the influenza virus.
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Shcherbinin DN, Esmagambetov IB, Noskov AN, Selyaninov YO, Tutykhina IL, Shmarov MM, Logunov DY, Naroditskiy BS, Gintsburg AL. Protective Immune Response against Bacillus anthracis Induced by Intranasal Introduction of a Recombinant Adenovirus Expressing the Protective Antigen Fused to the Fc-fragment of IgG2a. Acta Naturae 2014. [DOI: 10.32607/20758251-2014-6-1-76-84] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Anthrax is a particularly dangerous infectious disease that affects humans and livestock. It is characterized by intoxication, serosanguineous skin lesions, development of lymph nodes and internal organs, and may manifest itsself in either a cutaneous or septic form. The pathogenic agent is Bacillus anthracis, a grampositive, endospore-forming, rod-shaped aerobic bacterium. Efficacious vaccines that can rapidly induce a long-term immune response are required to prevent anthrax infection in humans. In this study, we designed three recombinant human adenovirus serotype-5-based vectors containing various modifications of the fourth domain of the B. anthracis protective antigen (PA). Three PA modifications were constructed: a secretable form (Ad-sPA), a non-secretable form (Ad-cPA), and a form with the protective antigen fused to the Fc fragment of immunoglobulin G2a (Ad-PA-Fc). All these forms exhibited protective properties against Bacillus anthracis. The highest level of protection was induced by the Ad-PA-Fc recombinant adenovirus. Our findings indicate that the introduction of the Fc antibody fragment into the protective antigen significantly improves the protective properties of the Ad-PA-Fc adenovirus against B. anthracis.
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Shcherbinin DN, Esmagambetov IB, Noskov AN, Selyaninov YO, Tutykhina IL. Protective Immune Response against Bacillus anthracis Induced by Intranasal Introduction of a Recombinant Adenovirus Expressing the Protective Antigen Fused to the Fc-fragment of IgG2a. Acta Naturae 2014. [DOI: 10.32607/20758251-2014-76-84] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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12
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Shcherbinin DN, Esmagambetov IB, Noskov AN, Selyaninov YO, Tutykhina IL, Shmarov MM, Logunov DY, Naroditskiy BS, Gintsburg AL. Protective Immune Response against Bacillus anthracis Induced by Intranasal Introduction of a Recombinant Adenovirus Expressing the Protective Antigen Fused to the Fc-fragment of IgG2a. Acta Naturae 2014; 6:76-84. [PMID: 24772330 PMCID: PMC3999469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Anthrax is a particularly dangerous infectious disease that affects humans and livestock. It is characterized by intoxication, serosanguineous skin lesions, development of lymph nodes and internal organs, and may manifest itsself in either a cutaneous or septic form. The pathogenic agent is Bacillus anthracis, a grampositive, endospore-forming, rod-shaped aerobic bacterium. Efficacious vaccines that can rapidly induce a long-term immune response are required to prevent anthrax infection in humans. In this study, we designed three recombinant human adenovirus serotype-5-based vectors containing various modifications of the fourth domain of the B. anthracis protective antigen (PA). Three PA modifications were constructed: a secretable form (Ad-sPA), a non-secretable form (Ad-cPA), and a form with the protective antigen fused to the Fc fragment of immunoglobulin G2a (Ad-PA-Fc). All these forms exhibited protective properties against Bacillus anthracis. The highest level of protection was induced by the Ad-PA-Fc recombinant adenovirus. Our findings indicate that the introduction of the Fc antibody fragment into the protective antigen significantly improves the protective properties of the Ad-PA-Fc adenovirus against B. anthracis.
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Affiliation(s)
- D. N. Shcherbinin
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - I. B. Esmagambetov
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - A. N. Noskov
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - Yu. O. Selyaninov
- National Research Institute for Veterinary Virology and Microbiology of Russia, Russian Academy of Agricultural Sciences, 601120, Pokrov, Vladimir region, Russia
| | - I. L. Tutykhina
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - M. M. Shmarov
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - D. Yu. Logunov
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - B. S. Naroditskiy
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
| | - A. L. Gintsburg
- Gamaleya Research Institute for Epidemiology and Microbiology, Ministry of Public Health of the Russian Federation, Gamaleya Street 18, 123098, Moscow, Russia
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Esmagambetov IB, Sedova ES, Shcherbinin DN, Lysenko AA, Garas MN, Shmarov MM, Logunov DI. [Construction of recombinant adenoviral vector expressing genes of the conservative influenza proteins M2 and nucleoprotein]. Mol Gen Mikrobiol Virusol 2014:22-28. [PMID: 25080815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Influenza is a highly contagious and one of the most massive infection diseases. General epidemiological significance has a strain, which belongs to subtype A. A high degree of genetic variety leads to the permanent changes in the antigenic structure of the influenza virus. Therefore, the current influenza vaccines require periodic updating of the composition of strains. Presently, it is important to develop a universal vaccine that can protect against different strains of influenza A virus at the same time and is based on the conserved antigens of the influenza virus. The recombinant adenovirus vectors expressing genes of conserved viral antigenes may be a promising candidate vaccine against influenza A. Using the method of the homologous recombination, we developed in this study recombinant adenovirus of fifth serotype that expresses genes of the ion channel M2 and nucleoprotein NP of the influenza virus A. Genes of the consensus protein M2 and NP of human influenza A virus were included into the structure of the viral genome. The expression of the antigens M2 and NP using recombinant adenovirus vector was detected by a Western blot assay. The immunogenicity of the developed recombinant adenovirus vector was demonstrated by the intranasal immunization of laboratory mice.
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Sedova ES, Shcherbinin DN, Migunov AI, Smirnov YA, Logunov DY, Shmarov MM, Tsybalova LM, Naroditskiĭ BS, Kiselev OI, Gintsburg AL. Recombinant Influenza Vaccines. Acta Naturae 2012. [DOI: 10.32607/20758251-2012-4-4-17-27] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
This review covers the problems encountered in the construction and production of new recombinant influenza vaccines. New approaches to the development of influenza vaccines are investigated; they include reverse genetics methods, production of virus-like particles, and DNA- and viral vector-based vaccines. Such approaches as the delivery of foreign genes by DNA- and viral vector-based vaccines can preserve the native structure of antigens. Adenoviral vectors are a promising gene-delivery platform for a variety of genetic vaccines. Adenoviruses can efficiently penetrate the human organism through mucosal epithelium, thus providing long-term antigen persistence and induction of the innate immune response. This review provides an overview of the practicability of the production of new recombinant influenza cross-protective vaccines on the basis of adenoviral vectors expressing hemagglutinin genes of different influenza strains.
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Tukhvatulin AI, Logunov DY, Shcherbinin DN, Shmarov MM, Naroditsky BS, Gudkov AV, Gintsburg AL. Toll-like receptors and their adapter molecules. Biochemistry (Mosc) 2011; 75:1098-114. [PMID: 21077829 DOI: 10.1134/s0006297910090038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Toll-like receptors (TLR) are among key receptors of the innate mammalian immune system. Receptors of this family are able to recognize specific highly conserved molecular regions (patterns) in pathogen structures, thus initiating reactions of both innate and acquired immune response finally resulting in the elimination of the pathogen. In this case every individual TLR type is able to bind a broad spectrum of molecules of microbial origin characterized by different chemical properties and structures. Recent data demonstrate the existence of a multistep mechanism of the TLR recognition of the pathogen in which, in addition to receptors proper, the involvement of different adapter molecules is necessary. However, functions of separate adapter molecules as well as the principles of formation of a multicomponent system of ligand-specific recognition are still not quite understandable. We describe all identified as well as possible (candidate) adapter TLR molecules by giving their brief characteristics, and we also propose generalized possible variants of the TLR ligand-specific recognition with involvement of adapter molecules.
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Affiliation(s)
- A I Tukhvatulin
- Gamaleya Institute of Epidemiology and Microbiology, Russian Academy of Medical Sciences, Moscow, 123098, Russia.
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Tukhvatulin AI, Shcherbinin DN, Logunov DI, Shmarov MM, Naroditskiĭ BS. [The role of pattern-recognizing receptors in anti-infectious immunity]. Vestn Ross Akad Med Nauk 2011:47-54. [PMID: 22168039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Pattern-recognizing receptors (PRR) play a key role in the functioning of human immune system. They are the primary sensors of infection capable of distinguishing between various highly conservative molecular patterns (pathogen-associated molecular patterns (PAMPs)) contained in pathogenic organisms. Binding of these molecular patterns to PRR induces a variety of reactions of innate (secretion of proinflammatory cytokines and antimicrobial peptides, activation of phagocytosis, etc.) and adaptive (antibody processing and presentation, polarization of T-cell response, etc.) immunity. Great interest in the molecular mechanisms of pathogen recognition resulted in the discovery of numerous PRR. The aim of this review is to systematize the currently available data on PRR, their specificity, and role in the formation of anti-inflammatory immunity.
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Tutykhina IL, Shcherbinin DN, Shmarov MM, Logunov DI, Naroditskiĭ BS. [Advantages and prospects of the use of genetic vaccines for the protection from dangerous and socially significant infections]. Vestn Ross Akad Med Nauk 2011:39-47. [PMID: 22168038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
High frequency of epidemiological threats (H5N1 influenza, SARS, etc.) in modern world calls for the development of new flexible technologies for manufacturing efficacious vaccines and rapid reorientation of their production as appropriate. Genetic vaccination is one of such technologies aimed at prophylaxis of dangerous and socially significant infections. The technology is based on administration of one or several functionally active genes encoding for antigens of pathogens which induces formation of both cellular and humoral immunity against the respective microorganism. This property of genetic vaccines is used for the development of prophylactic schemes. New vaccines are currently being designed to prevent a variety of infections. The aim of the present review is to outline major trends in genetic vaccination leading to the improvement of its efficacy.
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MESH Headings
- Biological Availability
- Communicable Disease Control/methods
- Communicable Disease Control/trends
- Forecasting
- Humans
- Immunization, Passive/methods
- Immunization, Passive/trends
- Immunotherapy, Active/methods
- Immunotherapy, Active/trends
- Influenza A Virus, H5N1 Subtype/genetics
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza, Human/prevention & control
- Influenza, Human/virology
- Severe acute respiratory syndrome-related coronavirus/genetics
- Severe acute respiratory syndrome-related coronavirus/immunology
- Severe Acute Respiratory Syndrome/prevention & control
- Severe Acute Respiratory Syndrome/virology
- Vaccines, DNA/genetics
- Vaccines, DNA/pharmacokinetics
- Vaccines, Virosome/genetics
- Vaccines, Virosome/pharmacokinetics
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Shmarov MM, Sedova ES, Verkhovskaya LV, Rudneva IA, Bogacheva EA, Barykova YA, Shcherbinin DN, Lysenko AA, Tutykhina IL, Logunov DY, Smirnov YA, Naroditsky BS, Gintsburg AL. Induction of a Protective Heterosubtypic Immune Response Against the Influenza Virus by Using Recombinant Adenoviral Vectors Expressing Hemagglutinin of the Influenza H5 Virus. Acta Naturae 2010. [DOI: 10.32607/20758251-2010-2-1-111-118] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Shmarov MM, Sedova ES, Verkhovskaya LV, Rudneva IA, Bogacheva EA, Barykova YA, Shcherbinin DN, Lysenko AA, Tutykhina IL, Logunov DY, Smirnov YA, Naroditsky BS, Gintsburg AL. Induction of a Protective Heterosubtypic Immune Response Against the Influenza Virus by Using Recombinant Adenoviral Vectors Expressing Hemagglutinin of the Influenza H5 Virus. Acta Naturae 2010. [DOI: 10.32607/actanaturae.10783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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