1
|
Stepanova E, Isakova-Sivak I, Mezhenskaya D, Niskanen S, Matyushenko V, Bazhenova E, Rak A, Wong PF, Prokopenko P, Kotomina T, Krutikova E, Legotskiy S, Neterebskii B, Ostroukhova T, Sivak K, Orshanskaya Y, Yakovlev K, Rudenko L. Expression of the SARS-CoV-2 receptor-binding domain by live attenuated influenza vaccine virus as a strategy for designing a bivalent vaccine against COVID-19 and influenza. Virol J 2024; 21:82. [PMID: 38589848 PMCID: PMC11003101 DOI: 10.1186/s12985-024-02350-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/22/2024] [Indexed: 04/10/2024] Open
Abstract
Influenza and SARS-CoV-2 are two major respiratory pathogens that cocirculate in humans and cause serious illness with the potential to exacerbate disease in the event of co-infection. To develop a bivalent vaccine, capable of protecting against both infections, we inserted the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein into hemagglutinin (HA) molecule or into the open reading frame of the truncated nonstructural protein 1 (NS1) of live attenuated influenza vaccine (LAIV) virus and assessed phenotypic characteristics of the rescued LAIV-RBD viruses, as well as their immunogenicity in mouse and Syrian hamster animal models. A panel of 9 recombinant LAIV-RBD viruses was rescued using the A/Leningrad/17 backbone. Notably, only two variants with RBD insertions into the HA molecule could express sufficient quantities of RBD protein in infected MDCK cells. Intranasal immunization of mice induced high levels of anti-influenza antibody responses in all chimeric LAIV-RBD viruses, which was comparable to the LAIV virus vector. The RBD-specific antibody responses were most pronounced in the variant expressing RBD194 fragment as a chimeric HA protein. This candidate was further tested in Syrian hamsters and was shown to be immunogenic and capable of protecting animals against both infections.
Collapse
Affiliation(s)
| | | | - Daria Mezhenskaya
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Sergei Niskanen
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | | | | | - Alexandra Rak
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Pei Fong Wong
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Polina Prokopenko
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Tatiana Kotomina
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Elena Krutikova
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| | - Sergei Legotskiy
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Bogdan Neterebskii
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Tatiana Ostroukhova
- Joint-Stock Company «BIOCAD» (JSC «BIOCAD») Saint Petersburg, Intracity Municipality the Settlement of Strelna, the Settlement of Strelna, ul. Svyazi, d. 38, str. 1, pomeshch. 89, Saint Petersburg, 198515, Russia
| | - Konstantin Sivak
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Yana Orshanskaya
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Kirill Yakovlev
- Smorodintsev Research Institute of Influenza, Saint Petersburg, 197376, Russia
| | - Larisa Rudenko
- Institute of Experimental Medicine, Saint Petersburg, 197022, Russia
| |
Collapse
|
2
|
Adonina S, Bazhenova E, Bazovkina D. Effect of Short Photoperiod on Behavior and Brain Plasticity in Mice Differing in Predisposition to Catalepsy: The Role of BDNF and Serotonin System. Int J Mol Sci 2024; 25:2469. [PMID: 38473717 DOI: 10.3390/ijms25052469] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
Seasonal affective disorder is characterized by depression during fall/winter as a result of shorter daylight. Catalepsy is a syndrome of some grave mental diseases. Both the neurotransmitter serotonin (5-HT) and brain-derived neurotrophic factor (BDNF) are involved in the pathophysiological mechanisms underlying catalepsy and depressive disorders. The aim was to compare the response of behavior and brain plasticity to photoperiod alterations in catalepsy-resistant C57BL/6J and catalepsy-prone CBA/Lac male mice. Mice of both strains were exposed for six weeks to standard-day (14 h light/10 h darkness) or short-day (4 h light/20 h darkness) conditions. Short photoperiod increased depressive-like behavior in both strains. Only treated CBA/Lac mice demonstrated increased cataleptic immobility, decreased brain 5-HT level, and the expression of Tph2 gene encoding the key enzyme for 5-HT biosynthesis. Mice of both strains maintained under short-day conditions, compared to those under standard-day conditions, showed a region-specific decrease in the brain transcription of the Htr1a, Htr4, and Htr7 genes. After a short photoperiod exposure, the mRNA levels of the BDNF-related genes were reduced in CBA/Lac mice and were increased in the C57BL/6J mice. Thus, the predisposition to catalepsy considerably influences the photoperiodic changes in neuroplasticity, wherein both C57BL/6J and CBA/Lac mice can serve as a powerful tool for investigating the link between seasons and mood.
Collapse
Affiliation(s)
- Svetlana Adonina
- Federal Research Center Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Lavrentieva 10, Novosibirsk 630090, Russia
| | - Ekaterina Bazhenova
- Federal Research Center Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Lavrentieva 10, Novosibirsk 630090, Russia
| | - Darya Bazovkina
- Federal Research Center Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Lavrentieva 10, Novosibirsk 630090, Russia
| |
Collapse
|
3
|
Wong PF, Isakova-Sivak I, Stepanova E, Krutikova E, Bazhenova E, Rekstin A, Rudenko L. Development of Cross-Reactive Live Attenuated Influenza Vaccine Candidates against Both Lineages of Influenza B Virus. Vaccines (Basel) 2024; 12:95. [PMID: 38250908 PMCID: PMC10821225 DOI: 10.3390/vaccines12010095] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/30/2023] [Accepted: 01/16/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Influenza viruses continue to cause a significant social and economic burden globally. Vaccination is recognized as the most effective measure to control influenza. Live attenuated influenza vaccines (LAIVs) are an effective means of preventing influenza, especially among children. A reverse genetics (RG) system is required to rapidly update the antigenic composition of vaccines, as well as to design LAIVs with a broader spectrum of protection. Such a system has been developed for the Russian LAIVs only for type A strains, but not for influenza B viruses (IBV). METHODS All genes of the B/USSR/60/69 master donor virus (B60) were cloned into RG plasmids, and the engineered B60, as well as a panel of IBV LAIV reassortants were rescued from plasmid DNAs encoding all viral genes. The engineered viruses were evaluated in vitro and in a mouse model. RESULTS The B60 RG system was successfully developed, which made it possible to rescue LAIV reassortants with the desired antigenic composition, including hybrid strains with hemagglutinin and neuraminidase genes belonging to the viruses from different IBV lineages. The LAIV candidate carrying the HA of the B/Victoria-lineage virus and NA from the B/Yamagata-lineage virus demonstrated optimal characteristics in terms of safety, immunogenicity and cross-protection, prompting its further assessment as a broadly protective component of trivalent LAIV. CONCLUSIONS The new RG system for B60 MDV allowed the rapid generation of type B LAIV reassortants with desired genome compositions. The generation of hybrid LAIV reassortants with HA and NA genes belonging to the opposite IBV lineages is a promising approach for the development of IBV vaccines with broad cross-protection.
Collapse
Affiliation(s)
| | - Irina Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, 197022 St. Petersburg, Russia; (P.-F.W.); (E.S.); (E.K.); (E.B.); (A.R.); (L.R.)
| | | | | | | | | | | |
Collapse
|
4
|
Al Farroukh M, Kiseleva I, Stepanova E, Bazhenova E, Krutikova E, Tkachev A, Chistyakova A, Rekstin A, Puchkova L, Rudenko L. The Effect of Mice Adaptation Process on the Pathogenicity of Influenza A/South Africa/3626/2013 (H1N1)pdm09 Model Strain. Int J Mol Sci 2023; 24:17386. [PMID: 38139214 PMCID: PMC10743444 DOI: 10.3390/ijms242417386] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/24/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023] Open
Abstract
Influenza virus strain A/South Africa/3626/2013 (H1N1)pdm09 (SA-WT) is a non-mouse-adapted model strain that has naturally high pathogenic properties in mice. It has been suggested that the high pathogenicity of this strain for mice could be due to the three strain-specific substitutions in the polymerase complex (Q687R in PB1, N102T in PB2, and E358E/K heterogeneity in PB2). To evaluate the role of these replacements, SA-WT was passaged five times in mouse lungs, and the genome of the mouse-adapted version of the SA-WT strain (SA-M5) was sequenced. SA-M5 lost E358E/K heterogeneity and retained E358, which is the prevalent amino acid at this position among H1N1pdm09 strains. In addition, in the hemagglutinin of SA-M5, two heterogeneous substitutions (G155G/E and S190S/R) were identified. Both viruses, SA-M5 and SA-WT, were compared for their toxicity, ability to replicate, pathogenicity, and immunogenicity in mice. In mice infected with SA-M5 or SA-WT strains, toxicity, virus titer in pulmonary homogenates, and mouse survival did not differ significantly. In contrast, an increase in the immunogenicity of SA-M5 compared to SA-WT was observed. This increase could be due to the substitutions G155G/E and S190S/R in the HA of SA-M5. The prospects for using SA-M5 in studying the immunogenicity mechanisms were also discussed.
Collapse
Affiliation(s)
- Mohammad Al Farroukh
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, St. Petersburg 194021, Russia;
| | - Irina Kiseleva
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Ekaterina Stepanova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Ekaterina Bazhenova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Elena Krutikova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Artem Tkachev
- Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, St. Petersburg 194021, Russia;
| | - Anna Chistyakova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Andrey Rekstin
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Ludmila Puchkova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| | - Larisa Rudenko
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, St. Petersburg 197022, Russia; (E.S.); (E.B.); (E.K.); (A.C.); (A.R.); (L.P.); (L.R.)
| |
Collapse
|
5
|
Evsiukova VS, Bazovkina D, Bazhenova E, Kulikova EA, Kulikov AV. Tryptophan Hydroxylase 2 Deficiency Modifies the Effects of Fluoxetine and Pargyline on the Behavior, 5-HT- and BDNF-Systems in the Brain of Zebrafish ( Danio rerio). Int J Mol Sci 2021; 22:ijms222312851. [PMID: 34884655 PMCID: PMC8657639 DOI: 10.3390/ijms222312851] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 11/24/2022] Open
Abstract
The mechanisms of resistance to antidepressant drugs is a key and still unresolved problem of psychopharmacology. Serotonin (5-HT) and brain-derived neurotrophic factor (BDNF) play a key role in the therapeutic effect of many antidepressants. Tryptophan hydroxylase 2 (TPH2) is the rate-limiting enzyme in 5-HT synthesis in the brain. We used zebrafish (Danio rerio) as a promising model organism in order to elucidate the effect of TPH2 deficiency caused by p-chlorophenylalanine (pCPA) on the alterations in behavior and expression of 5-HT-related (Tph2, Slc6a4b, Mao, Htr1aa, Htr2aa) and BDNF-related (Creb, Bdnf, Ntrk2a, Ngfra) genes in the brain after prolonged treatment with two antidepressants, inhibitors of 5-HT reuptake (fluoxetine) and oxidation (pargyline). In one experiment, zebrafish were treated for 72 h with 0.2 mg/L fluoxetine, 2 mg/L pCPA, or the drugs combination. In another experiment, zebrafish were treated for 72 h with 0.5 mg/L pargyline, 2 mg/L pCPA, or the drugs combination. Behavior was studied in the novel tank diving test, mRNA levels were assayed by qPCR, 5-HT and its metabolite concentrations were measured by HPLC. The effects of interaction between pCPA and the drugs on zebrafish behavior were observed: pCPA attenuated “surface dwelling” induced by the drugs. Fluoxetine decreased mRNA levels of Tph2 and Htr2aa genes, while pargyline decreased mRNA levels of Slc6a4b and Htr1aa genes. Pargyline reduced Creb, Bdnf and Ntrk2a genes mRNA concentration only in the zebrafish treated with pCPA. The results show that the disruption of the TPH2 function can cause a refractory to antidepressant treatment.
Collapse
Affiliation(s)
- Valentina S. Evsiukova
- Department of Psychoneuropharmacology, Federal Research Center Institute of Cytology and Genetic Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (V.S.E.); (E.A.K.)
| | - Daria Bazovkina
- Department of Behavioral Neurogenomics, Federal Research Center Institute of Cytology and Genetic Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Ekaterina Bazhenova
- Department of Genetic Collections of Neural Disorders, Federal Research Center Institute of Cytology and Genetic Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Elizabeth A. Kulikova
- Department of Psychoneuropharmacology, Federal Research Center Institute of Cytology and Genetic Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (V.S.E.); (E.A.K.)
| | - Alexander V. Kulikov
- Department of Genetic Collections of Neural Disorders, Federal Research Center Institute of Cytology and Genetic Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Correspondence: ; Tel.: +7-3833636187
| |
Collapse
|
6
|
Stepanova E, Krutikova E, Wong PF, Matyushenko V, Bazhenova E, Isakova-Sivak I, Rudenko L. Safety, Immunogenicity, and Protective Efficacy of a Chimeric A/B Live Attenuated Influenza Vaccine in a Mouse Model. Microorganisms 2021; 9:microorganisms9020259. [PMID: 33513862 PMCID: PMC7910998 DOI: 10.3390/microorganisms9020259] [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: 12/07/2020] [Revised: 01/06/2021] [Accepted: 01/25/2021] [Indexed: 01/20/2023] Open
Abstract
Influenza A and B viruses cause significant morbidity and mortality worldwide. Current influenza vaccines are composed of three or four strains: A/H1N1, A/H3N2, and B (Victoria and Yamagata lineages). It is of great interest if immunization against both type A and B influenza viruses can be combined in a single vaccine strain, thus reducing the cost of vaccine production and the possibility of strain interference within the multicomponent vaccine. In the current study, we developed an experimental live cold-adapted influenza intertype reassortant (influenza A and B) vaccine on the live attenuated influenza vaccine (LAIV) A/Leningrad/134/17/57 backbone. Hemagglutinin (HA) and neuraminidase (NA) functional domains were inherited from the influenza B/Brisbane/60/2008 strain, whereas their packaging signals were substituted with appropriate fragments of influenza A virus genes. The recombinant A/B virus efficiently replicated in eggs and Madin–Darby Canine Kidney (MDCK) cells under optimal conditions, temperature-sensitive phenotype was maintained, and its antigenic properties matched the influenza B parental virus. The chimeric vaccine was attenuated in mice: after intranasal immunization, viral replication was seen only in nasal turbinates but not in the lungs. Immunological studies demonstrated the induction of IgG antibody responses against the influenza A and B virus, whereas hemagglutination inhibition (HAI) and neutralizing antibodies were detected only against the influenza B virus, resulting in significant protection of immunized animals against influenza B virus challenge. IFNγ-secreting CD8 effector memory T cells (CD44+CD62L−) were detected in mouse splenocytes after stimulation with the specific influenza A peptide (NP366); however, the T-cell response was not sufficient to protect animals against infection with a high-dose mouse-adapted A/California/07/2009 (H1N1pdm09) virus, most probably due to the mismatch of key T-cell epitopes of the H1N1 virus and the LAIV backbone. Overall, generation of the chimeric A/B LAIV virus on a licensed LAIV backbone demonstrated prospects for the development of safe and efficacious vaccine candidates that afford combined protection against both type A and type B influenza viruses; however, further optimization of the T-cell epitope content within the LAIV backbone may be required.
Collapse
|
7
|
Kiseleva I, Isakova-Sivak I, Stukova M, Erofeeva M, Donina S, Larionova N, Krutikova E, Bazhenova E, Stepanova E, Vasilyev K, Matyushenko V, Krylova M, Galatonova J, Ershov A, Lioznov D, Sparrow EG, Torelli G, Rudenko L. A Phase 1 Randomized Placebo-Controlled Study to Assess the Safety, Immunogenicity and Genetic Stability of a New Potential Pandemic H7N9 Live Attenuated Influenza Vaccine in Healthy Adults. Vaccines (Basel) 2020; 8:vaccines8020296. [PMID: 32532097 PMCID: PMC7350028 DOI: 10.3390/vaccines8020296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/01/2020] [Revised: 05/30/2020] [Accepted: 06/09/2020] [Indexed: 01/06/2023] Open
Abstract
This study describes a double-blind randomized placebo-controlled phase I clinical trial in healthy adults of a new potential pandemic H7N9 live attenuated influenza vaccine (LAIV) based on the human influenza virus of Yangtze River Delta hemagglutinin lineage (ClinicalTrials.gov Identifier: NCT03739229). Two doses of H7N9 LAIV or placebo were administered intranasally to 30 and 10 subjects, respectively. The vaccine was well-tolerated and not associated with increased rates of adverse events or with any serious adverse events. Vaccine virus was detected in nasal swabs during the 6 days after vaccination or revaccination. A lower frequency of shedding was observed after the second vaccination. Twenty-five clinical viral isolates obtained after the first and second doses of vaccine retained the temperature-sensitive and cold-adapted phenotypic characteristics of LAIV. There was no confirmed transmission of the vaccine strain from vaccinees to placebo recipients. After the two H7N9 LAIV doses, an immune response was observed in 96.6% of subjects in at least one of the assays conducted.
Collapse
Affiliation(s)
- Irina Kiseleva
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
- Correspondence: ; Tel.: +7-(812)-2346-860
| | - Irina Isakova-Sivak
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Marina Stukova
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197376 St Petersburg, Russia; (M.S.); (M.E.); (K.V.); (D.L.)
| | - Marianna Erofeeva
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197376 St Petersburg, Russia; (M.S.); (M.E.); (K.V.); (D.L.)
| | - Svetlana Donina
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Natalie Larionova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Elena Krutikova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Ekaterina Bazhenova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Ekaterina Stepanova
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Kirill Vasilyev
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197376 St Petersburg, Russia; (M.S.); (M.E.); (K.V.); (D.L.)
| | - Victoria Matyushenko
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| | - Marina Krylova
- The Federal State Unitary Enterprise “Scientific and Production Association for Immunological Preparations “Microgen”, Ministry of Health of Russian Federation, 127473 Moscow, Russia; (M.K.); (J.G.); (A.E.)
| | - Julia Galatonova
- The Federal State Unitary Enterprise “Scientific and Production Association for Immunological Preparations “Microgen”, Ministry of Health of Russian Federation, 127473 Moscow, Russia; (M.K.); (J.G.); (A.E.)
| | - Aleksey Ershov
- The Federal State Unitary Enterprise “Scientific and Production Association for Immunological Preparations “Microgen”, Ministry of Health of Russian Federation, 127473 Moscow, Russia; (M.K.); (J.G.); (A.E.)
| | - Dmitry Lioznov
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197376 St Petersburg, Russia; (M.S.); (M.E.); (K.V.); (D.L.)
| | | | - Guido Torelli
- World Health Organization, 1211 Geneva, Switzerland; (E.G.S.); (G.T.)
| | - Larisa Rudenko
- Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (I.I.-S.); (S.D.); (N.L.); (E.K.); (E.B.); (E.S.); (V.M.); (L.R.)
| |
Collapse
|
8
|
Kiseleva I, Rekstin A, Al Farroukh M, Bazhenova E, Katelnikova A, Puchkova L, Rudenko L. Non-Mouse-Adapted H1N1pdm09 Virus as a Model for Influenza Research. Viruses 2020; 12:v12060590. [PMID: 32485821 PMCID: PMC7354452 DOI: 10.3390/v12060590] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 12/26/2022] Open
Abstract
The number of lung-adapted influenza viruses is limited. Most of them are not antigenically related to current circulating viruses. Viruses similar to recent strains are required for screening modern antiviral compounds and studying new vaccine candidates against novel influenza viruses. The process by which an influenza virus adapts to a new host is rather difficult. The aim of this study was to select a non-adapted current virus whose major biological properties correspond to those of classical lab-adapted viruses. Mice were inoculated intranasally with non-lung-adapted influenza viruses of subtype H1N1pdm09. They were monitored closely for body weight loss, mortality outcomes and gross pathology for 14 days following inoculation, as well as viral replication in lung tissue. Lung-adapted PR8 virus was used as a control. The tested viruses multiplied equally well in the lower respiratory tract of mice without prior adaptation but dramatically differed in lethality; the differences in their toxicity and pathogenicity in mice were established. A/South Africa/3626/2013 (H1N1)pdm09 virus was found to be an appropriate candidate to replace PR8 as a model virus for influenza research. No prior adaptation to the animal model is needed to reach the pathogenicity level of the classical mouse-adapted PR8 virus.
Collapse
Affiliation(s)
- Irina Kiseleva
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
- Correspondence:
| | - Andrey Rekstin
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
| | - Mohammad Al Farroukh
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
| | - Ekaterina Bazhenova
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
| | - Anastasia Katelnikova
- Department of Toxicology and Microbiology, Institute of Preclinical Research Ltd., 188663 St Petersburg, Russia;
| | - Ludmila Puchkova
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
| | - Larisa Rudenko
- Department of Virology, Federal State Budgetary Scientific Institution “Institute of Experimental Medicine”, 197376 St Petersburg, Russia; (A.R.); (M.A.F.); (E.B.); (L.P.); (L.R.)
| |
Collapse
|
9
|
Khotskin N, Plusnina A, Kulikova E, Bazhenova E, Fursenko D, Sorokin I, Kolotygin I, Mormede P, Terenina E, Shevelev O, Kulikov A. On association of the lethal yellow (AY) mutation in the agouti gene with the alterations in mouse brain and behavior. IBRO Rep 2019. [DOI: 10.1016/j.ibror.2019.07.644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
10
|
Bazovkina D, Pershina A, Bazhenova E, Kulikova E. The effect of short photoperiod on behavior, brain-derived neurotrophic factor and brain serotonin system in tumour necrosis factor knockout mice. IBRO Rep 2019. [DOI: 10.1016/j.ibror.2019.07.384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
11
|
|
12
|
Shcherbik S, Pearce N, Carney P, Bazhenova E, Larionova N, Kiseleva I, Rudenko L, Kumar A, Goldsmith CS, Dugan V, Stevens J, Wentworth DE, Bousse T. Evaluation of A(H1N1)pdm09 LAIV vaccine candidates stability and replication efficiency in primary human nasal epithelial cells. Vaccine X 2019; 2:100031. [PMID: 31384746 PMCID: PMC6668239 DOI: 10.1016/j.jvacx.2019.100031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 04/15/2019] [Revised: 06/11/2019] [Accepted: 06/17/2019] [Indexed: 01/06/2023] Open
Abstract
The recent reduction of live attenuated influenza vaccine (LAIV) effectiveness in multivalent formulations was particularly associated with the A(H1N1)pdm09 component. In the 2017 the WHO vaccine composition committee changed its recommendations for the A(H1N1)pdm09 component to include an A/Michigan/45/2015-like virus. We evaluated effectiveness and quality of newly developed and previous A(H1N1)pdm09 LAIV reassortants through assessment of their thermal and pH stability, receptor binding specificity and replication fitness in primary human airway epithelial cells of nasal origin (hAECN). Our analysis showed that LAIV expressed hemagglutinin (HA) and neuraminidase (NA) from an A/Michigan/45/2015-like strain A/New York/61/2015 (A/New York/61/2015-CDC-LV16A, NY-LV16A), exhibit higher thermal and pH stability compared to the previous vaccine candidates expressing HA and NA from A/California/07/2009 and A/Bolivia/559/2013 (A17/Cal09 and A17/Bol13). Reassortants A/South Africa/3626/2013-CDC-LV14A (SA-LV14A) and NY-LV16A showed preferential binding to α2,6 sialic acid (SA) receptors and replicated at higher titers and more extensively in hAECN compared to A17/Cal09 and A17/Bol13, which had an α2,3 SA receptor binding preference. Our data analysis supports selection of A/New York/61/2015-CDC-LV16A for LAIV formulation and the introduction of new assays for LAIV characterization.
Collapse
Affiliation(s)
- Svetlana Shcherbik
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Nicholas Pearce
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
- Battelle, Atlanta, GA 30329, United States
| | - Paul Carney
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Ekaterina Bazhenova
- Institute of Experimental Medicine, Department of Virology, St. Petersburg, Russia
| | - Natalie Larionova
- Institute of Experimental Medicine, Department of Virology, St. Petersburg, Russia
| | - Irina Kiseleva
- Institute of Experimental Medicine, Department of Virology, St. Petersburg, Russia
| | - Larisa Rudenko
- Institute of Experimental Medicine, Department of Virology, St. Petersburg, Russia
| | - Amrita Kumar
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
- Battelle, Atlanta, GA 30329, United States
| | - Cynthia S. Goldsmith
- Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Vivien Dugan
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - James Stevens
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - David E. Wentworth
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
| | - Tatiana Bousse
- Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, United States
- Corresponding author.
| |
Collapse
|
13
|
Kiseleva I, Stepanova E, Krutikova E, Donina S, Rekstin A, Bazhenova E, Pisareva M, Katelnikova A, Kryshen K, Muzhikyan A, Grigorieva E, Rudenko L. Could trivalent LAIV protect against both genetic lineages of influenza B virus? vacres 2019. [DOI: 10.29252/vacres.6.1.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
14
|
Rudenko L, Kiseleva I, Krutikova E, Stepanova E, Isakova-Sivak I, Donina S, Rekstin A, Pisareva M, Bazhenova E, Kotomina T, Katelnikova A, Muzhikyan A, Makarov V, Sparrow EG, Torelli G. Two Live Attenuated Vaccines against Recent Low⁻and Highly Pathogenic H7N9 Influenza Viruses Are Safe and Immunogenic in Ferrets. Vaccines (Basel) 2018; 6:vaccines6040074. [PMID: 30388790 PMCID: PMC6313887 DOI: 10.3390/vaccines6040074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/21/2018] [Accepted: 09/27/2018] [Indexed: 12/11/2022] Open
Abstract
Influenza H7N9 virus is a potentially pandemic subtype to which most people are immunologically naïve. To be better prepared for the potential occurrence of an H7N9 pandemic, in 2017 the World Health Organization recommended developing candidate vaccine viruses from two new H7N9 viruses, A/Guangdong/17SF003/2016 (A/GD) and A/Hong Kong/125/2017 (A/HK). This report describes the development of live attenuated influenza vaccine (LAIV) candidates against A/GD and A/HK viruses and study of their safety and immunogenicity in the ferret model in order to choose the most promising one for a phase I clinical trial. The A/HK-based vaccine candidate (A/17/HK) was developed by classical reassortment in eggs. The A/GD-based vaccine candidate (A/17/GD) was generated by reverse genetics. Ferrets were vaccinated with two doses of LAIV or phosphate-buffered saline. Both H7N9 LAIVs tested were safe for ferrets, as shown by absence of clinical signs, and by virological and histological data; they were immunogenic after a single vaccination. These results provide a compelling argument for further testing of these vaccines in volunteers. Since the A/HK virus represents the cluster that has caused the majority of human cases, and because the A/HK-based LAIV candidate was developed by classical reassortment, this is the preferred candidate for a phase I clinical trial.
Collapse
Affiliation(s)
- Larisa Rudenko
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | - Irina Kiseleva
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | - Elena Krutikova
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | | | | | - Svetlana Donina
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | - Andrey Rekstin
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | - Maria Pisareva
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | | | - Tatiana Kotomina
- Institute of Experimental Medicine, St. Petersburg 197376, Russia.
| | | | - Arman Muzhikyan
- Institute of Preclinical Research Ltd., St. Petersburg 188663, Russia.
| | - Valery Makarov
- Institute of Preclinical Research Ltd., St. Petersburg 188663, Russia.
| | | | - Guido Torelli
- World Health Organization, 1211 Geneva, Switzerland.
| |
Collapse
|
15
|
Miroshnikova V, Panteleeva A, Demina E, Usenko T, Bazhenova E, Semenova I, Berkovich O, Baranova E, Pchelina S. Relationship of orphan receptor RORα and cholesterol transporters ABCA1 and ABCG1 expression in visceral adipose tissue. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
16
|
Kopytova A, Usenko T, Miroshnikova V, Bazhenova E, Nikolaev M, Panteleeva A, Semenova I, Neimark A, Baranova E, Pchelina S. Association of Pro12Ala PPARγ and -308G/A TNFα with PPARγ and TNFα mRNA levels in visceral abdominal tissue in fertile women in russia. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
17
|
Kiseleva I, Dubrovina I, Fedorova E, Larionova N, Isakova-Sivak I, Bazhenova E, Pisareva M, Kuznetsova V, Flores J, Rudenko L. Genetic stability of live attenuated vaccines against potentially pandemic influenza viruses. Vaccine 2015; 33:7008-14. [PMID: 26432909 DOI: 10.1016/j.vaccine.2015.09.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 02/10/2015] [Revised: 09/04/2015] [Accepted: 09/14/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Ensuring genetic stability is a prerequisite for live attenuated influenza vaccine (LAIV). This study describes the results of virus shedding and clinical isolates' testing of Phase I clinical trials of Russian LAIVs against potentially pandemic influenza viruses in healthy adults. METHODS Three live attenuated vaccines against potentially pandemic influenza viruses, H2N2 LAIV, H5N2 LAIV and H7N3 LAIV, generated by classical reassortment in eggs, were studied. For each vaccine tested, subjects were randomly distributed into two groups to receive two doses of either LAIV or placebo at a 3:1 vaccine/placebo ratio. Nasal swabs were examined for vaccine virus shedding by culturing in eggs and by PCR. Vaccine isolates were tested for temperature sensitivity and cold-adaptation (ts/ca phenotypes) and for nucleotide sequence. RESULTS The majority of nasal wash positive specimens were detected on the first day following vaccination. PCR method demonstrated higher sensitivity than routine virus isolation in eggs. None of the placebo recipients had detectable vaccine virus replication. All viruses isolated from the immunized subjects retained the ts/ca phenotypic characteristics of the master donor virus (MDV) and were shown to preserve all attenuating mutations described for the MDV. These data suggest high level of vaccine virus genetic stability after replication in humans. During manufacture process, no additional mutations occurred in the genome of H2N2 LAIV. In contrast, one amino acid change in the HA of H7N3 LAIV and two additional mutations in the HA of H5N2 LAIV manufactured vaccine lot were detected, however, they did not affect their ts/ca phenotypes. CONCLUSIONS Our clinical trials revealed phenotypic and genetic stability of the LAIV viruses recovered from the immunized volunteers. In addition, no vaccine virus was detected in the placebo groups indicating the lack of person-to-person transmission. LAIV TRIAL REGISTRATION at ClinicalTrials.gov: H7N3-NCT01511419; H5N2-NCT01719783; H2N2-NCT01982331.
Collapse
Affiliation(s)
- Irina Kiseleva
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia.
| | - Irina Dubrovina
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | - Ekaterina Fedorova
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | - Natalie Larionova
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | - Irina Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | - Ekaterina Bazhenova
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | - Maria Pisareva
- Department of Molecular Virology, Institute of Influenza, St Petersburg 197376, Russia
| | - Victoria Kuznetsova
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| | | | - Larisa Rudenko
- Department of Virology, Institute of Experimental Medicine, 12 Acad. Pavlov Street , St Petersburg 197376, Russia
| |
Collapse
|
18
|
Kiseleva I, Larionova N, Fedorova E, Bazhenova E, Dubrovina I, Isakova-Sivak I, Rudenko L. Contribution of neuraminidase of influenza viruses to the sensitivity to sera inhibitors and reassortment efficiency. Open Microbiol J 2014; 8:59-70. [PMID: 25132869 PMCID: PMC4133923 DOI: 10.2174/1874285801408010059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 04/28/2014] [Revised: 05/19/2014] [Accepted: 05/19/2014] [Indexed: 11/22/2022] Open
Abstract
Live attenuated influenza vaccine (LAIV) represent reassortant viruses with hemagglutinin (HA) and neuraminidase (NA) gene segments inherited from circulating wild-type (WT) parental influenza viruses recommended for inclusion into seasonal vaccine formulation, and the 6 internal protein-encoding gene segments from cold-adapted attenuated master donor viruses (genome composition 6:2). In this study, we describe the obstacles in developing LAIV strains while taking into account the phenotypic peculiarities of WT viruses used for reassortment. Genomic composition analysis of 849 seasonal LAIV reassortants revealed that over 80% of reassortants based on inhibitor-resistant WT viruses inherited WT NA, compared to 26% of LAIV reassortants based on inhibitor-sensitive WT viruses. In addition, the highest percentage of LAIV genotype reassortants was achieved when WT parental viruses were resistant to non-specific serum inhibitors. We demonstrate that NA may play a role in influenza virus sensitivity to non-specific serum inhibitors. Replacing NA of inhibitor-sensitive WT virus with the NA of inhibitor-resistant master donor virus significantly decreased the sensitivity of the resulting reassortant virus to serum heat-stable inhibitors.
Collapse
Affiliation(s)
- Irina Kiseleva
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Natalie Larionova
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Ekaterina Fedorova
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Ekaterina Bazhenova
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Irina Dubrovina
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Irina Isakova-Sivak
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Larisa Rudenko
- Department of Virology, Institute of Experimental Medicine, St. Petersburg, Russia
| |
Collapse
|
19
|
Kiseleva I, Dubrovina I, Bazhenova E, Fedorova E, Larionova N, Rudenko L. Possible outcomes of reassortment in vivo between wild type and live attenuated influenza vaccine strains. Vaccine 2012; 30:7395-9. [PMID: 23063833 DOI: 10.1016/j.vaccine.2012.09.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 04/24/2012] [Accepted: 09/28/2012] [Indexed: 11/25/2022]
Abstract
Reassortment of influenza viruses in nature has been well documented. Genetic reassortment plays a key role in emergence of new influenza A strains, including pandemic viruses. Permissive host can be simultaneously coinfected with multiple influenza viruses. During genetic reassortment gene segments are exchanged between parental viruses that may lead to some enhancement of virulence of reassortant progeny. At present, vaccination with live attenuated cold-adapted (ca) reassortant vaccine (LAIV) is used as an effective public health measure for influenza prophylaxis. However, there are concerns about a potential of simultaneous infection of human host with ca and wild type (wt) influenza viruses which might produce progeny that contain novel, more virulent genotypes. The aim of this study was to investigate potential consequences of reassortment of wt with LAIV strains in vivo. We demonstrated that reassortment of wt viruses with ca strains in guinea pigs have resulted in progeny virus which caused reduced macroscopic lesions of chicken embryos. According to phenotypical data 95% (19 out of 20) isolated reassortants were restricted in replication at elevated temperature of 40°C. None of reassortants were more virulent than wt parents, or revealed significantly higher macroscopic lesions than wt parental viruses. Our results suggest that genetic reassortment between wt and vaccine strain is unlikely to lead to virulent reassortant progeny. These findings provide additional support of LAIV safety data.
Collapse
Affiliation(s)
- Irina Kiseleva
- Institute of Experimental Medicine, RAMS, St. Petersburg, Russia.
| | | | | | | | | | | |
Collapse
|
20
|
Belyaeva O, Karonova T, Bazhenova E, Baranova E, Berkovich O, Berezina A, Ananieva N, Mandal V, Shlyakhto E. MS18 C-REACTIVE PROTEIN LEVEL AND CAROTID ARTERIES ATHEROSCLEROSIS IN ABDOMINAL OBESITY PATIENTS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70519-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
21
|
Bazhenova E. [Population censuses in China]. Vestn Statistiki 2002:54-7. [PMID: 12178736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
22
|
Bazhenova E. Population census in China. Far East Aff 2001:137-40. [PMID: 11616966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
|